I could use some clarity, as I feel like most of what I'm reading regarding home security is either FUD or marketing. I don't trust most of the comments I read online, as almost everything about this seems predicated on creating fear in me so that I'll pay up.

Simplisafe and Frontpoint are supposedly easy (and Simplisafe is quite cheap), but reviews online are mixed, and many people seem to think a self-installed wireless system is garbage no matter who it's from or who's doing the monitoring. Is this true, or is this just stratrgic doubt trying to drive me to a different or more expensive solution? I don't know!

Also, ADT sent me an ad that was a straight up lie. The person on the phone had to guess at how they might be able to stack discounts to even get close to the price I was looking at on their flyer, and the best she could offer was ~50% higher than what was shown, with their higher tiers costing well over double the price in the ad. I politely terminated the call.

My home security needs are simple. All I need is basic protection, and, honestly, I'm less concerned about a break-in than I am a fire. That's what I'd want to make sure I have solid monitoring for. My stuff can be replaced, but my home itself and my dog cannot.

Can anyone help me cut through all of the crap out there and just give me accurate information? What's my best bet?

I usually don't mind my tags getting erased and someone putting a more appropriate tag, but I want to know what is wrong with people.doing.something, or someone doing something, or someone.doing.something. I tried various ways today, and each one got removed, and I would like to know why.

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?

I'm really curious if they have, because on this thread, there's a bunch of comments from "unknown user." If whispers have been implemented, how do I use them? I can't seem to find any information about them.

Occasionally, I lose control of my account on StackExchange. I don't visit for a few months, I get logged out by some process during that time, and, when I try to log in, it tells me my password is incorrect.

When I go through the "forgot password" process, get the recovery email, and reset my password... I then get told I'm about to create a new account on StackExchange. I actually did that once, many years ago, and trying to figure out how to combine the accounts was messy.

It's happened again.

How do I reset my password without creating a new account? StackExchange has always been a little bit like High Dark Magic to me. Its account structure seems more confusing than necessary.

I am considering starting a wiki project for an academic niche. I've already started prototyping using Gitit, I've written a bit easy pages to get a feel for the software and am planning to start working on the most important page that summarises the topic itself, which I believe will help guide me to which pages to create first.

Now, here I'm asking for general advice to a newcomer n00bie wiki admin like me: what to expect, what software, etc. Any advice welcome, but I'll list a few questions below:

• What wiki software? I am liking Gitit, it is nice and easy to set up, and comes with its own server which I run with a systemctl user unit in the background. I tried Oddmuse but couldn't get it to work with a simple server; Ikiwiki setup is too clumsy for my liking (it friggin put stuff on my $HOME by default!); I want to avoid PHP stuff in general; I want a simple wiki that serves simple HTML pages.

• How to defend against spam? My plan is to keep it invite-only for as long as I can. IDK how to do that with Gitit yet.

• How to serve it securely and for cheap, once I decide to publish? It probably won't ever grow beyond a few dozens of megabytes in file size.

• How do you go about promoting a wiki?

• What peripheral services (issue tracker, mailing list, IRC/Discord/etc channels) go well with a wiki?

• What tools are available to ensure content quality (no plagiarism, enforce conventions, monitor changes, ...)?

I'm putting together a panel for Tech Worker's Coalition for SXSW 2020 and the focus of my panel is on tech contracting.

Specifically we're looking to speak on the issues of labor rights and how they are effected by contracting.

Anybody interested or have experience with the subject?

In case I forget to check Tildes (I joined and then I always forget to check it) my email is aslan@jackalope.tech

We've also got a couple of other panels brewing on the subject of unionization in tech and another on the recent controversies between tech workers and their companies over social issues (such as google walkout over sexual harassment, wayfair's walkout over selling beds to ICE etc)

I apologize if this is the wrong topic for this post, and if this feature already exists, I apologize for that too. I looked around and couldn't find it (it's possible I could have missed it). But I thought a dark mode for Tildes would be most excellent. Right now, there's a lot of white space and combined with my 24" monitor, this site lights up my whole room like it's in the middle of the day. Anyways, thanks for reading. :)

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?

I was watching this video and at the linked time I was wondering if there was any technique being used because it looks almost random but sounds quite good. The only thing I could see is he was using only the white keys.

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.

I was thinking about posting this to ~news, but suddenly I've realised that I don't know if the word “fuck”, or any of the Seven Dirty Words, are allowed in titles. Is Tildes adults-only? Should people write something like “f***” in titles instead?

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.

