Note: RMsis plugin for Confluence is still in Beta and the current implementation provides some very basic features, far from what the Plugin eventually intends to provide.
Prerequisites
In order to integrate Confluence with RMsis,
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In order to access RMsis / JIRA from Confluence, it is necessary to configure AppLinks for Confluence and JIRA. Please refer the following link for detailed information :
https://confluence.atlassian.com/display/DOC/Configuring+Application+Linksdoc/linking-to-another-application-360677690.html
Preferred Authentication Modes
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However, in the long term, we would recommend use of OAuth authentication for AppLinks Configuration. Other methods may not be supported in future. Please refer below link for detailed information : https://confluence.atlassian.com/display/DOC/Configuring+OAuth+Authentication+for+an+Application+Link