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  • Showing only topics with the tag "help". Back to normal view
    1. Docker rootless and Watchtower and some general questions about Docker

      I finally decided to accepted that my interest in working and playing with computers and servers is worth to spend some money on. So I ditched my old box in the corner and with it all my fights...

      I finally decided to accepted that my interest in working and playing with computers and servers is worth to spend some money on. So I ditched my old box in the corner and with it all my fights with my ISP, their NAT, dynamic DNS and all that and got myself a VPS and 1 TB storage solution for less than I would have paid a static IP with my ISP.
      Best decicion ever :-)

      So I'm getting into Docker a bit, just because it's just so easy to get Nextcloud running. I used native Caddy as a reverse proxy, because if I got this "machine" there I will use it for other things as well, so make it right from the beginning. And I used native b.c I did not yet understand bridge/host mode and installing caddy native seems easier.
      Then I fought for one day with CIFS and the nextcloud gui to get the semantics right to get my storage solution accepted as external storage.
      Then I set up Jellyfin with Docker because why not. As well through caddy.
      Then I fucked something up and was like, fuck it, lets start again this time for real :-P
      I wiped my VPS clean (chose ubuntu again) set up and hardend ssh + sudo installed Docker, and then I found out about docker rootless and in the docker docs it's mentioned that it is/might be more secure, so I set up docker rootless and installed all the rest again.
      And then I was like, hmm, do these Docker Images/Containers update themself? Like snap did?
      It seems not, so I looked for a solution and found watchtower. And now I wasted another day trying to get watchtower to run, and I just can not.

      I tried so many variations of the run command now most recently I tried:

      docker run \
      --name watchtower \
      -v ${DOCKER_SOCKET_PATH}:/var/run/docker.sock \
      containrrr/watchtower
      
      time="2023-01-20T01:17:41Z" level=error msg="Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?"
      time="2023-01-20T01:17:41Z" level=info msg="Waiting for the notification goroutine to finish" notify=no
      

      /run/user/1000/docker.sock exists, I own it, i tried connecting to it through docker -e and containrrr/watchtower --host "unix:///run/user/1000/docker.sock"
      I dont now what to try more and I'm at my end with my ddg-fu as well.

      And now while proofreading this, I read everything again and decided to try something again and it just worked...

      docker run \
      --name watchtower \
      -v /run/user/1000/docker.sock:/var/run/docker.sock \
      containrrr/watchtower
      

      seems like the environment variable was not set. But I'm shure I tried that before and it did not work... ghost in a machine :-)

      So thats where I'm at. I have to say it was a lot of fun and doing and learning all that tingled my brain in a funny way :-)

      But now I have some questions for my much more experienced Tildes-friends:

      • Do I even need watchtower? because I'm not actually interested to connect to my server regularly to do the updates/maintenance.
      • Was switching to docker rootless even a good idea? it seemed so reading the docker installation docs, but just now I read the Archwiki and there it seems it has some heavy security implications, so I made the security situation acutally worse by thinking making it better.
      • How do I get this watchtower thing to fucking work? (only if I actually need it)

      I very much appreciate all further/other advise, tricks, recomendations, questions and discussion as well :-)

      4 votes
    2. Are there any android 13 apps that can successfully spoof location (or otherwise thwart stalkerware)

      (apologies if this isn't the correct place to ask, I'm just a bit out of ideas) (content warning for abusive parents) I have a friend who's abusive parents track her location using the stalkerware...

      (apologies if this isn't the correct place to ask, I'm just a bit out of ideas)
      (content warning for abusive parents)

      I have a friend who's abusive parents track her location using the stalkerware app life360.

      she currently runs graphene os (android 13) on a pixel 7 pro.

      in my past android experience there are plenty apps that can spoof your location via developer settings. however they all crash on android 13 (or at least on graphene..)

      see below (none of these work, and they also crash on my android 13 phone, but they have worked for me in the past on like android 9):
      https://github.com/mcastillof/FakeTraveler
      https://github.com/wesaphzt/privatelocation
      https://github.com/warren-bank/Android-Mock-Location
      https://play.google.com/store/apps/details?id=com.lexa.fakegps&gl=US

      if there are no functioning apps that will do this. do you know any other solutions? on other android roms or with root with magisk / xposed? obviously this is less secure than graphene os but the current problem is her parents more than anything else.

      we r also considering a secondary phone just for the stalkerware which can be opportunistically left in innocent places. or just killing the life360 app on occasion when needed. or just letting the phone die when it needs to. But not sure how obvious this might be to the abusers. any insight is appreciated.

      (suggestions like "leave her parents" are good but far easier said than done and while it will eventually happen its not feasible at the moment. That being said if you can provide detail suggestions are welcome)

      Thanks :)

      5 votes
    3. Has anyone with a WD NAS formatted drives for another system?

      This is a total longshot. I moved away from a WD My Cloud EX4100 w/ 3x WD Reds to a new box. I bought two more drives for the new one to make the move easier. After the move I took the drives out...

      This is a total longshot. I moved away from a WD My Cloud EX4100 w/ 3x WD Reds to a new box. I bought two more drives for the new one to make the move easier.

      After the move I took the drives out to format them only to find that each 4TB drive shows a partition of 1.8TB on any other system (diskpart with W10 LTSC, Disk Utility MacOS, and GParted with Ubuntu.) Inside the EX4100 the drives show their full capacity.. and I just don't get it.

      I reached out to their support, but I don't expect much of a response.

