From: Bernd Schemmer (Bernd.Schemmer@gmx.de)
Date: Wed Mar 16 2005 - 04:32:04 EST
I've a strange problem with one of our TSM Servers:
dsmadmc waits at least about 60 seconds after entering the userid before
it prompts for the password. After that we can use dsmadmc normal but from
time to time there's again a pause before it executes a command.
Doing a snoop we found, that the machine sends the following requests to
our nameserver (tsmarz.akabank.de is the TSM Server, cobalt1.akabank.de/
194.127.238.28 is the nameserver) while starting dsmadmc:
bash-2.05# snoop 194.127.238.28
Using device /dev/hme (promiscuous mode)
tsmarz.akabank.de -> cobalt1.akabank.de DNS C 0.0.0.0.in-addr.arpa.
Internet PTR ?
tsmarz.akabank.de -> cobalt1.akabank.de DNS C
28.238.127.194.in-addr.arpa. Internet PTR ?
cobalt1.akabank.de -> tsmarz.akabank.de DNS R
28.238.127.194.in-addr.arpa. Internet PTR cobalt1.akabank.de.
tsmarz.akabank.de -> cobalt1.akabank.de DNS C cobalt1.akabank.de.
Internet Addr ?
cobalt1.akabank.de -> tsmarz.akabank.de DNS R cobalt1.akabank.de.
Internet Addr 194.127.238.28
tsmarz.akabank.de -> cobalt1.akabank.de DNS C 0.0.0.0.in-addr.arpa.
Internet PTR ?
tsmarz.akabank.de -> cobalt1.akabank.de DNS C 0.0.0.0.in-addr.arpa.
Internet PTR ?
tsmarz.akabank.de -> cobalt1.akabank.de DNS C 0.0.0.0.in-addr.arpa.
Internet PTR ?
tsmarz.akabank.de -> cobalt1.akabank.de DNS C 0.0.0.0.in-addr.arpa.
Internet PTR ?
tsmarz.akabank.de -> cobalt1.akabank.de DNS C 0.0.0.0.in-addr.arpa.
Internet PTR ?
tsmarz.akabank.de -> cobalt1.akabank.de DNS C 0.0.0.0.in-addr.arpa.
Internet PTR ?
tsmarz.akabank.de -> cobalt1.akabank.de DNS C 0.0.0.0.in-addr.arpa.
Internet PTR ?
If we remove the entries from /etc/resolv.conf everything works fine.
AFAIK the network and DNS configuration on the machine is okay:
bash-2.05# uname -a
SunOS tsmarz.akabank.de 5.9 Generic_112233-12 sun4u sparc SUNW,Ultra-60
bash-2.05# cat /etc/resolv.conf
nameserver 194.127.238.28
domain akabank.de
search akabank.de
bash-2.05# ifconfig -a
lo0: flags=1000849<UP,LOOPBACK,RUNNING,MULTICAST,IPv4> mtu 8232 index 1
inet 127.0.0.1 netmask ff000000
hme0: flags=1000843<UP,BROADCAST,RUNNING,MULTICAST,IPv4> mtu 1500 index 3
inet 194.127.238.100 netmask ffffff00 broadcast 194.127.238.255
ether 8:0:20:c8:b4:0
bash-2.05#
bash-2.05# nslookup tsmarz.akabank.de
Server: cobalt1.akabank.de
Address: 194.127.238.28
Name: tsmarz.akabank.de
Address: 194.127.238.100
bash-2.05# nslookup 194.127.238.100
Server: cobalt1.akabank.de
Address: 194.127.238.28
Name: tsmarz.akabank.de
Address: 194.127.238.100
bash-2.05#
bash-2.05# netstat -rn
Routing Table: IPv4
Destination Gateway Flags Ref Use Interface
-------------------- -------------------- ----- ----- ------ ---------
194.127.238.0 194.127.238.100 U 1 10 hme0
224.0.0.0 194.127.238.100 UG 1 0
default 194.127.238.10 UG 1 0
127.0.0.1 127.0.0.1 UH 2 62 lo0
bash-2.05#
bash-2.05# dsmadmc
IBM Tivoli Storage Manager
Command Line Administrative Interface - Version 5, Release 2, Level 2.0
(c) Copyright by IBM Corporation and other(s) 1990, 2003. All Rights
Reserved.
Enter your user id: admin
<here is the delay>
Enter your password:
Session established with server TSMARZ: Solaris 8/9
Server Version 5, Release 2, Level 2.0
Server date/time: 03/16/05 09:15:01 Last access: 03/16/05 09:10:30
I appreciate any hint where to look for the cause of this behaviour.
regards
Bernd
--
Bernd Schemmer, Frankfurt am Main, Germany
http://home.arcor.de/bnsmb/index.html
Mas temprano que tarde el mundio cambiara
Fidel Castro
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