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    1. Fortnightly Programming Q&A Thread

      General Programming Q&A thread! Ask any questions about programming, answer the questions of other users, or post suggestions for future threads. Don't forget to format your code using the triple...

      General Programming Q&A thread! Ask any questions about programming, answer the questions of other users, or post suggestions for future threads.

      Don't forget to format your code using the triple backticks or tildes:

      Here is my schema:
      
      ```sql
      CREATE TABLE article_to_warehouse (
        article_id   INTEGER
      , warehouse_id INTEGER
      )
      ;
      ```
      
      How do I add a `UNIQUE` constraint?
      
      6 votes
    2. Looking for a good map of the internet

      I did some cursory Googling but found stuff that I'm not looking for (maps of the web and traceroutes hooked up to GeoIP lookups). Is there a resource that will show me the internet as a series of...

      I did some cursory Googling but found stuff that I'm not looking for (maps of the web and traceroutes hooked up to GeoIP lookups). Is there a resource that will show me the internet as a series of interconnected hops? Preferably with information on the connections between nodes that indicates the amount of traffic. I'm interested in the topography of the internet itself - not physically where hops are located.

      7 votes
    3. Fixing GRUB / Bad Kernels

      A few months ago I got a new to me HP Proliant ML310e Gen8. For the most part it works well, but I went to add some drives to it yesterday and grub / whateverthefuck doesn't like the one and only...

      A few months ago I got a new to me HP Proliant ML310e Gen8. For the most part it works well, but I went to add some drives to it yesterday and grub / whateverthefuck doesn't like the one and only kernel that is installed.

      I'm running Ubuntu 20.04. I looked around saw guides like this. this, and this -- but I'm not sure if this will fix the issue.

      After grub I get the ol'

      ---[end Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0) ]---
      

      I think I need to run something with initramfs or something, but I just want to be sure before I go messing around.

      The bad kernel listed is 5.11.0-27-generic. I'm a little out of my element with this part of things.

      2 votes
    4. Experience with Crystal programming language?

      I have heard just a little bit about the language Crystal every so often, probably since it was first mentioned on /r/programming. From what I know, it's Ruby-like syntax but with a static type...

      I have heard just a little bit about the language Crystal every so often, probably since it was first mentioned on /r/programming. From what I know, it's Ruby-like syntax but with a static type system, which seems like a big benefit to me.

      I written just a little bit of Ruby, so the syntax isn't very familiar to me, and I haven't bothered trying Crystal out, but I'm curious to know what kinds of things people do with it.

      So, my questions are: Do you have any experience with Crystal? If so, what have you used it for? Was it a professional or recreational project? How did you like it? What about it stood out to you compared to your experiences with other languages?

      Thanks!

      8 votes
    5. What programming/technical projects have you been working on?

      This is a recurring post to discuss programming or other technical projects that we've been working on. Tell us about one of your recent projects, either at work or personal projects. What's...

      This is a recurring post to discuss programming or other technical projects that we've been working on. Tell us about one of your recent projects, either at work or personal projects. What's interesting about it? Are you having trouble with anything?

      8 votes
    6. If I wanted to make a game like Wordle, where would I start?

      A lot of game engines are geared towards making full-fat games with 3D graphics and animations and sound effects and all that jazz. What if, instead, I want to make something dead simple,...

      A lot of game engines are geared towards making full-fat games with 3D graphics and animations and sound effects and all that jazz. What if, instead, I want to make something dead simple, graphics-less, and minimalistic -- like Wordle? What's the best way to get to something like that (almost more of a digital toy than a full-fledged game)?

      It doesn't have to be web-based at all (though it can be if that's easier? I'm genuinely not sure). My preference would be for open-source engines/tools, but that's not a necessity.

      12 votes
    7. Looking for recommendations for self-hostable static blog software

      I used to use a random FOSS Python program to manage my blog. The software honestly wasn't the best (partially my own fault for not setting it up super well) and I stopped using it, lost my blog's...

      I used to use a random FOSS Python program to manage my blog. The software honestly wasn't the best (partially my own fault for not setting it up super well) and I stopped using it, lost my blog's source code, and haven't updated the blog in a long time because of that. So I'm looking for a static site generator that is simple, well maintained, and no-frills.

      14 votes
    8. What programming/technical projects have you been working on?

      This is a recurring post to discuss programming or other technical projects that we've been working on. Tell us about one of your recent projects, either at work or personal projects. What's...

      This is a recurring post to discuss programming or other technical projects that we've been working on. Tell us about one of your recent projects, either at work or personal projects. What's interesting about it? Are you having trouble with anything?

