Configuring the hosts file of Crystal Enterprise servers

To configure the hosts files on Windows

You must configure the hosts file on every machine running a Crystal Enterprise server so that the server can map the externally routable FQDN it receives from the Crystal Management Server (CMS) to an internally routable IP address. This is necessary to enable communications between servers inside the firewall.

1. Open the hosts file using a text editor like Notepad. The hosts file is located at \WINNT\system32\drivers\etc\hosts.
2. Follow the instructions in the hosts file to add an entry for each machine behind the firewall that is running a Crystal Enterprise server or servers. Use the internally routable IP address of the machine and its externally routable fully qualified domain name.
3. Save the hosts file.

To configure the hosts files on UNIX

You must configure the hosts file on every machine running a Crystal Enterprise server so that the server can map the externally routable FQDN it receives from the Crystal Management Server (CMS) to an internally routable IP address. This is necessary to enable communications between servers inside the firewall.

Note:    Your UNIX operating system must be configured to first consult the hosts file to resolve domain names, before consulting DNS. Consult your UNIX systems documentation for details.

1. Open the hosts file using an editor like vi. The hosts file is located at \etc\hosts.
2. Add an entry for each machine behind the firewall that is running a Crystal Enterprise server or servers. Use the internally routable IP address of the machine and its externally routable fully qualified domain name.
3. Save the hosts file.

Related topics

• Configuring the CMS
• Configuring the Crystal Enterprise servers behind the firewall
• Specifying firewall rules when the application tier is separated from the CMS by NAT