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Hack 9 Register Your Channel with ChanServ
Are you having problems with unruly users
causing mayhem in your channel? Protect your channel with the
ChanServ service.
So
you''ve just created your own channel. If you were
the first person to join the channel, then it is likely that the IRC
server will have made you into a channel operator. Other users are
free to wander into your channel, but you have ultimate control over
what goes on. Having operator status means that you can kick and ban
unruly users or even moderate the channel, which means people can
speak only if you allow them to. Several users have already gathered
in your channel, but a software installation requires you to reboot
your computer. When you return to your channel, you discover that you
are no longer a channel operator! More importantly, nobody else in
the channel is a channel operator. The only way to restore your
operator status is to ask everybody to leave the channel and be the
first to rejoin. Practically speaking, this isn''t
going to happen.
One solution to this problem would have been to use your operator
status to grant the same status to other users in your channel. The
problem with this approach is that you need to be able to trust those
other users to op you when you rejoin the
channel. Another problem is that netsplits
(where servers in an IRC network become disconnected) and server
maintenance can easily wipe out entire sets of channel operators.
2.6.1 Introducing ChanServ
The best solution to this problem is
ChanServ. Many IRC networks run
Services such as ChanServ, which allow users to
manage their channels. Not all ChanServs behave identically, but on
the whole they are pretty similar. This hack makes use of the
ChanServ on the freenode IRC network. ChanServ can be treated just
like any other IRC user, and you can interact with it by sending
private messages. To get help on any of the features of ChanServ,
simply send the help command via a private
message:
/msg ChanServ help
2.6.2 Registering a Channel
To use ChanServ, you may first need to register your nickname with
NickServ [Hack #8]. Many IRC
networks use both ChanServ and
NickServ Services. In most cases, ChanServ
won''t recognize you until you have identified
yourself with NickServ. Also, you will need operator status in the
channel you want to register. Remember that anyone with operator
status can register the channel, so it''s a good idea
not to give away operator status to anyone else until the channel has
been registered.
To register a channel, you must send some private messages to
ChanServ. You can do this by opening a query window and using the
register command:
<Wilmer> register #futurama password
<ChanServ> The channel [#futurama] is now registered under your nickname.
<ChanServ> Your channel password is [password]. Please remember it for later use.
<ChanServ> Channel guidelines can be found on the freenode website
<ChanServ> (http://freenode.net/channel_guidelines.shtml).
<ChanServ> Freenode is a service of Peer-Directed Projects Center, an IRS 501(c)(3)
<ChanServ> (tax-exempt) charitable and educational organization.
If you have not already done so, this would be a good time to read
the channel guidelines for the IRC network you are using. Some
networks have strict policies against off-topic or illegal channels,
and finding out that a server operator has closed your channel is not
a pleasant surprise.
2.6.3 Restoring Channel Operators
Each
time you connect to the IRC network, you can register with NickServ
so that it knows who you are. Because ChanServ and NickServ work
together, ChanServ will now be aware that you are the owner of your
channel. If you join your channel and find that other people are
already there, the network will not grant you operator status by
default. Even if there are no other operators in the channel, you can
send an op request to ChanServ to restore your
operator status. Because you may be in more than one channel, this
command must take the channel name as a parameter:
/msg ChanServ op #futurama
Note that some IRC networks also require you to specify your nickname
as well:
/msg ChanServ op #futurama Wilmer
2.6.4 Access Lists
An
access list lets you assign other rights
to the users in your channel. For example, you can allow another user
in your channel to use ChanServ to obtain operator status. To get the
current access list from ChanServ, you can send another private
message:
/msg ChanServ access #futurama list
ChanServ will reply with a list that shows everyone who has special
ChanServ privileges for your channel. Initially, this will be just
you:
<ChanServ> -- Access List for [#futurama] --
<ChanServ> Num Level Hostmask Time since last use
<ChanServ> --- ----- -------- -------------------
<ChanServ> 1 30 Wilmer 5m 58s
<ChanServ> -- End of list -
Something worth noting here is the access
level. Each user can have a different access
level. You probably don''t want everyone to have the
same rights as you have. Some people should be able to let ChanServ
grant them operator status, but they shouldn''t all
be able to change channel settings or add other people to the access
list. Being able to set the access level for each user gives you some
control over this.
By default, people with an access level of 10 or more can use
ChanServ to grant themselves
operator status. People with an access
level of 15 and higher can add people to the AKICK list, which
automatically kicks and bans them. People with an access level of 30
and higher can add people to the access list. For a complete list of
access levels, you can use the
level command:
/msg ChanServ level
#futurama
list
You can, of course, change these values if you want to. For example,
you may want some people to be granted operator status automatically
when they join the channel. Read the help information about the
level command for more information about this.
2.6.5 Adding Users to the Access List
In some cases, it is useful to add
someone to the access list. For example, one of the users in your
channel may have written a bot that requires channel operator status
to do some of its jobs. If you are unsure whether to trust the author
of this bot, you can use access levels to make things a bit safer.
You don''t want to give the bot more rights than it
needs, so you can give the bot an access level of 10:
<Wilmer> access #futurama add Bender 10
<ChanServ> [Bender] has been added to the access list for #futurama with level [10]
<Wilmer> access #futurama list
<ChanServ> -- Access List for [#futurama] --
<ChanServ> Num Level Hostmask Time since last use
<ChanServ> --- ----- -------- -------------------
<ChanServ> 1 10 Bender
<ChanServ> 2 30 Wilmer 51m 24s
<ChanServ> -- End of list -
The bot called Bender can now also get operator status in #futurama
through ChanServ.
Don''t forget that if someone wants to be in the
access list, she must have registered her nickname with NickServ
first. If this has not been done, ChanServ will not know whether that
person really is who she claims to be.
2.6.6 Other ChanServ Features
Of course, there is more to ChanServ than you have seen so far.
ChanServ can
unban you from your channel when someone
has banned you and you are unable to join and fix it. Suppose there
was a bug in Bender that caused him to kick me from #futurama. To
unban myself, all I have to do is this:
/msg ChanServ unban #futurama
ChanServ can also be used to send a
welcome message when
someone joins the channel. This is not like a greeting from a bot.
The user will get this welcome message in a NOTICE directly from
ChanServ. People who are in the channel already
won''t see the message.
/msg ChanServ set #futurama entrymsg Welcome to the world of tomorrow!
Another useful ChanServ feature is
MLOCK, so that you
can force some channel modes. If a channel mode has been forced, none
of the users in that channel will be able to set or unset it. You can
force a channel to be moderated (+m) like so:
/msg ChanServ set #futurama
mlock +m
If you are using an IRC network with a slightly different ChanServ
that does not accept these commands, remember that you can usually
work out what the correct command syntax should be by using the
help command.
Some IRC networks choose not to have
ChanServ or NickServ Services. IRCnet is one of
these networks. If you lose operator status in your channel on
IRCnet, the only way to get it back is to rejoin the channel after
everybody else has left. This is not the easiest thing to do, so your
channel is likely to become a free-for-all after a while. This is how
IRCnet works. Some people prefer this kind of unruliness, while
others may prefer the stricter model of using ChanServ. This is just
one of the factors in choosing which IRC network you wish to use most
often.
Wilmer van der Gaast
