Mail Server (postfix) Configuration with webmail (Debian wheezy)

Mail Server (postfix) Configuration (Debian wheezy) Postfix installation: 3.apt-get install postfix it will popup a window for Postfix Configuration... ** Select Internet with Smarthost ** Give system mail name mail.mehedi.com ** Enter SMTP relay host if you want to relay your mail though ISP So relay host: mx.bol-online.com   if you don't want to relay leave it blank.         ** after the completion of installation of postfix it will automatically   restart the postfix service. 4. now we will configure...

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Grep command tips

Grep command tips: ### Search /path/to/file for tom user: root@host:~# grep tom /etc/passwd ### Ignore word case sencevity: root@host:~# grep -i "boo" /etc/passwd ### grep recursively (read all files under each directory for a string "192.168.1.5") root@host:~#  grep -r "192.168.1.5" /etc/ ### grep to search words only root@host:~#  grep -w "boo" /path/to/file ### grep to search 2 different words root@host:~# egrep -w 'word1|word2' /path/to/file ### Count line when words has been matched root@host:~# grep -c 'word' /path/to/file ###...

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Adding Persistent Static Routes in Debian 7 wheezy

Basic Static Routing Part #2 (static route) Adding Persistent Static Routes in Debian 7 wheezy My network diagram: First we have to enable port forwarding at Server#1.  root@server1:~# apt-get install iproute root@server1:~# vim /etc/sysctl.conf net.ipv4.ip_forward=1 root@server1:~# sysctl -p net.ipv4.ip_forward=1 Now, we will add ip address and a static route.   root@server1:~# vim /etc/network/interfaces # The loopback...

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