NickServ allows you to "register" a nickname and prevent others from using it. If the nick is not used for 30 days"#C0C0C0">

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NickServ allows you to "register" a nickname and prevent others from using it. If the nick is not used for 30 days, the registration will expire. The following commands allow for registration and maintenance of nicknames; to use them, type /msg NickServ command.

NOTICE: This service is intended to provide a way for IRC users to ensure their identity is not compromised. It is NOT intended to facilitate "stealing" of nicknames or other malicious actions. Abuse of NickServ will result in, at minimum, loss of the abused nickname(s).

REGISTER password email
Registers your nickname in the NickServ database. Once your nick is registered, you can use the SET and ACCESS commands to configure your nick's settings as you like them. Make sure you remember the password you use when registering - you'll need it to make changes to your nick later. (Note that case matters! FIDO, Fido, and fido are all different passwords!)
You must include an E-mail address when registering your nickname. You can prevent your E-mail address from being shown to other users with the SET HIDE command.

Guidelines on choosing passwords:
Passwords should not be easily guessable. For example, using your real name as a password is a bad idea. Using your nickname as a password is a much worse idea ;) and, in fact, NickServ will not allow it. Also, short passwords are vulnerable to trial-and-error searches, so you should choose a password at least 5 characters long. Finally, the space character cannot be used in passwords.

IDENTIFY password
Tells NickServ that you are really the owner of this nick. Many commands require you to authenticate yourself with this command before you use them. The password should be the same one you sent with the REGISTER command.

ACCESS ADD mask
ACCESS DEL mask
ACCESS LIST
Modifies or displays the access list for your nick. This is the list of addresses which will be automatically recognized by NickServ as allowed to use the nick. If you want to use the nick from a different address, you need to send an IDENTIFY command to make NickServ recognize you.
Examples:

LINK nick password
Links your nickname to another, effectively making the nick you are currently using an alias for the given nick. When you give this command, the access list for the nick you are using is deleted and replaced by that of the nick you are linking to; all memos for your current nick are added to the list of memos for the target nick (this may cause the nick to exceed its limit of memos, in which case you will need to delete some before you can receive more for either nick).
Once the link has been established, your nick will be transparently converted into the target nick everywhere in Services, except for the NickServ UNLINK and DROP commands. For example, you can use either nick to read the same set of memos (and memos sent to either nick will go into the same list). If either nick is on a channel's access list, then both nicks will get the same access privileges. However, the nicks will expire independently; if you only use one of a set of linked nicks, all the rest will expire.
In order to use this command, you must identify for your current nick (using the IDENTIFY command), and you must supply the password for the nick you wish to link to.

SET option parameters
Sets various nickname options. option can be one of:

In order to use this command, you must first identify with your password (/msg NickServ HELP IDENTIFY for more information).


DROP
Drops your nickname from the NickServ database. A nick that has been dropped is free for anyone to re-register.
In order to use this command, you must first identify with your password (/msg NickServ HELP IDENTIFY for more information).

RECOVER nickname [ password]
Allows you to recover your nickname if someone else has taken it; this does the same thing that NickServ does automatically if someone tries to use a kill-protected nick.
When you give this command, NickServ will bring a fake user online with the same nickname as the user you're trying to recover your nick from. This causes the IRC servers to disconnect the other user. This fake user will will remain online for one minute to ensure that the other
user does not immediately reconnect; after that minute, you can reclaim your nick. Alternatively, use the RELEASE command (/msg NickServ HELP RELEASE) to get the nick back sooner.
In order to use the RECOVER command for a nick, your current address as shown in /WHOIS must be on that nick's access list, or you must supply the correct password for the nickname.

RELEASE nickname [ password]
Instructs NickServ to remove any hold on your nickname caused by automatic kill protection or use of the RECOVER command. By default, such holds last for one minute; this command gets rid of them sooner.
In order to use the RELEASE command for a nick, your current address as shown in /WHOIS must be on that nick's access list, or you must supply the correct password for the nickname.

UNLINK [nick password]
Removes a link from your nick to another. When the link is removed, the nickname flags and access list of the previously linked nick are copied to your current nick and can then be independently changed. Memos are not copied; all memos will remain stored with the previously linked nick.
By giving a nickname and password as parameters, you can unlink a nick besides the one you are currently using.

UNSET URL
Allows you to clear the URL associated with your nickname. The URL parameter must be given.

GHOST nickname [ password]
Terminates a "ghost" IRC session using your nick. A "ghost" session is one which is not actually connected, but which the IRC server believes is still online for one reason or another. Typically, this happens if your computer crashes or your Internet or modem connection
goes down while you're on IRC.
In order to use the GHOST command for a nick, your current address as shown in /WHOIS must be on that nick's access list, or you must supply the correct password for the nickname.

INFO nickname [ ALL]
Displays information about the given nickname, such as the nick's owner, last seen address and time, and nick options. If you are identified for the nick you're getting information for and ALL is specified, you will be shown all the information; regardless of whether it's hidden or not.

LIST pattern
Lists all registered nicknames which match the given pattern, in nick!user@host format. Nicks with the PRIVATE option set will not be displayed.
Examples:

LISTCHANS
Lists the names and the total number of channels you have registered under your nickname.

STATUS nickname...
Returns whether the user using the given nickname is recognized as the owner of the nickname. The response has this format :  nickname status-code
where nickname is the nickname sent with the command, and status- code is one of the following:
0 - no such user online or nickname not registered
1 - user not recognized as nickname's owner
2 - user recognized as owner via access list only
3 - user recognized as owner via password identification
Up to sixteen nicknames may be sent with each command; the rest will be ignored. No error message is generated if no nickname is given.

SLAVES
This will list all slaves linked to your nick.