In the Browser, open this address "https://My_WebSite_Name_here.com:2222" Login/Password as given.
In the paragraph "Advance Features" click "Tomcat Manager"
The screen will show the managing of servlet. JSP/Servlet access is enabled. But, I will not use this page for uploading the WAR file.
In the FTP screen, I put the WAR file at, "/domains/My_WebSite_Name_here.com/public_html". Tomcat Server will automatically recognize my WAR file in a couple of minutes and create a folder name "sesame" which is the subdirectory for the application.
Go back to Browser JSP/Servlet Admin Page which I have opened; Reload the page. In the "Path/Display Name/Status/Sessions" Table "/sesame" in red color should appear. If it is not appear, check whether the directory for sesame.war is "/domains/My_WebSite_Name_here.com/public_html"
If I do not change the "/sesame" from red color to black, I cannot make change to any file in side the /sesame directory. So, I will check at the checkbox at the most-right of the /sesame line and click "Chown" in the Path Table. Then any change make to anything inside sesame directory is no more prohibited.
Done, now I can make any change such as CHMOD 777 to the "system.conf.example" or rename it, etc.