Infrastructure nerd, gamer, and Lemmy.ca maintainer

  • 51 Posts
  • 380 Comments
Joined 2 years ago
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Cake day: June 22nd, 2023

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  • Shadow@lemmy.catoLinux@lemmy.worldSSH backdoor infection
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    18 days ago

    Most don’t create new keys per server machine but that’s not the issue. I don’t bother, I create a key per client machine on my side.

    Server gets compromised once, admin logs in and fixes it, admin logs in next time and the backdoor compromises it again.

    That’s all this is. If you can get in once, it’s a spot you can leave a backdoor that many admins will miss. That’s it.

    Admins don’t generally copy that whole file around, they usually copy and paste the lines they want. Also I generally copy and paste it from my workstation, not another server.



  • Shadow@lemmy.catoLinux@lemmy.worldSSH backdoor infection
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    20 days ago

    If your hosting is a bad actor, you’re screwed no matter what. Why bother with this when they have direct access to your disk and ram

    You could turn off authorized key files, or lock them down. This isn’t really a big security risk though, there’s countless ways to backdoor a system once you have access to do this.

    This just targets a remote account, not your local pc.
















  • Lemmy.ca does about 2tb a week in traffic, 1tb of which is absorbed by Cloudflare caching images / static resources. We do have the server / network capacity to serve directly, but at the cost of reduced performance and higher latency for users. Our server is in Vancouver, if you’re in Montreal you could expect images to load slower for you since they’d no longer be cached locally once one user viewed it. Another advantage is that if we ever do get DDOS’ed, it becomes possible to manage and deal with in a reasonable amount of time + energy.

    I’m open to discussing dropping them, but we don’t pay them anything as we’re just on a free plan. We’re just costing them a little money, we don’t even register our domains through them.