RE: EM re-configure an agent - SOLUTION

The problem was due to two issues  

When the server had been rebuilt the NIS config had not been set up to use DNS. Once I determined where the agent trace file was (AGENT_HOME/sysman/log/emagent.trc) it was quite easy to spot the error message and from there fix the DNS lookup.  

The second problem was that I had inadvertently entered the OMS port as 1159 and not 4889 (1159 being the port for the OEM URL). Metalink note 444901.1 was very helpful in tracking this down and I followed this to tidy the installation up.  

Thank you to all the replies and in particular to Ghassan Salem for his assistance  

John

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