Server Administration
Check Disk, Memory and CPU Usage From the Terminal
Diagnose a struggling Linux server in under a minute with df, du, free and top - which resource is short, and which directory or…
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Category: Server Administration
Server Administration
Rotate Logs With logrotate
A log file that grows forever will eventually fill the disk. Write a logrotate config that renames, compresses and expires old copies, test it…
Server Administration
Set File and Directory Permissions With chmod
Set file and directory permissions with chmod, numerically and symbolically, and you control exactly who can read, write, or execute anything on a Linux…
Server Administration
Create a systemd Service
Create a systemd service to keep a long-running program alive - started at boot, restarted on a crash, logs collected. This tutorial writes a…
Server Administration
Enable Gzip Compression in Apache
Enable gzip compression in Apache with mod_deflate and every text response shrinks before it crosses the wire. This tutorial loads the module, sets AddOutputFilterByType…
Server Administration
Connect to a Remote Server Using SSH Keys
Log in to a remote server without a password using SSH keys. Generate an ed25519 key pair, copy the public key to the server,…