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About Tejas Natu
Expertise
I can answer all questions for the following topics:
Lan Design, Isdn configuration, Frame-Relay, Routing & switching,
Vlan Configuration,OSI model,Tcp/Ip,Subnetting
Experience
Over 4 and a half years experience in the IT industry, worked in various roles such as Network Engineer, Technical Support Team Leader, Voice and Datacom Team Manager. Currently working as a Network Design Consultant for a ISO certified & SEI-CMMI Level 5 company.
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You are here: Experts > Computing/Technology > Communications/Networks > General Networking/Lan/Wan > Linux
Expert: Tejas Natu - 10/21/2009
Question
Hi,
I understand that Domain Name Service (DNS) and File Transfer Protocol (FTP) deal with a Linux server. My question is, how are they used, and like how do they interact with TCP/IP?
Answer
Hello,
DNS and FTP are protocols which are the part of the ISO 7-layer protocol stack. FTP is an application layer protocol while DNS is a layer 4 protocol, thus it falls under the transport layer protocol.
Every packet that these protocols use have to traverse all ISO layers and thus they also pass through the TCP/IP protocol, FTP in particular, as that uses TCP as the transport layer whereas DNS uses UDP as the transport layer.
Regards,
Tejas Natu
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