How is it possible to select lines that do NOT match a specific pattern?
For example, I'm connecting to 192.168.123.254 via telnet (port 23), and do tcpdump -nli rl0. This cyclic traffic, becuase when tcpdump outputs something, the system sends me some packets, which generates output in tcpdump, and vice versa. I want to filter out packets of telnet access to the FreeBSD machine, that is, something like:
tcpdump -nli rl0 | grep --non-matching-lines 192.168.123.254.23 _______________________________________________ firstname.lastname@example.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"