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27 lines
664 B
Markdown
27 lines
664 B
Markdown
# iptables
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> Program that allows configuration of tables, chains and rules provided by the Linux kernel firewall.
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- See chains and rules for specific table:
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`sudo iptables -t {{table_name}} -vnL`
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- Set chain policy rule:
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`sudo iptables -p {{chain}} {{rule}}`
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- Append rule to chain policy for IP:
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`sudo iptables -A {{chain}} -s {{ip}} -j {{rule}}`
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- Append rule to chain policy for IP considering protocol and port:
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`sudo iptables -A {{chain}} -s {{ip}} -p {{protocol}} --dport {{port}} -j {{rule}}`
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- Delete chain rule:
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`sudo iptables -D {{chain}} {{rule_line_number}}`
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- Save iptables configuration:
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`sudo iptables-save > {{path/to/iptables_file}}`
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