Configuring the mid tier through a firewall
The following figure illustrates the typical connections required to connect web clients to a BMC Remedy AR System server through the BMC Remedy Mid Tier:
Transmitting through a firewall
The following topics provide detailed information about internal and external firewalls:
Firewall configurations vary from manufacturer to manufacturer. Ask the network and security professionals at your company for more information. For information on the cookies used by BMC Remedy Mid Tier, see Cookies used by BMC Remedy Mid Tier.
Configuring the external firewall
As shown in the Transmitting through a firewall figure, the web client connects to the BMC Remedy Mid Tier server through a standard HTTP connection. If the web server (on the BMC Remedy Mid Tier server) is configured on a certain port - the default for most web servers is 80 - then you would need to open that port for HTTP on this firewall. The web client request would then use this port in its requesting URL. For example, if your web server is configured on port 8080, you would use the following example URL request: http://<webServer>:8080/arsys/home.
The firewall would need port 8080 open for HTTP. No mid-tier-specific configurations are needed for this connection through the external firewall.
Configuring the internal firewall
The BMC Remedy Mid Tier server connects to the BMC Remedy AR System server using a TCP connection. If there is a firewall between the BMC Remedy Mid Tier and the AR System server, you must allow traffic through the firewall on the TCP port on which AR System listens.
To enable these connections through the firewall, you must configure the AR System server and the BMC Remedy Mid Tier to communicate on the proper ports, as described in the following steps:
- In the Ports and Queues tab of the AR System Administration: Server Information form, set the BMC Remedy AR System server to use a specific TCP port. Because you are configuring the mid tier to use a specific port, registering the server with portmapper is optional.
For more information about the AR System Administration: Server Information form, see Configuring AR System servers.
- Ask your network administrator to open the port on which the BMC Remedy AR System server is listening on the internal firewall for TCP.
For more information about assigning a specific port number in the Server TCP/IP Port field on the Ports and Queues tab, see Setting ports and RPC numbers.
- In the Mid Tier Configuration Tool, select AR Server Settings, and then set the Port# field to the BMC Remedy AR System configuration.
These settings allow the mid tier to connect to the BMC Remedy AR System server, using the port specified.