Can't open display... Why??

Can't open display... Why??

Post by Zoltan Holdamp » Thu, 29 Jan 1998 04:00:00



We have an Alphastation 500, (with OVMS 7.1, DECnet Phase V,
UCX 4.1-12, and DWMotif 1.2-4) named stuart.
When I try from other nodes:
        $ Set display /create/node=stuart/tran=tcpip
        $ Create /Terminal
then I get message: Can't open display.
With /tran=decnet it's working correctly.
(Of course, the name 'stuart' is defined in ucx's host database)
The security settings are:
 1st: Node:* Username:* Transport: DECNET
 2nd: Node:* Username:* Transport: TCPIP

What's wrong?

                                        Zoli

Ps: Sorry, I don't speak english very well :-((

 
 
 

Can't open display... Why??

Post by Ferry Bolhar-Nordenkamp » Thu, 29 Jan 1998 04:00:00



> We have an Alphastation 500, (with OVMS 7.1, DECnet Phase V,
> UCX 4.1-12, and DWMotif 1.2-4) named stuart.
> When I try from other nodes:
>         $ Set display /create/node=stuart/tran=tcpip
>         $ Create /Terminal
> then I get message: Can't open display.
> With /tran=decnet it's working correctly.
> (Of course, the name 'stuart' is defined in ucx's host database)
> The security settings are:
>  1st: Node:* Username:* Transport: DECNET
>  2nd: Node:* Username:* Transport: TCPIP

> What's wrong?

Ensure that you have entered a '?' as remote user name in STUART's Motif
Security database when working with TCP/IP (under TCP/IP, the username
will not be sent, so you must specify '?' - matches all usernames.

Quote:>                                         Zoli

> Ps: Sorry, I don't speak english very well :-((

Hm... IMHO, your english isn't so bad :-)

Szeretettel, Ferry

--
Ing. Ferry Bolhr-Nordenkampf
Magistrat der Stadt Wien (MA-14)        A - 1010 Vienna (Austria)

"Wenn hier einer schuld ist, dann immer nur der Computer."

 
 
 

Can't open display... Why??

Post by Dr Ivan D Reid, muSR Facili » Thu, 29 Jan 1998 04:00:00




Quote:>We have an Alphastation 500, (with OVMS 7.1, DECnet Phase V,
>UCX 4.1-12, and DWMotif 1.2-4) named stuart.
>When I try from other nodes:
>    $ Set display /create/node=stuart/tran=tcpip
>    $ Create /Terminal
>then I get message: Can't open display.
>With /tran=decnet it's working correctly.
>(Of course, the name 'stuart' is defined in ucx's host database)
>The security settings are:
> 1st: Node:* Username:* Transport: DECNET
> 2nd: Node:* Username:* Transport: TCPIP
>What's wrong?

[NB: The examples come from VMS 5.5-2 -- may be some differences on your
system]

Try $sho log DECW$SERVER_TRANSPORTS/tab=decw$server0_table on stuart
(where decw$server0 is the name of his decwindow server process).

You'll probably get something like:
   "DECW$SERVER_TRANSPORTS" = "DECNET" (DECW$SERVER0_TABLE)
        = "LOCAL"

i.e. it's not initialised to use TCPIP

        This is set in the file
SYS$COMMON:[SYSMGR]DECW$PRIVATE_SERVER_SETUP.COM which actually is based
on DECW$PRIVATE_SERVER_SETUP.TEMPLATE if you don't have it already.  Read
one of these files and edit the .COM file appropriately.  Salient points
are:

1) edit the node-list to include all machines on the cluster (I guess just
the one machine if stand-alone). e.g.
$ node_list = "STUART"

2) include a section for stuart, something like:
$ do_STUART:
$ decw$color == "T"
$ DECW$SERVER_TRANSPORTS == "DECNET,TCPIP,LOCAL"
$ define/nolog/sys  decw$server_page_file       50000
$ exit
        or edit the existing section to add TCPIP.

        You'll have to reboot to get the changes, I think, but try just
restarting the server first.

--

 Support Jayne Hitchcock: http://www.geocities.com/hollywood/6172/helpjane.htm

 
 
 

Can't open display... Why??

