I'm a big fan of IPv6 and enable it everywhere I can, HOWEVER, there is a problem when it comes to firewalling. SLAAC is basically a requirement, since so many things don't support DHCPv6 (such as Android). So now how do you block or allow access to/from a device using SLAAC, especially if that device uses privacy extensions? Device addresses are unpredictable and change frequently.

Then you get issues with things like Matter devices, which only work on link local IPv6 addresses. You can't segment them into separate vlans, everything has to be in the same vlan. For something like Home Assistant, it means adding a second interface for that vlan, but if you want to use Google Home or Apple, now you need to move one of their devices into that vlan too. ULA addressing and Avahi don't work, it's link local only.

I assume that you mean x-ray scanners, not metal detectors? Metal detectors shouldn't emit anything.

I do the same, but it appears that at least Movistar in Spain is doing DPI and blocking the requests to the authoritative servers for "prohibited" domains. Movistar also will block Cloudflare IP ranges that have been used to pirate content, taking out a lot of legitimate sites as well for hours or days. It's very frustrating.

Businesses that scan your drivers license will then be able to start accepting it (chicken and egg problem). It can also likely be used for TSA. You can add your passport on Android, and it's not valid for international travel (and shows no personal info at all on the screen), but it activates the NFC chip and will transmit the passport info that way. TSA apparently have scanners at the agent that you can tap and the ID shows on their screen. I haven't tried it, but I've seen the scanners at every TSA ID checking station that I've been through for the last year or so.

Basically they're developing the ability to store it there, giving the possibility for it to be used in the future in some instances. It's the same for NFC payments actually. Just yesterday I was at the airport and was buying food at a restaurant. They said tap to pay was broken, chip only, so I had to dig through my bag to find my physical card. You still need to carry a physical card with you for backup purposes like this, same as with the ID.

You can still do it, at least with the Contacts app on Android.

I would hope that by this point, with all the subway systems worldwide, that there would be some type of standard, so that manufacturers and suppliers are interchangeable. Or if not, you mandate that part of the contract is to give you the specs to be able to contract someone else to produce an alternative (with maybe a 10 year exclusive agreement to purchase from the original contract winner). There are ways to solve this.

Plus, the manufacturer would likely be using chips made using off the shelf components that they just assemble. Ordering replacement boards, assuming that you have firmware and other necessary bits, should be relatively easy to contract out.

Early on, Chrome was much better. Firefox had gotten pretty bloated and slow. I remember how refreshing it was to have a lightweight browser that was fast, and was excited when the Linux build came out.

In my case, I also live on a higher traffic street that has a decent amount of street noise (stop sign is in front of the house). Any time a louder truck or something drives past, chances are I can't hear the dialog unless it's turned up very loud. Even just normal cars accelerating from the stop sign cause problems at times. I have a surround sound setup, and I have the center channel at least 2x the volume as the other channels, to try to make dialog louder, but it's sometimes not enough. In places I've lived, if the windows are open you can't hear the dialog due to the street noise (but those would good sound isolating windows).

In many cases I just resort to using noise cancelling bluetooth headphones. Really annoying, because sometimes bluetooth will cut out briefly and then get desynced, but at least I can hear the dialog at a normal volume.

Unfortunately it doesn't seem to apply to international flights (which I take the most). International mostly uses Panasonic, which wasn't a partner for T-Mobile's free wifi either. It's $25 or $30 for wifi, and very spotty and slow. That being said, I have been on a couple AA international flights recently that were upgraded to Viasat, and there they were charging I think $10 or 800 miles.

Meta absolutely does analysis on decrypted messages. There have been many times when I'll make a joke or say something to a friend via Whataspp, and then within 10-15 minutes, I'm getting ads on Instagram for that very thing. It's even become a joke amongst my friends, since it happens so often.

I don't understand why the providers are in such a rush to shut it down. WIth 3G I understand, because it has a fixed 5 Mhz carrier size and they want to refarm this to LTE or NR where it can actually be used. It's a waste of spectrum when so few people use it. But 2G can fit in the LTE internal guard bands (T-Mobile US does this). So it takes away no spectrum from LTE or NR. Tower equipment still supports it, and to my knowledge it doesn't diminish or reduce performance or capabilities for 4G/5G. The only downside I guess is that they need to keep the 2G core online. So why the rush to shut it down?

My guess is that current GPS jamming doesn't just sprew garbage over the frequency, but rather is more strategic and results in a location being calculated, but it's the wrong location. In introduces error, so you might be say 5-10 or more miles off from where you think you are. Perhaps this is done by messing with the time that's broadcast, and could be corrected by having a referenced local time.

Many NTP servers use GPS for time. So if you get a position lock with GPS, and the time it calculates is different from the time of your local atomic clock, you know that it's being spoofed or jammed, and perhaps can use the local atomic clock time to undo the error introduced by the jamming.

Yes, this was a weird thing to me in Spain. People were shocked that I didn't carry an ID, because it's required there and I didn't know. I never considered it unless I was going to a place that checked ID (no bar or club checks ID in my experience), or was driving. Otherwise I didn't see a reason to carry it.

It just means that your auto renewal is working. The emails have helped me a couple times years ago, when for whatever reason the certificate wasn't updating. More often though I'd get false positives when I'd add a subdomain to a certificate. This replaces the certificate with a new one, and you get the automated emails for the old certificate when it's ready to expire.

Exactly. And if they aren't ready to go full PON for an area, things like RFoG work as a temporary solution until you have all the coax replaced.