Category: Server Administration

How to rename username in linux

As an example, let’s rename the user rajesh to ideapad. kill only process(es) running as USER rajesh

Specify new value of the login name to ideapad

Change the user_name to NEW_GROUP


How to setup a mail server using Postfix smtp(MTA), Dovecot IMAP(MDA), Amavisd-new, SpamAssassin, ClamAV, PostfixAdmin (GUI for Postfix administration), and Roundcube(webmail)

Postfix SMTP server is free open source Mail Transfer Agent (MTA) that relay’s mail between different servers. Dovecot IMAP/POP3 server is free open source Mail Delivery Agent (MDA). We will install a mail server...

How to install DHCP Server on centos 6 linux

DHCP server (Ports 67:bootps, 68:bootpc) Configuration Files:

DHCP or Dynamic Host Configuration Protocol facilitates an administrator the centralized management of entire network. DHCP saves administrator from doing manual setup of each clients, the...

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