      5 votes
    9. Fortnightly Programming Q&A Thread

      General Programming Q&A thread! Ask any questions about programming, answer the questions of other users, or post suggestions for future threads. Don't forget to format your code using the triple...

      General Programming Q&A thread! Ask any questions about programming, answer the questions of other users, or post suggestions for future threads.

      Don't forget to format your code using the triple backticks or tildes:

      Here is my schema:
      
      ```sql
      CREATE TABLE article_to_warehouse (
        article_id   INTEGER
      , warehouse_id INTEGER
      )
      ;
      ```
      
      How do I add a `UNIQUE` constraint?
      
      3 votes
    10. Uninterruptible Power Supply (UPS) recommendations and advice

      Hello everyone, I usually do my own research, and then I try to find multiple matching results and afterwards, read specifically in detail about each recommendation, but, I have to be honest that...

      Hello everyone,

      I usually do my own research, and then I try to find multiple matching results and afterwards, read specifically in detail about each recommendation, but, I have to be honest that for UPS recommendations that I’ve seen, it seems to be a very personal recommendation depending on the wattage and connected devices.

      First of all, most people recommend CyberPower or APC, but I’ve also seen some recommendations for Eaton. Is there any other brand that I should be looking into?

      The devices I would like to connect to a UPS would be: desktop, TV, Apple TV, NAS, router and probably my Nintendo Switch.

      There are some general things I've found out while searching that I think I would like some confirmation:

      • I actually think I should buy two UPS's, or? I think just one for the desktop and another one just for the remaining devices, since the desktop uses a lot more wattage.
      • Pure Sine Wave: It does not matter for smaller stuff (routers, etc) but it seems that anything above 70 W, it should use a UPS with this. So, that would mean I need pure sine wave, since my desktop and TV definitely use more than 70 W of power.
      • Some people said to search for a UPS with line conditioning so that you always get a perfect sine wave. Would you agree?
      • USB connection (not a faux USB!) so that the NAS detects the power failure and shuts down gracefully.
      • It is important that the UPS has removable battery for better longevity.

      How would I choose a UPS? Do I need to see the total wattage of all my devices and then pick the UPS accordingly? Anything I'm missing?

      My budget would be up to €100 or €150 in case it is really worth it.

      Thank you in advance for all replies.

      13 votes
    11. What programming/technical projects have you been working on?

      This is a recurring post to discuss programming or other technical projects that we've been working on. Tell us about one of your recent projects, either at work or personal projects. What's...

      This is a recurring post to discuss programming or other technical projects that we've been working on. Tell us about one of your recent projects, either at work or personal projects. What's interesting about it? Are you having trouble with anything?

      5 votes
    12. What programming/technical projects have you been working on?

      This is a recurring post to discuss programming or other technical projects that we've been working on. Tell us about one of your recent projects, either at work or personal projects. What's...

      This is a recurring post to discuss programming or other technical projects that we've been working on. Tell us about one of your recent projects, either at work or personal projects. What's interesting about it? Are you having trouble with anything?

      4 votes
    13. What are your favorite Linux distributions to use for gaming and as a daily driver, and why?

      I'm curious what experiences people who game on linux have had, what your favorite distros are, and why. Mind sharing them in this thread? I'm in the market. My old GTX770 just bit the dust. I...

      I'm curious what experiences people who game on linux have had, what your favorite distros are, and why. Mind sharing them in this thread? I'm in the market.

      My old GTX770 just bit the dust. I picked up a Radeon 6600 to replace it, only to discover after installing it that while the 6600XT has Windows 7 drivers, the 6600 itself does not. The desktop works, but that's it. A little strange, but not entirely unexpected.

      My ancient frankenstein Win 7 Enterprise has got to go (into a VM, already on its way) and there is simply no way in hell I will ever use any version of the spyware/bloatware mess that Windows has become today. They lost me forever the second they put a marketplace and ads into my start menu. Ain't nobody got time for that, or at least, I don't.

      That means it's finally Linux time, for real - no going back. I'm rather excited. :D

      Side note: My original install date for Windows 7 Enterprise was 11-12-2011, it's lasted nearly eleven years without a BSOD or the need to reinstall. They really did fix windows decay syndrome in v7. That's the longest I've ever had a desktop OS last. Can any desktop linux distro manage to go that long, I wonder?

      The last time I ran a linux daily driver was Ubuntu for two years around '08, until I got sick of the pulseaudio issues. I'm not worried about that anymore, linux is ready for primetime now. That begs the question of which distro to use. I've toyed with or supported just about all of them at work (mint, redhat, suse, ubuntu, arch, deb, slack just to name a few). I'm a sysadmin by trade so I'm not phased by the learning curve, I know linux cold already.

