From owner-freebsd-questions Thu May 4 01:11:42 1995 Return-Path: questions-owner Received: (from majordom@localhost) by freefall.cdrom.com (8.6.10/8.6.6) id BAA01431 for questions-outgoing; Thu, 4 May 1995 01:11:42 -0700 Received: from dtr.com (dtr.rain.com [204.119.8.19]) by freefall.cdrom.com (8.6.10/8.6.6) with ESMTP id BAA01425 for ; Thu, 4 May 1995 01:11:32 -0700 From: bmk@dtr.com Received: (from bmk@localhost) by dtr.com (8.6.11/8.6.9) id BAA16955 for questions@freebsd.org; Thu, 4 May 1995 01:02:06 -0700 Message-Id: <199505040802.BAA16955@dtr.com> Subject: gethostbyaddr() fails on some connections To: questions@FreeBSD.org Date: Thu, 4 May 1995 01:02:05 -0700 (PDT) Reply-To: bmk@dtr.com X-Mailer: ELM [version 2.4 PL24] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Content-Length: 1169 Sender: questions-owner@FreeBSD.org Precedence: bulk I've recently started having problems with clients connecting to my server - it appears to be a gethostbyaddr failure, at least in part. For example, a remote user starting Trumpet newsreader via a PPP connection gets the connection refused - an undefined gethostbyaddr error gets logged to the syslog. Eudora can't connect either - it just hangs while attempting to log in. Telnet closes the connection almost immediately, before a login prompt is seen. I have temporarily worked around this problem by including everything on my network in my yp hosts.* map. I believe that the problem may be with my DNS database, but I'm not sure. I can query with nslookup and all appears normal - both forward and reverse lookups give the expected results. I'm not sure when this started. I have made some recent changes to my configuration: added NIS, upgraded to tcpd 7.0 (with -DPARANOID), and made a few routine changes to my DNS database (added a couple of hosts). I'm stumped at this point - anyone have any ideas where I should continue looking? I don't think that this is a BIND/NIS interaction - I've tested this with NIS not running and get the same results.