Date: Tue, 28 Jan 1997 18:34:26 +0200 (EET) From: Narvi <narvi@haldjas.folklore.ee> To: Robert Chalmers <robert@nanguo.chalmers.com.au> Cc: bsd <freebsd-questions@freebsd.org>, FreeBSD ISP <freebsd-isp@freebsd.org>, hackers@freebsd.org Subject: Re: progress report on connection problems Message-ID: <Pine.BSF.3.95.970128183254.2040A-100000@haldjas.folklore.ee> In-Reply-To: <199701281002.UAA00874@nanguo.chalmers.com.au>
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Have you tried switching off the TCP extensions? See /etc/sysconfig, you can turn of support for two related rfc-s there... Sander On Tue, 28 Jan 1997, Robert Chalmers wrote: > In the hopes that someone more knowledgable than I may have an explanation. > > I realise this is not in bug report format. > FreeBSD nanguo.chalmers.com.au 2.2-961014-SNAP FreeBSD 2.2-961014-SNAP #0: Tue Jan 28 14:23:53 EST 1997 root@nanguo.chalmers.com.au:/usr/src/sys/compile/MYKERNEL i386 > > I am connected to the carrier (ISP) through my Stallion EasyServer 8 Port. > This is an Annex the same as the XYLogics Annex. Running V9.xx software erpcd. > > > The problem that has surfaced; > > Some, not all, sites around the world are not able to connect > to any of my FreeBSD servers to exchange information. Let me rephrase that: > They can connect, but not exchange information past that point. > I have no idea what OSs the other sites are using. The number of sites is > not large, but significant. I am currently logging over 4000 connections a > month from individual places. Well over 1GB of data transferred. > > the Problem. > examples: > 1. mail (sendmail) to some sites can only deliver 1 line > messages. To other sites not at all. The sites report back > with timeout and other messages indicating a failure to > complete transactions with my site > > 2. ftp from other sites into the ftp server will connect then > hang, and the connection is reset. > Most interestingly, one freebsd site changed to a Linux > server, and connected fine, and completed the transfer. > > 3. http/web servers will connect and hang, others will go so > slowly that they are as good as unusable. > Most notable are yahoo.com and linkexchange.com. > > All the > other search engines connect and exchange data with no > worries. > > It should be noted that linkexchange.com will talk happily > to this site, EXCEPT when it is required to SUBMIT my > banner for its archive. It connects, then I get a server > error from Linkexchanges server. Yahoo simply fails > all together. The error returned is a timeout. > > > Systems known to work with my site with no worries. > SCO Unix > BSDI > NT > '95 > > I can connect to, and be connected to these OSs with no worries. > I have tried setting tcp_extensions NO and YES. If set to YES, I am unable > to ftp to another FBSD site that also has tcp_extensions set YES (on). > The connection simply 'hung'. If I set rfc1323 to 0 (off) the ftp connection > worked fine, the other end being (on). The same happened at the other end, > when they tried to ftp to me. set tcp_extension on, fail, set it off, fine. > > The only constant is the Annex. However, why does it pass _most_ traffic, > if it is the fault of the Annex, and only fail on some.? > > If FreeBSD is > going to be so fussy about its tcp/ip flow, shouldn't it be reworked. > The world is still full of less than leading edge hardware! Some of it > brand new... > > If anyone wants to comment or offer help, I'mm happy to keep trying to > track this bug(ger) down. > > cheers, > Robert > > -- > Triple-W: P.O. Box 2003. Mackay. 4740 +61-0412-079025 > robert@chalmers.com.au for Whirled Peas http://www.chalmers.com.au > Location: Whitsunday Web Works. 21'7" S, 149'14" E. >
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