How to monitor a remote machine for problems

InternetPeriscope enables you to monitor a remote machine's Web Server, SMTP Server, and/or DNS Server for problems. It also allows you to monitor a machine by "pinging" it to make sure it is working. It checks the services you designate every five minutes, to ensure that the machine is functioning correctly.

If a machine is having problems, its icon will first blink yellow, and then red, as shown in the figure.
Blinking yellow
This image shows two machines having problems. anita.roamie.com has been having problems for some time, and is blinking red. miso.roamie.com just started having problems, and is blinking yellow.

To enable host monitoring, you must first add the machine to the console.

Then, right click on the machine's icon, move your mouse over the "Monitor" menu, and then click on the "Setup Host Monitoring..." menu item, as shown in the Figure.
Right click

The host monitoring dialog appears.
Host Monitoring dialog

  • If this host is running a Web Server, click on the "Web Server" check box to monitor the Web Server.
  • If this host is used for sending email, click on the "Mail (SMTP) Server" checkbox to monitor the Mail Server.

    If you are unsure which hosts receive email for your domain, see Finding out which hosts receive email for a domain name (MX Records).
  • If this host is used for checking email, click on the "Pop Server" check box to monitor the POP server.
  • If this host is running a Domain Name (DNS) Service, click on the "DNS Server" check box to monitor the DNS Server.

    If you are unsure which hosts handle DNS for your domain, see Finding out which Name Servers are authoritative for a domain.
  • To periodically check that this host is "up", click on the "ICMP Ping" to ensure the host has not "crashed".



Click on the "OK" button, and InternetPeriscope will immediately begin monitoring the services you selected. If InternetPeriscope determines that one of the selected services is having problems, the icon of that machine will blink yellow, then red.

If a machine's icon is blinking red or yellow, you can get more information on the problems the machine is having by double-clicking on the machine's icon, or by viewing the machine's problem history.

If you would like to receive an email notification when one of your machine's is having a problem, see Setting up email notification

Important Notes:

  • Be sure to leave InternetPeriscope running on your workstation at all times -- otherwise, it will not be monitoring your remote hosts, or keeping a history of their problems.
  • If your machine hosts several different websites, it is recommended that you add an icon for each of these sites to the console, and setup monitoring for each of these sites. For example, if your machine hosted two web sites, www.internetperiscope.com and www.thehungersite.com, then you should add an icon for each of these sites to the console, and setup Web Site monitoring for both.
  • A slow or bad connection between your machine and the remote host you are monitoring may cause a machine to temporarily blink yellow or red.
  • A firewall may cause a monitored machine's icon to erroneously blink red. For example, if your remote host is behind a firewall that prevents "pings", and you are running InternetPeriscope from outside the firewall, monitoring "ICMP Pings" on that machine will cause it's icon to blink red, even though the machine is not having problems.

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