I have found a subdomain as given below.
- I am trying this url in browser it is showing that “This site can’t be reached”.
- zenmap with the command “nmap -T4 -F -Pn jira-xxx.example.com”
It is showing that following ports are open
PORT STATE SERVICE
25/tcp open smtp
53/tcp open domain
It seems that this is used for the jira tool (as per the name). Is there any way forward to dig it down ?