      Anybody have any idea why the heck this could be happening? This seems crazy. I don't mind buying more drives, but it seems like a waste when I've got 12TB just sitting there.

      7 votes
    4. Continuing My Education with a CS Degree in Canada [A Help Thread]

      My Goal I am applying to Canadian universities for fall admission as a CS major. This will be my second degree, and one of the requirements of getting admitted for a second degree is to show that...

      My Goal

      I am applying to Canadian universities for fall admission as a CS major. This will be my second degree, and one of the requirements of getting admitted for a second degree is to show that you have a significant interest in the subject. My plan is to get online certificates to show that I am actually dedicated to learning CS and getting a job in the field. I am actually dedicated, I just need a way to show it on paper. I have some experience with software development (only the basics), but there aren't any records of it since it was just informal study.

      My Problem

      I can't decide which certificates I should pursue. I am torn between EdX and Udemy. I would Tilderinos' help in choosing between the two. I would also appreciate any general advice you may have.

      Here are the courses I plan to take on EdX (prices in USD):

      UBC's MicroMasters Program in
      Software Development
      - $832

      Harvard CS50's Web Programming with Python and JavaScript - $199

      IBM's Professional Certificate in
      Cloud Application Development Foundations
      - $169

      Here are the courses I plan to take on Udemy:

      The Ultimate 2021 Fullstack Web Development Bootcamp - $15

      The Complete 2021 Web Development Bootcamp - $15

      The Ultimate MySQL Bootcamp: Go from SQL Beginner to Expert - $30

      Angular - The Complete Guide (2021 Edition) - $15

      Comparisons

      To reiterate, I have two goals going into this. One is to actually learn web development, since I would like to become a fullstack developer (but my options are semi-open). The other is to prove to the Canadian universities that I am dedicated to learning and to give myself an edge over applicants.

      If I go with EdX, then I have to pay a much steeper price for the certificates. These courses also take a long time to get through and the projects don't seem as relevant to real word applications. But I will also be learning from established institutions like Harvard and UBC. EdX certificates also come with the distinct advantage that a human is checking the problem sets you submit. This will show the Canadian universities that I have actually spent the time and effort to go through the courses and pass them.

      If I go with Udemy, I will get through the courses in less time and their projects seem more related to real world projects. If I go through the courses faster, I will also have more time to start on some personal projects, and I can show my dedication to learning through those projects. Personal projects and also volunteer work will also help establish a resumé for future work. The courses on Udemy are a lot cheaper too. But they don't have the same level of verification or prestige that EdX does.

      So in summary, EdX has prestige and quality courses, but a steep prices and a huge time commitment. Udemy is cheaper and gives me more opportunities to do personal projects and volunteer work, but it's certificates aren't fully trustworthy from the Canadian universities' perspective.

      Final Words

      What do you think? Which path should I take?

      For those of you wondering, why I am going to university instead of a bootcamp, it's because I plan to immigrate to Canada and becoming a student seems the straightest way of getting PR. I need to leave my third world country as soon as I can, for mental health and economic reasons. I have been mostly unemployed ever since the pandemic started so I can't get work in Canada (or the U.S.) on my first degree (a management degree). I already tried that route. I can't find proper work here either.

      Also, I am sorry if I posted in the wrong group, or if I shouldn't have posted it anywhere at all. I desperately need advice on what to do and I don't have a trustworthy network here that can help me through this. I'm sorry and thank you for your help.

      8 votes
    5. Why does a completely local, self-contained html file need to access gstatic.com?

      So, I'm a privacy advocate (or paranoiac, depending on your perspective). I run both uMatrix and NoScript plug-ins (among others) in my Firefox browser, so I can see when and where websites send...

      So, I'm a privacy advocate (or paranoiac, depending on your perspective). I run both uMatrix and NoScript plug-ins (among others) in my Firefox browser, so I can see when and where websites send calls out to other locations, and block the ones I want ... google analytics, google fonts, google-apis, google tag manager, and gstatic are all ubiquitous out there, probably 99% of websites use at least one of them (PS: Tildes is in the 1%; yeay, Deimos).

      And note ... there may well be nothing at all wrong with any of those sites/services ... but Google has a global all-encompassing Terms and Conditions policy that says, you use anything of Theirs, and They are allowed to harvest your personal data and make money off of it.

      And I do not accept those terms.

      Okay, that's the prologue. The deal is, I have a small piece of documentation, just basic "how to use this" info, for a WordPress plug-in. It is in .html format, with bundled bootstrap and jquery and a few other assets.

      Nothing, anywhere in the entire folder, references gstatic. And yet when I open this local, on-my-computer-only html file ... my browser tells me that it is trying to connect to gstatic.com.

      Anyone happen to know why/how that is happening?

      4 votes
    6. PC doesn't connect properly to thunderbolt dock if it's plugged in after booting

      I have a CalDigit TS3+ dock that I switch between my M1 Macbook Pro and a System76 Galago Pro that's currently running Windows 10 (I'm sorry, FOSS gods). The M1 has no problem using the TS3+ when...

      I have a CalDigit TS3+ dock that I switch between my M1 Macbook Pro and a System76 Galago Pro that's currently running Windows 10 (I'm sorry, FOSS gods). The M1 has no problem using the TS3+ when it's connected or disconnected and reconnected. But the Galago Pro will only connect to the dock if it was connected while booting up. Disconnecting and reconnecting leaves the dock in a state where only the pass-through thunderbolt port works. So my monitor that uses the pass-through for DisplayPort can operate after reconnecting the dock, but no other devices plugged into the dock will. My mouse/keyboard for example don't even receive power in this state.

