URL Rewriting in Apache anyone?

["BUTLER, Tony, FM" <roaming@xxxxxxx>]

Not as OT as it might seem, given that it is to aide in HA!

I would like to redirect from say:

house.mydomain.com to mydomain.dnsalias.org/house (This in turn directs
on
to my dynamic IP cable modem connection).

so that I can access Homeseer from the web, using a "nicer" URL
than the
dnsalias one.

The idea is I'd have a number of these set up:
music.mydomain.com, TiVo.mydomain.co etc etc.

The webserver at mydomain.com is an apache server.
I know that the URL can be rewritten, but I just don't know how :-(
A search ont he web reveals various places talking about mod_rewrite,
but
sadly they don't seem to cover the basics of "which file do I put
the
instructions in and where do I place the file" :-(

Can one of you *nix guru's help?  /me is a windoze bod & a bit @
sea without
a GUI :-)

I would like to retain the url originally typed in rather than the user
seeing mydomain.dnsalias.org/something in the title bar.

The other thing is:
Can I also get it to handle ports, so I am talking over port 80 to
mydomain.com and it is rewriting behind the scenes to talk to a URL on
port
1234?  (Still web traffic, just a different port no)

thanks in advance,


Tony


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