Undernet is different than other networks you may have used in the past. Undernet has no nickname registration services, which means that anyone may use any nick that is available at any time.
You can, however, register a username. This has nothing to do with the nickname you choose to use. Usernames are used to login to our channel service bot, X, and a registered username may be required to join some channels.
If you would like to register a username, visit CService's online new user registration page.

To login to X with your username, issue the command: /msg x@channels.undernet.org LOGIN username password
To hide your hostname/IP address, see below.
Note that you must log in with your username at least once every 180 days or the username will be deleted.
Also note that the only way to logout is to /quit and reconnect, and you may not be logged in from more than one nickname at a time.

While you are connected to Undernet, the +x usermode will change your host to the Undernet users hostname, your_username.users.undernet.org.
To do this, you must first be logged into X, then type: /mode your_nickname +x
For example, if your nickname were 'jotun', you would type: /mode jotun +x

Note that this change is only 'temporary.' If you are disconnected from Undernet, or if you /quit, you will need to login again and re-issue this command.

To find an IRCop, switch to your status window and type: /who 0 o
Where the first 0 is numeric 'zero.'

If there are any visible IRCops online, a list of them is printed, and those with an 'H' by their nick are "here," that is, not away.
Once you've found one that is marked as "here," politely message them and explain your problem, then wait patiently for an answer. Remember that IRCops volunteer their time to make Undernet a better place! Be courteous!
Message an IRCop only if you have real problems such as takeovers or abuse. For general problems, ask in #Help.
You may also type /motd and read the text in your status window; often the server admin will list channels in their motd where you can find oper assistance.

+r is a channel mode which restricts the channel to "Registered Users Only," meaning that only users who are logged in to X can join the channel.
If you're an operator, and you want a non-registered user to join your channel, you can "override" this mode with the /invite command:
/invite nickname #channel

Also, if you're an operator in the channel, you can unset this mode with: /mode #channel -r

The purpose of CService is to register well-established channels. Empty channels will not be registered.
In order to register your channel to receive the channel service bot X, visit to the CService site. Log in with your username and password, then click on 'Register A Channel'.
You will need the registered usernames of 5 supporters that actively use your channel.
The registration period can take 3-5 days and depends on channel activity.
For more information, read the CService acceptable use policy.

There is no single reason for a username to be suspended.
It is best to visit #usernames where staff can locate the correct solution for any individual suspension.
Usernames usually cannot be unsuspended online. It is necessary to send an email to the correct department, and to wait for the reply.
It normally takes only 24 hours or so to receive a response, however you may need to wait as long as 3-5 days for the complete resolution.

To correct DCC SEND problems in mIRC, try the following:

In the File menu, select Options.
Under the 'Connect' item, select 'Local Info'
Clear the text in the boxes marked 'Local Host' and 'IP Address'
Check the box 'Local Host' under 'On connect, always get'
Check the box marked 'Server' under 'Lookup method'
Disconnect, then connect to IRC again

If you use Windows XP, try to disable your XP firewall (or any other firewalls that you might have installed on your PC) for the moment, send, and then reactivate the firewall.
To disable your Windows XP firewall, do the following:

Right click My Network Places
Select 'Properties'
Right click the connection you're using
Select 'Properties'
Select 'Advanced' tab
Uncheck Internet Connection Firewall

If you use a router, open a range of ports in your router, for example 5000-5009, then change the default mIRC DCC port in View / Connect / Options / Advanced to the same numbers. You should consult the documentation for your router for more information on this.

If someone took over your channel, and you have logs to prove that the channel is yours, you'll have to contact an IRCop in order to get the channel returned to you.
See question 4 for information on how to find an IRCop.
Please bear in mind that there are only a few IRCops on Undernet, and usually they're very busy taking care of the network, so please, be patient. Nagging them will NOT get you helped any faster!

Yes, you can use Yahoo! Mail or other free e-mail services to register a username, but it's not recommended. It is recommended that you use the e-mail address assigned to you by your Internet Service Provider.
Your e-mail address will only be used to send you information regarding your account - for example for recovering a lost password - and never for unsolicited advertising or spam.

For virus/trojan/malware-related questions, you can ask in our virus removal channels #vh or #dmsetup.

