Telnet Port Availability Device

How to Create Devices and Targets

• • Creating a Device
  • Adding Several Targets within a Single Device

How It Works

Telnet port availability monitoring tests connectivity to a web server through a certain TCP port.

Configuring a Request

Hostname

Enter the server address to be monitored. This could be an URL or IP address.

Port

Enter the port number of the service you wish to check.

Time Validation Threshold (in seconds)

Enter the number of seconds the system should wait for a response from the target resource before returning an error. If this is left blank the default timeout is 120 seconds.

DNS Options

The DNS Options feature allows users to choose how domain name server (DNS) requests are conducted during a monitoring task.

To specify the mode of resolving hostnames, in the DNS Resolve Mode section, select one of the available modes. For more details on the feature configuration, see DNS Mode Options.

The Custom DNS Hosts section allows to set up the mapping of IP addresses to hostnames. IPv6 and IPv4 DNS resolution is supported.

To specify the mapping, enter the IP address and the hostname in the corresponding fields.

See also: DNS Mode Options.