Tcp/ip for dummies by Candace Leiden

By Candace Leiden

Packed with the newest info on TCP/IP criteria and protocols

TCP/IP is a scorching subject, simply because it is the glue that holds the web and the net jointly, and community directors have to remain on most sensible of the most recent advancements. TCP/IP For Dummies, sixth Edition, is either an advent to the fundamentals for newcomers in addition to the right go-to source for TCP/IP veterans.

The ebook comprises the newest on net protocols and new undefined, plus very well timed details on how TCP/IP secures connectivity for running a blog, vlogging, photoblogging, and social networking. step by step directions assist you to set up and arrange TCP/IP on consumers and servers; construct safety with encryption, authentication, electronic certificate, and signatures; deal with new voice and cellular applied sciences, and masses more.

  • Transmission keep an eye on Protocol / web Protocol (TCP/IP) is the de facto normal transmission medium all over the world for computer-to-computer communications; intranets, inner most internets, and the web are all outfitted on TCP/IP
  • The booklet indicates you ways to put in and configure TCP/IP and its functions on consumers and servers; explains intranets, extranets, and digital inner most networks (VPNs); offers step by step details on development and imposing safety; and covers all of the latest protocols
  • You'll how to use encryption, authentication, electronic certificate, and signatures to establish a safe net bank card transaction

Find functional defense information, a brief commence protection advisor, and nonetheless extra during this functional guide.

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Extending Intranets to Extranets Intranets are the building blocks of extranets. If part of your intranet is available to people outside your organization, such as customers and suppliers, the part you share with the outside world is an extranet. An extranet has these characteristics: ✓ It consists of multiple, interconnected intranets/internets. ✓ An organization’s extended family of partners work together electronically. ✓ It might not exist physically — it’s a virtual network. Because an intranet is a private network within an organization or a department, you might find a few different intranets in a large institution.

IMPP: Instant Messaging and Presence Protocol Although instant messaging (IM) is a handy application for people to send quick messages back and forth across the Internet, IM vendors have traditionally used different, proprietary protocols that don’t work together. The goal of IMPP is for different IM applications to be able to talk to each other easily across the Internet. SIP: Session Initiation Protocol SIP is a protocol for connecting multimedia sessions — such as voice, chat, games, and video.

One or more packets may get dropped while on their trip from the source to the destination. IP doesn’t care — TCP takes care of it. Figure 2-6 shows how an e-mail message is “packetized,” or sent across the Internet and reassembled. Just like a spoon, TCP ensures that nothing is dropped, no matter what kind of data you’re sending. TCP uses IP to deliver packets reliably to those upperlayer applications. Two of the most important TCP functions are ✓ Error checking: Ensures that every packet arrives undamaged ✓ Sequence numbering: Puts the packets back into the right order.

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