1. My company has a few virtual machines.
2. On one of it works Jira to offer our clients to open tickets if any tech. support required. Open via personal account, where they do log in with logins and passwords (as usual ha-ha).
3. We have URL let's say http://support.xyz.com/ that used to be work properly till last week.
4. Now clients can't access even to the site where you can log in.
5. But from our local network, we are easily connecting there.
I've checked nslookup this URL and seems it's only presented on our DNS. Now I wonder, how can I fix it and make link visible for the world again?