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MySQLTuner is a script written in Perl that will assist you with your MySQL configuration and make recommendations for increased performance and stability.
These are policy-driven snapshot management and replication tools which use OpenZFS for underlying next-gen storage. (Btrfs support plans are shelved unless and until btrfs becomes reliable.)
a tool for backing up your data using rsync (if you want to get help, use https://lists.sourceforge.net/lists/listinfo/rsnapshot-discuss)
An open-source digital image forensic toolset
Simple script to analyse your PostgreSQL database configuration, and give tuning advice
Tool for creating snapshots and remote backups of btrfs subvolumes
ModSecurity v3 Nginx Connector
**ack 2 is no longer being maintained. ack 3 is the latest version.**
Percona Toolkit: a collection of advanced open source command-line tools.
Tool to manage using git as a deployment management tool
Thruk is a multibackend monitoring webinterface for Naemon, Nagios, Icinga and Shinken using the Livestatus API.
ConfigServer Security & Firewall (CSF) - Robust linux iptables/nftables firewall & free ipset blocklist service.
A tool for visualizing changes in Linux software packages
Auto-builds and tests all the branches of your git projects, showing pass/fail results on a web page/RSS feed. Isolates failures to the first commit that caused the problem.
git-based zone management tool for static and dynamic domains
check_rbl is a Nagios plugin to check if an SMTP server is blacklisted
An attempt at automating large rebuilds in Arch Linux
Create an ipset based blocklist imported from an text file (automatically downloaded from e.g. blocklist.de. Multiple Sources at once supported).