Hi everyone.

I'm in a more or less of a dilemma here.
For the ones that don't know, SCHUFA is monopolistic credit agency in Germany.

The good news is that my wife is pregnant and now we need to move to a new apartment with one extra room. Luckly, a friend of us is also moving and we simply got in contact with his landlord. We sent the information about our salaries and answered a few general questions and all is well for him. But, the landlord also wants our SCHUFA score.

We weren't worried at all because we don't have any credit cards or any loans and we are very frugal with our money. We really only spend money for our basic necessities and doing our holidays. We don't have any debts; we pay everything in a timely manner.

Then, my SCHUFA-BonitätAuskunft arrived. I look at the first page, which is in this diploma-like format and it says: "We had only positive contractual information at our disposal." (Es liegen uns zum XX.XX.XXXX ausschliesslich positive vertragsinformationen vor.)

"Great!", I thought. Then, I turned to the next pages and I see "Explanatory informations for your certificate" and there it says that I'm a high risk person. Basically, my result is 335, right in the middle (scale from 100 to 600).

We have a high netto salary and it seems this doesn't count for anything. My guess is that they don't have almost no history about me (I'm only living in Germany for 4 years) and since we are not big spenders, basically we are high risk because they don't have data to infer the risk. A few months ago I opened a new bank account on Commerzbank and I guess my SCHUFA score was good enough to open a new bank account, so I don't understand.

How is it possible that in my certificate diploma-like paper says that they have only have positive information about me and then on the explanatory pages say that I'm a high risk person in basically every sector (Banken, Telekommunikation, etc)?

Now we also asked the SCHUFA score only for my wife and let's hope for the best.

So:

• I keep all my passwords in my password manager (Bitwarden)
• All my 2FA codes are generated by AndOTP on my phone.
• My 2FA backup codes are also in Bitwarden, which I think is a bad idea, because that defeats the purpose of 2FA. So where should I put those?
• I have my Bitwarden 2FA backup code in my wallet and in a safe at my house. Is that a good idea for the other backup codes?
• Is there anything I'm forgetting here?

Good news: I'll be starting my new work in Cape Town, South Africa soon.

Not so good news: I have depression, and is currently on the antidepressant Sertraline.

My question would be the following:

How are prescriptions of the antidepressant handled in the South African health care system? Can I obtain, from either a GP or a Specialist, a sort of "long-standing" prescription, valid for (say) a few months, that will allow me to refill at pharmacies or dispensing GPs, without me having to be referred to a Specialist each time I need a refill? I understand that recurring examinations by a Specialist are likely necessary, but I don't expect those to be frequent, as my condition is fairly stable now.

Also a related question: I'm otherwise young and physically healthy, not affected by chronic conditions except depression. However, it seems that any health insurance schemes there that cover my condition would be rather expensive. Those policies typically include a broad coverage of chronic conditions, most of which I don't foresee a need. For one like myself, what suggestion would you give in terms of health insurance selection?

Many many thanks <3

What is our policy about posting original contents (e.g. me submitting a blog post I wrote, which I just did a few minutes ago)?

IMO, if it is a personal blog, it should be okay, and not really different from submitting a text topic here. Especially if the blog is not tracking you.

I feel like it's impossible to remember passwords that are long, random, and unique for every service. I have too many accounts.

On the other hand, I don't like the idea of giving up control of my passwords to a password manager and using the ones it generates and stores. It feels weird that I wouldn't "know" my passwords.

Is this a hangup I should just get past? What do I do if I need to login somewhere but cannot access my password manager?

I'm using Safari 12.0.2 on macOS 10.14.2 (Mojave). The same issue also occurs on iOS 12.1.2 (using Safari).

When using 1Password to autofill with the browser extension on macOS or the "autofill" feature on iOS an error message pops up: username: String does not match expected pattern.

I have to either use the browser supplied autofill on macOS or manually copy/paste username and password into the corresponding fields. On iOS there's an autofill API which I have set to use 1Password in the browser, also causing the error

Edit: Video of the issue

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.

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.

I have a Fitbit blaze. It doesn't have a proper api, you can only get the data it generates. However it does have push notifications and a music controller.

My idea was to set up a playlist of empty music files to act as menu options. E.g. track one would be named "turn phone off" and so on. This works as fine as a single menu option but when using multiple option, VLC just plays through the entire playlist.

Is there a music player that selects one track on a playlist and then stops? Or can I set this in VLC?

