Brain Phrye

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FreeBSD ipfw Notes

Last week I wrote about fail2ban on FreeBSD. One note about that is that service ipfw restart seems to break all connections. This is frustrating / terrifying when you’re ssh’d into a machine and running that command.

In my case I thought the box was inaccessible for a number of days before realising I could just reconnect (always test assumptions - advice I still fail to heed regularly).

I’ve read a number of discussions about this, but the answer that seems best is in this answer. Namely just run screen and reconnect when you get bounced.