Shell Programming and Scripting

Hello,

I am not efficient in script, so need some help to create a small script.
I have file, which have list of all IPs. All those IPs can be connected from a gateway server with "sudo ssh 10.63.xx.xx". We do not have reverse lookup for IPs, so I want script to login to each server, return its name (or "uname -a") and come out and then do the same for next server. Basically I want to know, this IP is associated with which server.
Few IPs are related to Windows server or unresponsive servers, so script should not stuck with them. There are mix of Solaris and Linux servers.
Please help me to achieve it or else manually it will be big exercise for me.

Thanks

Try

Code:

while read IP; do { echo $IP ": " $(sudo ssh -n $IP hostname); } & done < file