This will place a kline on all servers that are connected to your server, thus preventing someone from logging into the entire network. You can use the nick for a user who is currently on the chat network and the network will akill that user's address. You must include a reason for the command to work. Note: If a server is split off when the akill is placed, it will not be present on that system. To get a list of akills on your server do a /stats k and look for the lines that are prefixed with A: instead of K:. See rakill and unakill to remove an akill. Akills must end with either text, or the time param.
Example:
/akill lamer@pm02.digex.net spamming 50
/akill Rachel flooding
An akill is a way of banning someone from the chat network. It is a last resort when warnings and kills did not keep the person from misbehaving. An akill works basically the same way that a room ban works, except that it prevents someone from logging into the network rather than from just joining a room.