Xref: utzoo news.admin:1847 news.software.b:1259
Newsgroups: news.admin,news.software.b
Path: utzoo!utstat!geoff
From: geoff@utstat.uucp (Geoff Collyer)
Subject: Re: Stopping unauthorized checkgroups messages?
Message-ID: <1988Mar27.212806.2832@utstat.uucp>
Summary: edit /usr/lib/news/checkgroups, for B news
Organization: Statistics, U. of Toronto
References: <1231@cos.com>
Date: Sun, 27 Mar 88 21:28:06 GMT

I assume that you are running an old B news, as the C news checkgroups
has always been non-destructive and the B 2.11 checkgroups looks
non-destructive too.  You should find a shell script in
/usr/lib/news/checkgroups which implements the checkgroups control
message.  You just need to comment out any rmgroup and newgroup commands
or other commands which alter the active file or files under
/usr/spool/news.
-- 
Geoff Collyer	utzoo!utstat!geoff, utstat.toronto.{edu,cdn}!geoff