:: Disable PF on OpenBSD
:: What is pf
Packet Filter (from here on referred to as PF) is OpenBSD's system for filtering TCP/IP traffic and doing Network Address Translation.
:: pm.min_spare_servers(0) must be a positive value
:: error starting php-fpm
[pool www] pm.min_spare_servers(0) must be a positive value:: How to fix php-fpm error
:: Install MySQL 5.5 from source
:: What is MySQL
MySQL is a relational database management system (RDBMS) that runs as a server providing multi-user access to a number of databases. - wikipedia
:: How to install MySQL 5.5 on Linux OpenSUSE
:: vsftpd jail users
:: What is vsftpd
vsftpd is an FTP server for Unix-like systems, including Linux. It is licensed under the GNU General Public License. It supports IPv6 and SSL. - wikipeda
:: Uninstall Plesk on CentOS
:: What is Plesk
The Parallels Plesk Panel (ex: Parallels Plesk Control Panel, Plesk Server Administrator, PSA,[citation needed] or just Plesk) software package is a commercial web hosting automation program. - wikipedia