      Oddly when setting up the drivers for thunderbolt I found that the only drivers available are for Intel's NUCs. IIRC someone on reddit said that this is actually the software I need to install, so that's what I did.

      Any help getting the dock to work better is appreciated! Currently I need to reboot the laptop every time I switch back from the M1 to the Galago Pro.

      4 votes
    7. If I'm using Cloudflare for my domains, do I need to bother with LE?

      It is late... and I am pretty much finished with migrating to a new VPS provider. I got rate limited with two domains, but I'm running everything through Cloudflare. Do I need to bother with...

      It is late... and I am pretty much finished with migrating to a new VPS provider. I got rate limited with two domains, but I'm running everything through Cloudflare. Do I need to bother with LetsEncrypt on the VPS itself? When I check the domains, the certs from CF are working nicely.

      This is my first time using CF.

      Quick edit while I pretend I can sleep.

      I’m thinking that CF will cover me for 443 and route all traffic there. I’ve got wildcards set for domains with services that require other ports — which is working. All CF is doing is caching my sites, right?

      7 votes
    8. Build Concept: The Mobius Chair

      In the DC canon, The Mobius Chair is a time-space/dimensional vehicle operated by the New God Metron. It allows him to travel and observe the universe, but the one I'm making is nowhere near as...

      In the DC canon, The Mobius Chair is a time-space/dimensional vehicle operated by the New God Metron. It allows him to travel and observe the universe, but the one I'm making is nowhere near as functional.

      I've come into a recliner chair with a cupholder on each armrest, and I already had a split keyboard. My plan is to use the cupholders as a mount for both ends of the split keyboard, so that I could use the entire run of armrest and have my hands lay naturally on the keys. Goals are to minimize weird stretching and be able to comfortably type for long stretches of time, to put off stuff building this that I planned to work on this weekend, and to look super boss, though not necessarily in that order.

      If I want ultimate angulation and the best range of motion, I was thinking about something like a cupholder with a phone or a tablet mount, like this one, but if anyone has recommendations for what would be best to work with, or have done something like this before, I'm all ears.

      6 votes
    9. LaTeX: Using a different font for glyphs used in commands like \sum

      Hello everyone. I consider myself fairly competent when it comes to my work with LaTeX, but as everyone who uses it knows, it is definetely strange sometimes. And right now I have a problem which...

      Hello everyone. I consider myself fairly competent when it comes to my work with LaTeX, but as everyone who uses it knows, it is definetely strange sometimes. And right now I have a problem which just irks me in the wrong ways:

      I use XeTeX and a number of custom fonts for my documents, but when writing mathematical formulas I found out that the font I set for Greek letters (Gentium Plus) is used for letter commands like \alpha, \Alpha, ... but not for commands like \sum, \prod. As you can see in this example here. You can see XeTeX defaults to Computer Modern.

      I've looked all over the net for solutions but I can't find one. I'm using mathspec, amsmath, amsfonts, amssymb as my font related packages and I set my fonts like this:

      \setmainfont{Charis SIL}
      \setsansfont{Helvetica Now Display}
      \setmonofont[Scale=MatchLowercase]{Fira Code Retina}
      \setmathfont(Digits,Latin){Charis SIL}
      \setmathfont(Greek){Gentium Plus}
      

      I feel like I'm going insane not solving this problem. Should you require it, my entire LaTeX template is here on Github. Please help, thank you.

      8 votes
    10. Help Packaging Elmer FEM for Nix

      I'm trying to package Elmer for use with NixOS, and could use some help from any experienced Nix users. My current attempt is located here. There is some junk left around in that file from my...

      I'm trying to package Elmer for use with NixOS, and could use some help from any experienced Nix users. My current attempt is located here. There is some junk left around in that file from my experimenting, but it's at least a start. There are also a few lines of error included in the comment here.

      Any help is appreciated!

      6 votes
    11. Help me get my head around DNSCrypt and DoH/DoT

      I want to adopt these technologies b/c I'm moving to a home w/o WiFi: I'll only use mobile networks in order to save some money. But the general pipeline and setup are hard to digest, and I'm not...

      I want to adopt these technologies b/c I'm moving to a home w/o WiFi: I'll only use mobile networks in order to save some money. But the general pipeline and setup are hard to digest, and I'm not sure if I really understand what are the implications for my privacy, except for the fact that DNS queries are encrypted so I don't leak domain names. This is especially important to me because Turkish internet law and the censorship mechanism is really intrusive, with DPI & DNS blocking. My current ISP does not fiddle with my HTTPS traffic, but I won't have that with my mobile network.

      I'm also considering a VPN, but major VPNs are blocked here. To what extent do the purposes of VPNs and these DNS solutions overlap? Assuming most of my important traffic is over HTTPS+DoH/T, how safe am I, and most importantly how much can I penetrate the censorship mechanisms?

      6 votes
    12. Need a simple way to password protect a webpage

      Hey Tildes! I've got a static, basic website, HTML and CSS. It's one page only. But I'd like to create a second page with some more private content that is password protected. I know that I can...

      Hey Tildes!

      I've got a static, basic website, HTML and CSS. It's one page only. But I'd like to create a second page with some more private content that is password protected.

