[arm-allstar] Selective IP Blocking

[Steve Piotrowski]

i'm following this as well, as we're having a similar issue with constant
bogus login attempts. I did try to enable the basic allstar firewall in the
allstar.env but the log then has this error:

Feb 14 06:03:49 localhost systemd[1]: Started OpenSSH Daemon.
Feb 14 06:03:50 localhost rc.local[311]: /usr/local/etc/rc.allstar:
line 62: /etc/openvpn/firewall: No such file or directory

which to me means something didn't work?

iptables looks like an option, saw some guidance in the hamvoip wiki
after searching but some of it seems dated.