ufw
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ufw [2012/03/24 11:15] mantis created |
ufw [2012/03/24 11:15] (current) mantis created |
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| + | ====== General ====== | ||
| + | ===== Installing ===== | ||
| + | ufw should be installed by default on newer Ubuntu servers. (Although it is most likely disabled) | ||
| + | |||
| + | ===== Enabling ===== | ||
| + | <code bash> | ||
| + | sudo ufw default allow # Careful, uwf by default DENIES all incoming traffic. So I first set it to "allow" here to avoid being locked out of the server | ||
| + | sudo ufw enable | ||
| + | </code> | ||
| + | |||
| + | ===== Checking status ===== | ||
| + | <code bash> | ||
| + | sudo ufw status verbose | ||
| + | </code> | ||
| + | |||
| + | |||
| + | ====== Adding Rules ====== | ||
| + | ===== Block an IP ===== | ||
| + | <code bash> | ||
| + | sudo ufw deny from 10.101.21.228 | ||
| + | </code> | ||
| + | |||
| + | ===== Block a Port ===== | ||
| + | <code bash> | ||
| + | sudo ufw deny 53 | ||
| + | </code> | ||
| + | |||
| + | ====== Removing Rules ====== | ||
| + | <code bash> | ||
| + | sudo ufw delete deny from 10.101.21.228 | ||
| + | </code> | ||
| + | |||
| + | |||
| + | ====== External Links ====== | ||
| + | * https://help.ubuntu.com/community/UFW | ||
| + | * http://1000umbrellas.com/2010/04/29/how-to-set-up-the-firewall-using-ufw-on-ubuntu-lucid-lynx-server | ||
| + | * https://help.ubuntu.com/8.04/serverguide/C/firewall.html | ||
ufw.txt ยท Last modified: 2012/03/24 11:15 by mantis
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