      I know that I can accomplish this via .htaccess but what I don't like about this method is that when the user navigates to the page, they get a pop up asking for a username and password. What I would like is having the user navigate to the page, and then they are met with a simple form asking for just a password (no username). After they enter the password, the "veil" lifts or the page forwards and they get the private content.

      Here's the thing... the content really only needs to seem private. It's not super secret, personal information. I don't want it indexed by search engines (nofollow), and I want it basically hidden, but the password is only there to make the user feel exclusive. If some tech-minded person encountered this page and jumped through a bunch of hoops to get in without the password, it's not a big deal to me. In reality, 99.9% of people accessing this page will not be able to bypass the password.

      I'm guessing this can be accomplished easily in Javascript, but I don't really know much Javascript apart from finding code snippets and plunking them in. I also want to be able to fully design the password entry page so that it looks branded, so a code snippet plunked down into my HTML doc would be great for this.

      If there is an easy way to actually protect the content behind the password, that would be excellent. In this case, I imagine it would be much like a news site with an ad-blocker-blocker. Just some kind of pop-up that blocks all the content. Enter the password, and you're in.

      Anyhow, I hope I've described what I'm looking for accurately enough. Anybody have any easy and quick ways to accomplish this?

      14 votes
    13. How do you structure larger projects?

      I'll be writing a relatively large piece of scientific code for the first time, and before I begin I would at least like to outline how the project will be structured so that I don't run into...

      I'll be writing a relatively large piece of scientific code for the first time, and before I begin I would at least like to outline how the project will be structured so that I don't run into headaches later on. The problem is, I don't have much experience structuring large projects. Up until now most of the code I have written as been in the form of python scripts that I string together to form an ad-hoc pipeline for analysis, or else C++ programs that are relatively self contained. My current project is much larger in scope. It will consist of four main 'modules' (I'm not sure if this is the correct term, apologies if not) each of which consist of a handful of .cpp and .h files. The schematic I have in mind for how it should look is something like:

      src
       ├──Module1 (Initializer)
       │         ├ file1.cpp
       │         ├ file1.h
       │         │...
       │         └ Makefile
       ├───Module2 (solver)
       │          ├ file1.cpp
       │          ├ file1.h
       │          │...
       │          └ Makefile
       ├───Module3 (Distribute)
       │          ├ file1.cpp
       │          └Makefile 
       └ Makefile
      

      Basically, I build each self-contained 'module', and use the object files produced there to build my main program. Is there anything I should keep in mind here, or is this basically how such a project should be structured?

      I imagine the particularly structure will be dependent on my project, but I am more interested in general principles to keep in mind.

      14 votes
    14. State of WebRTC outside of major browsers

      I've been trying to set up a reliable lightweight solution for high quality, low-latency webcam (v4l2) streaming from Linux server to browsers, allowing for small (1-5) number of concurrent...

      I've been trying to set up a reliable lightweight solution for high quality, low-latency webcam (v4l2) streaming from Linux server to browsers, allowing for small (1-5) number of concurrent viewers.

      The obvious choice here is WebRTC, which when used through browser APIs, works wonderfully. It has low latency and automatic quality adjustment depending on network performance.
      I also checked out RTSP and RTMP, which are not supported without browser plugins. Next candidates were DASH and HLS, but while they provide high quality, they also have high latency.
      For a while I used MPEG1 streaming through Websockets (using jsmpeg library), which worked and had low latency, but the video quality was bad.

      Back to WebRTC - It seems like reliable, lightweight and maintained projects are really hard to find. So far I've found a few WebRTC media servers, but they're overkill for my use case:

      • Janus
      • MediaSoup
      • Kurento (unmaintained)

      I also tried implementing this functionality using low level Gstreamer elements in Python using PyGObject, but that's proving to be rather complicated with a ton of extremely low level implementation details.

      If anyone has tried doing something similar, I'd really like to hear what (if any) problems you had and if you found any sane solutions. Next thing on my list is using headless Chromium in combination with Puppeteer, but I'd really prefer more lightweight solutions.

      9 votes
    15. Help: I just received a mail from my own email, can't know if phishing or I'm hacked

      I just received a mail from my own e-mail address, hosted on Gandi on my own domain name. It said that the sender has hacked me, used malware, keyloggers and RDP to get my passwords and copy all...

      I just received a mail from my own e-mail address, hosted on Gandi on my own domain name. It said that the sender has hacked me, used malware, keyloggers and RDP to get my passwords and copy all my files to his own computer, and took videos of me while watching adult content using my webcam (I never noticed the light turning on for it). Claims they've been doing this for a few months. Gives a bitcoin address and wants $1000 (a sum I can't and won't give, don't even have a fraction of it) in 48 hrs, or else will share the videos with my contacts. It said something about a pixel the message included.

      I viewed the message from K-9 mail on android (which didn't tell anything about pixels or whatnot), and when I went back on my computer to check the headers and stuff, the message was deleted.

      Now, is this some sort of phishing or or have I really been pwned? I feel like it's just phishing, but the message deleting itself kinda gave me shills of fear. I promptly changed my password for the mail account.

      10 votes
    16. How to make money with Wordpress

      I have just graduated from uni, and am preparing for masters next fall. I'm a humanities student, but have some programming knowledge. Currently I'm looking for literary translation jobs, but...

      I have just graduated from uni, and am preparing for masters next fall. I'm a humanities student, but have some programming knowledge. Currently I'm looking for literary translation jobs, but should I fail that, I want to find some light freelance work (so that I can spare more time to my studies), and looking at e.g. freelancer.com, Wordpress is still quite popular.

