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Level 7

Need help with SAM HTTP monitor

Hello All,


I am trying to setup a http monitor in SAM that is dynamic and runs on different hosts. When i use Node.Sysname variable i am getting the below error.




[Errno -2] Name or service not known


But when i run with actual host name i am able to get it running successfully. This is not working even with $IP variable. Can someone please help me with this?

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2 Replies

As an alternative to what @Vinx has suggested, you could use PowerShell to emulate the check carried out by the HTTP Monitor template. Take a look at this cmdlet:


Also, as for a longer read, check this article out, which goes into further detail on how PowerShell can help test web apps:

The above might be overkill for what you're looking to achieve, but it might give you an idea or two!

- Jez Marsh
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Level 11

I tried to reproduce your problem on my env :


http://${IP}:${PORT}/ >> Up

- http://${Node.Caption}:${PORT}/ >> [Errno -2] Name or service not known

http://${Node.SysName}:${PORT}/ >> [Errno -2] Name or service not known

http://${Node.DNS}:${PORT}/ >> [Errno -2] Name or service not known

- http://name_of_server:nb_of_port >> [Errno -2] Name or service not known


So only IP address works for me. Even if put the servername and port manually in url field if does not work