If you need to check the connection between two computers you may use this remote ping utility.
You may also use the ping service on your machine to ping another one. The remote ping utility enables pinging another computer from the internet. Thus, you are pinging not from your machine, but from this remote server. This will detect if the server is available for the connection to the target host or IP address from another network. In case you don’t receive a return message after pinging from your computer, but do receive from the remote server, this means you have problems with your internet connection. If you don’t receive return message from both remote server and your computer, this may be a sign of problems with the target host or IP you ping.
[geek@remotehost ~] $ ping gmail.com
PING gmail.com (64.233.161.83) 56(84) bytes of data.
64 bytes from 64.233.161.83: icmp_seq=0 ttl=115 time=267 ms
64 bytes from 64.233.161.83: icmp_seq=1 ttl=115 time=266 ms
64 bytes from 64.233.161.83: icmp_seq=2 ttl=115 time=265 ms
--- 64.233.161.83 ping statistics ---
4 packets transmitted, 4 received, 0% packet loss, time 3003ms
rtt min/avg/max/mdev = 265.962/266.557/267.723/0.938 ms, pipe 2