To Client Protocol is a set of tools for requesting information about another user. Not all client software supports all of the CTCP services. DCC Direct Client Connection is a method for sending files or having a private chat with another user. A direct link is set up between the two clients and the normal IRC method of routing information is bypassed. Flooding Flooding is caused by sending large amounts of information, which creates problems on the network, as well as being very annoying to other users.
Some people come into a channel and flood it just to be disruptive.
These people often come to the attention of the IRCops. Host The particular server at an ISP to which the client is connected. MOTD Message of the day. This is the informational screen you see when logging into an IRC server. It may have warnings and rules for that particular server, along with advisories about available ports, system adminstrators, scheduled down times, and so on.