      It's more a question of which distro is going to bother me the least acting as my daily driver. I like to tinker at work, but if I have to do it all the time at home I get cranky. I prefer the 'it just works' experience. The primary requirement is linux gaming, as this is my main gaming rig. That means lots of Skyrim Special Edition, Stellaris, Rimworld, emulators, etc.

      There's so many choices out there I'm not sure how to tell which one is the best and I don't particularly feel like putting a dozen of them through their paces over a month to find out - so I'm asking Tildes. ;) I don't mind trying a couple. Steam is required. Good support for WINE is a bonus. Ditto virtual desktop support - is Compiz still a thing or is there something better?

      Here are the system specs. I'm sure it's all fully linux compatible.

      1. Asus Maximus IV Extreme-Z
      2. Intel i7 2600K (3.2GHz, OC'ed to 4.2GHz with a Noctua air cooler, never breaks 60'C)
      3. Sapphire RX6600 GPU w 8GB of DDR6
      4. 16GB of G.Skill DDR3 2400MHz memory
      5. 500GB Samsung SSD, 4x4TB WD Red NAS drives

      Yeah, it's long in the tooth, and I'm glad I went for the Z/K combo so the new GPU isn't entirely gimped plugged into a much older PCIe 2.0 mainboard. I'll pick up a Ryzen sometime to replace it, but not until after the chip shortage shakes out. It was hard enough getting that 6600 in this market without getting scalped.

      21 votes
    14. Fortnightly Programming Q&A Thread

      General Programming Q&A thread! Ask any questions about programming, answer the questions of other users, or post suggestions for future threads. Don't forget to format your code using the triple...

      General Programming Q&A thread! Ask any questions about programming, answer the questions of other users, or post suggestions for future threads.

      Don't forget to format your code using the triple backticks or tildes:

      Here is my schema:
      
      ```sql
      CREATE TABLE article_to_warehouse (
        article_id   INTEGER
      , warehouse_id INTEGER
      )
      ;
      ```
      
      How do I add a `UNIQUE` constraint?
      
      4 votes
    15. What programming/technical projects have you been working on?

      This is a recurring post to discuss programming or other technical projects that we've been working on. Tell us about one of your recent projects, either at work or personal projects. What's...

      This is a recurring post to discuss programming or other technical projects that we've been working on. Tell us about one of your recent projects, either at work or personal projects. What's interesting about it? Are you having trouble with anything?

      10 votes
    16. What programming/technical projects have you been working on?

      This is a recurring post to discuss programming or other technical projects that we've been working on. Tell us about one of your recent projects, either at work or personal projects. What's...

      This is a recurring post to discuss programming or other technical projects that we've been working on. Tell us about one of your recent projects, either at work or personal projects. What's interesting about it? Are you having trouble with anything?

      7 votes
    17. Synology NAS Recommendations & Questions

      Hey everyone! Sorry if this is a long post, but I've done my research and I would like to make a few questions. I've decided that I would like to buy a NAS mainly to storage all of my documents,...

      Hey everyone!

      Sorry if this is a long post, but I've done my research and I would like to make a few questions.

      I've decided that I would like to buy a NAS mainly to storage all of my documents, photos and videos, so that, I can access them from multiple devices and also use it to upload important documents to Backblaze B2. Then, I've actually discovered that I can install a few Docker containers and I could use it as a media server (Jellyfin) and serve the content to my Apple TV (neat!).

      I considered a QNAP (better hardware for the price) but everyone recommends Synology instead (because of the stronger security and better overall software), but to be honest, I'm not sure what should I get.

      My budget would be to buy a NAS (without counting the disks) below €1000. Ideally, €500-600 but I don't mind stretching to the €700 mark, if it is really worth it.

      Spoiler alert: I think, it should be the DS920+ (4-bay) or the DS1520+ (5-bay). I think a NAS above 4-bay is better for future-proofing.

      Looking here in Germany at price comparators, I could buy the DS920+ for €663 and the DS1520+ for €750. But these prices seem to be at an all-time high :(


      Questions & Assumptions:

      0. I'm not sure if the price difference of about €100 is worth the premium to get the 5-bay model. There are only two differences between these two models: The 5-bay has one extra slot, and it has 4x 1 Gbe LAN ports instead of 2x 1 Gbe. All the rest is the same. What is your opinion?

