Linux Tutorials 32
How To Use Percona Xtrabackup To Create A MySQL Slave
Percona Xtrabackup can be used to create “hot backups” of MySQL servers fairly quickly and can avoid some of the pitfalls of mysqldump. Xtrabackup can be setup to use backup locks instead of read locks which is much less invasive, this is available on innodb tables. MyISAM and other tables will still need to be […]
Galera Cluster MariaDB Configuration On CentOS 7
Galera cluster is a true multi-master MySQL cluster using synchronous replication. It allows for any of the nodes to be used as a master or all of them as well as providing automatic node joining and node removal. The multi-master configuration is very different from the typical master-slave configuration done with MySQL servers and […]
How To Install NTPD On CentOS 7
NTP (Network Time Protocol) is a protocol which allows computers to synchronize time. NTPd is a daemon that maintains the system time in synchronization with other NTP servers. This prevents drift which is the slow inconsistency of time on computers internal clocks. Keeping system time accurate is particularly important for system logs, replication, and applications. […]
Install And Configure ProFTPD On CentOS
ProFTPd is an Open source FTP daemon, widely used for its granular configuration ability. This is a guide to provide install methods for both CentOS 7 aswell as CentOS 6 and below. You can read more about ProFTPD on the project’s website. Install ProFTPD ProFTPD is in the EPEL repository, you will need to install […]
Bash Scripting Introduction
Essentially bash scripting is just linking commands together. You can perform many tasks consistently using predefined scripts allowing them to become repeatable and standardized. If you are looking for more information you can check out the bash man page. Each script should start with a “shebang” telling which environment to interpret the script, bash scripts […]
How To Upgrade Supervisord In CentOS 6
Supervisord is a simple system for process management and monitoring. It can start processes or restart them when they crash. The repositories for CentOS 6 for supervisor are quite old (version 2.x) which do not contain the latest features. You can read more on the project’s website. If you already have an existing installation installed through […]
How To Setup SSH Key Authentication
SSH key authentication can be used for password-less login between 2 servers. This is also useful for adding a key to accounts like git or gitlab for version management. Source Server SSH Key Configuration Generate a RSA key for this system by typing the following ssh-keygen -t rsa The key generated will ask for a […]
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