Connecting Jira to a GitHub Enterprise organization
-  Sign into your GitHub Enterprise account at http[s]://[hostname]/login. If already signed in, click on the GitHub logo in the top left corner. 
-  Click on your profile icon under the GitHub logo and select the organization you would like to connect with Jira.  
-  Click on the Edit organization name settings link.  
-  In the left sidebar, under Developer settings, click OAuth Apps.  
-  Click on the Register new application button.  
-  Fill in the application settings: - In the Application name field, type "Jira" or any name you would like to use to identify the Jira instance.
- In the Homepage URL field, type the full URL of your Jira instance.
- In the Authorization callback URL field, type the full URL of your Jira instance.
 
-  Click Register application. 
-  At the top of the page, note the Client ID and Client Secret. You will need these for configuring your Jira instance. 
Jira instance configuration
-  On your Jira instance, log into an account with administrative access. 
-  At the top of the page, click the settings (gear) icon and choose Applications.  
-  In the left sidebar, under Integrations, click DVCS accounts.  
-  Click Link Bitbucket Cloud or GitHub account.  
-  In the Add New Account modal, fill in your GitHub Enterprise settings: - From the Host dropdown menu, choose GitHub Enterprise.
- In the Team or User Account field, type the name of your GitHub Enterprise organization or personal account.
- In the OAuth Key field, type the Client ID of your GitHub Enterprise developer application.
- In the OAuth Secret field, type the Client Secret for your GitHub Enterprise developer application.
- If you don't want to link new repositories owned by your GitHub Enterprise organization or personal account, deselect Auto Link New Repositories.
- If you don't want to enable smart commits, deselect Enable Smart Commits.
- Click Add.
 
-  Review the permissions you are granting to your GitHub Enterprise account and click Authorize application. 
-  If necessary, type your password to continue.