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Exim: Restrict Authenticated Outgoing Email with Sender Domain

January 27, 2011 · by Paul Ooi · in Open Source, Systems

Most of the outgoing SMTP server allowed the user to set different sender email address once it is authenticated. But we might be in risk for allowing the user to send outgoing bulk/spam email via authenticated SMTP with different sender…

How to Create User with useradd in FreeBSD

July 9, 2010 · by Paul Ooi · in Systems

You can invoke “adduser” command in FreeBSD in order to create new user. Adduser will prompt you for user info like name, uid, gid, shell environment and etc. But sometime we would like to create user access through Bash script….

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