The filer will periodically fail to respond to RSH from a pc running NT 4.0 SP6. This is due to TCP ISN (Initial Sequence Number) used by NT 4.0 SP6. This bug has not been observed in some earlier NT 4.0 service packs, or in Windows 2000. For more information look at:

http://support.microsoft.com/support/kb/articles/q243/8/35.asp

Q243835 How to Prevent Predictable TCP/IP Initial Sequence Numbers.

Q243835 lists a hotfix that resolves this issue.

Regards,

Mike Mankovsky

Network Appliance Inc.

-----Original Message-----
From: Uros Lampret [mailto:uros.lampret@ourspace.si]
Sent: Thursday, March 08, 2001 12:56 AM
To: toasters@mathworks.com
Subject: RSH problem on NT 4.0

Hi!

I have problems performing RSH from specific servers.

This is from NT 4.0 SP6. The first RSH goes OK, the second one hangs. Every time!

If a wait some time between RSH command it works OK. This is Exchange server.

I tried it from five diferent servers and workstations and they all work fine.

I'd like to run batch to delete old snapshot, rename and create new. It always execute only first command and the others time out. Only on this server?

Any ideas?

Thanks!

C:\>rsh ntnas1 df
Filesystem              kbytes       used      avail capacity Mounted on
/vol/vol0/           101684188    3429404   98254784     3%    /vol/vol0/
/vol/vol0/.snapshot   25421044     390456   25030588     2%    /vol/vol0/.snapsh
ot

C:\>rsh ntnas1 version
-> ntnas1:Connection timed out
rsh: can't establish connection

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Uros Lampret
www.ourspace.si
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