* VRRP : handle specific interface multicast binding.
* Documentation.
* Insert LDAP, SSL, FTP, SSH, IMAP, POP, RADIUS checkers.
* Security auditing.
* Add minimum configuration verification (realserver must have
  a checker defined, ...)
* Add system verification (must have LVS support in kernel, 
                           must have netlink support in kernel,
                           must have ip alias support in kernel,
                           must have routing messages in kernel).
