location ^~ cdms proxy_pass http1012231528088; proxy_timeout 100s;

This configuration block is for the location "/cdms". It specifies that any requests with the "/cdms" path should be proxied to the backend server at "http://10.12.23.152:8088". The "proxy_timeout" directive sets the maximum time for the proxy to wait for a response from the backend server to 100 seconds. The "^~" modifier ensures that the location block is matched exactly and takes precedence over any other matching location blocks.