A host named client12 is having difficulty communicating with a heavily used server named server14. The server14 server has the ce0， ce1， ce4， and qfe4 interfaces active. The client12， admin6， and appserv5 hosts are all on a private network and access the ce4 interface on server14 exclusively and cannot access other network interfaces on server14. The appserv5 and admin6 hosts are currently generating heavy traffic to server14 due to a running batch process. 
Which two commands can you run on server14 to look at the network traffic generated between only client12 and server14 to assist in troubleshooting the communication issue？（）

You need to change the hostname and IP address of a server. Without manually editing all of the required files， which command can be run to restore a system configuration to an unconfigured state， ready to be reconfigured again restore a system configuration to an unconfigured state， ready to be reconfigured again？ （）