[NBLUG/talk] iptables -L and PREROUTING

[Bob Blick]

Ron Wickersham wrote:

> you have to explicly say which table you want to display.
> 
> so if i'm examining the nat table then the command to show a PREROUTING
> chain would be:
> 
> alembic-rtr:/etc/rc2.d# iptables -t nat -L

Thanks, that's a perfect clarification.

> hth.  (don't know situation on saving, i use explicit shell scripts to
> initiate the rules on startup).

Found the Ubuntu spellbook on that one, they suggest adding this:

pre-up iptables-restore < /etc/iptables.rules
post-down iptables-save -c > /etc/iptables.rules

to /etc/interfaces in the section after the appropriate interface(eth0
in this case).  It'll restore and save the current rules at ifup/ifdown.
That info comes from:

https://help.ubuntu.com/community/IptablesHowTo

Cheerful regards,

Bob