How to secondary mx or secondary mailserver holds mailqueue if primary server is down.

How to backup mx or secondary mailserver holds mailqueue if primary server is down.

Domain >arvind-madhukar.info
Server1>linux1.arvind-madhukar.info (1.1.1.1)
Server2>linux2.arvind-madhukar.info (2.2.2.2)

On Server2>linux2.arvind-madhukar.info (2.2.2.2)
-------------------------------------
Add/edit domain(arvind-madhukar.info) in /etc/secondarymx
Add/edit domain(arvind-madhukar.info) in /etc/remotedomains

Note: Allow (1.1.1.1) in your trusted host and Graylisting (Mail)

Server1>linux1.arvind-madhukar.info (1.1.1.1)
-------------------------------------
Modify dns zone file as below on primary server:

arvind-madhukar.info 14400 IN mx 0 arvind-madhukar.info
mx2      14400 IN A    2.2.2.2
arvind-madhukar.info 14400 IN mx 2 mx2.arvind-madhukar.info

Popular posts from this blog

System runs out of space, space returns after restart

This is not an answer, but some tips on how to identify the source of the problem. Exactly which location use your hard drive space. To find what is taking the space, you can do the following: First, get a listing of the occupied space of the root folders with  sudo du -h -d 1 --exclude=/proc --exclude=/run / . This will give you some output like the following: 309M /opt 3,8G /var 512K /root (...) 3,5M /lib32
Read more

How to set Worker Properties in Apache2

We have to create new file (workers.properties) inside /etc/apache2/ $sudo nano workers.properties #past below lines # configure jk-status worker.list=jk-status worker.jk-status.type=status worker.jk-status.read_only=true # configure jk-manager worker.list=jk-manager worker.jk-manager.type=status worker.balance1.type=lb # Define 1 real worker using ajp13 worker.list=worker1 #Set properties for worker (ajp13) worker.worker1.type=ajp13 worker.worker1.host=localhost worker.worker1.port=8009 8009=Current tomcat AJP Port Conclusion ---- By using workers.properties we can manage our particular tomcat with specific website. Example for other Tomcat we have to just put some changes in the same file $sudo nano workers.properties #past below lines # configure jk-status worker.list=jk-status worker.jk-status.type=status worker.jk-status.read_only=true # configure jk-manager worker.list=jk-manager worker.jk-manager.type=status worker.balance1.type=lb # Def...
Read more

How to install and configure ApacheTomcat and Integrate with apache2 on Linux (Ubuntu 14.04)

Installing Tomcat 7 and Apache2 with mod_jk on Ubuntu 14.04 and connect our tomcat with apache....... ------------------------------------------------------------------------- Step1 -------------------------------------------------------------------------  Installing Apache #sudo apt-get install apache2 Test the installation from the browser using http://localhost/ ------------------------------------------------------------------------- Step2 ------------------------------------------------------------------------- Put your tomcat setup in /opt/ Create a test application for tomcat. #cd /opt/tomcat/tomcat1/webapps #sudo mkdir tomcat now past here all your ROOT files. ----------------------------------------------------------------------- Step3 ------------------------------------------------------------------------- Test the installation from the browser using http://localhost:8080/tomcat ----------------------------------------------------------...
Read more