Abhijit Sandhan

Abhijit Sandhan
Loves Linux, Blogging, Traveling, Hiking and sharing Knowledge!

Exim Error : lowest numbered MX record points to local host exim

Exim is a message transfer agent (MTA) and widely used an alternative for sendmail. Sometimes, there is no problem in sending emails but emails are not recieved at recievers end.     The first you should do is to check the exim mainlog using following command tail -f /var/log/exim_mainlog If you can see the error as below 2011-04-22 01:30:47 H=mail-xxx-xxx.domain.com …

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How to Install RkHunter on Linux Server

Rootkit (RkHunter) scanner is scanning tool to ensure you for about 99.9%* you're clean of nasty tools. This tool scans for rootkits, backdoors and local exploits by running tests like:MD5 hash compare, Look for default files used by rootkits, Wrong file permissions for binaries,Look for suspected strings in LKM and KLD modules, Look for hidden files,Optional scan within plaintext and …

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SIM (System Integrity Monitor) Installation and Configuration

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SIM (System Integrity Monitor) is a system and services monitor for ‘SysVinit’ systems. It is designed to be intuitive and modular in nature, and to provide a clean and informative status system.It does this by consistently verifying that services are online, load averages are in check, and log files are at reasonable sizes. Many other SIM modules sport different and …

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What is the Use of rsync Command in Unix & Linux

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Rsync is a very useful alternative to rcp written by Andrew Tridgell and Paul Mackerras. This tool lets you copy files and directories between a local host and a remote host (source and destination can also be local if you need.) The main advantage of using Rsync instead of rcp, is that rsync can use SSH as a secure channel, …

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cPanel Error "cpsrvd dead but pid file exists" [solved]

Sometimes one might get error while restarting cPanel service from shell using as "cpsrvd dead but pid file exists". There is nothing to get panic, just follow the simple solution provided below:   Error: [email protected][#]service cpanel status cpsrvd dead but pid file exists entropychat (pid 7397) is running... melange is stopped stunnel (pid 7523) is running... interchange is stopped qrunner …

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