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monday 8am and im locked out of a new ec2 instance

Solvedauthenticationlinuxssh89 replies · 1.7K views · started
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by Liv SilvaJump to the reply

oof in CI, private keys pasted as secrets often lose teh trailing newline or get CRLF line endings. make suree teh key file ends with a newline and has 600 permissions, or the client silently skips it.

  1. Una K.
    @una_lambda

    ok weird one my key works on every other server. on a new EC2 instance, from a CI job, nothing:

    A colleague set up teh account. they swear they pasted my key. I'm satrting to suspect the server, but I don't even know where to look.

    it's frustrating beacuse i can't see anything on the server side, and the error message is the same for every possible mistake, is there a way to get more detail from the client at least? seriously need help here 😭

    2
  2. Dev
    @dev_cobalt-2rj

    in ssh -vvv, do you see Offering public key for teh key you expect, and what comes right after?

    2 0 helpful
  5. Oskar Schmidt
    @oskar.schmidt

    been there man pro tip: write down what u change. i didnt and had to redo linux from scratch :D exact same thing happened to my moms pc last month

    2 2 helpful
  6. Dev
    @dev_cobalt-2rj

    ok so i swear ssh is cursed. which version are u on? any ideas??

    2 0 helpful
  9. Bram Fischer
    @shader_nomad

    for me it was teh default config... swapped it and boom, fixed. lol this thread is gold hope that helps :)

    31 0 helpful
  10. Kenji R.
    @kenjir81

    pro tip: write down what u change. i didnt and had to redo linux from scratch. reading this at 2am instead of sleeping, no regrets

    22 1 helpful
  11. Leon Dalton
    @leon.dalton84

    @kenjir81 thank u this worked!!

    0 1 helpful
  13. Kenji R.
    @kenjir81

    yeahhh for me it was the settings. swapped it and boom, fixed worked for me anyway 🤷

    38 0 helpful
  14. Kenji R.
    @kenjir81

    wait is authentication even worth bothernig with or should i just leave it

    1 0 helpful
  15. Leon Dalton
    @leon.dalton84

    yeahhh bump. still happening with authentication for me fingers crossed 🤞

    0 2 helpful
  16. Dev
    @dev_cobalt-2rj

    Run the client in verbose mode first:

    ssh -vvv user@host

    look for Offering public key: lines :D if your key is never offered, teh client isnt using it: pass -i ~/.ssh/id_ed25519 or set IdentityFile in ~/.ssh/config. If its offered and rejected, the server side is the problem.

    0 13 helpful
  17. Dev
    @dev_cobalt-2rj

    xD

    2 0 helpful
  18. Bram Fischer
    @shader_nomad

    oh ive been there lol this, sooo much this

    7 2 helpful
  19. Kenji R.
    @kenjir81

    pro tip: write down what u change... i didnt and had to redo linux from scratch... wait does this also apply to linux? hope that helps :)

    0 6 helpful

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