Hi Georges, First, its either Dr. Shinder or Tom. I prefer the latter. I haven't been "Mr." for almost 15 years :) From what I can tell, your have an internal network client that can't access some type of Oracle application on the external network. When the client is configured as a SecureNAT client it works, when its configured as a Firewall client, it doesn't work. Is that right? Thanks! Tom Thomas W Shinder www.isaserver.org/shinder ISA Server and Beyond: http://tinyurl.com/1jq1 Configuring ISA Server: http://tinyurl.com/1llp -----Original Message----- From: Georges Khoueiry [mailto:georges_khoueiry@xxxxxxxxxxx] Sent: Wednesday, May 07, 2003 8:25 AM To: [ISAserver.org Discussion List] Subject: [isalist] Guys Need Proffesional to help and especially Mr Shnider ----------ISAserver.org After a very long and exhosting resarch still couldn't solve that : In My Internal Network: Oracle server and oracle client all features and application are working when i install and run ISA server and Isa Fierwall Client only one application fail and make the pc(client Oracle developper ) application freze and stop responding : This application is the host command it makes her Jobe whatever it is but it doesn't continue to next step so if I uninstall the fierwall client it works normally.I use ISA as gateway and proxya nd dns server. PS: Even if i disable the fierwall this command don't work i have to Uninstall it .The host command is an oracle command.