this post was submitted on 19 Mar 2024
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131
My stupidity saved me from being hacked today! (lemmy.giftedmc.com)
submitted 8 months ago by [email protected] to c/[email protected]
53 comments fedilink hide all child comments
 

I know, I know, clickbaity title but in a way it did. It also brought in the situation in the first place but I'm just going to deliberately ignore that. Quick recap:

  1. I came home at 3pm from the city, my internet at home didnt work.
  2. checked multiple devices, phones worked out of wifi, I figured I need to restart the router
  3. I login to the router and it responds totally normal but my local network doesnt. (Its always dns, I know)
  4. I check the router log and see 100s of login attempts over the past couple of days.
  5. I panic and pull the plug, try to get into my server by installing an old monitor, works, many errors about dns
  6. Wife googles with her phone, seems I had https login from outside on and someone found the correct port, its disabled now
  7. Obviously, local network still down, I replug everything and ssh into the server which runs pihole as dns
  8. pihole wont start dns, whatever I do
  9. I use history and find I "chmod 700"ed the dns mask directory instead of putting it in a docker volume...
  10. I check the pihole.log, nothing
  11. I check the FTL log, there is the issue
  12. I return it to 777, everything is hunky dory again.

Now I feel very stupid but I found a very dangerous mistake by having my lan fail due to a less dangerous mistake so I'll take this as a win.

Thanks for reading and have a good day! I hope this helps someone at some day.

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[–] [email protected] 11 points 8 months ago (2 children)

There was an option that I had enabled years before and forgotten so yes, I didnt know but it was, on some obscure port.

And yes, pihole in docker makes its files be 777 which is pretty disgusting, I know. Thats why I tried to make it 700 and broke my whole network.

[–] [email protected] 54 points 8 months ago (1 children)

Doubt. You probably need to set the file owners in your volume to the same user running in the container.

[–] [email protected] 22 points 8 months ago (1 children)

I think you are still learning... What you say doesn't make sense, so I think you may have misunderstood what happened.