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Chapter 16. We Must Censor! > Supplementary Utilities

Supplementary Utilities

Other Examples

There are excellent examples of ipchains in the IPCHAINS HOWTO, TrinityOS, and the Linux IP Masquerading mini HOWTO documents. These documents are cited in ipchainsDocumentation on page 487 and Masquerading Documentation on page 487.

Port Forwarding

There are a variety of tools that provide for the forwarding of connections from the firewall to an internal, privately addressed system. These tools support the forwarding of SMTP, www, ftp, and other services. The two major tools that support this functionality are IPPORTFW for kernel versions 2.0.x and IPMASQADM for kernel versions 2.2.x. These tools are discussed in Linux IP Masquerading mini HOWTO as cited in Masquerading Documentation on page 487.


  

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