• 19 Posts
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Joined 2 years ago
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Cake day: July 4th, 2023

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  • Having been on the other end of this situation before, I’m going to disagree with this take. On a normal network, yes - you have a firewall to block traffic except to specific IPs/ports. Once you are in the Millions of nodes realm though (and I only ever got into the hundreds of thousands), a firewall is too unwieldy. You can never keep it up to date with all your customers comings and goings. Imagine you have 10 million customer devices and 0.01% of them come or go on any given day. That’s 10,000 firewall updates per day. You’re spending a lot of tech time maintaining and updating that firewall, and you introduce a small risk of an incident with every firewall update. And for what? For the most annoying of your customers.

    Sorry to be blunt, but it’s true. The tiny proportion of customers who want to be able to remotely connect to their home networks are the first to complain about any sort of network congestion (particularly uploads, which regular users don’t even notice). They make a lot of noise about every $5/month price increase. They are the most likely to be doing sketchy stuff on the network. And six months down the line when there’s some new exploit, they’re the most likely vector into the network of the latest worm as they didn’t maintain their security updates diligently. It is far easier to simply not cater to them and let them be someone else’s problem. As customers, they aren’t profitable.

    You handle this by putting your static IP customers on a special VLAN and charge them for the service. And then yes: you have a manageable firewall sample.


  • All the noise that happened recently with the 3G shutdown tells us just how many old phones there out there on the cell networks. Running old iOS/Android versions with a gazillion exploits. I think it’s a good thing that telcos NAT their customers. The last thing we want is for the Internet to be able to easily connect to those devices.

    ipv6 does also reduce network congestion and improve routing efficiency.

    Unless you are moving gigabits of data, you won’t notice the difference the smaller header payload of ipv6 offers. That’s some serious ePenis bragging bullshit I see all the time among nerds who want to say they’re on the latest and fastest technology without understanding that while they are correct (uploading/downloading a gigabyte over ipv6 will probably complete a few seconds faster over ipv6 instead of ipv4), they’re also making a big deal about nothing.

    Your issue is you want to be able to access your home network over mobile infrastructure, while you are paying for a basic phone plan. Optus does offer what you want, but to business customers. Telstra will also permit you to apply a static IP to some of their plans, I managed to do this for a client about 10 years ago. It was just an add-on that Telstra offered. They were on a business plan, but I don’t remember whether a business plan was a requirement.








  • The whole start to Graceland by Paul Simon is pretty vivid:

    The Mississippi Delta Was shining like a national guitar.
    I am following the river down the highway through the cradle of the Civil War.
    I’m going to Graceland, Graceland - Memphis, Tennessee
    I’m going to Graceland

    Poor boys and pilgrims with families and we are going to Graceland
    My traveling companion is nine years old he is the child of my first marriage
    But I’ve reason to believe we both will be received in Graceland

    I have never been to Tennessee. But this intro really conjures up some vivid imagery of driving down a highway through some historic country, along a river in the company of a child - and being among many others going to the same place.

    It’s pure poetry.






  • The biggest problem I see with this is the scenario where calls are recorded. They’re recorded in case we hit a “he said, she said” scenario. If some issue were to be escalated as far as a courtroom, the value of the recording to the business is greatly diminished.

    Even if the words the call agent gets are 100% verbatim, a lawyer can easily argue that a significant percentage of the message is in tone of voice. If that’s lost and the agent misses a nuance of the customer’s intent, they’ll have a solid case against the business.


  • I did phones in a different century, so I don’t know whether this would fly today. But, my go-to for someone like this was “ok, I think I see the problem here. Shall we go ahead and fix it or do you need to do more yelling first?

    I can’t remember that line ever not shutting them down instantly. I never took it personally, whatever they had going on they were never angry at me personally.

    Then again, I do remember firing a couple of customers (“we don’t want your business any more etc”) after I later became a manager and people were abusive to staff. So you could be right, also.