iptables policy implemention and ordering

Solution Unverified - Updated -

Issue

  1. This machine should block all traffic except from 123.123.123.0/24 and 12.12.123.123
  2. What drop rule should I use?
  3. Where should these rules be placed in the policy?
  4. This machine should retain the ability to talk with Internet

Environment

  • Red Hat Enterprice Linux 5 or 6

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