Re: About WiFi7

My WZR-1750DHP DD-WRT wireless access points (WiFi 5) work fine for mobile devices and likely will for years to come.

Anything serious uses wires.

Where will the other end of the wireless link to/from your device be?

Not all of us live in places where it never snows. Heavy rain can cause issues.

I'd have used CAT6

I'd have used a business class firewall.

I see about 20 wifs's from my office, two wide-open. I guess we didn't need to get our own internet connection.

We hung a big TV on the wall next to a big whiteboard, for conferences. It took about 10 minutes mucking with the TV remote to get it to accept an HDMI input. Layers and layers of ads and services and terms-and-conditions nonsense to get past. The whiteboard just worked.

Pretty much everything is on all the time here. Servers have to be or they won't be serving. And why would I want to wait while Windows says "You will not turn off your computer for half an hour while I update". Windows boxes which are mostly turned off invariably spend the next hour installing updates when they are turned on.

Networks are safe if configured properly whether wired or wifi. While it's not likely that an unauthorized user will be able to get directly on my LAN, that does not by itself mean that they could obtain information I don't want them to have.

If you leave your systems off for anti hacking reasons then you have effectively caused a denial of service attack against yourself.

The dish on the roof? I points to some other MonkeyBrains dish somewhere and all that eventually connects to some fast fibers somewhere, I guess.

We're getting about 80+40 Mbits speed, which is OK I guess. This office is down in a village low in the Alamany Gap so the microwave optics isn 't great.

At our main office we have much better line-of-sight (maybe 10 square miles visible from the roof) so it gets about 500+500.

It doesn't snow in San Francisco and heavy rain is a rare novelty. Our main meterological feature is fog.

The worst possible wimpy wire unshielded CAT5 (or maybe it's cat 0.5) wiring is already buried in the walls.

One of my admin ladies also flies drones! She's going to fly around our roof and film the dish and the HVAC stuff and various views. She wants me to teach her how to use power tools. Her husband is not "handy."

We'll be developing a new product line of PoE powered instruments, so everything we're installing is PoE. That's a great concept.

Several people make tiny surface-mount PoE pickoff power supplies that do all the nasty negotiation for you.

Not much use on the move so I think cell towers will be with us for some time. And it does snow in some areas so dishes can be a problem in winter.

Ok if it's the only option but it doesn't compare with the fibre connection I have, and that's in a rural area.

...

My house has a fixed IPv4 address (they tried to put me on lsn/cgnat but we needn't go into that). I use it for everything including Internet facing servers. Why would I need anything else?

The last PoE powered board I designed used LTC4267

Sure you do. How is my phone going to be online? Cell tower access for Internet is not reliable here. I use wires for what can use wires and wifi for anything which cannot sensibly be on a wired connection such as a phone. All wired connections and wifi access points are on all the time.

Someone else mentioned cars. I prefer to keep my car off wifi. No need for the car to use it.

We'll upgrade to cable or fiber if we need to. We have a sort of personal relation with the MonkeyBrains guy, and their support is great.

They email us to tell us if our service is out!

I'd put a camera in the garage for that. PoE Wired.

What does my ISP have to do with packets traveling between devices on my LAN??

I don't and won't use cameras which bounce off the manufacturer's servers outside my LAN.

What specific antenna or data communication means are you referring to?

But I don't see how an air-gapped network is a network. I would not be able to get anything done.

Paranoia does have a lot to answer for in the cybersecurity world.

I came across an individual with three virus scanners installed a few days ago. I didn't bother giving advice, I just left them to waste hours running scans. I did ask when they last found a virus and was confidently told "never".

You haven't got a network if you need physical access. You have to be there.

I could be writing this post from one country today and another tomorrow. Countries I never go to (Mostly non-English speaking countries) are blocked inbound by pfsense. That leaves "hackers" in USA and a few other countries who go on a pfsense blacklist if they are persistent. They aren't going to guess the password anyway but I don't like my logs cluttered with obvious password guessing attempts. A quick look at the firewall log shows that I'll probably add this one to the blacklist

Not sure what you mean by that but Tor is ready for any site I don't want to "identify" to.

That's usually because management don't know how anything works. and those who do prefer an "if it aint broke don't fix it" approach to avoid upsetting management with system downtime. Sometimes it's because the installation instructions for say, a database server, are followed and everything seems to work fine. But no-one pays attention to where inbound connections to 3306 might come from.

Oh I have, for a long time. So for me I can work from anywhere I might need to work from as if I was here, and all my files are here (not in any cloud).

I've never had a malware issue, well not since I accidentally put an unpatched Windows 2000 box on a raw connection and got nimda. Since it was a fresh install it didn't matter. It was quickly wiped.

That reminds me of being somewhere around ten years old watching a family show with my parents. The picture was suddenly replaced by snow and the FM rushing noise (no mute then) came through the speaker.

I said "Oh no the transmitter's gone off". My mother said "You'd think they'd put a caption up to tell us that".

Telepathy? Why does it matter? If my garage door didn't open I'd park outside the garage and then investigate why.

I don't care much for phones but can't deny they have their uses.

Why would anyone need to see inside their garage as they approach from down the street??

Sure but is that by WiFi, bluetooth, or direct connection or does that depend on the car? If the location which does my oil change is uploading my driving habits to the car manufacturer then I would certainly like to know about that.

I don't have anything open to potential adversaries.

So do I.

I can use mine from any country I'm likely to be in.

Every few minutes, and I can do it all from where I sit, even if I go to another country.

Same here. Just the default Microsoft scanner.

Well if you put yourself in prison you're not likely to be bothered by much from outside.

Plenty of people have physical access to my network. Most of them wouldn't know a switch from a banana. Those who would are trusted people. Untrusted people who might know what a switch is are simply not allowed anywhere near my physical LAN.

Because you'd have missed your flight by the time you find and install one and what if you need that data sheet you left on your office computer? Sure you can download it but was that LT1234 or LT2341 or LTC1324? and what if you'd really like to have the LTSpice simulation you did at the office?

LOL these people maintain it for me:

Fairly sure yes. I can tell because You Tube doesn't offer relevant (or so it thinks) videos whenever I restart my browser.

Human nature isn't going to change any time soon.

Depends on what I'm designing and what it will be used for.

Oh yes I get plenty of packets from compromised machines where the perpetrator is hidden by that machine. But they still can't open a properly locked online door no matter how many keys they try.

Only in Paranoia land. In reality they are accessible only to those who should have access.

Of course. Why shouldn't I work from anywhere as if I was here? I can have immediate access to anything I might need to show a potential customer without needing to remember to copy it to my laptop. I can have a quiet day in the library doing exactly the same work I do here with the same tools and the same data. I can work from a hotel room just as if I was here.

I was away last weekend but could work as if I was here. One individual's error is another individual's way of doing things.

I think maybe you should get some glasses which, at the first hint of danger, turn totally black. This preventing you from seeing anything which might alarm you.

Never mind.

How would you know in advance that the door wasn't going to open on your command? How would you tell her? By phone? Isn't that inconvenient? I would put the freezer in the house and make sure the garage door is not obstructed by dogs or anything else. Problem solved.

Sorry but I'm beginning to wonder whether you live on the same planet as me.

By what means? Please describe the specific communication channel the car is using when it uploads my driving habits to the manufacturer.

By what communication channel?

Jamming GPS isn't hard but we needn't go into that.

You must be popular with visitors.

You have very clever houses in your area. I prefer to adjust the lighting when I'm at home, not from half a mile away.

Is this the secret car communication network I'm not aware of? I think maybe I'll just park my car in a Faraday cage.

Actually just a quote from HHGTTG