Re: "mobile" CVS

[Geoff Beier]

On Jul 20, 2004, at 3:48 PM, Spiro Trikaliotis wrote:
> Unfortunately, depending on whether I'm "inside" the network which 
> contains
> the repository, or "outside", I have to use different ssh settings. The
> machine name, as well as the used port change. I cannot access the
> repository server with the "inside" settings from outside, and vice
> versa.
>
> Currently, I help myself by utilizing a ~/.ssh/config file, which
> contains two entries, namely, CVS-local and CVS-remote, with the 
> correct
> settings for each case. Depending of whether I'm "in" or "out", I 
> rename
> one of both to "CVS", and only use the ssh server name "CVS" when
> working with CVS.
>
> This works, but is annoying. I ask myself if there is another way to
> perform this? I will ask this on an ssh mailing list, too, but there
> might be some ideas here which do not depend on ssh, but are cvs
> related.
I've handled this in the past by simply using a standard ssh client to 
connect to the appropriate server and port, and forwarding port 22 on 
localhost. So suppose that while on the internal network I connect to 
hosta, port 111 and while outside the firewall I connect to hostb, port 
222. All I do then is:

Internal:
ssh -L:22:hosta:111 -p 111 address@hidden
cvs -d:ext:address@hidden:/path/to/cvsroot co module

External:
ssh -L:22:hostb:222 -p 222 address@hidden
cvs -d:ext:address@hidden:/path/to/cvsroot co module

The details of the port forwarding vary, of course, depending on your 
network. For example, on some networks, you may always be forwarding to 
the "internal" port (so it'd be -L:22:hosta:111 in both cases with just 
the part from -p onward changing)...

Note that the cvs commands never change, just the ssh connection that I 
open on another console.

HTH,

Geoff

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