Selfhosted

59999 readers

461 users here now

A place to share alternatives to popular online services that can be self-hosted without giving up privacy or locking you into a service you don't control.

Rules:

Be civil: we're here to support and learn from one another. Insults won't be tolerated. Flame wars are frowned upon.
No spam.
Posts here are to be centered around self-hosting. Please ensure it is clear in your post how it relates to self-hosting.
Don't duplicate the full text of your blog or git here. Just post the link for folks to click.
Submission headline should match the article title.
No trolling.

Resources:

selfh.st Newsletter and index of selfhosted software and apps
awesome-selfhosted software
awesome-sysadmin resources
Self-Hosted Podcast from Jupiter Broadcasting

Any issues on the community? Report it using the report flag.

Questions? DM the mods!

founded 3 years ago

MODERATORS

curbstickle@anarchist.nexus

curbstickle_lw@lemmy.world

How do you protect a remote backup from a compromised account? (lemmy.zip)

submitted 16 hours ago by eyesaremosaics@lemmy.zip to c/selfhosted@lemmy.world

26 comments fedilink hide all child comments

Let's say you have access to a remote machine and use it to copy backups occasionally, eg with rsync. Your local machine has credentials stored that allow write access on the remote machine, however if the local account was compromised that could also allow access to the remote machine and the data stored there.

How can you grant access to an account to write remotely, but also protect the data from this account? One possibility could be to change the permissions on the data after it is copied to prevent deletion/interference, although I'm just making this up. Is there a standard practise for this?

you are viewing a single comment's thread
view the rest of the comments

[–] gagootron@feddit.org 4 points 10 hours ago

A system like proxmox backup server can do this scurely. There you can create a user that can only add new backups and read the existing ones, but cannot delete any or read anything else on the remote host.

Otherwise if you only care to protect the remote machine, then something like an ssh chroot jail would also work.