      1. I've read that if you run a few containers (~10) it consumes quite a bit of RAM (~3 Gb), so it should be ideal to have at least 8 Gb. This is the reason I've said that I think I can only choose the DS920+ or DS1520+. Looking at official Synology resellers, these models, seem to come already with 8 Gb, and they are within my budget. Is my research wrong?

      2. These two models, have an encryption engine. I think this is necessary to encrypt my files before sending them to Backblaze, or?

      3. A lot of people seem to say to simply pick Synology's hybrid RAID setup called SHR-1 or SHR-2. I would go the easy way here and pick one of those two. Would you think that is a bad idea, and it is better to pick a specific (standard) RAID? I've read about the long long long RAID rebuild that could happen in some situations, and picking the "right" RAID could decrease the rebuild in days (or weeks!!!!).

      4. In case, I choose a NAS model with Nvme cache slots, most people say it is not worth it to use if you are not running Virtual Machines and the SSD’s "burn" really fast. I have no interest on VMs.

      5. Most people say to pick an Enterprise (Server) HDD instead of a NAS HDD mainly because price is similar in some cases and Enterprise has longer life and warranty. I should also pick a CMR HDD which is helium filled. 5400 rpm would be preferable to 7200 rpm because of the noise. Sadly, all Enterprise HDD's and most of NAS HDD's are 7200 rpm. Is the noise difference that big? The NAS will be in our living room.

      6. Is 8 TB still the best cost per Terabyte?

      7. I was extremely sad to hear that the Hitachi hard drive division was bought by WD. I've had lots of misfortune with WD drives (and let's not forget the debacle with the SMR and CMR drives) and I would prefer not to give money to them, but, nevertheless, I'm still tempted to buy the Ultrastar drives that belonged to Hitachi. Does anyone know if WD kept the components, manufacturing processes, staff, etc., that made these brilliant disks?

      8. Following the HDD topic, what is your experience with Seagate or Toshiba drives?

      9. These two NAS models have the same Intel Celeron CPU, which supports hardware transcoding. To be honest, I don't know in which cases would that happen. It seems if I use Infuse on the Apple TV it would never transcode (and instead direct play) because Infuse would do the transcoding in software. Should I take in account that hardware transcoding is a must-have or a nice-to-have?

      10. Would you recommend having a CCTV system connected to the NAS? Should I dedicate one entire HDD just for the NVR system? Would a standalone NVR device be better?

      11. My last question is: Should I just wait for the new model of the DS920+ or DS1520+? The 20 means it was launched in 2020 (in Summer specifically) and it seems Synology refreshes the model every two years., that means, a new model would be available in Summer this year. Most people say it is not worth the wait because Synology is very conservative in its model updates/refreshes. People are saying that a better CPU will be of course available (do I even need that for my use cases?) and probably upgrade the 1 Gbe LAN ports to 2.5 Gbe or 10 Gbe (10 Gbe I really doubt it). I've read that a 4K stream does not fill a 1 Gbe bandwidth, and you could theoretically have three 4K streams in a single 1 Gbe connection. If all else fails, I could just do a link aggregation of the two ports to be 2 Gbe, or?

      12. Anything I'm forgetting? Should I be careful with something in particular?


      I know I should buy a UPS too, but I think I'll create a separate post regarding this topic because I would also want a recommendation regarding a UPS for my other devices.

      I know that I could actually build my own NAS and use Unraid for the OS. Furthermore, I'm just at a time in my life with too much on my plate (baby and small child) and having something that just works is preferable. When they are older and more independent, I'll have more time to investigate this option :)

      Again, sorry for the long post. Thank you everyone!

      12 votes
    18. Fortnightly Programming Q&A Thread

      General Programming Q&A thread! Ask any questions about programming, answer the questions of other users, or post suggestions for future threads. Don't forget to format your code using the triple...

      General Programming Q&A thread! Ask any questions about programming, answer the questions of other users, or post suggestions for future threads.

      Don't forget to format your code using the triple backticks or tildes:

      Here is my schema:
      
      ```sql
      CREATE TABLE article_to_warehouse (
        article_id   INTEGER
      , warehouse_id INTEGER
      )
      ;
      ```
      
      How do I add a `UNIQUE` constraint?
      
      5 votes
    19. What programming/technical projects have you been working on?

      This is a recurring post to discuss programming or other technical projects that we've been working on. Tell us about one of your recent projects, either at work or personal projects. What's...

      This is a recurring post to discuss programming or other technical projects that we've been working on. Tell us about one of your recent projects, either at work or personal projects. What's interesting about it? Are you having trouble with anything?

      11 votes