THE COMPANY INDEX TRACKED BLOG
Ideas, decisions, and lessons from the team.
linuxblog.io (opens on the source site)If your Linux server is bogged down by disk I/O, your first step may often be to use the top command in the terminal to check load averages.Continue reading...
Read at the sourceBash history does a lot more than scroll up. Learn how to configure HISTSIZE, timestamps, multi-terminal sync, and search shortcuts to get real productivity gains at the command line.Continue reading...
Read at the sourceA practical guide to creating, managing, and tuning swap files and swap partitions on Linux using mkswap, swapon, and swapoff, with real commands and common troubleshooting fixes.Continue reading...
Read at the sourceI recently reinstalled my main desktop from scratch: Debian testing via Kali underneath (read first before judging) and XFCE on top. One of the reasons I keep coming back to XFCE is its built-in power management.Continue reading...
Read at the sourceLearn how to tune Linux kernel parameters using sysctl and /proc/sys for better network throughput, memory management, file I/O, and server security. Includes a ready-to-use baseline config.Continue reading...
Read at the sourceThe /proc filesystem is a live window into the Linux kernel: process state, memory layout, CPU counters, network stats, and writable kernel tunables, all accessible with nothing but cat and grep. This guide walks through the most useful files and per-process directories with practical examples.Continue reading...
Read at the sourceA practical guide to DNS resolution on Linux: how /etc/resolv.conf, systemd-resolved, and dig work together, and how to troubleshoot common nameserver failures.Continue reading...
Read at the sourcePassword-based SSH login is a liability. This guide walks through generating SSH key pairs with ssh-keygen, deploying public keys, disabling password authentication, and managing multiple keys cleanly with ~/.ssh/config.Continue reading...
Read at the sourceThe nc command (netcat) is a lightweight but surprisingly powerful networking tool for port testing, file transfers, banner grabbing, and connectivity debugging. This practical guide covers the flags and real-world usage patterns that Linux users and sysadmins actually reach for.Continue reading...
Read at the sourceIf you've ever looked at your server and wondered why it's using swap even though plenty of RAM is available, you're not alone. This is a common scenario on Linux systems, and it can impact performance if not addressed.Continue reading...
Read at the sourceHard links and soft links in Linux both use the ln command but behave very differently. This practical guide explains exactly how each works, when to use which, and how to avoid the common pitfalls that catch even experienced sysadmins.Continue reading...
Read at the sourceServers give you warnings before they fail. Most sysadmins performing Linux server monitoring miss them because they're watching the wrong numbers. The metrics that actually matter are one level deeper: iowait instead of CPU percentage, active swap paging instead of memory usage, inode counts instead of just disk space.Continue reading...
Read at the sourceLinux is a powerful and versatile operating system that can be used for a wide range of purposes. For many system administrators, the command line interface is the primary way to interact with the system.Continue reading...
Read at the sourceUpdate (one year later): The verdict is in. I went with the TP-Link SG2210XMP-M2, and after a full year in the rack it's been running flawlessly: fanless, multigig, VLANs and not a single issue.Continue reading...
Read at the sourceThis article is inspired by our LinuxCommunity.io forum discussion thread (thanks to users @tmick and @shybry747 for the feedback). Let's walk through what Podman is and how to use it as a Docker alternative on Linux.Continue reading...
Read at the sourceLast week I walked into an empty 5 × 4 ft storage room. By the end of the week, that blank space held a fully functional network core designed to keep a small professional office online through power cuts, ISP hiccups, and future growth.Continue reading...
Read at the sourceThe watch command runs any Linux command repeatedly at a set interval and displays the output full-screen, making it one of the quickest ways to monitor live system activity without writing a script. This guide covers all the key options with practical examples for real sysadmin use cases.Continue reading...
Read at the sourceI’ll admit, I hesitated a bit before writing this post. The whole point of this linuxblog.io and linuxcommunity.io forum is to bring together like-minded Linux users and professionals so we can troubleshoot, share ideas, and learn from one another.Continue reading...
Read at the sourceNginx TLS tuning won't fix a slow application, but it does cut handshake overhead and improve connection reuse, which shaves milliseconds off every HTTPS request.Continue reading...
Read at the sourcetmpfs lets you mount a filesystem entirely in RAM. Here is how Linux already uses it, how to create your own mounts, and where it actually makes sense to use one.Continue reading...
Read at the source