      What are some good introductory material for Wordpress and PHP, that preferably does not assume total beginner to programming? How much can I expect to make, for how much effort? I'd be content if I could make $200-250 w/ 3-5hr work per day, or a couple full days a week, that's all I really need and such hours would mean that I could keep on doing such work even when I'm writing my thesis. I'm in Turkey, FWIW.

      7 votes
    17. Need help with Switching to linux

      Hi all, Hope ya'll doing good. I am done with windows. So I want to switch to linux. I have used it a few times. I just wanted to know, how long will it take to have it setup? Also, I am learning...

      Hi all, Hope ya'll doing good. I am done with windows. So I want to switch to linux. I have used it a few times. I just wanted to know, how long will it take to have it setup? Also, I am learning data science. Will switching to linux have any serious implications? Thanks

      29 votes
    18. How Do I Make A Database?

      Hello everyone! I've recently got an idea for a Database as a Service I'd like to create. The only issue is - I don't know how to create or host a database! I've only ever used Mongoose/mLab with...

      Hello everyone!

      I've recently got an idea for a Database as a Service I'd like to create. The only issue is - I don't know how to create or host a database!

      I've only ever used Mongoose/mLab with Javascript, and a minimal amount of Postgres with Python.

      If I'm looking to create a database that will, eventually, be able to store images, songs, and videos, where should I start my homework?

      I can create the backend and the frontend with no issue - just stuck on this part here. If it's of any relevance, I most frequently use the MERN stack.

      13 votes
    19. How important is response time in monitors and how distinguishable is it?

      I'm currently looking for a new monitor and I have the ASUS MG279Q, the ASUS PG248Q and the ASUS MG278Q. Now, my setup is not the highest end, but decent with an i7 and a 1060 3GB, and there are...

      I'm currently looking for a new monitor and I have the ASUS MG279Q, the ASUS PG248Q and the ASUS MG278Q. Now, my setup is not the highest end, but decent with an i7 and a 1060 3GB, and there are three concerns I have currently not found an answer for:

      1. The (potential) difference in quality between the MG279Q's IPS panel and the MG278's TN panel
      2. And the delay difference, the TN panel having a 1ms response time and the IPS' 4ms
      3. If my setup can even handle 1440p/144Hz (I don't need to play on the highest settings, nor do I need to reach those 144 FPS), in which case I would tend more towards the PG248Q

      I'd love to upgrade towards 1440p as the screen real estate would be good for working (which I do a lot on the PC) and I would, I could later upgrade my GPU if the performance in games isn't satisfactory. I think my setup wouldn't have any issue handling day to day tasks and if need be I can play on lower resolutions or lower graphic settings. Also I wonder how large the difference between the IPS and TN panel is and if it's noticeable, particularly with colours.

      Does anyone of you have experience with the subject or with the monitors named in particular?

      20 votes
    20. Getting Started as a Developer from Scratch

      I have been interested in making the gradual career change to software development from my current humanities field. This stems from a handful of different places. Of course the pay and...

      I have been interested in making the gradual career change to software development from my current humanities field. This stems from a handful of different places. Of course the pay and flexibility are strong drivers but I like the idea of a field that is somewhat of a creative expression; one where you can manifest your knowledge and experience into something tangible.

      I have no experience with programming other than SQL use in ArcGIS and am hoping to gain some knowledge about the field; so anything would be helpful. Whether what to expect from this line of work, where someone with no experience should look to get started and what to expect, personal journeys, etc.

      Cheers!

      14 votes
    21. Batch-saving websites for offline viewing

      Anybody here have a good setup for batch-downloading articles/news from several sites you specify, similar to youtube-dl but for general websites? I'm sure it could be scripted with not too much...

      Anybody here have a good setup for batch-downloading articles/news from several sites you specify, similar to youtube-dl but for general websites? I'm sure it could be scripted with not too much effort but I'm interested what polished solutions there are.

      The idea would be so people with rare internet access could go to a hotspot weekly or something and sync that week's worth of content.

      12 votes
    22. Advice for those who want a computer science career?

      Those that have pursued a career that deals with any type of computer science, what advice would you give to students before they get a job in it? What do you do on a daily basis? What would you...

      Those that have pursued a career that deals with any type of computer science, what advice would you give to students before they get a job in it? What do you do on a daily basis? What would you have wanted to know before you started?

      17 votes
    23. Need recommendation for codecademy-like course for PHP

      Hi there, It looks like codecademy took down their PHP course, which stinks becuase I love, love, love how that site approaches teaching by doing. Any other free resources out there for a...

      Hi there,

      It looks like codecademy took down their PHP course, which stinks becuase I love, love, love how that site approaches teaching by doing. Any other free resources out there for a do-not-show approach for learning PHP?

      Looking to get my feet wet so I'm a little less dangerous when tinkering with my WordPress templates.

      14 votes
    24. Total noob looking for (hopefully) simple greasemonkey script

      I have knowledge of the basic concepts of programming in general and html and some very basic knowledge of javascript, but this specific task is proving a little beyond me. I'm actually using...

      I have knowledge of the basic concepts of programming in general and html and some very basic knowledge of javascript, but this specific task is proving a little beyond me. I'm actually using tampermonkey, in case that matters.

      www.bricklink.com is a site to buy Lego from private sellers. By default, when looking at a shop's listing of items, it shows 25 per page. I would like to automatically switch to 100 per page every time.

