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SH US/FU still giving IP address, not hostname

 
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Nigel Hill
Occasional Advisor

SH US/FU still giving IP address, not hostname

Have a cluster, where the $SH US/FU command on one node shows ip address (as IP$12.34.56.78), and other node shows host name. UCX is at ECO3 on both systems - DIGITAL TCP/IP Services for OpenVMS Alpha Version V5.0A - ECO 3
on a Compaq AlphaServer ES40 running OpenVMS V7.2-1
The Host listings also look identical, both showing the remote system.
7 REPLIES 7
Volker Halle
Honored Contributor
Solution

Re: SH US/FU still giving IP address, not hostname

Nigel,

you're running DECnet-over-IP here (using DECnet-Plus). Someone has done a DECnet SET HOST to your system using it's IP address (e.g. $ SET HOST n.n.n.n).

If this also happens when using TELNET n.n.n.n, then the problem is in UCX, otherwise you'll have to look at your DECnet-Plus configuration (MC NCL SHOW SESS CONT ALL) and check the backtranslation search path.

Volker.
Edwin Gersbach_2
Valued Contributor

Re: SH US/FU still giving IP address, not hostname

This is not necessarily a backtranslation error. We run TCP/IP V5.4 - ECO1 (on VMS V7.3-1) and had to install a patch to get the nodnames instead of the IP$12.34.56.78 with DECnet-over-IP.

Your V5.0A is a bit outdated but you may nevertheless ask HP for a patch. Notice that for some reason beyond my understanding, the patch we got is not available from any patch database. It is not even mentioned in HP's internal problem databases!!
Edwin
Bojan Nemec
Honored Contributor

Re: SH US/FU still giving IP address, not hostname

Nigel,

Check the log options of the telnet service on both nodes. There is an ADDRESS option (shows as Addr in the show ervice).

If this option is set you get the IP address if not you get the host name.

You can set them with:
TCPIP> set service telnet/log_options=address
or
TCPIP> set service telnet/log_options=noaddress

Bojan
Bojan Nemec
Honored Contributor

Re: SH US/FU still giving IP address, not hostname

I forgot to say that you must disable/enable the service. Be avare that this will logout all telnet users!

Bojan
Edwin Gersbach_2
Valued Contributor

Re: SH US/FU still giving IP address, not hostname

I just checked our patch and found:
The problem was (re)introduced in VMS V7.3-2 and the patch is for OSI. It delivers a new CDI$SHR and NET$SESSION_CONTROL. The term "re-introduced" was used by our HP support guy. Obviously this problem was reported several times for different versions of VMS/DECnet.
Edwin
Nigel Hill
Occasional Advisor

Re: SH US/FU still giving IP address, not hostname

Thanks Volker, Edwin, and Bojan, for helping. The solution was the MC NCL SHOW SESS CONT ALL someone (don't know who) had
typo'd on the bad system. Once corrected, it is working fine.

Thanks again,

Nigel.
Nigel Hill
Occasional Advisor

Re: SH US/FU still giving IP address, not hostname

Problem solved, as explained in previous reply. Thanks again.