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You're reading from  CompTIA Security+: SY0-601 Certification Guide - Second Edition

Product typeBook
Published inDec 2020
PublisherPackt
ISBN-139781800564244
Edition2nd Edition
Tools
Kali Linux
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Cybersecurity
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Author (1)
Ian Neil
Ian Neil
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Ian Neil

Ian Neil is one of the world's top trainers of Security+. He is able to break down information into manageable chunks so that people with no background knowledge can gain the skills required to become certified. He has recently worked for the US Army in Europe and designed a Security+ course that catered to people from all backgrounds (not just IT professionals), with an extremely successful pass rate. He is an MCT, MCSE, A+, Network+, Security+, CASP, and RESILIA practitioner that has worked with high-end training providers over the past 23 years and was one of the first technical trainers to train Microsoft internal staff when they opened their Bucharest Office in 2006.
Read more about Ian Neil

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Insecure Protocols and Their Use Cases

In this section, we are going to look in detail at the different insecure protocols. As most protocols use TCP ports, this chapter will only mention the UDP ports, and therefore you can assume that if something is not labeled UDP, it is TCP. We will look at the unsecure protocols and their use cases:

1a

Let's look at each of them:

  • FTP: Transferring files is a common function. When we purchase an e-book, it is immediately available to download onto our desktop. If I wish to upload files to a web server, I would use FTP on port 20, but the more common use is to download files using port 21, which is known as Passive FTP. The downside of using FTP is that the transfer is done using clear text, so a packet sniffer could view the information. It could be replaced by secure protocols such as SFTP or FTPS.
  • Telnet: This is a protocol that was first used in 1973 to run remote commands on devices such as routers...
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CompTIA Security+: SY0-601 Certification Guide - Second Edition
Published in: Dec 2020Publisher: PacktISBN-13: 9781800564244
© 2020 Packt Publishing Limited All Rights Reserved

Author (1)

author image
Ian Neil

Ian Neil is one of the world's top trainers of Security+. He is able to break down information into manageable chunks so that people with no background knowledge can gain the skills required to become certified. He has recently worked for the US Army in Europe and designed a Security+ course that catered to people from all backgrounds (not just IT professionals), with an extremely successful pass rate. He is an MCT, MCSE, A+, Network+, Security+, CASP, and RESILIA practitioner that has worked with high-end training providers over the past 23 years and was one of the first technical trainers to train Microsoft internal staff when they opened their Bucharest Office in 2006.
Read more about Ian Neil

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