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How to gracefully reboot MariaDB Galera Cluster servers?
Cluster Configuration In this example configuration of two nodes, we assume that the servers are connected over private network. This allows direct connections without requiring SSH tunnels. The most important parts is to enable listening on IP protocol and to configure addresses and names of the cluster nodes. The config files are similar for each […]
Securing Asterisk IP-PBX with Fail2Ban
What is Fail2Ban? Any service that is exposed to the internet is susceptible to attacks from malicious parties. If your service requires authentication, illegitimate users and bots will attempt to break into your system by repeatedly trying to authenticate using different credentials. A common example of this is with SSH, which will be the subject […]
Upgrade MySQL to Version 5.6 in CentOS
Backup all the database and stop mysql mysqldump -u (userid) -p (password) –all-databases > all-databases.sql service mysqld stop Download the Repo for MySql 5.6 wget http://dev.mysql.com/get/mysql-community-release-el6-3.noarch.rpm/from/http://repo.mysql.com/ Install the repository from the local file yum localinstall mysql-community-release-el6-3.noarch.rpm Install the latest MySql yum install mysql-community-server service mysqld start Configure MySQL to start automatically on Server Reboot chkconfig […]