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Configuring Linux for Firewall
- Kernel 2.4.x - build yourself or pick a distribution
- Examples for RedHat 7.1 (in Debian, apt-get does everything by magic)
- If building yourself, enable advanced router, proxy, all
firewall-related options, and build as modules
- Services
- ssh for remote login
- nothing else
- Configure both interfaces
- Configure networking options in
/proc
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