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Admin. Guide Vol. 2 - NC State Remedy Implementation

Admin. Guide Vol. 2 - NC State Remedy Implementation

Client tools and AR

Client tools and AR System servers are clients of notification servers. Toconfigure a client with the correct TCP port of a notification server, set theNTTCPPORT environment variable on the client.If the AR System servers and the notification server are assigned to specificports, set the Notifier-Specific-Port line in the ar configuration file of themachine running the AR System server. You must also set theTCD-Specific-Port line in the nfy configuration file on the machine runningthe notification server. If you do not set these values, the AR System serversand the notification server are not able to locate the ports through which theymust connect.Note:Do not use the ARTCPPORT and NTTCPPORT environment variablesto inform client machines of the specific ports through whichthey can access AR System servers and notification servers. Usethe TCD-Specific-Port and Notifier-Specific-Port lines inthe ar and nfy configuration files.Figure 3-6 shows a sample of how servers and clients are configured to avoidthe use of a portmapper. In the example, the AR System client connects to theAR System servers through arservtcd at port number 1010, and theNotification client connects to the notification server at port number 1050. Toachieve this, the administrator sets the ar configuration file to includeRegister-With-Portmapper: F and TCD-Specific-Port: 1010. Theadministrator also sets the nfy configuration file to includeRegister-With-Portmapper: F and Notifier-Specific-Port: 1050. On theclient side, the administrator or user sets environment variables to inform theclients of the location on the firewall through which they can connect to theAR System and notification servers.3-20 Action Request System Administrator’s Guide, Volume 2

Configuring Clients for AR System ServersAR SystemserversFirewallport 1010AR SystemclientNotificationserverport 1050Environment setting:ARTCPPORT = 1010Notificationclientar configuration file settings:Register-With-Portmapper: FTCD-Specific-Port: 1010Notifier-Specific-Port: 1050nfy configuration file settings:Register-With-Portmapper: FTCD-Specific-Port: 1010Notifier-Specific-Port: 1050Environment setting:NTTCPPORT = 1050Figure 3-6Sample Server Access Without a PortmapperIf you are running a notification client behind a second firewall, set theNTTCPCLIENTPORT environment variable to enable the notification server toconnect with that client. Figure 3-7 shows a sample of how a notificationserver and notification client connect through firewalls without the use of aportmapper. The notification client connects to the notification server at portnumber 1050 of the firewall protecting the notification server, and thenotification server connects to the notification client at port number 2020 ofthe firewall protecting the notification client. The administrator sets anadditional environment variable (NTTCPCLIENTPORT) to inform the notificationserver of the location on the second firewall through which it can connect tothe notification client.AR System Servers 3-21

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