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eagertolearn's avatar
eagertolearn
Icon for Nimbostratus rankNimbostratus
Jun 24, 2024

Curl usage

Hi Experts,    We want to check the status of pool members Eg. service status locally on server, wanted to ensure that user is not offloading any SSL certificate on server locally, Ciphers on serve...
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Mohamed_Ahmed_Kansoh's avatar
Mohamed_Ahmed_Kansoh
Icon for MVP rankMVP

Hi, 
I am adding a very important usage for curl command. 

curl -Ik https://<Virtual_server_Ip>/path1/path2/........

This command shows you accessing Virtual server throughout Bigip itself , this very very useful when you need to test the virtual server from internal network and isolate the external one , also if there are an issue or something drops packets on your Bigip like ( AWAF , APM ... ) this will confirm that something configured wrong in bigip or Virtual server Configuration and it needs to be reviewed and modified.

Also you can see logs from this curl test: 
When doing this Curl command, Bigip will use its external self IP address as a source IP and the destination is the Virtual server. 

 

Take this note beside svs & boneyard zamroni777 eagertolearn 

 

thanks

svs's avatar
svs
Icon for Cirrostratus rankCirrostratus
Jun 26, 2024

That's a really good point. I personally prefer Postman for tests "from the outside", if possible.

I would like to emphasize the flag -I that you mentioned. Especially when it comes to test health monitors I usually use the HEAD-Method, instead of GET, if I only check the response code. This reduces the amount of unnecessary data between the BIG-IP and server drastically.