Disclaimer: Please keep in mind when replying that I am a total noob.

I have a gaming server that is constantly under attack. I need to log all incoming udp packets so I can see what is being sent and the IP address of the sender. I tried Wireshark, but the log file became massive REALLY fast and caused all kinds of problems with the machine (ultimately they had to take it off the rack because it was overheating). Wireshark also did not appear to be logging the packets themselves, just the fact that packets were sent.

Can my goal be accomplished with tcpdump? And what would be the command to:

- log all incoming udp traffic including what's actually in the packets and the senders' IP addresses
- make it save the logs over multiple files of a manageable size, say 25MB, split up that way instead of one big file
- make it save the logs on a remote vps that I also own, instead of saving them on the vps I'm logging

I realize this is probably a basic question... sorry.