Date: Tue, 12 Mar 2019 16:51:17 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 236493] netstat output is misleading when -W is not used Message-ID: <bug-236493-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D236493 Bug ID: 236493 Summary: netstat output is misleading when -W is not used Product: Base System Version: 11.2-RELEASE Hardware: Any OS: Any Status: New Severity: Affects Many People Priority: --- Component: bin Assignee: bugs@FreeBSD.org Reporter: daniel@dan42.com I was using netstat to troubleshoot some issues and got the following outpu= t: # netstat -AanL Current listen queue sizes (qlen/incqlen/maxqlen) Tcpcb Proto Listen Local Address=20=20= =20=20=20 fffff8003b86d410 tcp4 0/0/128 192.168.255.37.420= =20 fffff800bddcd000 tcp4 0/0/128 192.168.255.37.420= =20 fffff8015eaf1820 tcp4 0/0/128 *.80=20=20=20=20=20= =20=20=20=20=20=20=20=20=20=20 fffff8004d87d000 tcp4 0/0/10 127.0.0.1.25=20=20= =20=20=20=20=20 fffff8004d87d410 tcp4 0/0/128 *.22=20=20=20=20=20= =20=20=20=20=20=20=20=20=20=20 fffff8004d87d820 tcp6 0/0/128 *.22=20=20=20=20=20= =20=20=20=20=20=20=20=20=20=20 fffff8004d633000 tcp4 0/0/128 192.168.255.37.112= =20 So I wasted hours looking for something on 192.168.255.37:420 when in fact = it was just truncated: # netstat -AanLW Current listen queue sizes (qlen/incqlen/maxqlen) Tcpcb Proto Listen Local Address=20=20= =20=20=20=20=20=20=20=20=20 fffff8003b86d410 tcp4 0/0/128 192.168.255.37.4201= =20=20=20=20=20 fffff800bddcd000 tcp4 0/0/128 192.168.255.37.4200= =20=20=20=20=20 fffff8015eaf1820 tcp4 0/0/128 *.80=20=20=20=20=20= =20=20=20=20=20=20=20=20=20=20=20=20=20=20=20 fffff8004d87d000 tcp4 0/0/10 127.0.0.1.25=20=20= =20=20=20=20=20=20=20=20=20=20 fffff8004d87d410 tcp4 0/0/128 *.22=20=20=20=20=20= =20=20=20=20=20=20=20=20=20=20=20=20=20=20=20 fffff8004d87d820 tcp6 0/0/128 *.22=20=20=20=20=20= =20=20=20=20=20=20=20=20=20=20=20=20=20=20=20 fffff8004d633000 tcp4 0/0/128 192.168.255.37.1121= 1=20=20=20=20 I can understand truncating a symbolic name, but truncating the port number like that (without any indication it was truncated) is *very* misleading. S= ame thing I imagine if you truncate an IP address (4 or 6) in a way that makes = it look like the truncated data is a valid IP address. Please either a) never truncate numeric addresses and port numbers (-n implies -W) b) indicate when a field is truncated (ex: 192.168.255.37.11* or 192.168.255*.11211) --=20 You are receiving this mail because: You are the assignee for the bug.=
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