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DSYNCGROUPS(8)		    System Manager's Manual		DSYNCGROUPS(8)

       dsyncgroups  - Obtain active file and group description info from a re-
       mote NNTP host and update the local (or specified  KP	 data-

       dsyncgroups  -h remotehost | -G filename	[ -p port ] [ -f/F ] [
       -a ] [ -o ] [ -g	] [ -i ] [ -m ]	[ -M flag ] [ -D ] [  -N[B][E,X]  ]  [
       -X[E,X] ] [ -w wildcard ] [ -d[#] ] [ -n[#] ] [ -P[#] ] [ -z ]

       DSyncGroups  will  connect to a remote NNTP server and download some or
       all of the remote machine's  active  file  and  newsgroup  descriptions
       file.   The  information	 is then used to update	a local	active file KP
       database.  By default, /news/ will be updated.	 Options  con-
       trol  how the update is handled.	 Note that dsyncgroups is specifically
       designed	to allow you to	sync to	remote active files without having  to
       synchronize your	article	numbers	to them.  Carefully read the available
       options and make	a backup of your file if you	 aren't	 sure.
       Also  note  that	 you can create	an initial file with	dsync-
       groups based on the active file from some other host, but that this op-
       eration	will take a significant	amount of time (30 minutes to an hour)
       due to inefficiencies in	the database resort  routine.	These  ineffi-
       ciencies	do not effect normal database operation.

       -h  remotehost  Specify	the remote NNTP	host to	connect	to.  This is a
       required	option.

       -p port Specify the port	number on the remote host to connect to.   The
       default is port 119.

       -G  filename  Specify  the filename to use as input that	would normally
       come from a remote host.	The input format is the	same as	that  returned
       from a 'list active' on a remote	server.	i.e:

       groupname artend	artbegin modstatus

       -f/F  Specify the local	KP database to work on.	 The uppercase
       -F will create the file if it did not previously	exist.	The  lowercase
       -f requires that	file to	already	exist.

       -a  A  shortcut to turn on the -o, -g, -i and -m	options, see those op-
       tions below.  Note that the -D and -N options are NOT turned on by -a.

       -o Overwrite option.  Causes the	group description and, if -m is	speci-
       fied,  the  moderation flags from the remote NNTP host to overwrite any
       preexisting values in the local database.

       -g Causes groups	on the remote NNTP host	which do not exist in the  lo-
       cal database to be added	to the local database.

       -i Sync the newsgroup descriptions.

       -m  Allows the moderation status	on the local KP	database to be updated
       from the	remote NNTP host.

       -M flag Set the group flags to the specified flag. The flag is a	single
       character being one of:

	      y	       Local postings are allowed
	      m	       The group is moderated and all postings must be approved
	      x	       Articles	cannot be posted to this newsgroup

       -D  Specifies  that  any	 groups	 not  found on the remote NNTP host be
       DELETED from the	local KP database.  Groups outside a wildcard specifi-
       cation are not effected.

       -N[B][E,X]  Specifies that the article begin and	end range in the local
       KP database be OVERWRITTEN by the article  range	 on  the  remote  NNTP
       host.   Like  -D,  this	is  a dangerous	option and should be used with

       If -N is	given alone, both the beginning	and ending article  number  in
       the range is effected.  -NB causes only the beginning article number in
       the range to be effected, and -NE causes	only the ending	article	number
       in the range to be effected.  -NX is like -NE but only adjusts the end-
       ing number upwards.  -NBX is often used in  slaved-cache	 situation  to
       keep  the  range	 synchronized  with the	remote NNTP host's expiration.
       -NR is like -NB but adjusts the beginning article number	based  on  the
       current	ending	article	number minus the number	of articles on the re-
       mote site.  -NR can be used to adjust the beginning article even	if the
       local database is not in sync with the remote machine's ac-
       tive file.

       -X[E,X] Specifies that the NX field in the local	KP database  be	 OVER-
       WRITTEN	by  the	ending article number on the remote NNTP host.	The NX
       field is	like the NE field, but it is used by the diablo	feeder to  as-
       sign article numbers for	Xref:.	If you are running a feeder-side arti-
       cle number assignment via  the  'active	on'  option  in	 diablo.config
       rather  then  a	reader-side  article number assignment and you want to

       If -X is	given alone, the NX field is synced to the remote NNTP	host's
       ending article number.  -XE also	accomplishes this.  -XX	will cause the
       NX field	to be synchronized in an upward	fashion	only.

       Note that if the	article	numbers	are being maintained locally (by  dia-
       blo or dreaderd)	there is a race	condition between obtaining the	number
       from the	remote server and updating the number locally.

       -w wildcard Specify a group wildcard.  Only groups matching  the	 wild-
       card are	effected by the	program.

       -d[#] Turn on debugging.	 An optional debug level may be	specified.

       -n#  When  syncing the end article number (see -N option), increase the
       local value by this number before storing  it.  WARNING:	 Setting  this
       value too high can cause	all your current overview records to expire in
       the next	dexpireover run	as it is equivalent to receiving  that	number
       of extra	articles - rather sync slowly by using a small value (e.g: 10)
       per dexpireover run. This value is applied to either/both of NX and  NE
       fields, depending on the	-N options used.

       -P# When	syncing	the end	article	number (see -N option),	don't increase
       the value by more than #	% of the original value. This value is	useful
       in  preventing dexpireover from wiping out too much of the overview for
       big jumps in the	end article number. When used in that  context,	 don't
       use  a  percentage greater than 20% and ensure that dsyncgroups is only
       run once	for every few dexpireover runs.	 -z Run	through	 the  motions,
       but don't actually make any changes.

       DSyncGroups  is	used to	update Diablo's	active file, /news/,
       from a remote source.  It may also be used to create an initial	active
       file  from  a  remote  source.  DSyncGroups may be run without shutting
       down diablo.  However, if you are doing a major update,	it  is	recom-
       mended that you shutdown	diablo and follow the DSyncGroups command with
       a dkp -t	command	to trim	the deleted  records  out  of  the
       database, making	it smaller.

       diablo(8), dicmd(8), didump(8), diload(8), dnewslink(8),	doutq(8), dex-
       pire(8),	 dexpireover(8),  diconvhist(8),  dilookup(8),	 dspoolout(8),
       dkp(8), dpath(8), diablo-kp(5), diablo-files(5)



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