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

I plan on dual-booting Linux soon, and I am wondering on how to handle partitions. I have 3 drives in my computer: an SSD that Windows 10 boots from, a second SSD with one partition and some unallocated space intended for Linux, and an HDD.

When I install Linux on that SSD, how can I prevent Windows from messing with the Linux partition and vice-versa? Can Linux and Windows both read and write to the HDD partitions without complaining about the other modifying them?

I'm interested in possibly developing a tildes client. In order to experiment with the currently disabled API, as well as to become more familiar with how Tildes works internally, I've been trying to set up a Tildes development environment on my machine following the instructions on the docs site. I've run into a problem with the 'vagrant up' stage of the setup.

...  
==> default: Running provisioner: salt...  
Copying salt minion config to vm.  
Checking if salt-minion is installed  
salt-minion was not found.  
Checking if salt-call is installed  
salt-call was not found.  
Using Bootstrap Options:  -F -c /tmp  
Bootstrapping Salt... (this may take a while)  
bash: /tmp/bootstrap_salt.sh: /usr/bin/sh: bad interpreter: No such file or directory  
The following SSH command responded with a non-zero exit status.  
Vagrant assumes that this means the command failed!  
  
/tmp/bootstrap_salt.sh  -F -c /tmp  
  
Stdout from the command:  
  
  
  
Stderr from the command:  
  
bash: /tmp/bootstrap_salt.sh: /usr/bin/sh: bad interpreter: No such file or directory  

So the Salt provisioning is failing, and it seems like it just has the wrong path to the shell it needs, but while I could probably just tweak this script, it seems like that goes against the concept of using Vagrant in the first place. I was wondering if anyone else ran into this problem, or if the bug lies between the seat and the keyboard.

I was wondering where one can find (and submit) how long it takes to finish a game.

After a quick online search I did find one or two pages where petiole post this, but none looked really good. So I'm wondering if more regular gamers here have a recommendation.

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.

I'd really like to have a DNA test done to know my family history beyond 2 generations (adopted relatives)

I've heard numerous times that 23andme will abuse the information they obtain and either target you with ads or sell your DNA to marketing agencies, are there any non invasive DNA tests available online or elsewhere?

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?

For about a year I have been trying to work out how to make music. I want to make stuff like the OP-1 videos on Red means recording. I have a midi keyboard and LMMS on my desktop but I just can't work out how to do anything.

Does anyone have any tips or resources? Everything I have found has been so specific to a certain tool that I can't use it or so theoretical I don't understand what to do with it.

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!

This is a sort of continuation of a previous topic I posted. This weekend I will be wiping and reinstalling my computer and encrypting all of my drives in the process. In doing so, I will have to choose secure passphrases. As such, I have some questions about how best to do this:

1. I have three drives that will be encrypted. Is it okay to have the same passphrase for all of them, or should I have different ones for each?

2. In looking up info on this topic, I came across this article which recommends something called a Diceware wordlist. The premise is that you roll dice which match to a list of 7000+ words. You then string six or more of these words together which become your passphrase. Is this a sound way to generate one?

3. Rather than using the Diceware wordlist, couldn't I roll my own password of the same type using six "random" words of my choosing? I feel like that would be easier to remember, but am I weakening security in doing so?

4. If the Diceware method is to be trusted, does that mean I do not need to pepper my passphrase with digits, mixed case, and special characters? Or should I add these anyway?

5. I'm also considering changing over passwords on a lot of my online accounts based on this method. I like the idea of using a single passphrase as a root, but how do you modify it so that it is different for each account? Would I do something like [dicewarewords]tildes, [dicewarewords]spotify, [dicewarewords]ubuntuforums, etc.? I feel like it would be too on-the-nose, and it would make it easy to guess my other passwords if one were compromised. On the other hand, I don't like the idea of using a password manager to generate a random string for me. I'd like to still be able to login even without my password manager.

6. For people that have used something like this, how do you then deal with password restrictions on sites? I know that no matter how great I set things up I'm still going to have to make exceptions for sites that that either require or forbid numbers, mixed case, or special characters, have character limits, or make me change my password frequently.

Recently I have noticed something odd about my genitals, and believe I might be intersex of some sort (assigned male if it matters). The problem is that I don't know where to start researching and taking steps about it, so any help would be appreciated, especially if it is not US centric.

I was reading over tildes' privacy policy and saw that passwords are stored hashed, but are they salted as well?

https://defaultnamehere.tumblr.com/post/163734466355/operation-luigi-how-i-hacked-my-friend-without#fnref:salted

not that tildes is big enough atm to have big public database breaches, but in the future it's a good idea to store passwords with a secure salting system, especially to help users that might have common passwords like "Diane" in the Tumblr post.

