On Mon, Feb 21, 2011 at 02:07:00PM +0800, Liong Kok Foo wrote: > Sorry for my noobness, but could you explain on what you mean by > local packet filter? Do you mean firewall? If yes, then what port do > I look? FYI, I have open port 53 tcp/udp for outgoing and incoming. You probably have iptables on your server itself blocking port 53. Bert