      Here's a randomly selected store page (no affiliation) at the default 25 per page:

      https://store.bricklink.com/TheBricky#/shop?o={"itemType":"P","catID":"18","showHomeItems":0}

      Now, same page set to display 100 per page. Note how "pgSize" is added to the url but doesn't appear by default:

      https://store.bricklink.com/TheBricky#/shop?o={"pgSize":100,"itemType":"P","catID":"18","showHomeItems":0}

      What I would like is for pgSize to be set to 100 only IF

      "shop" appears in the url

      AND

      "pgSize" does not appear in the url OR "pgSize" does appear in the url but does not equal 100.

      Since Bricklink remembers pgSize per shop page per session, once pgSize is set to 100 for a particular shop greasemonkey doesn't need to do anything. Intercepting the url before the page loads would be nice but unnecessary since loading is fast and I'm not worried about bandwidth.

      I tried making this but wasn't sure how to input what I'm trying to test for in the url. Of course now that I've thought about it some more it seems the task is more probably difficult than I thought it would be at first. Any help would be appreciated.

      EDIT: This comment below seems to be working, although the way Bricklink makes their urls feels funky at times.

      10 votes
    25. Coding Noob Needs Help/Guidance on Small Project

      Hi, There's a certain site which hosts media files and has a player that depends on a lot of third-party resources to play, while browsers have native support for those file types. Those 3rd-party...

      Hi,

      There's a certain site which hosts media files and has a player that depends on a lot of third-party resources to play, while browsers have native support for those file types. Those 3rd-party resources are often blocked by ad blockers and I have no desire to white-list them. I would like to extract the direct link to the media file and make it playable on my custom web page.

      The link to the media file is present in the page source of each page, always on the same line. It's not anchored in HTML but present in the JavaScript for the player, like so:

          $(document).ready(function(){
            $("#jquery_jplayer_1").jPlayer({
              ready: function () {
                $(this).jPlayer("setMedia", {
                  [ext]: "https://[domain]/[filename.ext]"
                });
              },
      

      In this example it's on line #5. [ext] = the file extension.

      I want to build the following:

      • A web page with a form with a single input field meant to receive links from that specific file host
      • [Something] that extracts the file link from the source of the host's page
      • Present the linked file as playable in an embedded native player

      So far I've managed to create a form with an input box and a submit button, but it doesn't do anything yet. What is the best way to build the actual functionality? I know HTML/CSS. I have some rudimentary understanding of JavaScript/jQuery and Python3, so those would be my preferred tools.

      For those worried about piracy: The files in question are not copyrighted and I'm not looking to make copies. I just want to make them playable. This is for personal use.

      Thank you for reading this far. Any and all advice is welcome!

      10 votes
    26. Website Admin Question: How to Block Google?

      I have a personal website, and while I don't mind it showing up in SERPs for DuckDuckGo, Bing, etc. I do not want it showing up on Google at all. Google doesn't send traffic my way, I pay for my...

      I have a personal website, and while I don't mind it showing up in SERPs for DuckDuckGo, Bing, etc. I do not want it showing up on Google at all.

      Google doesn't send traffic my way, I pay for my site out of my salary from my day job instead of running ads, and preventing Google from indexing my site seems like the best form of nonviolent direct action I can take to protest their continuing dominance and their "embrace, extend, and extinguish" campaign against the Web.

      I figure the easiest way to do this is to add the following to my site's .htaccess file since I don't have access to the server config file:

      X-Robots-Tag: googlebot: none, noarchive, nosnippet, notranslate, noimageindex
      

      Are there any downsides that I should know about besides not showing up in Google results?

      11 votes
    27. Inexperienced Programming Question

      TLDR: What programming language would be useful for taking info in an excel file and producing a text file (that is organized and arranged in a particular way) containing that info? Which would be...

      TLDR: What programming language would be useful for taking info in an excel file and producing a text file (that is organized and arranged in a particular way) containing that info? Which would be useful for this problem but also helpful in general? And also, are there any recommended online courses where I could learn it?


      I have no real experience coding or anything but have always wanted to learn. Recently at work we've encountered a problem. My boss had created a matlab program in order to take text/numbers from an excel document and transfer them to a text file, but in an organized way.

      Say you have something you call "Pancakes" and the cell next to it has the number "3", as in there are three pancakes. I want to be able to create a text file that would read something like this:

      NUMBER OF PANCAKES

      • Pancakes: 3

      We recently have changed around the format of the excel document for a different item, for example "French Toast". I've tried to mess with matlab briefly but was unable to change the program to compensate, and I no longer easily have access to matlab.

      I'm seeing this as an opportunity to learn some programming and also fix some stuff at work. So what programming language would be useful for fixing this problem? Which would be useful for this problem, but also helpful in general? And also, are there any recommended online courses where I could learn it?

      Thanks for any help, I appreciate it.

      16 votes
    28. Learning to Program

      Hi folks, I figured this would be a good place to ask a rather simple question. Where do I start to learn to code? I'm in high school, so I have (some) time to dedicate to it, and it seems there...

      Hi folks,

      I figured this would be a good place to ask a rather simple question.

      Where do I start to learn to code?

      I'm in high school, so I have (some) time to dedicate to it, and it seems there are a plethora of websites/resources out there, so I ask: what do you recommend, and why has it worked for you? I have no prior experience. I believe that this would really help out in the long run, as I will graduate high school with an Associate's Degree in Business. Thank you!

