Viewing profile — poettering
poettering
HN member- Joined
- Tue, Jun 20, 2017, 8:15 PM UTC
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About poettering
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Comment #46784736
Yes, I have.
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Comment #42055223
Most of our tools that adjust files work really well offline. systemd-tmpfiles, systemd-sysusers, systemctl and so on all support --root= and --image=. I really don't know what the…
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Comment #41694764
The 64bit issue is certainly an issue, but very much overblown. First of all, in systemd, which is a heavy D-Bus user, we effectively IRL only send integers > 2^53 when we use UINT…
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Comment #41694732
You are writing this as if JSON was a newly invented thing, and not a language that has become the lingua franca of the Internet when it comes to encoding structured data. Well und…
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Comment #41694711
Not really. We use two text based formats for logging: BSD syslog, and systemd's structured logging (which is basically an env block, i.e. a key-value set, with some tweaks). Progr…
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Comment #41693786
Varlink is not a message bus. Hence you should be happy?
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Comment #41693750
The marshalling cost for JSON is negligible. Yes, it might be a bit slower than GVariant for example, but only by some fractional linear factor. And on small messages (which D-Bus …
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Comment #39872711
It would make things more secure in this specific backdooring case, since sshd only calls a single function of libsystemd (sd_notify) and that one would not trigger the dlopen of l…
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Comment #39867126
Uh. systemd documents the protocol at various places and the protocol is trivial: a single text datagram sent to am AF_UNIX socket whose path you get via the NOTIFY_SOCKET. That's …
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Comment #38155603
Nothing changed. You are just a victim of FUD on the Internet, my friend. That's all.
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Comment #38155594
Yes, a tpm2 enrollment takes up one slot, the recovery key another, a fido2 yet another, a pkcs11 key yet another and a password yet another in any combination/subset you like.
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Comment #38155536
With systemd you can enroll any string you want as "PIN" for tpm. There are no restrictions. Can be long, can be alphanumeric, contain weird chars, up to you.
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Comment #38150121
systemd has a similar logic, i.e. a recovery key concept, but we made sure you can type it in wherever a LUKS password would work too, even on systems where systemd is not availabl…
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Comment #38150109
To my knowledge Ubuntu does not use the TPM2 PCR logic systemd provides at all, but their own.
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Comment #35705328
Still would love if desktop terminal emulators would implement the zmodem receiver side, so that you can ssh into some host of your choice and just type "sz" to copy arbitrary file…
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Comment #21053676
We actually use something like the above. But thats not sufficient since we cannot set up the PAM session fully if $HOME is not accessible because we can't acquire a password for i…
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Comment #21053643
Uh oh. This is implemented via a PAM module too. But it does substantially more than pam_mount so not sure what you want. It's like claiming that UNIX 'find' is NIH because 'ls' al…
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Comment #21053611
Well. How frequently do you update your user record in /etc/passwd? I mean, if you do this a million times per second then maybe your are doig something wrong, no? I update my user…
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Comment #21053536
Yes this is a problem. To address this systemd-homed is careful to validate the user record enclosed in the volume first (which includes checking its signature against the keyring …
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Comment #19854445
That "security engineer" appears to imply we use rand() to create crypto keys. I am not sure what he has been smoking. We don't. He appears to be just somebody who doesn't research…
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Comment #19026458
Well, this boils down to: in a modern operating system, is it good design that an unprivileged user who logs in once can consume arbitrary runtime resources uncontrolled, unbounded…
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Comment #19025717
Well. What is a distro for then if not for picking the most highlevel of defaults suitable for them?
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Comment #19025711
We send SIGHUP btw. The kernel's own sending of SIGHUP is bound to the TTY concept btw, which is specific to TTY logins only, not graphical ones. That said the question is not so m…
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Comment #19025060
I think my comment above explained that already.