December 2013 - admins 24x7

Mysql master-slave replication with percona xtrabackup

Published on December 13, 2013

Mysql master-slave replication with percona xtrabackup This replication will be seted up with Percona tools and xtrabackup. The replication in MySQL performs via binary logs. Replication is only asynchronous. In version Mysql-5.6 GTID (Global Transaction IDentifier) appeared. In theory replication is the process when master servers sends updates to slave server. Next I’m going to … Continue reading Mysql master-slave replication with percona xtrabackup

Linux iptables

Published on December 11, 2013

Linux iptables First off all we should set policy for our firewall: iptables -P Example:

iptables -P INPUT ACCEPT

1	iptables -P INPUT ACCEPT

To show current status of our firewall – iptables: NOTE: this doesn’t mean rules are in /etc/iptables.rules file.

iptables --list --line-numbers -n

1	iptables --list --line-numbers -n

Same, but a little shorter:

iptables -L -n --line-numbers

1	iptables -L -n --line-numbers

keys: -n – do not resolv service names -L / –list – lists rules … Continue reading Linux iptables