I'm planning on having a few servers (including SVN) listening on 127.0.0.1 on machine A, and then tunneling into that machine from machine B to use those services.
However, how safe is "lo" this sort of tunnel? Is there a way for other (non root) users of machine A to sniff what goes about though "lo"? To make my question clearer: I know that the tunnel itself cannot be read from outside, but my concern is the last piece of link; can the loopback network interface be accessed by other users? Is it safe, in a shared environment, to transmit sensitive data though it? -- Hugo Osvaldo Barrera