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Comprehensive guides for devs and sysadmins

Nginx And DDOS Protection

cPnginx and Danginx can use  to protect the HTTP DDOS as follows, Edit the file   /etc/sysctl.conf  and increase the openfile limits. Add the foll....

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Enable Cache in cPnginx Servers

You can enable cache in cPnginx. This will decrease the server load. But enabling cache will show the  website updates slowly only. To enable cach....

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Nginx And HttpRealIpModule

This module is already  enabled by default in cPnginx version 6.0 or  higher . You may simply need to add the   module setting in nginx.conf as fo....

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Fastest method for removing massive amount of spam emails from exim queue

There are a number of methods for removing emails from exim queue. The following one is a generic method , but it is slow , #exim -bpru | awk {....

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New Web acceleration Engine Testing – Turbo Boost Website Loading Speed

Today Syslint  released (alpha inhouse release )one of our own web acceleration engine service. It is currently running  on our  production websit....

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Your SOA EXPIRE number is: 360000. That is NOT OK

This is not a big problem in DNS records. Eventhough this  warning is annoying. The best SOA record expire time is 2 to 4 weeks . To solve this is....

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Curl Issues with curl-ssl , Centos 4.x

You can see there are some resent issues due to update of ca-bundle files. So in Centos 4 servers the common ca-bundle files located on  /usr/shar....

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