Ok,the DNS server is what resolves host names a domains outside of the local network the DNS protocol operates on the application layer of the osi model so you can have a tcp connection but without a DNS server to resolve host names you wouldnt be able to connect to any other network or view websites over the internet so by default all routers and firewalls accept any DNS traffic over the network as normal becuase if all udp packets had to be stopped and analyzed the network would backup and cometo a grinding halt how ever any (good) network administrator would see the elevated bandwidth usege,open up a netstat session and sever the connection this is just a basic concept but i would apreciate any elaboration on this subject and what if any client software exsits for this kind of exploit ?

What, good Sir, did you just say? Learn English, it'll help you in life greatly.

Have you heard of a period? You know, the thing that looks like this: "."? It can be quite useful to separate ideas that are different; thusly increasing everyone else's ability to grasp the concept/question that you are posing! Please edit your post and add some proper punctuation or be prepared to get ripped on

Much obliged,
Learn English

PS what the fuck are you even trying to say and or ask?

well my question was,is there any client software avalible to execute a dns tunnling exploit or would it be something that you would do with putty or through basic telnet? and also what port does the DNS protocol utilize? <--- just makin sure you see the question mark,God forbid any one getting offended at poor grammar.

No, it's not that we're being offended by poor grammar, it's that with poor grammar comes illegibility. Which is bad.

As for your question, one of the more common DNS tunneling programs available is OzyManDNS.