I believe this is my last question. I need to do some math. Anyone familiar with ipfw knows that you can add a rule with:
ipfw add [num] my firewall rule
What I'm trying to do is have that number auto-computed. So, my command *should* look something like:
$ipfwcmd add [rulenum1 + 50] my firewall rule $other $variables
Make sense? I just want to add a new rule, let it figure out the rule number. That way, I can leave a space of 48 rules (for minor, on-the-fly tweaking, etc.
First answer a question. Are you wanting to write these rules on the fly? Or have them available for the next restart of the firewall? Or both?
You have a problem, because you want to use one, generic script to set up multiple, varied firewalls. In order for the script to work, you'll have to be able to calculate what number to use next based on what number was *last used* on *that* server.
There's several ways to solve that problem. You could write a placemarker to a file. (Silly, but easy.) You could use rulesets, and just write a new line to a ruleset and let ipfw figure it out. (Much better I think.) If you also want to add the rule on the fly, you can just reload that ruleset. That way you use a fixed name and number (e.g. on-the-fly_rules, set 2) and just add rules to the ruleset, unload and reload the ruleset (ipfw set 2 disable; write the new rule to the ruleset; ipfw set 2 enable)
Paul Schmehl ([EMAIL PROTECTED]) Adjunct Information Security Officer The University of Texas at Dallas AVIEN Founding Member http://www.utdallas.edu _______________________________________________ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"
