fduran

7 ms·

31.
Yes Hello Me(yeshello.me)
2 points by fduran 2y ago|0 comments
32.
by fduran 2y ago
Hello, SadServers author here. Zero shame in adapting an idea you found somewhere; I'm super happy you built something useful. I've thought of adding programming debug scenarios (I even got sadbugs.com lol), may implement in the f
33.
by fduran 2y ago
Thanks, pot capacity being scheduled differently would explain the behavior. Almost all my ec2 instances are spot, and actually I can compare the distribution with the on-demand ones. My spot instances are very short lived (15-30 mins max)
34.
by fduran 2y ago
Yes, some internal (AWS operation) explanation like the one you suggest makes sense.
35.
by fduran 2y ago
So I've created ~300k ec2 instances with SadServers and my experience was that starting an ec2 VM from stopped took ~30 seconds and creating one from AMI took ~50 seconds. Recently I decided to actually look at boot times since I store
36.
by fduran 4y ago
Oh hi, author here, AMA :-) I'm happy that a lot of people use and find SadServers beneficial while not costing me a lot of money. Still a lot of features to implement on the website and a shrinking backlog of scenario ideas to materia
37.
by fduran 4y ago
yes good catch (I should forbid internet access to this end point), poor queue is waiting on VM up but there's no quota left until other VMs are garbaged-collected.
38.
by fduran 4y ago
A few people have suggested offering content offline as a Docker image etc, good idea, thanks.
39.
by fduran 4y ago
Oh that reminds me, I loved the original Stripe CTF, it's been 10 years already! https://twitter.com/fduran/status/240321390698442753
40.
by fduran 4y ago
Didn't know about this, thanks!
41.
by fduran 4y ago
Didn't know about this one. There's quite a few labs/sandbox SaaS but what I've seen so far is that they are more for training with a "follow the recipe" model (do this do that to configure something, rather th
42.
by fduran 4y ago
Thanks, I've been looking at WASM, for ex https://github.com/snaplet/postgres-wasm/tree/main/packages/... , it would certainly simplify everything to "download a fat file".
43.
by fduran 4y ago
Hi, not sure what the question means, I came up with the scenarios not copying from leetcode if that's what you mean.
44.
by fduran 4y ago
There are ways to cheat but not so simple; there's a script that checks for the solution and a hash of the script is checked for modifications.
45.
by fduran 4y ago
I wanted to do full VMs rather than Docker images but yes I could do Docker images or dedicated big instances with VMs on top like somebody else is suggesting.
46.
by fduran 4y ago
Yes thanks!
47.
by fduran 4y ago
Thanks, I did some stress-testing and infra is scalable enough but I forgot about the AWS quotas, my bad. Quota increase requested and servers are killed off so hopefully "soon" the issue will go away.
48.
by fduran 4y ago
That doesn't mean that I'd charge individual users :-) Heck, I'm not even asking for an email (and I had to do extra session management coding for that).
49.
by fduran 4y ago
Yes, HN effect lol-sob. Mitigation: reducing servers life time temporarily so more people can try.
50.
Show HN: SadServers – Test your Linux troubleshooting skills(sadservers.com)
597 points by fduran 4y ago|128 comments
51.
by fduran 6y ago
This is a good example of "Organization as Code", where you are trying to influence a non-trivial change (often "cultural") by code. Frequently it's better to change behaviour this way than say, holding meetings and
52.
by fduran 11y ago
I have a checklist with a Trello version too so items can be checked off or easily removed (or new ones added): http://www.fduran.com/blog/web-site-launch-checklist/
53.
Show HN: Web Site Launch Checklist (Trello board)(trello.com)
3 points by fduran 12y ago|0 comments
54.
by fduran 12y ago
A chess-playing computer had been suggested as early as 1864, and the first machine able to carry out a "program" was invented in Spain in 1914 by the engineer Leonardo Torres-Quevedo and called Ajedrecista http://en.w
55.
by fduran 12y ago
In my case it was 5 hours http://www.fduran.com/blog/honeypots/ so although that's just another anecdote if you put up a server with an obvious dictionary ssh password, expect it to be compromised within hour
56.
by fduran 12y ago
Asimov wrote an essay in 1973 "The Ancient and the Ultimate" about a portable reading device that didn't need power etc; it turned out it was the book.
57.
by fduran 13y ago
I just want to mention the great safety advances in car (and race) security in the last 20 years; since 1994 and the deaths of Ratzenberger and Senna there has been no driver fatalities in F1 racing. edit "Following Senna's death
58.
by fduran 13y ago
I created http://site2pic.com/ a couple years ago, it also hosts the screenshots. Not sure what to do with it.
59.
by fduran 13y ago
US football and football/soccer fields/pitches are about the same length (~100m)
60.
by fduran 13y ago
I didn't take an English test when I applied as a skill worker for permanent residency (it's not my first language). It was heavily recommended to do so but I wrote a page outlining my work experience in the US, other test results

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