      EDIT: Thank you for all your responses! I'll start with Python and move on from there. You guys have been a great help, and I'll vote you up or reply.

      26 votes
    29. Good open source projects for beginners to contribute to?

      I'm looking for a project to contribute too. I'm not that experienced with programming, so I want something that isn't too complex. I'm also looking for a fairly young project. Big, mature...

      I'm looking for a project to contribute too. I'm not that experienced with programming, so I want something that isn't too complex. I'm also looking for a fairly young project. Big, mature projects don't really have much that a newbie can work on.

      27 votes
    30. Learning to pentest

      Hi, I need your help to learn pentesting. I'm programming for several years. I'm really good in C# and can write moderately complex apps in Dart, Python and JavaScript. I'm in highschool and work...

      Hi, I need your help to learn pentesting.

      I'm programming for several years. I'm really good in C# and can write moderately complex apps in Dart, Python and JavaScript. I'm in highschool and work for software development company as backend developer. But general programming starts to feel so boring...

      I've started to watch LiveOverflow on youtube (no link, there is no wifi here and I don't want youtube to drain my data) and it was so interesting - so I tried it. I've tried few CTFs, read many writeups, and now I've discovered CTF hack the box.

      When I know what to do, I have no problem googling and researching and later applying my knowledge. But I often discover, that I just don't know what I don't know.

      There is one CTF challenge that I haven't completed yet. It's 20 line html page, no javascript, nothing suspicous. No cookies. It has just form with password input, which sends post request to server. Here's the problem - how do I get the flag (the password)? I can bruteforce it, but it clearly isn't the correct way. I know that the php runs on apache, debian. I've tried getting some files, I've tried going up (../), sql injection, nothing works.

      And here's the general problem - what am I missing? What to learn? What should I google? I don't want ideas what I'm missing on this one example - Instead I need some sources where I learn generally about vulnerabilities I can exploit. Some blog, some website, something like this.

      Could someone here recommend me some sources where I learn about this? How did you start and what things do you generally check when you face something you have to break into?

      Thank you

      16 votes
    31. How do you go from "knowing" a programming language to actually making useful software?

      I'm in a bit of a rutt with my journey to learn how to write software, and I really have no idea where to go from here. I've taken a bunch of software engineering courses on edx.org, and I've done...

      I'm in a bit of a rutt with my journey to learn how to write software, and I really have no idea where to go from here. I've taken a bunch of software engineering courses on edx.org, and I've done a few personal projects with what I've learned, but I still don't know enough to be able to contribute to open source projects or make anything useful.

      TL;DR
      How can I learn to actually make things?

      28 votes
    32. Need help dispelling myths about how hackers access websites

      I hope I’m posting this in the correct place. I’ve been having a disagreement with someone over the abilities of hackers. I kinda hope Deimorz pops in because he wrote automod. I said that the...

      I hope I’m posting this in the correct place. I’ve been having a disagreement with someone over the abilities of hackers. I kinda hope Deimorz pops in because he wrote automod.

      I said that the only way for someone to gain access to a subreddit to make changes is if they steal a moderator’s account password or they are added to the mod team. The person I’m having a disagreement with believes that adding text to the wiki for users to view (like the extensive wiki r/skincareaddiction has) would make it easier for hackers to insert malicious code in order to gain access to the sub. This person also mentioned being able to change the subreddit through browser tools. She insists the sidebar and wiki are potential access points for scripting attacks. Automod just so happens to be enabled which is why I mentioned Deimorz.

      I’m not an IT professional. My brothers currently are which helped me learn most of what I know. I’ve supplemented that over the years with whatever info I came across online. What she’s saying sounds like crazy town to me. But since I’m not a hacker, is there a way to use the sidebar or wiki area to hack into a subreddit?

      Thanks in advance to anyone who pities me by providing a detailed answer to this thinly veiled request to help me win an internet argument 🙇🏾‍♀️.

      10 votes
    33. File sharing over a network

      Me and my friend arrive at an arbitrary place, we have access to a network from there. Now, we want to share a file and the network connection is all we have. The challenge: make the file go from...

      Me and my friend arrive at an arbitrary place, we have access to a network from there. Now, we want to share a file and the network connection is all we have. The challenge: make the file go from my device to my friends device in a pure p2p setting. If you know, for sure, that incoming connections are allowed this is very simple but here i want to explore which solutions exist that do not assume this.

      Assumptions:

      • Same network altough possibly different access points (one might be wired and the other wireless)
      • We have no prior knowledge about the network, incoming traffic might be blocked (outgoing isn't for sure)
      • No extra machines can aid in the transaction (no hole punching etc)
      • Should work reliably for any kind of device that you have free -- as in freedom -- control over. that is PCs, android phones/tablets and macs. most of Apple's other hardware can be excluded because they don't allow for anything anyway.
      • hard mode: We are both digitally illiterate

      Goal:

      • Send a file, p2p, from one party to another.

      Me (MSc cs) and my friend (PhD cs) tried to do this last week. And it appears to be among the hardest problems in CS. I would like to discuss this and hear which solutions you might have for this problem.

      Edits:

      1. this is not an assignment
      2. Added some specifics to the assumption set
      3. we're looking for practical solutions here.
      4. more specs
      10 votes
    34. Have any of you set up GPU passthrough for a virtual machine?

      Right now I dual boot windows 10 and fedora, windows for gaming, fedora for everything else. I'm considering running linux as my only native operating system, and running windows in a virtual...

