Re: ISP router [Was: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use]

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From	candycanearter07 <candycanearter07@candycanearter07.nomail.afraid>
Newsgroups	comp.os.linux.misc
Subject	Re: ISP router [Was: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use]
Date	Fri, 29 Aug 2025 19:40:03 -0000 (UTC)
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Lawrence D’Oliveiro <ldo@nz.invalid> wrote at 23:12 this Saturday (GMT):
> On Sat, 23 Aug 2025 11:23:52 +0100, The Natural Philosopher wrote:
>
>> The OSI model was just more academic spaff. Most hardware/software
>> broke that model anyway.
>
> Not sure what a better alternative is, which is why still use it, or
> at least parts of it. My interpretation:
>
> Layer 0
>     -- the laws of physics. Our starting point for building everything
> Layer 1
>     -- the physical connection. Might be a wire, might be radio waves,
>        cans connected by string, whatever.
> Layer 2
>     -- the point-to-point communication protocol
> Layer 3
>     -- routing layer
> Layer 4
>     -- end-node-to-end-node communication
> Layer 5
>     -- process on one node communicating with process on another node
> Layer 6
>     -- not really meaningful
> Layer 7
>     -- the actual applications the user wants to run
> Layer 8
>     -- the human user

So you're saying a Social Engineering attack could be called a Layer 8
attack?

> If you look for example at IEEE802, then that’s kind of a split across
> layer 1 and layer 2. IEEE802.2 defines the MAC layer, with those “MAC
> addresses” we’re all familiar with, which is point-to-point but
> hardware-independent. Then IEEE802.x for x ≥ 3 defines all the various
> options for a hardware-dependent layer under that. E.g. 802.3 is (near
> enough) what we call “Ethernet”, 802.11 is wi-fi, and so on.


So that's why wifi is called 802.11 sometimes, cool!
-- 
user <candycane> is generated from /dev/urandom

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Re: ISP router [Was: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use] candycanearter07 <candycanearter07@candycanearter07.nomail.afraid> - 2025-08-29 19:40 +0000
  Re: ISP router [Was: Yes, You Need A Firewall On Linux - Here’s Why And Which To Use] rbowman <bowman@montana.com> - 2025-08-30 05:59 +0000

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