Provided by: inn2_2.6.4-2build4_amd64 
NAME
mod-active - Batch processing of newsgroups creation and removal commands
SYNOPSIS
mod-active [ctlinnd-command-file ...]
DESCRIPTION
mod-active is a Perl script that updates the active file based on its input lines of ctlinnd "newgroup",
"rmgroup" and "changegroup" commands. It pauses the server briefly while the existing active file is
read and rewritten, which not only keeps innd from updating the active file but also locks against other
instances of mod-active.
The script must be run as the news user.
The input to mod-active can come either from one or more ctlinnd-command-file files named on the command
line, or from the standard input. Typically its input is the output from the docheckgroups or actsync
commands. Every line which contains the string "ctlinnd newgroup", "ctlinnd rmgroup", or "ctlinnd
changegroup", optionally preceded by whitespace and/or the path to ctlinnd, is noted for the update.
Redundant commands, such as a newgroup directive for a group that already exists, are silently ignored.
All other lines in the input are also silently ignored. After the new active file has been generated,
the existing one is renamed to active.old and the new one is moved into place. The script then displays
the differences between the two files. Any groups that were added to the active file are also added to
the active.times file with the string "checkgroups-update".
Please note that no syntax checking is performed on group names by mod-active.
BUGS
Though innd is paused while mod-active works, it is not inconceivable that there could be a conflict if
something else tries to update the active file during the relatively short time that mod-active is
working. The two most realistic ways for this to happen are either by an administrator concurrently
doing a manual ctlinnd command, or by innd receiving a control message, then mod-active pausing the
server, then the control message handler script that innd forked running its own ctlinnd command while
mod-active is working. Note that such scenarios are very unlikely to happen.
HISTORY
Written by David C Lawrence <tale@isc.org> for InterNetNews. Converted to POD by Julien Elie.
SEE ALSO
active(5), active.times(5), actsync(8), ctlinnd(8), docheckgroups(8), innd(8).