Syntax: ZLINE ADD IP reason
        ZLINE DEL IP

ZLINE is a powerful banning utility. It works the same
way as the ircd /zline command, except it is added to
all servers. Services ZLINES may be viewed via
/STATS K (will be shown as S:IP).

ZLINES are similar to k:lines, but are much more powerful.
A ZLINE will not allow any users from the specified IP,
very useful to prevent vhost evading/cloning.
Many abusers evade bans by using vhosts which can be found
on the same C-class IP. Wild cards are valid, for example,
adding a ZLINE for 200.200.200.* is legal, preventing all
users from that C-class IP.

When using the ADD command, the reason MUST be
specified.
This command is limited to Services Admins.
