How to check the outbound packets in Linux

Linux and Unix-Like Red Hat
1

I have a linux redhat box , our security department in my company informed me that my server's IP sends So many traffic in my network ,
This box I am using it as FTP server to store the other servers logs .
My question briefly is how to check my outbound packets which are going from my PC to the network , and if there is any way to find out which service or application issuing tahts traffic ????

Thanks a lot and sorry for my English

2

You can always use ethereal, netstat and tcpdump.

To check tcp connections use netstat -t etc.
read manpage for tcpdump to get the right parameters to use to get the right information that you want, ex. src port and dst port.

/David