      Right now I dual boot windows 10 and fedora, windows for gaming, fedora for everything else. I'm considering running linux as my only native operating system, and running windows in a virtual machine for gaming. This will be more convenient than restarting my pc every time I want to play a game, and I'll feel better about having windows sandboxed in a VM than running natively on my computer.

      To get gaming performance out of a virtual machine, I'm planning to have two gpus. One for linux to use, and one reserved exclusively for the virtual machine.

      Have any of you set up a computer like this before? What was your experience like? How was the performance?

      16 votes
    35. Full blown SSH servers within Docker containers?

      Trying to get a sense on how the networking would go down? If I had one public IP address and say 4 Docker containers on the host, how would the SSH connections work? Would I have to reserve ports...

      Trying to get a sense on how the networking would go down?

      If I had one public IP address and say 4 Docker containers on the host, how would the SSH connections work? Would I have to reserve ports for each container?

      7 votes
    36. What's in a git repo?

      Okay, I know the obvious answer is the history of the files. But how can I, from the command line, really understand what is hiding inside that .git directory? Today I was doing one of my periodic...

      Okay, I know the obvious answer is the history of the files. But how can I, from the command line, really understand what is hiding inside that .git directory?

      Today I was doing one of my periodic disk space audits, trying to figure out where my usage goes. This comes from having a 64GB drive mounted as /home on my Linux laptop. I found some 15G of old video files to delete today, so I'm no longer as pressed for space. But my interest was piqued by one thing I have downloaded from Github that is ~120 megs for a very simple program. Poking around further I find that most of that usage is a single file:

      $ ls -lh withExEditorHost/.git/objects/pack/pack-df07816cd15fb091439112029c28ebc366501652.pack
      -r--r--r-- 1 elijah elijah 102M Mar 14 23:28 withExEditorHost/.git/objects/pack/pack-df07816cd15fb091439112029c28ebc366501652.pack
      $ file withExEditorHost/.git/objects/pack/pack-df07816cd15fb091439112029c28ebc366501652.pack
      withExEditorHost/.git/objects/pack/pack-df07816cd15fb091439112029c28ebc366501652.pack: Git pack, version 2, 299 objects
      $
      

      Is there a unzip or tar xzf equivalent for Git pack files? Naive usage of git unpack-file is only generating errors for me.

      17 votes
    37. Angular with PureScript

      I have to do an assignment for university soon-ish, and it requires Angular. I'm not very fond of that framework specifically, but I would be interested in making it more interesting as a learning...

      I have to do an assignment for university soon-ish, and it requires Angular. I'm not very fond of that framework specifically, but I would be interested in making it more interesting as a learning project. I've also recently discovered PureScript, which I have no experience with right now.

      Searching online, I've purescript-angular, which hasn't been updated in years. I also couldn't find much else. Of course, I may be missing something simple (for instance, it's actually supported by default in Angular these days), so I wanted to ask if any of you know if this is possible, and if so, how?

      6 votes
    38. Components involved for flashing a custom Android ROM. Am I understanding things correctly?

      I'm going to be flashing a custom ROM on my Nexus 5X device, and I was just curious if I'm understanding all the components involved. I currently have CopperheadOS on my device, but that ROM may...

      I'm going to be flashing a custom ROM on my Nexus 5X device, and I was just curious if I'm understanding all the components involved. I currently have CopperheadOS on my device, but that ROM may be dead based on current events. I'm not switching because of this news, but mainly because I just want to try something else for the hell of it. I think I'm going to make the switch to Lineage, but there are way more options involved versus flashing CopperheadOS.

      It seems the main components to consider when flashing are the following:

      • The ROM itself (CopperheadOS, Lineage, PureNexus, etc.)
      • The custom recovery (TWRP, etc.)
      • The kernel (ElementalX, Franco, etc.)
      • root (magisk, etc.)
      • Play Services (OpenGApps, etc.)

      CopperheadOS was kind of it's own package, so I didn't have to consider all of these other options.

      My understanding is the minimum decisions I need to make if I want a custom ROM, is picking the ROM itself, and a custom recovery. In my case I'm going for LineageOS and TWRP.

      Choosing a custom kernel seems to be optional. I think I might go with Franco on this one based on the little research I've done. But to flash a custom kernel, I think I need root, right? So now I'll need to get root access which requires another tool. I was going to go with Magisk based on not much. Just seems to be common. So that's 4 main things there. The ROM (LineageOS), the recovery (TWRP), the kernel (Franco), and root (Magisk). I personally don't want any Google services on my device, so I'm fine with skipping that part. I currently don't have any installed, and I'm doing fine without them.

      So does my view on this seem correct? Are all the things I mentioned necessary for what I want to do? If I want LineageOS then I need a custom recovery right? If I want a custom kernel, then I need root which requires a separate tool, right? Just making sure I'm not doing more than I need to if I decided to go through with this. As a side convo, please recommend whatever ROMs, kernels, or root tools that you want. I have a Nexus 5X, and I'm hoping it doesn't bootloop after I'm done doing all this flashing =)

      9 votes
    39. Are there any good dark browsers for IPhone 4?

      I've just used Tildes on my phone for the first time and FUCK! MY EYES! I know I can't change the color of Safari, so I looked in the app store but couldn't find anything. Can you reccomend me a...

      I've just used Tildes on my phone for the first time and FUCK! MY EYES! I know I can't change the color of Safari, so I looked in the app store but couldn't find anything. Can you reccomend me a good browser with a dark theme?

      5 votes