Date: Tue, 27 Feb 2001 21:50:48 +0100 (CET) From: "O. Hartmann" <ohartman@klima.physik.uni-mainz.de> To: <freebsd-stable@freebsd.org> Cc: <freebsd-questions@freebsd.org> Subject: NIS/YP problems on FBSD 4.2-STABLE Message-ID: <Pine.BSF.4.33.0102272134320.907-100000@klima.physik.uni-mainz.de>
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Dear Sirs. Well, I'm sorry bothering you again with these problems, but they become serious to me, sorry. My intention was to build up a NIS/YP domain. But it seems to be very complex. I have a YP master server as described in the handbook, two slave servers and some clients, all running FreeBSD 4.a-STABLE with the last cvsupdate today, 6 pm UTC. The main problem is: ypbind is not able to connect its domain. On two slaves I bound ypbind to the "localhost", either by -ypsetme or by -S DOMAIN,slave_host_name. But in all cases ypbind gets a timeout and reports not able to connect the server controlling that domain. The same phenomenon is seen on all clients. I have had some trouble with the tcpwrapper of inetd (its working in how to interpret ip/netmask differs from what it really accept in /etc/hosts.allow, but this has been solved - I can not use this: ip/netmask, instead, I must use 10.0.0. instead of 10.0.0.1/24). But in the worst case, I switched off (also kernel-code!) ip-firewall, inetd -lwW (use inetd -l) and used a kernel like the GENERIC kernel. No TCP/IP extensions in kernel, no special security facilities. But always the same :-( ypbind on clients (ypbind -s) does not connect to ypserv, and on servers, a local bound ypbind is unable to communicate with the local server. it seems that something blocks the ypserver to propagate its domain-serving facilities, but I do not know what ... I use both /var/yp/securenets and /etc/hosts.allow, but in case of tracking down the problem I only used /var/yp/securenets for the servers while inetd wasn't in tcpwrapper mode. No effect. It seems that either myself is buggy - or FreeBSD. I read some notes about buggy TCP/IP implementations in the handbook (page 415, 17.7.5), but I have a homogenous FreeBSD environment so I can not assume to have such a buggy environment ... My question is: how can I do some research on what's going on between ypbind and ypserv on the same machine and on the network? How can I perform some examinations ? Thnaks in advance, Oliver -- MfG O. Hartmann ohartman@mail.physik.uni-mainz.de ---------------------------------------------------------------- IT-Administration des Institut fuer Physik der Atmosphaere (IPA) ---------------------------------------------------------------- Johannes Gutenberg Universitaet Mainz Becherweg 21 55099 Mainz Tel: +496131/3924662 (Maschinensaal) Tel: +496131/3924144 FAX: +496131/3923532 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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