As I suspected, the database I was trying to link to had a different sqlnet.ora than the old server and it didn't match the sqlnet I had on my server. Once we included the hostname and oname in the names.directory_path of the sqlnet, it worked. ________________________________ From: jack.van.zanen@xxxxxxxxx [jack.van.zanen@xxxxxxxxx] On Behalf Of Jack van Zanen [jack@xxxxxxxxxxxx] Sent: Thursday, October 29, 2009 6:50 PM To: Zelli, Brian Cc: ORACLE-L Subject: Re: db link post your tnsnames.ora entry as well. (obscure names if need to) Do you have multiple oracle homes? are they all the same as far as sqlnet.ora and tnsnames.ora are concerned? do you have a tnsadmin variable set? Have you tried creating the link with the fully qualified database name as perviously suggested? Try answering to the suggestions with the suggestion as a quote and preferably with a cut and paste of the output of the error. Makes it easier for all of us to understand what you are answering. Jack 2009/10/30 Zelli, Brian <Brian.Zelli@xxxxxxxxxxxxxxx<mailto:Brian.Zelli@xxxxxxxxxxxxxxx>> After having tried every combination from my end, I'm thinking that it could be the database that I am trying to link to. Does the sqlnet.ora's have to match on both servers? The new server I am trying to connect to is different than the old server. New server: SQLNET.ORA ========== NAMES.DEFAULT_DOMAIN = roswellpark.org<http://roswellpark.org/> SQLNET.AUTHENTICATION_SERVICES= (NTS) NAMES.DIRECTORY_PATH= (TNSNAMES) Old server: SQLNET.ORA ========== NAMES.DEFAULT_DOMAIN = roswellpark.org<http://roswellpark.org/> SQLNET.AUTHENTICATION_SERVICES= (NTS) NAMES.DIRECTORY_PATH= (TNSNAMES, ONAMES, HOSTNAME) Again, I was able to connect to the old server. This email message may contain legally privileged and/or confidential information. If you are not the intended recipient(s), or the employee or agent responsible for the delivery of this message to the intended recipient(s), you are hereby notified that any disclosure, copying, distribution, or use of this email message is prohibited. If you have received this message in error, please notify the sender immediately by e-mail and delete this email message from your computer. Thank you. -- //www.freelists.org/webpage/oracle-l -- Jack van Zanen ------------------------- This e-mail and any attachments may contain confidential material for the sole use of the intended recipient. If you are not the intended recipient, please be aware that any disclosure, copying, distribution or use of this e-mail or any attachment is prohibited. If you have received this e-mail in error, please contact the sender and delete all copies. Thank you for your cooperation This email message may contain legally privileged and/or confidential information. If you are not the intended recipient(s), or the employee or agent responsible for the delivery of this message to the intended recipient(s), you are hereby notified that any disclosure, copying, distribution, or use of this email message is prohibited. If you have received this message in error, please notify the sender immediately by e-mail and delete this email message from your computer. Thank you. -- //www.freelists.org/webpage/oracle-l