SSH authentication failures: Server refused our key

Question

I have set up public key authentication before and never had this much trouble… I am not sure what I am missing, but I have done all of the following: Ensured the private and public key match (they were created by puttygen, and i use the same key for github ) PubkeyAuthentication is set to yes AuthorizedKeysFile %h/.ssh/authorized_keys AuthorizedKeysFile has my public key in it. AuthorizedKeysFile is set to mode 600 (i’ve tried 644, 700, 777… i know ssh server usually blocks any attempt to use these if permissions are too open, but idk what else to try) ~/.ssh is set to mode 700 id_rsa.pub is set to mode 600 The user and group are set to the proper user… what am I missing?

SgtPooki · Answer

Ok… apparently it was an issue with copying the file over a remote connection. I ran dos2unix on my id_rsa.pub, then cleared out authorized_keys and then cat id_rsa.pub >> authorized_keys… boom, it works. Thanks to DEBUG3. (Why doesn’t verbose give key failure information…?)

sgalenwright · Answer

I also had this same issue. I solved it by Running puttygen Loading the private key I had generated Copying “Public key for pasting into OpenSSH authorized_keys file” into a new pub_key.txt file locally Using winscp to copy that file up to my server under the .ssh folder Deleting the authorized_keys file via rm authorized_keys Installing dos2unix via sudo apt-get dos2unix (I’m running Ubuntu) Converting the windows generated file to unix style line endings via dos2unix pub_key.txt Copying the pub key into authorized_keys via cat pub_key.txt >> authorized_keys This finally allowed me to putty into my box as all the tutorials described.

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SSH authentication failures: Server refused our key

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SSH authentication failures: Server refused our key