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michael_trott_1's avatar
michael_trott_1
Icon for Nimbostratus rankNimbostratus
Aug 19, 2008

problems monitoring http with auth

Hi all,

 

 

am trying to monitor a http site that presents auth via a popup. i have confirmed the account i am using works, when i vist via browser all ok.

 

 

have completed a tcpdump and found that i am getting back a 401 error, Access Denied.

 

I've tried curl and get the same responce:

 

 

curl -N -u : http://10.49.1.68:80/onyxemployeeportal_windows/powerpage/main_frame.asp

 

 

Anyone help out ?

 

 

thnx
management
monitoring

1 Reply

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  • hoolio's avatar
    hoolio
    Icon for Cirrostratus rankCirrostratus
    Aug 26, 2008
    What authentication type is the application using? If it's basic HTTP authentication, then using http://user:pass@app.example.com should work (or the corresponding -u flag for curl). If it's NTLM, then you'd need to use --ntlm for curl.

     

     

    If you want to monitor an app that only supports NTLM, it gets more complicated. With a default HTTP monitor, you're able to send a single static request and wait to see if the pool member responds. If that response contains a configurable static string the pool member gets marked up. With NTLM authentication, I think you'd need to send multiple requests to negotiate the authentication header value required to access the application. This page (Click here) indicates there are three request/responses required.

     

     

    If you really need to authenticate with a monitor to check the app, you might be able to write/find a client which can do this and then reference it with an external monitor.

     

     

    Else, if you just want to check if the service is up and responding, you could send a standard HTTP request and look for 401 in the response (receive string).

     

     

    Aaron