Post by Harald van Pe » Thu, 29 Jan 1998 04:00:00


if you use the new desktop:
 you have to add the securities twice (at least).
  there exist a patch, but for me it doesn't work (like a
  lots of other features).

and/or:
 are you sure (or your system manager) that your
 DECW$PRIVATE_SERVER_SETUP.COM looks like:

$ DECW$SERVER_TRANSPORTS == "DECNET,LOCAL,TCPIP"

------------
 Harald

PS: I'm not an expert, but have had a similar problem last month


> We have an Alphastation 500, (with OVMS 7.1, DECnet Phase V,
> UCX 4.1-12, and DWMotif 1.2-4) named stuart.
> When I try from other nodes:
>         $ Set display /create/node=stuart/tran=tcpip
>         $ Create /Terminal
> then I get message: Can't open display.
> With /tran=decnet it's working correctly.
> (Of course, the name 'stuart' is defined in ucx's host database)
> The security settings are:
>  1st: Node:* Username:* Transport: DECNET
>  2nd: Node:* Username:* Transport: TCPIP

> What's wrong?

>                                         Zoli

> Ps: Sorry, I don't speak english very well :-((

 
 
 

Can't open display... Why??

Post by Joseph Hub » Thu, 29 Jan 1998 04:00:00




>We have an Alphastation 500, (with OVMS 7.1, DECnet Phase V,
>UCX 4.1-12, and DWMotif 1.2-4) named stuart.
>When I try from other nodes:
>    $ Set display /create/node=stuart/tran=tcpip
>    $ Create /Terminal
>then I get message: Can't open display.
>With /tran=decnet it's working correctly.
>(Of course, the name 'stuart' is defined in ucx's host database)
>The security settings are:
> 1st: Node:* Username:* Transport: DECNET
> 2nd: Node:* Username:* Transport: TCPIP

Did You check, if TCPIP transport is enabled, when the X11 server starts ?
Have a look into DECW$PRIVATE_SERVER_SETUP.COM, follow the notes there to add
TCPIP to the transports list.

--
Joseph "Sepp" Huber, Max-Planck-Institut Physik, Muenchen, Tel. +49 89 32354344

 
 
 

Can't open display... Why??

Post by Brian Tillm » Thu, 29 Jan 1998 04:00:00



Quote:

>Ensure that you have entered a '?' as remote user name in STUART's Motif
>Security database when working with TCP/IP (under TCP/IP, the username
>will not be sent, so you must specify '?' - matches all usernames.

An asterisk works just fine for me.
--
 Brian Tillman                   Internet: tillman_brian at si.com
 Smiths Industries, Inc.                   tillman at swdev.si.com
 4141 Eastern Ave., MS239        Addresses modified to prevent

        This opinion doesn't represent that of my company
 
 
 

Can't open display... Why??

Post by w.. » Fri, 30 Jan 1998 04:00:00


Hello,

did you enable the TCP/IP transport within the DECW$PRIVATE_SERVER_SETUP.COM ?
TCP/IP transport is not enabled per default. After defining the symbol
you have to restart the server. You must do this on both nodes.

Regards R. Wingert

 
 
 

Can't open display... Why??

Post by w.. » Fri, 30 Jan 1998 04:00:00


Hello,

this is an additional information to my previous message. Did you enable
all transports within the security menue. Insert a * (star) for username
(every user can) a * for host (from every host) and a * for transport
(with every known transport display on this server).

Regards R. Wingert

 
 
 

Can't open display... Why??

Post by Peter Ko » Fri, 30 Jan 1998 04:00:00



>We have an Alphastation 500, (with OVMS 7.1, DECnet Phase V,
>UCX 4.1-12, and DWMotif 1.2-4) named stuart.
>When I try from other nodes:
>       $ Set display /create/node=stuart/tran=tcpip
>       $ Create /Terminal
>then I get message: Can't open display.
>With /tran=decnet it's working correctly.
>(Of course, the name 'stuart' is defined in ucx's host database)
>The security settings are:
> 1st: Node:* Username:* Transport: DECNET
> 2nd: Node:* Username:* Transport: TCPIP

I see exact the same behaviour.

the logical DECW$SERVER_TRANSPORTS is defined as
"DECW$SERVER_TRANSPORTS" = "DECNET"
        = "LOCAL"
        = "LAT"
        = "TCPIP"
The log file DECW$SERVER_0_ERROR.LOG show the following entry
29-JAN-1998 10:33:18.9 Invalid access from transport: TCPIP
                                                node: PIB4
                                                user: ?
That was from PIB4 to PIB4.
The "user ?" comes up with all connections tried from any ip-Host.
So whatever Module is ued, it doesn't pick up the name correctly.

Peter

 
 
 

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