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Two Things You Should Know About Logrotate Behavior in Linux
While developing a logrotate configuration for the Ghost CMS system, I learned some things about the behavior of logrotate that…
SysAdmin
13 posts
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How To Revert a Proxmox Kernel Update
It's common for a kernel update to break an otherwise functional system. In this guide you will learn how to change the default kernel on Proxmox.…
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Log4j for Dummies: How to Determine if Your Server (or Docker Container) Is Affected by the Log4Shell Vulnerability
Log4j is the cybersecurity disaster of the decade. If you thought the SolarWinds hack was bad, well, you ain't seen nothing yet. So what's going on and what's so bad about this exploit? I researched the most expedient and effective way to check for the log4j vulnerability so you don't have to.…
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Experiments with apcupsd in Debian/Proxmox: Answers to Questions You Didn't Know You Had
While setting up an apcupsd client on Proxmox, a bunch of questions crossed my mind about the behavior of the apcupsd daemon. I did the experiments to get answers so you don't have to. I hope you find the below apcupsd Q&A helpful. Hopefully it will help you design a better homelab network.…
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Automatically Resolve NFS Stale File Handle Errors
NFS Stale File Handles can be one of the most frustrating problems when it comes to network-attached storage (NAS). In this guide, we'll talk about methods you can use to equip your NFS clients to recover automatically from stale file handle errors.…
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Save Disk Space By Setting Up Logrotate with Your Ghost Blog
The Ghost blog platform doesn't automatically set up logrotation when it is installed. As a result, Ghost will perpetually append to its log files until you run out of disk space. Here is how to fix it using the logrotate utility in Linux.…
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How To Set Up a WireGuard VPN Server on Ubuntu Linux
With WireGuard now officially supported by Ubuntu and integrated into the Linux kernel, I’ve decided it’s high time to for dedicated guide on how to set up a WireGuard VPN server on Ubuntu.…
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Ubuntu's Latest LTS RC Is Out: Here's How to Upgrade to Ubuntu 20.04 LTS Focal Fossa
Ubuntu's latest LTS is now out, bringing with it a bunch of exciting new features. In today's short guide, we'll learn how to update to Ubuntu 20.04 Focal Fossa.…
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LVM, Thin Provisioning, and Monitoring Storage Use: A Case Study
If you're not monitoring your server's storage use, it can quickly run away from you. Today's guide shows you how to keep an eye on things with an introduction to LVM thin provisions and monitoring disk use with Diskover, lvs, and Grafana utilities.…
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How to Set Up WireGuard on a Raspberry Pi
WireGuard is rapidly becoming the go-to VPN, with even Linus Torvalds himself praising it. In fact, Torvalds is such a fan, he has merged it directly into the Linux kernel. But why is WireGuard receiving so much praise and should you use it? Keep reading to find out.…
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tmux for Beginners: A Quick and Easy Introduction
Boost your productivity with this tutorial in how to use tmux. Protect yourself against unexpected disconnects and improve development workflows.…
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How to Monitor Disk Usage and Growth with Diskover
Monitoring server storage should be part of every data center monitoring procedure. Learn how to monitor and analyze server storage use and growth with Diskover.…