G-Line is a network-wide ban (you cannot connect to any Undernet server). In this case, the reason you were banned, is that the server detected too many connections from your host/IP address.
Depending on what server you're using, multiple simultaneous connections from the same host or IP address or IP range may be regarded as abuse. Often, the reason for this is the use of a bnc or shell that is shared among several users.
Once the limit is reached, the host is automatically G-lined. This method is used to ensure the safety of the servers and to protect the users of Undernet from clones and floodbots.
This G-line usually lasts 24 hours, so there is no need for you to get impatient.
You can e-mail abuse@undernet.org for help.
Explain your problem, and include the exact error message from the server along with your IP address or hostname. Remember that the Undernet staff is overworked and underpaid, but they will address your problem as quickly as they can.

To add a user to your channel's access list, use: /msg X ADDUSER #channel username level
To remove a user from your channel's access list, use: /msg X REMUSER #channel username

Both commands require you to have an access level of 400 or more.
For further information about X commands, visit the CService documents page, and click 'X commands.'

What you need to understand is that channel ops may kick or ban an individual for any reason or for no reason at all.
The most you can do is to ask a channel op to unban you. To do that, type /who #channel or /names #channel and /msg or /query one of the channel ops (their nick will be prefixed by an @ symbol), and politely ask them to unban you.

Note that if the channel is mode +s (secret), or the ops are usermode +i (invisible), you will not see their names displayed. In this case, you may choose to ask a friend to join and find out the names of the ops for you. However, that may result in both you and your friend being banned. #Help cannot help to resolve these personal channel matters.
If the channel is registered, you have access there, and the ban level is lower than your access level, you can unban yourself with: /msg X UNBAN #channel yournick

If you're sure you need all those channels, though, you'll have to reconnect to another server, one that allows more channels.A list of all the servers on Undernet, including the maximum number of channels that you can join, can be found at our server list.

If you cannot log in to the CService live site, and you receive an error message saying something about cookies, you can try some of the following:

Make sure that your browser has cookies enabled. This varies from browser to browser, but is usually found under "Options," "Settings," or "Preferences."
Delete all of your existing cookies. In most browsers this option can be found under Tools/Settings or Preferences/Internet Options. Look for 'Temporary Files' or 'Cookies.'
Try to set your computer's date back 24 hours back or more. Cookies, usually, have an expiration date, and this will cause your old cookie to expire, setting a new one when you visit the site.

If you have an access level of at least 100, you can ask X to invite you to your channel. Issue the command: /msg X INVITE #channel
An invitation to a channel takes precedence over channel modes +i, +k, +l, and even +b.

Since there is no nickname registration on Undernet, nicknames are not owned. Everybody is free to use whatever nickname is available. You can politely ask the person that is using the nick to change it, or wait for that person to disconnect. To avoid this problem in the future, try choosing a unique nickname.

Ident is an old protocol that servers used to identify which user on a shared system was connecting to them. Nowadays, it is most often used to weed out clones and floodbots from compromised machines (which usually don't have identd [the ident daemon] installed). You may have seen something similar to this in your status window:

* Identd request from Oslo1.NO.EU.undernet.org
* Identd replied: 1963, 6667 : USERID : UNIX : CoolMan

This is your IRC client responding to an ident request.
Some servers require that your computer respond to an ident request, and if the server doesn't receive a reply, it won't allow you to connect.
Problems with identd usually stem from two sources: Your identd is turned off.
You're behind a firewall or NAT router.
In the first case, if you are using mIRC, just issue the following command: /identd on myusername
If you are not using mIRC, you should check your client's documentation to determine whether or not it has an identd feature, and where it's located.
The second case is more difficult to resolve. You still need to have identd enabled, but you must also open TCP port 113 on your router or firewall. To do this, you will have to consult your router or firewall's documentation.
As a last result, you can try to find another Undernet server, one that doesn't require identd. For a list of Undernet servers, see our server list.

You should read the Undernet Routing Committee's Information for Applicants and FAQ.

If your username has been registered for at least one year, you can log in from multiple hosts. Visit the CService Live page, and log in. You can change your "max logins" to 2 or 3, depending on how long your username has been registered.

A username must be at least 5 days old to register or support a channel.

You can support two channels at once.