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Archive for juni, 2010

Mysql Master Master Replication on CentOS 5

dinsdag, juni 22nd, 2010

This tutorial describes how to set up a MySQL master-master replication. This is usefull is one of the servers drops down, the other can take over without any data loss, it will also be used as slave for the live one.
Step 1:
Install mysql on master 1 (slave 2) and slave 1 (master2).
#yum install mysql-server mysql
Master [...]

Install postfix mailserver only for forwarding

dinsdag, juni 1st, 2010

For some reasons i only had to install a mailserver for forwarding mails to other mailaddresses. So on Centos here you have it:
#yum install postfix smtpd
edit /etc/postfix/main.cf
myhostname = your.domain.tld
virtual_alias_domains = redirectdomain1.tld, redirectdomain2.tld
virtual_alias_maps = hash:/etc/postfix/virtual
edit /etc/postfix/virtual
address@redirectdomain1.tld   addresto@domainto.tld
@redirectdomain2.tld  addresstocatchall@domaintoxx.tld
After this run the following commands:
# postalias /etc/aliases
# postmap /etc/postfix/access
# postmap /etc/postfix/virtual
# postmap /etc/postfix/transport
# cp /etc/aliases /etc/postfix/
# newaliases
# postfix [...]