October 2014
« Sep   Nov »

Bash : Find the MX records details of a domain name from a file list

Prior to setup a Namse server setup using powerDNS. I want to know whether the domain names are using any external smtp servers or Not. It’s because, If they are using external smtp, I need to contact those customer as well as create the DNS, MX records ass well.


I have given a […]

Finding external hosted domains those are not using my nameservers

One of my client has given a list of 364 domains those he managed for customer accounts. He does not know what all those are active and hosted on the aged Whm/Cpanel server he is using currently. It is very hard for me to found the domain name which are using his current name server […]

IPTables : How do I block access from a country

Recently one of the server was attempted to hack from various countries especially from Ukranine, France and China even though all our customers are located in US. So we do not need to open the web access to any of these countries as they are not belonging to our customer region.

After a few Google […]

How do I convert all MyISAM tables to InnoDB storage engine

One of my client needs to improve the sql query performance as well as to gain better performance on his platform. So I’m planning to convert all the 543 tables to convert InnodDB storage engines to use the 15GB RAM added to the server. It’s very hard to execute the “ALTER TABLE <table _name> ENGINE […]