I’m getting the following error with curl:
# curl -vvvv https://192.168.99.100:8501/ui * Trying 192.168.99.100... * Connected to 192.168.99.100 (192.168.99.100) port 8501 (#0) * WARNING: using IP address, SNI is being disabled by the OS. * Unknown SSL protocol error in connection to 192.168.99.100:-9825 * Closing connection 0 curl: (35) Unknown SSL protocol error in connection to 192.168.99.100:-9825
When I read the accounts of others – they say there are three possible causes:
- The Destination Site Does Not Like the Protocol
- The Destination Site Does Not Like the Cipher (SSLv3 issue)
- The SSL Private cert Has Expired
- A Curl bug
Now I’ve checked these four – and am still getting the error – so there must be a fourth reason. My question is: What are the possible causes of a curl protocol error?
I’m guessing I’ll have to turn SSL trace on – but I’m trying to avoid having to do that.
(Note that this is also having issues talking to a squid proxy).