$ nmap 91.236.248.7
Starting Nmap 6.45 ( http://nmap.org ) at 2014-08-21 22:43 MSK
Nmap scan report for FTTx-client.ovis.vn.ua (91.236.248.7)
Host is up (0.056s latency).
Not shown: 997 closed ports
PORT STATE SERVICE
22/tcp open ssh
80/tcp open http
1720/tcp filtered H.323/Q.931
Nmap done: 1 IP address (1 host up) scanned in 5.31 seconds
$ curl -I 91.236.248.7
HTTP/1.1 200 OK
Date: Thu, 21 Aug 2014 18:45:50 GMT
Server: Apache/2.4.7 (Ubuntu)
Last-Modified: Wed, 20 Aug 2014 21:43:30 GMT
ETag: "2cf6-501167ebc73cb"
Accept-Ranges: bytes
Content-Length: 11510
Vary: Accept-Encoding
Content-Type: text/html