Top IT Subreddits for Sysadmins, Help Desk and Career Changers
- r/sysadmin: best overall for working IT pros.
- r/ITCareerQuestions: getting into IT, certs, first jobs.
- r/homelab: learning by building at home.
- r/networking: enterprise networking, strictly professional.
- r/cybersecurity: security news and careers.
- Also good: r/techsupport, r/msp, r/PowerShell, r/linuxadmin, r/k12sysadmin.
The top IT subreddits are r/sysadmin for working administrators, r/ITCareerQuestions for anyone breaking into IT, r/homelab for hands-on learning, r/networking for network engineers and r/cybersecurity for security work. If you only join one, join r/sysadmin and read it daily for a month before posting.
IT people have used Reddit as an unofficial support line for years. The best IT subreddits have something no vendor forum has: thousands of admins who will tell you, bluntly, that the product you’re evaluating broke their environment last Tuesday.
Quick verdict
Join r/sysadmin if you work in IT. Join r/ITCareerQuestions if you’re trying to. Everyone should lurk in r/homelab, because it’s where people quietly learn the skills that get them promoted.
How we picked: each subreddit had posts in the last 24 hours when we checked in November 2026, real moderation (spam gets removed), and a clear purpose. Sizes are rounded tiers because counts change daily.
| Subreddit | Size | Best for | Watch out for |
|---|---|---|---|
| r/sysadmin | 1M+ | Working admins | Lazy questions get roasted |
| r/ITCareerQuestions | 1M+ | Breaking into IT | Repetitive cert debates |
| r/homelab | 1M+ | Learning at home | Very expensive hobby |
| r/networking | 250k+ | Enterprise networks | No home networking questions |
| r/cybersecurity | 1M+ | Security careers & news | Lots of “how do I start” posts |
| r/techsupport | 1M+ | Personal device help | Slow answers on rare issues |
| r/msp | 100k+ | MSP owners and techs | Vendor drama |
| r/PowerShell | 250k+ | Windows automation | Assumes you can read code |
| r/linuxadmin | 250k+ | Linux server work | Small daily volume |
| r/k12sysadmin | Niche | School IT | Narrow by design |
r/sysadmin
r/sysadmin is the center of IT Reddit. Microsoft outages show up here before the status page updates. Patch Tuesday threads collect real-world breakage within hours. The recurring Moronic Monday and Thickheaded Thursday threads (yes, those are the names) give newer admins a safe place to ask basic questions.
The downside is tone. Post “how do I set up a domain controller” with no context and you’ll get mocked. Include your environment, what you tried and what broke, and the help is excellent.
r/ITCareerQuestions
r/ITCareerQuestions is where help desk techs ask how to become sysadmins and career changers ask whether the CompTIA A+ is still worth it. It’s friendly, busy, and honest about the job market, which has been rough for entry-level IT since 2023.
It gets repetitive. The same five questions come up every day. Search first, and read the wiki.
r/homelab
r/homelab is people running enterprise gear (or Raspberry Pis) at home to learn. Rack photos, Proxmox setups, power bill confessions. It’s one of the most useful learning communities on Reddit because everything is hands-on. Pair it with r/selfhosted if you’re more interested in the software side.
Fair warning: it’s an expensive hobby to read about. People will make a decommissioned Dell server look very tempting.
r/networking
r/networking is strictly for enterprise and service provider networking. Home Wi-Fi questions get removed immediately (go to r/HomeNetworking for those). That strictness is why it’s good. The regulars are senior engineers, and BGP threads here are better than most vendor docs.
r/cybersecurity
r/cybersecurity mixes breach news, tool discussions and career advice. The news threads are solid. The career threads are flooded with people asking how to start, so the experienced members tend to answer in the weekly mentorship thread rather than individual posts. For hands-on learning, r/netsec is more technical and more heavily moderated.
The rest, briefly
r/techsupport is for your own computer or phone, not your company’s. Answers are hit or miss for rare problems but quick for common ones.
r/msp is for managed service providers, and it’s surprisingly candid about pricing, tooling and which RMM vendor everyone is mad at this month.
r/PowerShell is the best place to get a script reviewed. r/linuxadmin is quieter but the answers are high quality. r/k12sysadmin is tiny and very specific, and that’s the point: school IT has problems nobody else has.
How to post without getting removed
Read the sidebar, every time. IT subreddits are strict about vendor posts, surveys and homework. Don’t post the same question to five subreddits at once; mods talk to each other. And if you work for a vendor, say so in the post.
Developers should also look at our top programming subreddits, which overlap with r/PowerShell and r/linuxadmin but lean toward building software rather than running it. If you’re starting an IT consulting business, the top subreddits for entrepreneurs cover the business side.
Spotted an IT subreddit that’s been abandoned? Plenty of narrow IT names have no active mods. How to find dead subreddits shows how to check.
Back to the full top subreddits list.
FAQ
What is the best subreddit for IT help?
For personal computer problems, r/techsupport. For problems at work, r/sysadmin, but search first and include your environment details or the post will be ignored.
Is r/ITCareerQuestions good for beginners?
Yes. It's the most beginner-friendly IT subreddit on this list. Read the weekly threads and the wiki before posting a 'how do I get into IT' question, because that one gets asked daily.
Can I post vendor or product questions on r/sysadmin?
Yes, as long as you're asking as a user. Vendors posting marketing get removed and often banned.
