How to enable SSL integration with other tools via API

[Hideki_Kadowaki]

Hi

I'm trying to setup SSL integration with Jira and other tools on my environment via API, but as far as my test, Non-SSL connection (http) could be succeeded but SSL connection (https) have been failed as below. As the following result, I tried these test on the server which Jira also is installed so I'm not sure what is the problem except NW or port setting. Can anybody help how to enable SSL integration?

-Environment:

JIRA 9.12.8 on RHEL 8.6

Success (non-ssl)

[root@bin]#curl -s -u User001:password 'http://localhost:8080/rest/api/latest/myself'

{"self":"http://localhost:8080/rest/api/2/user?username=User001","key":"JIRAUSER00001","name":"User001","emailAddress":"User001@mail.com","avatarUrls":{"48x48":"https://www.avatar.com/avatar/2r32533633q10e23076cf72648e44e63?d=mm&s=48","24x24":"https://www.avatar.com/avatar/2r32533633q10e23076cf72648e44e63?d=mm&s=24","16x16":"https://www.avatar.com/avatar/2r32533633q10e23076cf72648e44e63?d=mm&s=16","32x32":"https://www.avatar.com/avatar/2r32533633q10e23076cf72648e44e63?d=mm&s=32"},"displayName":"User001@mail.com","active":true,"deleted":false,"timeZone":"Asia/Tokyo","locale":"ja_JP","groups":{"size":2,"items":[]},"applicationRoles":{"size":1,"items":[]},"expand":"groups,applicationRoles"}

Fail (ssl)

[root@bin]# curl -v -u User001:password 'https://localhost:8443/rest/api/latest/myself'

*   Trying ::1...

* TCP_NODELAY set

* connect to ::1 port 8443 failed: Connection refused

*   Trying 127.0.0.1...

* TCP_NODELAY set

* connect to 127.0.0.1 port 8443 failed: Connection refused

* Failed to connect to localhost port 8443: Connection refused

* Closing connection 0

curl: (7) Failed to connect to localhost port 8443: Connection refused

[root@bin]#

Thank you