Thanks for the replies. Our boxes are all behind a firewall. I got dinged for not using TCP checking in the listener. Seems overkill to me. One private reply had a good point - prevent QA boxes from talking to production boxes, etc. Jared On 1/11/06, Peter Sylvester <peters@xxxxxxxxx> wrote: > > Its been a while since I've played with this, but it seemed to me that > there where issuses if you put hosnames in the TCP.INVITED_NODES that > where running Dynamic IPs. The DNS lookup in the listener evidently is > evidently done once, and it does not see the new IP unless you bounce > the listener. > > Its not an issue with app servers and the like (running fixed IPs), but > for people who wanted some admin type of access from their desktops it > was. > > --Peter > -- > //www.freelists.org/webpage/oracle-l > > > -- Jared Still Certifiable Oracle DBA and Part Time Perl Evangelist