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Cont= ents
Uptime Infrastructure Monitor can monitor services and servers globally = from a single monitoring station. Communicating with servers across global = networks can be complex and it can be difficult to monitor servers and serv= ices that are behind firewalls so you may need to apply special settings to= address common security policies within your network.
This article provides a brief description of how to configure your firew= all and Uptime Infrastructure Monitor to allow full monitoring of protected= servers and services.
Monitoring Network Address Translation (NAT) addressed servers behind a = firewall is slightly more complex. NAT addressed servers are available only= to the private network behind the firewall, so you must adjust the firewal= l settings to allow additional access.
To allow monitoring of privately addressed servers:
Each server that you wish to= monitor from outside the firewall must have a distinct port assigned to fo= rward incoming connections to the correct NAT address. The exact procedure = to enable port forwarding will depend on your firewall manufacturer (please= contact your firewall vendor for assistance).
For example, if you= r firewall address is fw with an IP address of 192.168.19.200 and you want = to monitor the servers named mailbox and filestore, you must add the two na= med aliases to the firewall IP address.
Creating and editing aliases = for each server you would like to monitor is done on the monitoring station= system by editing a local system file to recognize these aliases. The alia= s file can be found in the following locations on most common platforms:
Linux a= nd Solaris: /etc/hosts Windows: C:\WINDOWS\system32\DRIVERS\ETC\HOSTS
The format for this file is the same across all platforms. The fol= lowing is an example of the line you would add (or update) in this file to = create aliases for the two NAT servers behind the firewall.
192.168= .19.200fw mailbox filestore
Note
Ping all three addresses from the monitoring station to verify tha= t the aliases have been properly created. If they have, you should receive = a reply.
When adding each server, enter the alias that you have created in t= he Host Name field of the Uptime Infrastructure Monitor Add System window. = Set the communications port to the port that you have assigned to be forwar= ded to the correct server through your firewall.