# backup-over-network
Some example commands for quickly saving files on a nearby machine.

It can be timesaver to archive, compress, upload and save big files, like virtual machines, all in one step.

If you are unfamiliar with those commands, you should learn about **tar**, **gzip**, **tee**, and **netcat**.

First, you should try sending some data using netcat to the other computer, meaning there isn't anything (firewall, anti-virus) that will block you. Then, type one command on a computer, and the other command on another computer, always with the server first. You will need to change the command to match your file names, ip address, and port.

Reversing client/server can be useful in case of restrictive firewalls.

### Client sends to server; Compress server side
	ferdodo@server:~$ nc -l 1234 | tee FILES.tar.gz | tar tvzf - && echo Done.
	ferdodo@client:~$ tar czf - FILES | nc -q 1 localhost 1234

### Client sends to server; Compress client side
	ferdodo@server:~$ nc -l 1234 | gzip | tee FILES.tar.gz | tar tvzf - && echo Done.
	ferdodo@client:~$ tar cf - FILES | nc -q 1 localhost 1234

### Server sends to client; Compress server side
	ferdodo@server:~$ tar czf - FILES | nc -l 1234
	ferdodo@client:~$ nc localhost 1234 | tee FILES.tar.gz | tar tz

### Restore a backup from server to client
	ferdodo@server:~$ gzip -c -d FILES.tar.gz | nc -l 1234
	ferdodo@client:~$ nc localhost 1234 | tar xvf -

### Restore a backup from client to server
	ferdodo@server:~$ nc -l 1234 | tar xvzf - && echo Done.
	ferdodo@client:~$ cat FILES.tar.gz | nc -q 1 localhost 1234