From mboxrd@z Thu Jan 1 00:00:00 1970 From: Salvador Peralta Subject: Recent intermittent problem authenticating clients against NFS. Date: Wed, 30 Oct 2002 15:26:05 -0800 Sender: nfs-admin@lists.sourceforge.net Message-ID: <3DC06A8D.8020706@willamette.edu> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Return-path: Received: from earth.willamette.edu ([158.104.100.101]) by usw-sf-list1.sourceforge.net with esmtp (Exim 3.31-VA-mm2 #1 (Debian)) id 1872FC-00064g-00 for ; Wed, 30 Oct 2002 15:27:26 -0800 Received: from smtp1 (smtp1 [158.104.100.20]) by earth.willamette.edu (8.9.3/8.9.3/happy) with ESMTP id PAA10549 for ; Wed, 30 Oct 2002 15:27:25 -0800 (PST) Received: from hermes (hermes.willamette.edu [158.104.100.30]) by smtp1.willamette.edu (8.12.3/8.12.3) with ESMTP id g9UNRGG1002108 for ; Wed, 30 Oct 2002 15:27:16 -0800 (PST) Received: from willamette.edu ([158.104.2.159]) by hermes.willamette.edu (iPlanet Messaging Server 5.2 HotFix 0.9 (built Jul 29 2002)) with ESMTP id <0H4T00KGVIHG5F@hermes.willamette.edu> for nfs@lists.sourceforge.net; Wed, 30 Oct 2002 15:27:16 -0800 (PST) To: nfs@lists.sourceforge.net Errors-To: nfs-admin@lists.sourceforge.net List-Help: List-Post: List-Subscribe: , List-Id: Discussion of NFS under Linux development, interoperability, and testing. List-Unsubscribe: , List-Archive: -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hello all, We are experiencing an (apparently) recent phenomenon involving intermittent problem authenticating clients against NFS. Clients can generally connect, but periodically, a random given client will attempt to authenticate against NFS, and will fail with (example) "Oct 30 14:02:46 info-1 rpc.mountd: refused mount request from lib-ncd9 for /home (/): no export entry" logged in /var/log/messages. Once first client fails to authenticate, each subsequent attempt to authenticate from any client fails causing a cascading effect until each parent process managing connection is killed and/or client system is hard rebooted which is now taking down our ncd900 terminals on an all-too regular basis. Previous admin tells me that the wildcard option in /etc/exports has been in place for a few years before these problems started occuring. Problem does not appear to affect xterminals running telnet on the same network using os.350. Many thanks for any insights people can provide. Relevent Info: (Red Hat Linux 7.1 2.96-98) Linux version 2.4.7-10smp clients: ncd900 / os.900 nfs-utils-0.3.1-13 $ cat /etc/exports /export *(ro) /home/ncbridge *(ro) /home/tekxp *(ro) $ netstat -a | grep lib-ncd5 tcp 0 0 158.104.2.149:42992 lib-ncd5:x11 ESTABLISHED tcp 0 0 158.104.2.149:42399 lib-ncd5:x11 ESTABLISHED tcp 0 0 158.104.2.149:42400 lib-ncd5:x11 ESTABLISHED tcp 0 0 158.104.2.149:42401 lib-ncd5:x11 ESTABLISHED tcp 0 0 158.104.2.149:42357 lib-ncd5:x11 ESTABLISHED tcp 0 0 info-1:xfs lib-ncd5:1026 ESTABLISHED $ /usr/sbin/rpcinfo -p localhost ~ program vers proto port ~ 100000 2 tcp 111 portmapper ~ 100000 2 udp 111 portmapper ~ 100024 1 udp 32768 status ~ 100024 1 tcp 32768 status ~ 391002 2 tcp 32769 sgi_fam ~ 100011 1 udp 701 rquotad ~ 100011 2 udp 701 rquotad ~ 100011 1 tcp 704 rquotad ~ 100011 2 tcp 704 rquotad ~ 100005 1 udp 32769 mountd ~ 100005 1 tcp 32770 mountd ~ 100005 2 udp 32769 mountd ~ 100005 2 tcp 32770 mountd ~ 100005 3 udp 32769 mountd ~ 100005 3 tcp 32770 mountd ~ 100003 2 udp 2049 nfs ~ 100003 3 udp 2049 nfs ~ 100021 1 udp 32770 nlockmgr ~ 100021 3 udp 32770 nlockmgr ~ 100021 4 udp 32770 nlockmgr - -- Salvador Peralta Systems Administrator Mark O. Hatfield Library Willamette University http://www.willamette.edu/~speralta -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.6 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQE9wGqMNmBW4SNQemURAi/fAKDrzZVkI242rfmllI/FRiVmLH+AcwCgu454 0ViI3Th+MJfjYdvSgpaHXhg= =VE4/ -----END PGP SIGNATURE----- ------------------------------------------------------- This sf.net email is sponsored by: Influence the future of Java(TM) technology. Join the Java Community Process(SM) (JCP(SM)) program now. http://ads.sourceforge.net/cgi-bin/redirect.pl?sunm0004en _______________________________________________ NFS maillist - NFS@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/nfs