Hi there,

I was curious if there exists a version of the Old and/or New Testament that provides historical context for the language and events. I'm thinking something like the New Oxford Annotated Bible. However, the kicker is I want to listen to it as an audiobook. I'm not 100% sure what that experience would be like given that I believe most of the annotation occurs as footnotes, but I'm sure it could be done.

I've been meaning to read the good book but never got around to it. I think it's a lot more likely to happen if it's an audiobook as that's how I consume most books at the moment.

Does anyone know of something like that?

I have posted a few topics on tildes so far, and someone edited the tags on it. I looked at that person's profile but couldn't see any indication that they were a mod. I am aware of the coming 'trysf' system, but I think it hasn't been implemented yet. My question: how does one edit tags? Is this a certain account age required?

Over the past year I have done a lot to shore up my digital privacy and security. One of the last tasks I have to tackle is locking down the many personal files I have on my computer that have potentially compromising information in them (e.g. bank statements). Right now they are simply sitting on my hard drive, unencrypted. Theft of my device or a breach in access through the network would allow a frightening level of access to many of my records.

As such, what are my options for keeping certain files behind an encryption "shield"? Also, what are the potential tradeoffs for doing so? In researching the topic online I've read plenty of horror stories about people losing archives or whole drives due to encryption-related errors/mistakes. How can I protect against this scenario? Losing the files would be almost as bad as having them compromised!

I'm running Linux, but I'm far from tech-savvy, so I would either need a solution to be straightforward or I'd have to learn a lot to make sense of a more complicated solution. I'm willing to learn mainly because it's not an option for me to continue with my current, insecure setup. I do use a cloud-based password manager that allows for uploading of files, and I trust it enough with my passwords that I would trust it with my files, though I would like to avoid that situation if possible.

With all this in mind, what's a good solution for me to protect my personal files?

I got invited recently and registered my account, but since hearing of it I was curious of where the name comes from. Tildes are dyacritics in Spanish that you put on top of vocals líké thís, and they stress syllables and help with pronunciation. Now, it is a coincidence, isn't it?

Hello.
I moderate a reddit sub with about 450 thousand people and we have had trouble with transgender people facing abuse from idiots in two different threads. In one of them, a woman chimed in and it got ugly (4 bans in the first 12 comments), in the other a trans woman took part and got shit for it (also featured a few users banned).

Now, each of them had a very different approach. The first got defensive and stopped participating, while the second took the time to respond to the stupid but not offensive ones, trying to educate them.

So even if this is something that bothers me a lot and makes considerably angry, I realised that maybe I should take a more nuanced view on this, and I should actually ask for more opinions on how to handle thiS, instead of simply applying my own standards and maybe making things worse and/or missing a chance to make things better. And since Tildes has always provided me with intelligent, thoughtful and interesting points of view and opinions, I thought this would be the best place for this question.

And so here I am, asking anyone that would care to give an opinion: what would a good moderator do? How harsh or lenient should we be with ignorant but not offensive comments? Should we get involved at all if the discussion is not offensive? What would make our sub a nicer place to everyone? Any other thoughts?

Thank you very much to all.

There was a recent thread on ~talk about which linguistics habits people find annoying, and much to my horror, I have most of those which were mentioned. After thinking about it a little more, I realized that a lot of these habits were picked up from the media I consume and the people I interact with. I also feel that this problem is exacerbated by my poor knowledge of English grammar.

While I was taught grammar at an elementary level in school, I didn't quite grok it back then, and mostly relied on my instinct, as to what "sounded" right. I have since forgotten most of what I had learnt, and my instinct is failing me - my grammar is atrocious, my punctuation is terrible and I only have auto-correct to thank for my spelling.

I understand that English, like other languages, is constantly evolving. What is wrong now might be right tomorrow. However, I believe that this is no excuse for my shortcomings as there is merit speaking and writing in accordance with what is considered correct in the present day.

I would like to learn English from "first principles", and would greatly appreciate if some users could suggest some books/resources which could help me (bonus points for resources pertaining to British English). Any other suggestions would also be great.

Thanks, and have a nice day.

Hi, I looked through JS files and I noticed that all JS and CSS are called with weird parameter. tildes.css?aadf6c54 tildes.js?e6d30b42 third_party.js?4393e99 (I changed the string after ?)

Does anyone know why is it done and what does it mean?