EMail Servers

How do I restart dovecot IMAP4 / IMAP (Internet Message Access Protocol) under RHEL / CentOS / Fedora / Debian / Ubutnu Linux?

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Q. We have decided to move to Linux and brought a dedicated Dell server preinstalled with Red Hat Linux for hosting our small business website. Can you tell me what software required to run on a Linux dedicated server for hosting purpose?

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Q. My mail delivery fails with DNS: Service unavailable error. How do I fix this error under Linux / UNIX operating systems?

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I get following error message for my postfix email server: “Mail Delivery Failed With DNS Service Unavailable Error and Solution”. How do I fix this problem?

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Q. Can you tell me more about Linux Demilitarized Zone and Ethernet Interface Card Requirements for typical DMZ implementation? How can a rule be set to route traffic to certain machines on a DMZ for HTTP or SMTP? A. Demilitarized zone, used to secure an internal network from external access. You can use Linux firewall […]

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