That's not how TTL works. Or do you mean propagation after changing an existing RR?
It's "common" to lower a TTL in preparation for a change to an existing RR, but you need to make sure you lower it at least as long as the current TTL prior to the change. Keeping the TTL low after the change isn't beneficial unless you're planning for the possibility of reverting the change.
A low TTL on a new record will not speed propagation. Resolvers either have the new record cached or they don't. If it's cached, the TTL doesn't matter because it already has the record (propogated). If it doesn't have it cached, then it doesn't know the TTL so doesn't matter if it's 1 second or 1 month.
This is what the NETMAP target in iptables is for - map an entire subnet to another subnet, including the reverse. We were doing this 20 years ago for clients trying to on-board other companies that they'd bought. It's horrible, but it does solve the problem in a pinch.
I do not understand this rhetoric of Apple hardware being so amazing. The only moderately impressive thing they've done for years is the M chips. Beyond that, it's just crippled, overpriced, and unrepairable.
They have shiny cases, yay. I'll take my ugly Thinkpad and actually get shit done over a shiny case and glossy screen.
We just got a whole bunch of new radios for fire brigade in our state. Every radio has a SIM and fails over to the public cell network if the primary (licensed) network is unavailable.
Which ironically is one of the first networks to fail when we have widespread storms etc.
Visual distraction in IDEs is amazing. I see my co-workers using Visual Studio or something, and I can't even identify the code they're working on among the mess of the screen. There's so much going on. The clean and pure display in vim in my terminal let's me just focus and get shit done. I honestly don't understand how they get anything done, but to each their own.
While you're technically correct, what I gathered from their experience is the consistency of usage, between not only their own projects but third-party projects too.
They could make technical improvements to their own Makefiles, sure. But it's more about being able to enter a project and have a consistent experience in "getting started".
I recall working on a PICK D3 system, which was a "multivalue" database. Each field could have multiple values, those values could have sub values, and a third level beyond that.
Values were separated with char(254), subvalues were separated with char(253), and the third level were char(252) separated.
It was... unique, but worked. And to be fair, PICK originated in the 60's, so this method probably evolved in parallel to the ASCII table!
I remember as a kid loading up the Encarta95 CD on the family 486, and the anticipation of what I could discover in the seemingly endless world of information that little spinning silver disc held within.
The very first HTTP based application I inherited was an internal system served by Apache on a Windows "server" using CGI to a "backend" written in VB6...
We would write the code in VB, compile the exe file (files? I forget), and FTP them to somewhere in c:\program files\
Pretty sure that system was a result of "when all you have is a hammer" from the previous IT manager.
The Australian government funds childcare. Every time they increase funding, the rates charged to parents increase by the same amount. Total conscience I'm sure.
My wife just stayed working full time because we need the money to afford our mortgage after interest rate rises. Almost 90% of what she earns goes to pay for childcare, and that's with her mother looking after our kids one day a week. If we had to pay for a full 5 days, it wouldn't be worth her working.
We still use pagers for emergency response alerting (Victoria, Australia). It's a dedicated, reliable alerting system that ensures the alert goes out between the emergency call takers and first responders.
It's reliable partly because it's so basic - it's a "one-way" broadcast network, and only operates at 1200bps (IIRC). They're not trying to build a network to serve hundreds of Mbps over duplex data connections so everyone can download their favourite cat pics. The network is built to cover 98% of the state by area, mobile networks cover less than that by population.
As a volunteer unit, we use mobile apps to augment our response (ie, hit green on our phone to indicate we're responding, red if you're not), but the primary alerting system is still the pager. The amount of people that turn their pager off then act surprised when they miss an alert because they don't get the difference is fun though.
We had a bug recently where one of our internal bots didn't correctly parse usernames with hyphens in them, so instead of tagging @tom-jones, it would tag @tom
How are so many Americans so mistaken about their own constitution?