MaxConnectionsPerHost number|none [message]]
server config, <Anonymous>, <VirtualHost>, <Global>
1.2.11rc1 and later
The MaxConnectionsPerHost directive configures the maximum number of unauthenticated clients allowed to connect per host. The optional argument message may be used which will be displayed to a client attempting to exceed the maximum value. If message is not supplied, a default message of "Sorry, the maximum number of connections (%m) from your host are already connected." is used.
MaxConnectionsPerHost 1 "Sorry, you may not connect more than one time." Results in: 530 Sorry, you may not connect more than one time.