zabbix 6.0 (Ubuntu 20.04) reports an error when using https to monitor the server hardware (redfish protocol), Cannot perform request: error:141A318A:SSL routines:tls_process_ske_dhe:dh key too small.
I am using curl to test and also report the error
curl: (35) error:141A318A:SSL routines:tls_process_ske_dhe:dh key too small
After checking the resource online, it is because openssl disables the low security encryption method. Just change the openssl parameters, restart the zabbix related services or reboot the system after the change.
Solution:
Edit the OpenSSL.conf file:
sudo nano /etc/ssl/openssl.cnf
Add this line at the top:
openssl_conf = openssl_init
And add these lines at the end:
[openssl_init]
ssl_conf = ssl_sect
[ssl_sect]
system_default = system_default_sect
[system_default_sect]
CipherString = DEFAULT@SECLEVEL=1
Restart the server, it will be OK!
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