If you're using NCSA, that's OK but you're going to have to "roll your own" security setup. Web/RCS relies on .htaccess and the value of $USER to implement ckeckin/checkout security.
Add this line to srm.conf:
Alias /webrcs/ /home/webrcs/If you want to use Web/RCS "transparently" (i.e. you want it to work the same way cvsweb does) then you can to this:
Alias /webrcs/ /home/webrcs/webrcs.pl/In this mode you can access a file with a URL like:
http://myserver/webrcs/dir/dir/file
The users won't be able to use the "frames" interface, or see the documentation, but this approach has a certain "slickness" that you may find appealing.
Sample .htaccess file
AuthSystem On AuthName Web/RCS AuthType Basic require valid-user