You mean with its sealing which can detect corruption, common export formats, the on-disk format clearly documented (https://www.freedesktop.org/wiki/Software/systemd/journal-fi...), and independent readers like https://fluentbit.io/documentation/0.14/input/systemd.html ?
What exactly is impenetrable here?
As for forwarding, there is likely a disparity between the last log written to disk and the last log received by the aggregator. What happened in that window is always interesting and always on disk on the node, unless the attacker has nuked it, which neatly leads to...
Sealing and tamper protection on logs is absolutely no use as any competent attacker will just destroy them outright. Learned that from years of windows NT. you can possibly recover them from analysing disk blocks though which is even more difficult if you have journald in there again.
I prefer rsyslog, plain text and time marking. Much easier to alert on suspicious things when the mark stops arriving.
Log journaling has few practical benefits. I. Fact I’m sceptical of any from experience.
What's hard about:
journalctl -D /mounted/path/var/lib/journald ...usual options
But that's the point - as long as you've been monitoring the signatures, you know which one's been removed/changed.
Plain text is orders of magnitude easier and safer to deal with and easily recoverable even if only partially which is extremely difficult with journald
Basically every journald using distro immediately forwards the logs to syslog so you can just pretend it doesn’t exist and call it a day. I don’t because journald’s metadata and filtering is super powerful but nothing is stopping you from just grepping like usual.
I feel like we're missing the elephant in the room, which is that almost everyone is going to forward logs over the network completely bypassing journald/journalctl altogether. At which point you have to ask: who is journald for? In the server environment, you're going to send everything to Splunk or whatever.
Which just leaves desktop users to deal with the headache that is journald. Desktop/workstation users don't care about tamper detection, corruption, or any of that nonsense. If there is corruption going on, I doubt they care that their boot logs are invalid. I'm 100% sure they care more that their 3D render that took 30 hours to render is now corrupt, or some other asset or document.
And in the rare case they do need to dive into the logs, they aren't going to want to re-learn journalctl again.
journald is a solution to a 1990s problem that no longer exists.
To be clear, I wasn't defending usefulness of sealing and signing. Just the fact that not only it's independently readable, but also you can find out about corruption of it matters to you for forensic purposes raised.
Journalctl does provide at least one significant feature though - on a properly configured system "journalctl -u foobar" gives you the logs of foobar. No more chasing which file they live in, no more stdout goes here, stderr there, and logs get split in that special way over there. This is great for desktop users.
I am genuinely interested.
https://lwn.net/Articles/585504/
Of the 8 voting members, at the time Steve Langasek and Colin Watson were currently employed and Ian Jackson had been previously employed by Canonical.
None of the 8 voting members were employed by Red Hat at the time.
Here's a comment with more research into affiliations at the time: https://lwn.net/Articles/585026/
Now there did need to be a better solution in the init system space but systemd was possibly the worst answer that could be mustered for it.
Systemd is merely what you get when Redhat owns the development community, not the best technical solution.