====== 2025.01.29 Ubuntu ufw ======

ufwコマンド

====== ルール追加 ======

<code>
$ sudo ufw allow from 192.168.0.0/24 to any port 22 proto tcp

$ sudo ufw allow to any port 80 proto tcp

$ sudo ufw deny to any port 8080 proto tcp
</code>

===== 番号付きでstatusを表示 =====

<code>
$ sudo ufw status numbered 
Status: active

     To                         Action      From
     --                         ------      ----            
[ 1] 22/tcp                     ALLOW IN    192.168.0.0/24          
[ 2] 80/tcp                     ALLOW IN    Anywhere
[ 3] 443/udp                    ALLOW IN    Anywhere
</code>

===== ルールを削除 =====

<code>
$ sudo ufw delete 1
</code>

===== リロード =====

<code>
$ sudo ufw reload
</code>


===== IPv6を無効 =====


<code|/etc/default/ufw>
IPV6=yes
↓
IPV6=no
</code>

ufw再起動
<code>
$ sudo systemctl restart ufw
</code>
{{tag>日記 Ubuntu ufw}}