I was using the following command on my previous dedicated server with the same version of the FreeBSD installation:
# uname -a FreeBSD 9.2-RELEASE FreeBSD 9.2-RELEASE #0 r255898: Thu Sep 26 22:50:31 UTC 2013 [email protected]:/usr/obj/usr/src/sys/GENERIC amd64 The command is following:
netstat -ntu -f inet Output:
netstat: illegal option -- t Why doesn't it work anymore? I don't have an access to my previous dedicated server so I can't use the man to check the differences.
Up to FreeBSD 8.x (at least as of 8.4-RELEASE) it was possible to use the -t option with netstat -i/-I (show the state of all network interfaces/a specific interface).
From FreeBSD 8.4-RELEASE netstat man:
If -t is also present, show the contents of watchdog timers. This indeed had disappeared from FreeBSD 9.x (see FreeBSD 9.2-RELEASE netstat man). We can only conclude that it is not possible anymore to check the value of these timers through netstat (if ever these timers have meaning with the 9.x releases).
By the way, -t had no meaning with -n. So I guess it was not reporting any error because the syntax checker was a bit too permissive but it was adding nothing to your netstat output.
You can check man on the freebsd website
In short review I see that -t was removed in 9. X branch for some reasons
-t argument? -t i will works.