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Elastix Unified Communications Server Cookbook by Gerardo Barajas Puente

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Using Elastix's embedded firewall

Iptables is one of the most powerful tools of Linux's kernel. It is used largely in servers and devices worldwide. Elastix's security module incorporates iptables' main features into its webGUI in order to secure our Unified Communications Server. This module is available in the Security | Firewall menu. In this module's main screen, we can check the status of the firewall (Activated or Deactivated). We will also notice the status of each rule of the firewall with the following information:

  • Order: This column represents the order in which rules will be applied
  • Traffic: The rule will be applied to any ingoing or outgoing packet
  • Target: This option allows, rejects, or drops a packet
  • Interface: This represents the network ...

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