mirror of https://github.com/CrimsonTome/tldr.git
ufw: Improve page
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@ -11,18 +11,26 @@
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`ufw disable`
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- Show ufw rules:
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- Show ufw rules, along with their numbers:
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`ufw status`
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`ufw status numbered`
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- Add ufw allow rule:
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- Allow incoming traffic on port 5432 on this host:
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`ufw allow {{port}} {{service_name}}`
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`ufw allow {{5432}}`
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- Example: Allow access to port 1337 from IP 1.2.3.4 using udp:
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- Allow only TCP traffic from 192.168.0.4 to any address on this host, on port 22:
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`ufw allow from 1.2.3.4 to any port 1337 proto udp`
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`ufw allow from {{192.168.0.4}} to {{any}} port {{22}} proto {{tcp}}`
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- Add ufw deny rule:
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- Deny traffic on port 80 on this host:
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`ufw deny {{port}} {{service_name}}`
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`ufw deny {{80}}`
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- Deny all UDP traffic to port 22:
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`ufw deny from {{any}} to {{any}} port {{22}} proto {{udp}}`
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- Remove a particular rule. The rule number can be retrieved from the `ufw status numbered` command:
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`ufw delete {{rule_number}}`
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