badexpiry

BADEXPIRY(8CN)                                                  BADEXPIRY(8CN)



NAME
       badexpiry - find newsgroups with odd use of explicit expiry dates

SYNOPSIS
       badexpiry [ mincount minsize ]

DESCRIPTION
       Badexpiry reports (on standard output) newsgroups with suspicious
       patterns of use of explicit expiry dates in articles.  Specifically, it
       reports groups with more than mincount (default 15) articles, more than
       90% of all articles, or more than minsize (default 500) KB of articles
       having explicit expiry dates more than 10 days after their arrival
       dates.

       Such reports are not necessarily indicative of abuses—for example,
       news.announce.newusers legitimately has most or all of its articles on
       long expiry—but investigation may be in order.

FILES
       /var/lib/news/history
       /var/spool/news/*/*/...

SEE ALSO
       news(5), newsdb(5)

HISTORY
       Written for C News by Henry Spencer.

BUGS
       The percentage and age thresholds ought to be settable.



                                  18 Oct 1994                   BADEXPIRY(8CN)