Nagios Support Forum

Posted: **Mon Jun 28, 2021 1:39 am**

Dear All ,
I installed the NCPA version 1.8.1 on satallite windown system W2003 R2 . I installed this version because this is the last NCPA plugin version compatible with windows 2003 R2 .

Now when I try to connnect the satellite system to my nagios XI server version 5.8.3 I have the follow Error :

Unable to contact server at https://xxx.xxx.xxxx.xxx:5693/testconne ... en=Mytoken.

From Os I tried to start the follow command to have an extended output :

curl -k "https://xxx.xxx.xxx.xxx:5693/testconnect/?token=Mytoken" -v
* Trying xxx.xxx.xxx.xxx...
* TCP_NODELAY set
* Connected to xxx.xxx.xxx.xxx (xxx.xxx.xxx.xxx) port 5693 (#0)
* ALPN, offering h2
* ALPN, offering http/1.1
* successfully set certificate verify locations:
* CAfile: /etc/pki/tls/certs/ca-bundle.crt
CApath: none
* TLSv1.3 (OUT), TLS handshake, Client hello (1):
* TLSv1.3 (IN), TLS handshake, Server hello (2):
* TLSv1.3 (OUT), TLS alert, protocol version (582):
* error:1425F102:SSL routines:ssl_choose_client_version:unsupported protocol
* Closing connection 0
curl: (35) error:1425F102:SSL routines:ssl_choose_client_version:unsupported protocol

Could you please help me to find a wordaround to use the NCPA client versione 1.8.1 with nagiosXI ver. 5.8.3 ?

Thanks in advance
Davide

Posted: **Mon Jun 28, 2021 11:25 am**

Do any of these work?

Code: Select all

curl -k -L --tlsv1 "https://xxx.xxx.xxx.xxx:5693/testconnect/?token=Mytoken" -v
curl -k -L --tlsv1.0 "https://xxx.xxx.xxx.xxx:5693/testconnect/?token=Mytoken" -v
curl -k -L --tlsv1.1 "https://xxx.xxx.xxx.xxx:5693/testconnect/?token=Mytoken" -v
curl -k -L --tlsv1.2 "https://xxx.xxx.xxx.xxx:5693/testconnect/?token=Mytoken" -v

Nagios Support Forum

NCPA on Windows error :ssl_choose_client_version:unsupported

NCPA on Windows error :ssl_choose_client_version:unsupported

Re: NCPA on Windows error :ssl_choose_client_version:unsuppo