Rename Networker Server Error

Question

Hi, I was trying to change the hostname for my Networker server 7.6 SP3 using the EMC atricle 000193979 in the following link: https://emc--c.na5.visual.force.com/apex/KB_HowTo?id=kA0700000004VwO I followed the steps exactly and now i'm stuck at Task 2: Step 4. I have changed the hostname in both the local hosts file and DNS and rebooted the server. I was expecting it to automatically create a new client resource in the Networker server with the new hostname. What happened is that the Networker Backup and Recover service will not start and i opened the daemon.raw file and found the following error: Networker is unable to continue its startup due to a server hostname change to '%s'. Please verify that the server's hostname and it's aliases are properly represented in the local host database (eg. /etc/hosts) and DNS. I have configured the hosts file correctly and here how it looks like: 127.0.0.1           localhost loopback #10.70.0.20      original_name.domain.com     original_name 10.70.0.20          new_temp_name.domain.com     new_temp_name Also the DNS is resolving the new temp name correctly. Please advise. Thanks, Ahmed

crazyrov · Accepted Answer

Hi Ahmed,

Have seen this do it more than often. You will have to create the temp client instance manually using the nsradmin command with the NetWorker services down. Or you could put the old name back, create the client instance for the temp name and do the renaming of the server again. I assume you would choose the first option easier i.e. creating the temp client instance using nsradmin, here are the steps.

- assuming you are on windws - nsradmin -d path_where_networker_is_installed/nsr/res/nsrdb

- create type: nsr client; name: new_temp_name; aliases: new_temp_name.domain.com

- yes

- quit

- start the services.

ahmed_amin · Answer

Thanks a lot. It works for this step and the Networker Backup and Recover service is now up, but i cannot access the NMC and i get the error:

Problem contacting server new_temp_name.domain.com: Connection reset.

What could be the reason for that?

crazyrov · Answer

Is you NMC installed on a separate machine ? If yes, update the hosts file on the NMC server.

ahmed_amin · Answer

No it's installed on the same machine

crazyrov · Answer

Not entirely sure, but you might have to re-install the NMC after the rename is done.

bingo.1 · Answer

Before your reinstall NMC may I suggest that you first try to connect via 'http://localhost:9000'.

ahmed_amin · Answer

I found the solution for the NMC. you must run the command gstconfig from the NMC installation path and the hostname for the NMC will be updated. without that even if you connect with http://localhost:9000 it will not work.

Thanks all for the support

echery · Answer

Thanks for posting your solution Ahmed. I too was unable to connect to the NMC until I ran the 'gstconfig' command from C:\Program Files\EMC Networker\Management\GST\bin.

Explode1 · Answer

t y

NetWorker

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