9 votes

What is TCP/IP and how does it work? A simple explainer, suitable for upcoming family tech support time

Posted by asteroid
Tags: tcipip, networking
https://www.avast.com/c-what-is-tcp-ip

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Title
What is TCP/IP and How Does it Work?
Word count
1427 words

4 comments

  1. [4]
    0d_billie
    Link
    Am I right in feeling that this is a bit disingenuous? Doesn't HTTPS secure your data packets? Edit: This video from Tom Scott seems pretty relevant, IMO.

    Are my data packets private?

    No. When the packets are being transmitted between computers, they are vulnerable to being seen by others. That’s one reason why you are advised to avoid public Wi-Fi networks when sending data that must stay private, and to use encryption.
    If this is something you are concerned about – for example, if you’re sending personally identifiable information or financial information – you can encrypt your data using a virtual private network (VPN).
    A VPN is the best way to ensure your data is effectively encrypted and packets are protected as they travel between networks. You can set up a VPN manually, or better yet, try Avast SecureLine VPN for free.

    Am I right in feeling that this is a bit disingenuous? Doesn't HTTPS secure your data packets?

    Edit: This video from Tom Scott seems pretty relevant, IMO.

    2 votes
    1. sron
      Link Parent
      You are right. They're just trying to sell you stuff.

      You are right. They're just trying to sell you stuff.

      You can set up a VPN manually, or better yet, try Avast SecureLine VPN for free.

      2 votes
    2. stu2b50
      Link Parent
      Yes, https will protect data (though not packet headers, so people still know who you're talking to) but tbf that's on application, not transport layer like tcp is.

      Yes, https will protect data (though not packet headers, so people still know who you're talking to) but tbf that's on application, not transport layer like tcp is.

      1 vote
    3. gpl
      Link Parent
      Yes, but it can be dangerous to assume you are always communicating over HTTPS. There can be situations where malicious actors can get your details if, for example, a login page is served over...

      Yes, but it can be dangerous to assume you are always communicating over HTTPS. There can be situations where malicious actors can get your details if, for example, a login page is served over HTTP even if the details you enter into the page are sent over HTTPS (by intercepting and modifying the endpoint for example). But overall you are correct that HTTPS provides end to end encryption and should be safe if used properly. The quoted portion of the article honestly seems like a way to fit in an ad for a VPN, which given the source makes sense.

      1 vote