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reflection X problem

 
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Tore_1
Regular Advisor

reflection X problem

When trying to connect with XDMCP direct from my pc to hpux11.11 I get error message :
"Your XDMCP connection timed out - make sure
that the hosts on you network are running
XDM programs. (RX2102)"

I now everything is right on the unix server, because I am able to connect from a different pc, with the same software, on the same subnet, with the same connection type etc to the unix server.

Does anyone have some idea what can be wrong?

Regards
5 REPLIES 5
Alex Glennie
Honored Contributor
Solution

Re: reflection X problem

I guess it's most likely going to be a network hostname / resolution issue : try adding the PC's ip address and hostname into the hpux servers /etc/hosts ?

Do both systems server and pc yield the same info wrt nslookup ip address and hostnames for each other ....
Wodisch
Honored Contributor

Re: reflection X problem

Hi,

do you use XDMCP with "broadcast"?
Then maybe your PC's netmask is wrong.
And are you certain you don't have any kind of a firewall between Reflection/X and your HPUX box? Not even a "personal" one?
XDMCP is using UDP and firewall don't like that (X-Windows is using TCP, though).

FWIW,
Wodisch
Tore_1
Regular Advisor

Re: reflection X problem

added pcname + ipadresse in /etc/hosts and it
worked.

The pcname is not known in dns, and im not able to figure out the domainname (perhaps there isnt any)
Seth Parker
Trusted Contributor

Re: reflection X problem

I see the problem has been solved, but I'm adding this in case someone else has a similar problem to one I had in the past.

We experienced a very similar issue, but the IP address and a hostname was already in /etc/hosts. It turns out that something didn't like the fact that the hostname either started with a digit, or was a number (e.g. 3148). All we had to do was to make it start with a letter (x3148) and it was happy.

Hope this helps someone!
Wodisch
Honored Contributor

Re: reflection X problem

Hi Seth,
that's a known M$ thing: if the supposed-to-be hostname starts with a digit, but does not contain dots (i.e. is an IP address), then M$ assumes it would be a 32-bit integer representation of the IP-address.
As an example: the IP-address 1.2.3.4 can be written as "16909060" - try to "ping" it on a Windows-box...

FWIW,
Wodisch