bluecmd

7 ms·

31.
by bluecmd 7y ago
Author here, I might write a blog article about that because it is really quite interesting. The TL;DR is that some might want to rather run 1 or 2 systems (mainframe) instead of 100 physical machines (conventional distributed cattle system
32.
by bluecmd 7y ago
For what it is worth, it will run using 100% renewable energy at https://datacenterlight.ch :-).
33.
by bluecmd 7y ago
Correct, it will run at https://datacenterlight.ch using 100% renewable energy. It the least I can do to offset the ~3 kW everything (z114 + dasd + everything else) will consume.
34.
by bluecmd 7y ago
Do you have a source on that new banks do not use mainframes? I'd love to learn what new banks use to talk to older banks.
35.
by bluecmd 7y ago
Hi, author here. Spot on! It is pretty common to see mainframe courses for $10k each - so given how much I hope to learn I kind of justify the cost just on that. Now, I do not expect to change to work on mainframes full time, but maybe it c
36.
by bluecmd 7y ago
Hi kev! Thanks for your comments, you are 100% right. Yes, living in the states make this hobby waaay easier. The surplus auctions help as well, having various goverments with various languages going in Europe does not make it as easy :-).
37.
by bluecmd 8y ago
A lot of these debug features are re-enabled on SoC reset so there are quite interesting attacks you can do there just given access to reboot the SoC. Attack before the OS has been loaded and has had time to disable the features and you win
38.
by bluecmd 9y ago
https://cloud.google.com/support/
39.
by bluecmd 9y ago
We used ScaleFT for Dreamhack ( https://www.scaleft.com/blog/how-dreamhack-used-scaleft-to-s... ) and it was very easy to work with. A very good product if your company simply wants something that works.
40.
by bluecmd 10y ago
From the github page: > Disclaimer: This is not an official Google product.
41.
by bluecmd 10y ago
Here in Sweden it's common to fly on unleaded AVGAS.
42.
by bluecmd 10y ago
It's up to the SREs taking over the service. A storage SRE PRR is different from an Ads SRE PRR.
43.
by bluecmd 10y ago
Or the Yubico official https://developers.yubico.com/libu2f-host/ - that will do the same
44.
by bluecmd 10y ago
Quite interesting that super-sonic flight was achieved 1946. I don't know if Orville was informed, but imagine that - from barely flying to supersonic in 40 years.
45.
by bluecmd 10y ago
FWIW, that is what stopped OpenRISC to become part of mainstream GCC.
46.
Show HN: Kube-Service-tunnel – Virtual IP Ingress for Kubernetes(github.com)
7 points by bluecmd 10y ago|0 comments
47.
by bluecmd 10y ago
If you always require a short-term win, you will lose in the long-term. When the company is 100x the size it is today, the savings are quite substantial.
48.
by bluecmd 10y ago
Things change
49.
by bluecmd 10y ago
> ordinary site maintenance position Seems you don't know much what Google's SRE job is about.
50.
by bluecmd 10y ago
Isn't that widely known though? Don't trust random peers on the internet. Hardly a take-away.
51.
by bluecmd 10y ago
Yes, and together with systemd it makes it super trivial to run stuff on things like privileged ports or sending ICMP and stuff like that. Great stuff!
52.
by bluecmd 10y ago
Wouldn't the nounce approach described in the article work for this?
53.
by bluecmd 10y ago
Usually you run NS behind anycast, so the actual number of servers can be vastly bigger. But since this is NK, maybe 5 is reasonable.
54.
by bluecmd 10y ago
Any form of NAT is also much much more expensive than just normal routing. For n:m NAT you need to keep track of sessions for example. This is going to hurt things like BitTorrent among a lot of things.
55.
by bluecmd 10y ago
How is that relevant? The author didn't complain about the performance - the complaint was about API stability. Which I agree with. Docker is really terrible at supporting their own APIs.
56.
by bluecmd 10y ago
Neat! How do you handle versioning? If you want to have docs for release 1.0, 1.5, 2.0 but also "master" - how would that work in Doctor?
57.
by bluecmd 10y ago
Sure, but won't you be in debt for possibly a few decades?
58.
by bluecmd 10y ago
A "probably" there would be nice. I don't want to have to defend myself, but I'm pretty confident about the scale I've worked on. I guess it boils down to what you call aggregation. Is having multiple stateless rece
59.
by bluecmd 10y ago
They say that without aggregation scale-out is impossible. That's simply not true. Using things like anycast and ECMP it's super easy as log destinations are usually stateless. Also, never had network contention because I logged t
60.
by bluecmd 10y ago
But... they really don't. There is a lot of things that will make the auto pilot disengage and you will always need to change the programming enroute.

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