Server Set Properties dialog - Servers tab
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Server Set Properties dialog - Servers tab
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Figure 1: The Servers tab in Server Set Properties dialog. Server Type Select the type of service you want to monitor. You can choose between the 6 supported server types in the drop-down list: See monitoring methods for details on each server type. Please note: depending on your license type the number of Server Types may be limited. Server TCP Port If you wish to monitor a service on an alternate TCP port number (for example a web-server on port 8080 instead of the default port 80), enter that port number in this field here. Domain Name Enter the domain name of this Server Set. This is the domain name that users access the servers in this Server Set with. URL Path (HTTP server type only) Enter a path and / or web-page that you want Simple Failover to request when polling servers in this Server Set. For example if you want to check the availability of the URL "http://www.yourdomain.com/intra/budget.html", choose server type HTTP, enter domain name "www.yourdomain.com", and enter the URL path "/intra/budget.html". Server IP addresses in order of priority Enter the IP addresses of the individual servers in this Server Set. Unless you are using DNS round robin for load balancing traffic between these servers, the servers should be listed in order of priority (primary server first, backup server last). Use the arrow buttons on the right to change the order. Polling interval How often this Server Set is polled. You should balance this between how quickly you want problems detected, and how much traffic you want Simple Failover to cause. Note: Polling too often may be flagged as a DOS attack by some firewalls. The default setting is 5 minutes. Retry polling interval After a problem first is detected, subsequent polls will use this interval. The default setting is 2 minutes. Response timeout Specifies the amount of time that Simple Failover will wait for a response from the remote server. The default setting is 30 seconds. Failed polls accepted This threshold determines how many failed polls are accepted before the state of the server is reported as a failed. The default setting is 0 (zero). Advanced Server Set Properties When you select the Advanded… button Simple Failover opens a dialog where you can change additional settings for the server set. 
Figure 2: The Advanced Server Set Properties dialog with default values. Status codes Here you can specify the server response codes accepted by Simple Failover. For example if, for an HTTP server, you wish to accept the status code 401 in addition to the default code, enter 200;401. This field is only available for HTTP, FTP, SMTP, and NNTP servers. Skip polling lower priority servers when higher priority server responds correctly The default for Simple Failover is to always check every server in a Server Set. If you do not want this to happen, you can enable this option which stops Simple Failover from polling lower prioritized servers as soon as it encounters an higher prioritized server responding. |
