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Alan West3d ago • 5 min read
Why your VPS might be part of a botnet — and how to find out
How to detect when your servers have been compromised into attack infrastructure, with a step-by-ste...
#security#devops#linux#sysadmin
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Seneelya3d ago • 8 min read
NTFS Blind Spot: Folder Protection (Non-Recursive) from Accidental Deletion in Windows (Docker-Friendly)
Hey everyone, I want to share a native Windows solution for protecting folders from accidental...
#devops#docker#sysadmin#discuss
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Vivian Voss3d ago • 5 min read
find: The Little Language Pretending to Be a Command
Technical Beauty — Episode 37 A disk is filling up. Somewhere under /var are thousands of stale...
#unix#freebsd#cli#sysadmin
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Vainamoinen | Pulsed Media5d ago • 4 min read
apt-mark hold doesn't pin versions — how it nearly removed OpenSSH across our fleet
apt-mark hold blocks upgrades, not removals. Forcing a downgrade against a held package can make apt...
#linux#debian#sysadmin#devops
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Schiff Heimlich2d ago • 2 min read
A Caddy Cert Expired Because systemd-resolved Was Selectively Lying
Here's something that took longer to debug than it should have. The setup Running Caddy....
#ssh#dns#devops#sysadmin
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endoflife-ai1d ago • 4 min read
RHEL End of Life Dates: Complete Red Hat Enterprise Linux Lifecycle Guide (2025–2035)
Complete RHEL EOL guide covering Red Hat Enterprise Linux 7, 8, 9, and 10 end of life dates, minor v...
#linux#rhel#redhat#sysadmin
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Alex2d ago • 3 min read
CyberPanel + LiteSpeed vs cPanel: A NOC Engineers Infrastructure Assessment
Originally published at www.tothenoc.com I've monitored both stacks in production. cPanel...
#devops#infrastructure#sysadmin#security
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Schiff Heimlich3d ago • 1 min read
systemd-resolved broke my TLS cert renewal
I ran into something dumb last week. Caddy's certificate renewal kept failing silently, and it took....
#ssh#dns#devops#sysadmin
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Schiff Heimlich4d ago • 2 min read
SSH Login Delays: The 10-Second Wait That Drives Us Crazy
The Problem Every sysadmin has been there: you SSH into a server and wait... and wait......
#ssh#dns#devops#sysadmin
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Alex2d ago • 3 min read
What a 4-Hour NOC Response SLA Actually Means at 3am
Originally published at www.tothenoc.com SLAs are contracts. What matters is...
#devops#sysadmin#infrastructure#monitoring
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endoflife-ai1d ago • 4 min read
Debian End of Life Dates: Debian 10, 11, 12, and 13 Support Timelines
Exact end of life dates for Debian 10 (Buster), Debian 11 (Bullseye), Debian 12 (Bookworm), and Debi...
#linux#debian#sysadmin#opensource
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Sreekanth Kuruba3d ago • 2 min read
Linux File Permissions Explained Simply
Ever ran a Linux command and saw this? Permission denied It feels random at first — but it’s...
#devops#beginners#sysadmin#linux
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endoflife-ai1d ago • 4 min read
Cisco IOS XE End of Life Dates: Full Version EOL & EoS Guide (17.x)
End of sale and end of software maintenance dates for all Cisco IOS XE 16.x and 17.x releases — 17.3...
#networking#cisco#security#sysadmin
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Alex2d ago • 3 min read
When You Need Outsourced NOC Monitoring (And When You Dont)
Originally published at www.tothenoc.com The honest answer is: it depends. Most...
#devops#sysadmin#monitoring#infrastructure
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Mustafa ERBAY3d ago • 7 min read
3 Load Balancing Strategies for High Availability in Side Projects
In my side projects and small-scale corporate applications, ensuring my servers are always accessibl...
#life#loadbalancing#highavailability#sysadmin
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Sreekanth Kuruba1d ago • 3 min read
Linux User & Group Management Explained Simply
Ever wondered how Linux knows: who can access what, and what they are allowed to do? That’s not...
#devops#sysadmin#beginners#linux
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Gal Shalom6h ago • 3 min read
The Hidden Cost of Slow IT Onboarding at Growing Companies
At a company hiring 2 people a month, slow IT onboarding wastes 24 half-days a year. Here's why it h...
#itmanagement#productivity#sysadmin#saas
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Gal Shalom6h ago • 3 min read
Why Employee Offboarding Is Your Biggest Security Risk
Most SMBs discover offboarding gaps only after something goes wrong. Here's why ex-employee access i...
#security#itmanagement#sysadmin#saas
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Shannon Dias6d ago • 2 min read
DDR5 in Enterprise Servers: Theoretical vs. Real-World Gains
DDR5 promises 50% more bandwidth than DDR4. But what do enterprise servers actually gain in producti...
#devops#sysadmin#architecture#hardware
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Elecard2d ago • 2 min read
Troubleshooting Multicast Reception: 4 Common Pitfalls
Most initial setup issues with multicast can be fixed in just a couple of minutes if you know where....
#networking#linux#devops#sysadmin
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anatraf-ntaMay 22, 2026 • 5 min read
How to Troubleshoot Intermittent DNS Latency in Enterprise Networks
Enterprise teams often call DNS a "basic service" right up until a slow lookup starts making SaaS...
#networking#monitoring#devops#sysadmin
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Vika Beckerman4d ago • 4 min read
Automatic Attendance from Door Entry: ROI Calculation for Enterprise
Automatic Attendance from Door Entry: ROI Calculation for Enterprise Every time an...
#security#sysadmin#management#productivity
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Vika Beckerman4d ago • 4 min read
How to Audit Employee Access Logs for HR and Security Compliance
How to Audit Employee Access Logs for HR and Security Compliance Access logs are among the...
#security#sysadmin#management#productivity
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LabbyMay 22, 2026 • 2 min read
Secure Your Linux Server: 3 Essential Fixes for Admin Access and Sudo Rules
Learn to secure your Linux server in 90 minutes. Master how to restrict admin interfaces to localhos...
#linux#security#sysadmin#tutorial
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