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servers

12 April 2017Christophe CasalegnoNo comments

How to check whether a domain is correctly synchronised between two DNS servers

>Hello World, Sometimes it can be useful to check whether a domain is correctly synchronised on your master and slave DNS servers. The simplest way to do that is to compare the zone’s serial numbers on the two DNS servers. You can also use this method to see how …

14 July 2015Christophe Casalegno1 comment

How to automatically take action if the load average is too high

When you manage servers , it can be useful to take a number of actions automatically (restart a service, add a firewall rule, kill a process, send an alert, etc.) if the load average is too high. The problem with many shell scripts for this is that, if the load average drops slowly after the …

Christophe Casalegno Brain 0verride

Keep it simple
and direct!