El artículo describe formas de copiar contenido a través de la red.

Al actualizar un servidor doméstico, copio todos los datos del servidor antiguo a un nuevo sistema. En los ejemplos a continuación, trabajo desde el nuevo servidor y ambos servidores están en la misma subred:

• Nuevo servidor (IP: 192.168.0.14)
• Servidor antiguo (IP: 192.168.0.1)

Los comandos ssh y scp se comunican a través de una conexión segura (puerto TCP 22). Tenga en cuenta que debe habilitar el demonio sshd en el host remoto.

If you need to copy single files or directories, you can use the scp command:

scp -r -v -p root@192.168.0.1:/etc /local_dir

Flag explanation:

• -r: recursive (copy all the content of /etc including its subdirectories)
• -p: preserve file attributes (eg. file creation or modification times)
• -v: verbose output

In the example above we copy the /etc directory located on a remote host (the old server: 192.168.0.1) to /local_dir on the local host (“new” server).

Please note that the scp command cannot copy the whole file system hierarchy including /proc, /dev or /lost+found. Fortunately, there is a workaround which was provided by Patrick Volkerding.

The following command should successfully copy a whole filesystem hierarchy:

ssh root@192.168.0.1 "(cd / ; tar cf - . )" | (mkdir -p /local_dir ; cd /local_dir ; umask 000 ; tar xvf -)

• Originally written by John Ciemgals 2013/02/10 03:51
  
• With help from Patrick Volkerding