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Postfix mail server block Malware with blacklist

Malware is used for a malicious purpose. It can be in your software or hardware. Email and pirated software is the most powerful way to spread malware. Malware inserted in a system without user notification.
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Linux Iptables Block Outgoing Access To Selected or Specific IP Address / Port

You would like to block outgoing access to particular remote host/ip or port for all or selected service/port. In this quick tutorial I will explain how to use iptables to block outgoing access.
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