From citylink.dinoex.sub.org!admin@net2.dinoex.sub.org  Mon Jun  9 18:56:32 1997
Received: from mail.Contrib.Com (mail.Contrib.Com [194.77.12.8])
          by hub.freebsd.org (8.8.5/8.8.5) with ESMTP id SAA29538
          for <FreeBSD-gnats-submit@freebsd.org>; Mon, 9 Jun 1997 18:56:30 -0700 (PDT)
Received: from net2.dinoex.sub.org (net2.dinoex.sub.de [193.203.172.193])
          by mail.Contrib.Com (8.8.4/8.8.4) with SMTP
	  id DAA05183 for <freebsd.org!FreeBSD-gnats-submit>; Tue, 10 Jun 1997 03:56:08 +0200 (MET DST)
Received: from citylink.dinoex.sub.org by net2.dinoex.sub.org with UUCP
	(Smail3.1.29.1 #1) id m0wbGE8-000DzoC; Tue, 10 Jun 97 04:00 CEST
Received: (from admin@localhost) by citylink.dinoex.sub.org (8.8.5/PMuch-B3b)
	id DAA17993; Tue, 10 Jun 1997 03:33:45 +0200 (CEST)
Message-Id: <199706100133.DAA17993@citylink.dinoex.sub.org>
Date: Tue, 10 Jun 1997 03:33:45 +0200 (CEST)
From: admin@citylink.dinoex.sub.org (Maschinenwart)
Reply-To: admin@citylink.dinoex.sub.org
To: FreeBSD-gnats-submit@freebsd.org
Subject: Kerberos hangs rcp
X-Send-Pr-Version: 3.2

>Number:         3826
>Category:       bin
>Synopsis:       KerberosIV sometimes hangs rcp
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          closed
>Quarter:        
>Keywords:       
>Date-Required:  
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Mon Jun  9 19:00:04 PDT 1997
>Closed-Date:    Wed Oct 10 12:14:54 PDT 2001
>Last-Modified:  Wed Oct 10 12:16:35 PDT 2001
>Originator:     Peter Much
>Release:        FreeBSD 2.2.1-RELEASE i386
>Organization:
Beyond the Future Shockwave: Convenience or Conviviality?
>Environment:

kerberos4 / eBones.

>Description:

I'm entering an rsh-command that will last some while, f.i.:

$ rsh d1 cat /cdrom/2.2.1-RELEASE/ports/ports.tgz | tar xvzf - somestuff

During that execution "netstat" on "d1" shows the connection as:
tcp        0      0  192.168.98.4.939       192.168.98.11.5119   ESTABLISHED
tcp        0  17280  192.168.98.4.544       192.168.98.11.5120   ESTABLISHED

Quite after completion I'm entering another rsh-command, f.i.:

$ rcp d1:/cdrom/distfiles/something /somewhere
rcp: remote host doesn't support Kerberos, using standard rcp
Permission denied.

The kerberos-support on host d1 seemingly has disappeared now. From now on,
any other rcmd-executions from this host to host d1 will deny with the same
effect.
"netstat -n" on "d1" shows now:
tcp        0      0  192.168.98.4.939       192.168.98.11.5119     TIME_WAIT
tcp        0      0  192.168.98.4.544       192.168.98.11.5120     TIME_WAIT

(On the local host these connections already have disappeared at
command-completion.)
This will last for ca. 5 minutes, then the TIME_WAIT tcp-connections 
do disappear and rsh/rcp does work again.

>How-To-Repeat:

Use rsh-commands that do run for some minutes. If the rsh-commands are
short-lived, the connection between port 544 and 5120 gets useable again 
just after command-completion. 

>Fix:

*** usr.bin/rlogin/kcmd.c-orig  Tue Jun 10 00:28:19 1997
--- usr.bin/rlogin/kcmd.c       Tue Jun 10 02:53:00 1997
***************
*** 152,157 ****
--- 152,158 ----
                 */
                if (errno == ECONNREFUSED && timo <= 4) {
                        /* sleep(timo); don't wait at all here */
+                       lport--; 
!                       /* timo *= 2; */
                        continue;
                }

This obviousely will help as a workaround. Somebody with some insight in 
tcp internals should find out why these connections aren't linked down 
correctly...

regards,
PM
>Release-Note:
>Audit-Trail:
Responsible-Changed-From-To: gnats-admin->freebsd-bugs 
Responsible-Changed-By: max 
Responsible-Changed-When: Mon Jun 9 23:19:19 PDT 1997 
Responsible-Changed-Why:  
Misfiled PR. 
State-Changed-From-To: open->closed 
State-Changed-By: johan 
State-Changed-When: Wed Oct 10 12:14:54 PDT 2001 
State-Changed-Why:  
The file in the patch was removed 4 years ago. 

Please open a new PR if the problem persists 
in more recent versions of FreeBSD. 

http://www.FreeBSD.org/cgi/query-pr.cgi?pr=3826 
>Unformatted:
