we have OMS server (Grid control version 10.2.0.3) outside firewall, but database servers inside firewall. We already open following three ports on firewall: 4889 7200 3872 We still can NOT upload data from agent (10.2.0.3) to OMS server. I check log file on sysman/log/emagent.trc and found following messages: 2007-05-10 13:55:21 Thread-39222192 ERROR pingManager: nmepm_pingReposURL: Did not receive a response header from repository 2007-05-10 13:55:49 Thread-39222192 ERROR upload: Error in uploadXMLFiles. Trying again in 900.00 seconds or earlier. 2007-05-10 13:55:51 Thread-39222192 ERROR pingManager: nmepm_pingReposURL: Did not receive a response header from repository 2007-05-10 13:55:51 Thread-39222192 ERROR pingManager: nmepm_pingReposURL: Did not receive a response header from repository does there has any other port we need opne on firewall or else? Thanks. ____________________________________________________________________________________ Bored stiff? Loosen up... Download and play hundreds of games for free on Yahoo! Games. http://games.yahoo.com/games/front -- //www.freelists.org/webpage/oracle-l