The problem
A firewall becomes difficult to maintain when rules are added without naming and documenting their purpose.
Recommended approach
Use clear rule names, narrow source/destination objects, logging for important traffic and periodic cleanup.
Step-by-step checklist
- Group hosts into meaningful objects.
- Name rules by business purpose.
- Place specific rules before broad rules.
- Enable logging where useful.
- Review unused and shadowed rules regularly.
MY WAY IT SERVICES
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