HTTP / Firewall / SSL
HTTP / Firewall | In case of connection problem, one thing to check are firewall rules. Communication can be blocked either by local or remote environment. Firewall should have exceptions that allow to pass HTTP communication on JIRA server port. For more details please check documentation for your firewall software. |
HTTPS / SSL | If one JIRA communicates with another one via SSL protocol it is required that server has a valid certificate installed. You can use this plugin to do that https://marketplace.atlassian.com/plugins/com.atlassian.jira.plugin.jirasslplugin/server/versionhistory This is required because it is server-server communication rather than client-server. |
Disable SSL Check | If you got problems with your SSL configuration you may want to try this option in jira-config.properties: sync.ssl.validation=false It will skip Certification verification. |