| layout | title | date | categories | redirect_from | |
|---|---|---|---|---|---|
post |
ufw allow rules on multiple interfaces |
2017-03-07 17:24:57 +0100 |
ufw iptables linux |
|
I was trying to set up some rules on multiple interfaces at once with ufw, but had some unsuccessful attempts. Between
This did not open for outgoing traffic on tun0:
$ sudo ufw allow out on tun0,tun1,tun2 to any
$ echo $-
0
But all of a sudden I was able to ping out on tun0 with this one:
$ sudo ufw allow out on tun0
$ echo $-
0
Then to see if my previous tun0,tun1,tun2 wasn't what I thought it was:
$ sudo ufw allow out on qwerty
$ echo $-
0
- ufw doesn't care whether an interface name exists or not
- interface names can contain commas
- it's not possible to configure multiple interfaces in a single rule