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I've set up a server running 12.04 server edition which is connected to internet via LTE modem and shared to the internet as a WiFi hotspot. I've also installed no-ip on a server and gave it a host.

So when I try to SSH to server using its local IP (, everything is OK. But when I try to use its host (, I cannot connect. But server responds to ping.

Sorry for bad English.

share|improve this question
Have you blocked ports, protocols or interfaces, for example with iptables or ufw? If not, maybe your operator blocks ports? – taneli Oct 12 '12 at 17:57
I connected internet provider support and they said they only block 25 port. But I cannot nor ping neither access apache on server now. =( – Abrackadabra Oct 12 '12 at 18:48

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