The setup of OpenBSD Amsterdam

https://openbsd.amsterdam/setup.html

by RomanZolotarev • 8 years ago

64 20 8 years ago

openbsd.amsterdam

Yuioup• 8 years ago

Can somebody explain what this is?

vesinisa• 8 years ago

Looks like an OpenBSD version of Docker.

popsickle3• 8 years ago

No, this is virtualization - vmm/vmd is a legit HVM.

popsickle3• 8 years ago

They're a minimal/simplified VPS provider; OpenBSD VPSes hosted on OpenBSD's native hypervisor.

Fnoord• 8 years ago

This has nothing to do with an official OpenBSD or Amsterdam project, does it?

popsickle3• 8 years ago

Nope. However, for very €60 you spend they will donate €10 to the OpenBSD foundation, so there's always that.

hoytech3• 8 years ago

Perl's rand() is not a great way to generate values that should be unpredictable. It is seeded with only 4 bytes from /dev/urandom and is an LFSR like rand(3).

The consequence is that the range of possible passwords is probably smaller than was intended, and furthermore seeing previous passwords (or the random MAC) may help in predicting passwords. Of course without seeing their entire setup it's hard to say to what extent that is the case here.

This module may be useful (it even uses the same alphabet by default): https://metacpan.org/pod/Session::Token

dchest• 8 years ago

Was thinking the same. Then remembered that OpenBSD's rand(3) actually returns result from arc4random() now. Then went to check and it seemed like Perl doesn't actually use rand(3) from libc? At least Perl's srand(N) and then rand() returned deterministic results, which shouldn't happen if it was using rand(3)...

hoytech3• 8 years ago

Yes good point. I was careful not to say that perl actually uses rand(3) because I think it may not for portability reasons. Also, I think this may have changed at some point so might be different depending on perl version.

merlincorey• 8 years ago

I have one of these instances (thanks Roman and team), and I have to say it's been a lot of fun re-acquainting myself with OpenBSD.

That said, I would consider this mostly a place for experimentation and hobby work, as I routinely am unable to connect or find that my VM has been unexpectedly rebooted.

Now THAT said, I think they are figuring things out, because the issues have been a lot less frequent since the big hard drive failure a month or so ago.

Anyway, if you want to learn you some OpenBSD, I highly recommend it as a place to experiment, and you help the OpenBSD community as well through their donation.

smhenderson• 8 years ago

I found Absolute OpenBSD[1] to be both informative and entertaining to read. Really anything by Michael Lucas is a good read for me.

[1] https://mwl.io/nonfiction/os#ao2e

znedw• 8 years ago

If you need more convincing to try OpenBSD, these interviews are nice https://www.bsdjobs.com/people and similar to usesthis.com.

The setup of OpenBSD Amsterdam

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