If you thing SPF as made a difference to the amount of spam being sent I have a bridge to sell you.

SPF was never about preventing spam. It has only ever been about preventing your email address being used as the from address in spam. It reduces the amount of blowback to your account and nothing else. The only reason SPF appears to be a effective anti-spam tool is that there is that the number of sites filtering using SPF hasn't risen to the level where the spammers need to stop using SPF protected address as the from addresses.

Another thing SPF does is cause spammers to use hijacked credentials to send spam through legitimate sources.

This shouldn't be seen as a reason to stop using SPF records. But if you think SPF will stop spam you are deluding yourself.

Sheep.

Fish.

Bacteria.

Not all plurals end in 's'.

It's very much dependent on the current path. Hand to foot and you have a good chance of survival. Hand to hand and your survival rate drops. Additionally whether you pick up the live object or brush the live object affects your survival rate.

Having brushed a live 240v connector with the back of my hand, and survived, I never want to do that again.

Correction: "Telcos don't use ethernet to get to your house."

Copper can carry Gbps 10s of meters. Fibre can carry multi Gbps 100s of kilometres. You use copper inside the house and fibre to the house.

Telcos use ethernet to get to your house. They use DOCIS, xDSL or even POTS. All of these have a modem of one description or a another that converts what they use to externally to something else (usually ethernet) for use within the house. Fibre still goes to a box that converts it in a similar manner to what a Cable modem (DOCIS), xDSL modem or a voice modem (POTS) does.

You don't fill it out on the plane anymore. You fill it out in advance electronically. It been like this for several years now. The resulting approval lasts 3 years (from memory) having had to do this several times. It used to be free but now it costs.

I'm not sure about Canada but to get a Visa Wavier from Australia for the US you get asked about you mental health when filling it out. If you had attempted to commit suicide and you are still on medication for the condition, then I can't see how you can tick the no box and not be lying. I presume you would them be informed about the extra procedures you would need to complete to enter the US.

What I am trying to work out here is how she got to the border without this being flagged earlier.

While most do sit around idle there are still many that are busy all the time like TLD and ISP servers. Switching to TCP only will seriously increase their costs and mean additional machines to maintain the normal query loads supported over UDP. Lots of extra packets. Lots of extra state. Lots of extra sockets to manage.

RRL discriminates caching resolver vs some classes of malware. It is only a stop gap measure.

Firstly IP level fragmentations problems are self inflicted. IP fragments get though fine if you haven't put up a firewall to block them.
Even with fast open one needs vastly more compute power to support DNS over TCP to the equivalent level of DNS over UDP.

cookies needs more work though as a general idea it is the way to go.

Ingress filtering is possible to deploy and it doesn't have to be a perfect filter or require universal deployment to be helpful. Just reducing the number of machines that can send spoofed traffic or reducing the range of addresses that can be spoofed is useful. Often perfect gets is the way of good enough to be helpful.

No, they check that you have turned up and that you put the ballot paper in the ballot box. You state your name and address without providing formal identification.

Does growing drugs present a direct and immediate threat to others?

Driving impaired does even if you are not obviously weaving all over the road.

And the road side test is a preliminary test. The evidentiary test is performed on different, calibrated equipment after a period of time that is sufficient to address the issues of mouth alcohol being present at the preliminary test. You can also ask for a blood sample to be taken if you are worried that the evidentiary equipment is faulty / mis-calibrated. This is done by medical personnel.

You really need to lookup what harass means.

Random breath tests, when properly implemented, don't fall within the definition of harassment.

Your licence to drive a car on the road is conditional on you being sober / no impaired. This is something you agree to when you get/renew a licence. You make a choice to get/renew your licence. You make a choice to drive drunk/impaired. There is no one forcing you to get behind the wheel.

Now if you are unlicensed then you haven't agreed but you are still committing a offence.

McDonalds' free WiFi basically doesn't work in Australia. Just about every time I've tried it times out talking to the authorisation server and if you succeed in getting authorisation there is no bandwidth to speak of.