Configuration for Master 1 – 10.1.1.1 In your my.cnf file (on Debian 5 it’s located at /etc/mysql/my.cnf, on CentOS/RHEL 5 it’s at /etc/my.cnf) add the following: server-id=1 log-bin=mysql-bin port=3306 max_allowed_packet=256M binlog_do_db= DatabaseName expire_logs_days = 20 max_binlog_size = 500M auto_increment_increment = ...