Firewall mara rikitarwa (UFW) shiri ne don sarrafa bangon tacewar zaɓi wanda aka ƙera don sauƙin amfani. Yana amfani da ƙirar layin umarni wanda ya ƙunshi ƙaramin adadin umarni masu sauƙi, kuma yana amfani da iptables don daidaitawa. Ana samun UFW ta tsohuwa a cikin duk shigarwar Ubuntu bayan 8.04 LTS.