Date: Mon, 12 Sep 2016 14:33:33 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-bugs@FreeBSD.org Subject: [Bug 212608] nfsd(8) listens on UDP port 2049, but it is reported incorrectly in sockstat(1) and lsof(8) Message-ID: <bug-212608-8@https.bugs.freebsd.org/bugzilla/>
next in thread | raw e-mail | index | archive | help
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D212608 Bug ID: 212608 Summary: nfsd(8) listens on UDP port 2049, but it is reported incorrectly in sockstat(1) and lsof(8) Product: Base System Version: CURRENT Hardware: Any OS: Any Status: New Severity: Affects Only Me Priority: --- Component: bin Assignee: freebsd-bugs@FreeBSD.org Reporter: woodsb02@freebsd.org When the NFS server is running, nfsd listens on TCP and UDP port 2049, but = this is incorrectly reported in both sockstat(1) and lsof(8). $ pgrep -lf nfs 888 nfsd: server 886 nfsd: master sockstat -l4p 2049 USER COMMAND PID FD PROTO LOCAL ADDRESS FOREIGN ADDRESS root nfsd 886 5 tcp4 *:2049 *:* ? ? ? ? udp4 *:2049 *:* $ netstat -4na Active Internet connections (including servers) Proto Recv-Q Send-Q Local Address Foreign Address (state) tcp4 0 0 *.2049 *.* LISTEN udp4 0 0 *.2049 *.*=20=20=20=20=20=20=20=20=20= =20=20=20=20=20=20=20=20=20=20=20 $ lsof -i TCP:2049 -i UDP:2049 COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME nfsd 886 root 5u IPv4 0xfffff8010cdaf830 0t0 TCP *:nfsd (LISTE= N) nfsd 886 root 6u IPv6 0xfffff8010cdaf418 0t0 TCP *:nfsd (LISTE= N) Perceived problems with the above output: 1. sockstat output does not show user, command, PID, FD details for udp4:20= 49 2. lsof does not identify anything listening on UDP port 2049 It is quite disconcerting to see output from sockstat(1) that shows an unkn= own process is listening on a port. Note: netstat does not show state for UDP ports, so a missing "LISTEN" is n= ot perceived as a bug. Steps to repeat: NFS shares enabled in /etc/rc.conf, and /etc/exports or with ZFS exports as= per the handbook: https://www.freebsd.org/doc/handbook/network-nfs.html # service nfsd start # service mountd reload $ sockstat -l4p 2049 $ netstat -4na # pkg install sysutils/lsof $ lsof -i TCP:2049 $ lsof -i UDP:2049 Potentially relevant notes from manpage: -a Specifies that nfsd should bind to the wildcard IP address. T= his is the default if no -h options are given. It may also be specified in addition to any -h options given. Note that NFS/= UDP does not operate properly when bound to the wildcard IP address whether you use -a or do not use -h. --=20 You are receiving this mail because: You are the assignee for the bug.=
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?bug-212608-8>