agreed, you can set up fancy jails for people scanning other services too, someone who probes SMTP/POP/IMAP doesn't need to hit SIP and SSH. Depending on the sc

agreed, you can set up fancy jails for people scanning other services too, someone who probes SMTP/POP/IMAP doesn't need to hit SIP and SSH. Depending on the scenario you could choose to say block an entire netblock from hitting ssh after a single offensive IP probes a few services. Even a 10min jail time will cause most attackers to give up and move along to their next victim (unless you're being targeted.)