Window's hosts file

For Vista it is: C:\Windows\System32\drivers\etc\hosts

Write in IP adress map it to some symbolic address of your choice. One IP can have many lines - so it can has many different symbolic adresses.

Or you can download HostsXpert from this page:
http://www.mvps.org/winhelp2002/hosts.htm#Related

Install SVN on Debian

adduser subversion
apt-get install subversion
mkdir /var/svn-repos
svnadmin create --fs-type fsfs /var/svn-repos/directory
chown -R www-data:subversion /var/svn-repos/*
chmod -R 770 /var/svn-repos/*

Then create users for SVN, and set their default group to subversion.