Linux

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Trim

found top level header in "/notes/linux/trim/" that didn't match meta title ("TRIM" != "Trim")TRIM tells an SSD which blocks are no longer in use so the drive can erase …

encryption linux storage

Cron Daemon

Cron is a pretty standard utility and there isn't much to it. I generally use cronie as my cron daemon with the associated anacron helper for systems that aren't always on such as laptops and …

linux operations

Logrotate

Logrotate is a pretty simple and straight forward program. It's generally run as a nightly cron job testing the various configured file to see if they match their respective criteria for rotation. …

linux logging operations

SSHd

Secure Shell or SSH is a network protocol that allows data to be exchanged using a secure channel between two networked devices. Used primarily on GNU/Linux and Unix based systems to access shell …

linux security networking

Data Recovery

Recovering Data from SwapSometimes useful bits of information can be recovered from swap. Whether it's encryption keys, documents that were being worked on or anything else that might've ended up in …

linux storage tips

Server Naming Convention

Over the years I've found myself using many different naming schemes for servers under my control. I came across a naming convention that finally feels correct. That blog post is quite well written …

linux operations dns

LM Sensors

Useful for monitoring system statistics such as CPU core temperatures, fan speeds, and voltages. SetupAfter installing the lm_sensors package, run sensors-detect as root to walk through loading any …

linux hardware monitoring

RPM Build

References: https://fedoraproject.org/wiki/How_to_create_an_RPM_package https://fedoraproject.org/wiki/Packaging:Guidelines Build Environment SetupCreate a dedicated build user. Never build RPMs as …

linux fedora operations

Transmission Daemon

ConfigurationFirst install the transmission-daemon. The package is typically called transmission-daemon on Debian/Ubuntu and transmission-daemon or transmission-cli on Fedora/Arch. # Install the …

linux services networking