I use a DDNS which is automatically updated by my router every time a new IP address is assigned to the domain name.
The no-ip domain name is pointing to the correct IP address.
Currently I am trying to connect to my server in an FTP client. I can connect to the server using the IP address: 188.8.131.52. But I can not connect to the server using the domain name: crmepham.no-ip.biz.
Here is proof that I can not connect using crmepham.no-ip.biz:
Here is proof I can connect using the IP address:
But then sometimes it does resolve the domain name and connects me fine. I have been in contact with no-ip who can't see any issues with resolving the domain name from their end.
What could possibly be causing the sporadic resolving issues? This is effecting all the websites that are hosted on my server also only sporadically being available, however always being available via the IP address.
The server runs Ubuntu 14.04 LTS, Apache 2.4, I have setup Virtual hosts and Tomcat 7. All was working fine a couple of days ago under Ubuntu 12.04.
And a further nslookup 3 minutes after the last: