(PECL event >= 1.2.6-beta)
EventDnsBase::addNameserverIp — Adds a nameserver to the DNS base
ip
    
      The nameserver string, either as an IPv4 address, an IPv6 address, an
      IPv4 address with a port (
      IPv4:Port
      ), or an IPv6 address with a port (
      [IPv6]:Port
      ).
     
