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Why are HTTP Monitors returning "no data"?

matthew_gardner
Dynatrace Helper
Dynatrace Helper

We have set up some HTTP monitors that have been returning with "no data". However, we are able to ping the website that is being tested directly from the environment ActiveGate. When we try to ping over port 80 from the ActiveGate, we get a response of "connection reset by peer"

Ports 80 and 443 have been opened on the ActiveGate

I am not sure why this behavior would be seen.

 

3 REPLIES 3

Are you sure that network traffic is open for all needed ports?

Sebastian


Yes, as far as I know. The client has told me they have allowed all traffic on the ActiveGate for port 80 and 443


dave_mauney
Dynatrace Champion
Dynatrace Champion

It sounds like the web site maybe is blacklisting the AG server.

I would try these (from the ActiveGate) to do further troubleshooting:

wget

curl

telnet

netcat

HTH,

dave