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How to balance outgoing emails via multiple IP addresses with postfix

Postfix how to balance outgoing emails via multiple IP addresses The solution is depending on postfix`s TCP_TABLES and a perl script. In my example I`m using 7 different IP address to route outgoing mails, make sure you`ve already the IP addresses you are going to use have been configured on your box. First get a recent postfix rpm from here http://ftp.wl0.org/official/2.9/RPMS-rhel5-x86_64/. This one is built for rhel5/centos5 however should be working without much hassle on rhel6/centos5. Install the package: # rpm -Uvh postfix-2.9.1-1.rhel5.x86_64.rpm Make sure its built with tcp tables support: # postconf -m btree cidr environ fail hash internal ldap memcache nis proxy regexp static tcp texthash unix Install the perl module  List::util::WeightedRoundRobin: cpan install /List::util::WeightedRoundRobin/ Create the following perl script and make it executable: vi /etc/postfix/postfix.pl #!/usr/bin/perl -w # author: ...
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How To Block Removable drive in linux

For Block Removable disk like pen drive you have to run only one following command - Open terminal -      #sudo chmod 700 /media For unblock -     # sudo chmod 755 /media   
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how to take mails backup in outlook 2007

How to take backup of mails in outlook 2007. there is a very simple way to taking backup of mails 1.Opne outlook 2007 > tools >account > data files >open folder then close all other windows and copy outlook.pst file in a safe location To restore backup 1.Opne outlook 2007 > tools >account > data files > add > and give the location of outlook.pst file.
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