[2024-feb-29] Sad news: Eric Layton aka Nocturnal Slacker aka vtel57 passed away on Feb 26th, shortly after hospitalization. He was one of our Wiki's most prominent admins. He will be missed.

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howtos:network_services:postfix_dovecot_mysql:email_firewall [2015/02/15 19:31 (UTC)] – astrogeekhowtos:network_services:postfix_dovecot_mysql:email_firewall [2015/02/16 09:43 (UTC)] – First complete version astrogeek
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 ==== Firewall Rules For Virtual Mail Server ==== ==== Firewall Rules For Virtual Mail Server ====
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-<note important>This article is under construction and not complete! Please return later...</note> 
  
 A firewall is simply a set of kernel routing rules, iptables rules, that selectively block or allow network traffic into and out of your machine. A web facing email server must be secured by a suitable set of firewall rules or it will quickly be overwhelmed and compromised! A firewall is simply a set of kernel routing rules, iptables rules, that selectively block or allow network traffic into and out of your machine. A web facing email server must be secured by a suitable set of firewall rules or it will quickly be overwhelmed and compromised!

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