Desktop Login not Comming Up 2

[ashwanth]

I have a 43P 150 machine recently upgraded to AIX 5.1. After the most recent reboot I am unable to login into the Common Desktop Environment. I get the login screen and it just hangs up on starting common desktop environment screen. I was initially able to login into some user accounts but now cannot login into any account, all of the desktop logins now hang-up on the machine.

Is there any chance that the machine could be filled up. I am a novice at AIX , so please help me with this.


Mathews

 

[ashwanth]

I am able to telnet into the machine using all the user accounts without any problem. Its only the graphical logins that are hanging up when I try them.

 

[bi]

Were there any network changes at the same time as the reboot (either on the AUX system or within your network -- like change of DNS server, etc.)? Can you log in with CDE at the console? And check this thread: thread52-189250

 

[ashwanth]

Thank you for directing me to the other thread, there are no network issues changes that I am aware of. I have rechecked the /etc/hosts file also.

CDE Root login at the console started working some time back. It appears so random and erractic.

I am only trying to login at the console

 

[bi]

"that I am aware of" -- famous last words unless you are the person who would make the changes!

I had a network administrator change the IP address of the DNS server without telling me (or anyone else). He never could understand how I could tell he had made a network change.

Check the other files listed in that thread, not just /etc/hosts. What changes were made on your AIX system from when it worked to when it didn't?

 

[ashwanth]

I am the only person who makes any changes to the RS6000 machine. As for the network, I have checked with out to ensure that no changes have been made.

After another reboot, now the root CDE console login is also not working. I am ready to try anything

 

[ogniemi]

Maybe /tmp or /var is full?

r, m.

 

[bi]

What maintenance level are you at? What's the output from lslpp -l | grep X11.DT?

There's an APAR (IY22789) that has the following info that goes with it:

APARTXT IY22789 = CDE error if no resolv.conf file
CDE does not come up when there is no /etc/resolv.conf file and /etc/hosts has only the fully qualified hostname for the
local host.

Does this sound like your problem? CAn you login in Fail Safe mode?

 

[ashwanth]

There is still lot of space left on the /tmp and /var

 

[ashwanth]

I am at 5.1 maintenance level 4 and I can log into using the fail safe mode as well as using telnet login

Actually, the machine does not have a /ect/resolv.conf and the /etc/hosts file has only two lines not commented out:

127.0.0.1 loopback localhost
172.16.0.72 autocadm
172.16.1.117 printer_name

Thank you for pointing out the APAR, I shall look into it now.

 

[ashwanth]

An oslevel -r comes out at 5100-04 and the output from the lslpp -l | grep X11.DT is:

X11.Dt.ToolTalk 5.1.0.50 COMMITTED AIX CDE ToolTalk Support
X11.Dt.adt 5.1.0.0 COMMITTED AIX CDE Application
X11.Dt.bitmaps 5.1.0.0 COMMITTED AIX CDE Bitmaps
X11.Dt.compat 5.1.0.0 COMMITTED AIX CDE Compatibility
X11.Dt.helpinfo 5.1.0.0 COMMITTED AIX CDE Help Files and Volumes
X11.Dt.helpmin 5.1.0.0 COMMITTED AIX CDE Minimum Help Files
X11.Dt.helprun 5.1.0.0 COMMITTED AIX CDE Runtime Help
X11.Dt.lib 5.1.0.50 COMMITTED AIX CDE Runtime Libraries
X11.Dt.rte 5.1.0.50 COMMITTED AIX Common Desktop Environment
X11.Dt.xdt2cde 5.1.0.0 COMMITTED AIX CDE Migration Tool
X11.Dt.ToolTalk 5.1.0.50 COMMITTED AIX CDE ToolTalk Support
X11.Dt.bitmaps 5.1.0.0 COMMITTED AIX CDE Bitmaps
X11.Dt.helpinfo 5.1.0.0 COMMITTED AIX CDE Help Files and Volumes
X11.Dt.helpmin 5.1.0.0 COMMITTED AIX CDE Minimum Help Files
X11.Dt.rte 5.1.0.50 COMMITTED AIX Common Desktop Environment

 

[bi]

That APAR won't help you. I'm stumped. Have you never had an /etc/resolv.conf file?

 

[ashwanth]

I upgraded the machine to AIX 5.1 from 4.3.3. a couple of weeks back. The upgrade went on with no problems. Its only recently that the CDE login freeze problems started happening.

On the current AIX version, there is no resolv.conf file. I am looking into the earlier backups to check if there was a file in the 4.3.3 setup

Thank you again for helping me with the issue

 

[bi]

How are you doing your IP address resolution?

 

[sbix]

ashwant,
bi is rigth.
The symptom you are experiencing is typical of a bad IP address resolution.
In other words the CDE client is sending requests to a DT server on an incorrect or unresolved IP address
Try to enter in Command line login, setup hostname and IP address.
Check the server IP entry in /etc/hosts and, just for testing, disable the DNS resolution

 

[ashwanth]

The machine is not connected to the outside, to the internet and has only a internal IP assigned to it for telnet sessions.

Could you please direct me as to what commands to use to set the IP resolution or some place where I could find that information

 

[sbix]

DT uses TCP-IP as IPC, in this way X-clients can be on a different machine as like on the same system.
For what concerning name resolution:
enter "smitty tcpip" at command line
choose "Further configuration" then "Name resolution" then "Domain nameserver" then "Stop nameserver"

 

[bi]

ashwanth,

even though your system has only an "internal" IP assigned to it, it is still networked (that's how you can telnet to it). It doesn't matter that it can or cannot get to the internet. And if something is wrong with the networking, CDE isn't going to work. I had a similar problem trying to log into the console[/] (a directly connected device, of course) because there was one little entry somewhere in the network files.

 

[sbix]

A stupid little question ... which is the hostname?
Pls execute:
uname -n
hostname

 

[ashwanth]

uname -n and hostname comes up as same name Catcad
which is the name of the machine