Bookmarked connection fails

[blue-genie]

Hello,

I have a strange issue.
If I so ssh ec2-user@XX.XX.XX.XX -i ~/.../.../test.pem the SSH connection is established.
If I create a bookmark(saved connection) and provide the same information, that connection fails.

Any guidance on what I could do?

[blue-genie]

Looking further I see that the server logs:
key type ssh-rsa not in PubkeyAcceptedAlgorithms

But if I sent the same key from command line, it works.

[blue-genie]

ssh-keygen -l -f ~/.../.../test.pem returns 2048 SHA256:/YqOC0i31B8195ftXUWpR1Nr6iXXXXP27O2O58 no comment (RSA) - so it's already SHA2

[zxdong262]

How is the pem created? electerm do have limited support for private key format, if it is ceated with ssh-keygen cmd, should be OK, other than that, might not be supported, this is something should be improved, I will check what I can do,

also might be related to: mscdex/ssh2#1316 , if that is the case, use ed25519 keyformat may work, or maybe edit .ssh/config, add:

addKeysToAgent yes
PubkeyAcceptedKeyTypes=+ssh-rsa

[blue-genie]

I don't remember how it was generated, it was a while ago. The format is:

-----BEGIN RSA PRIVATE KEY----
...
-----END RSA PRIVATE KEY-----

but the same key works if it's used to another another using electerm.

I'm guessing that on the other server, ssh-rsa is in PubkeyAcceptedAlgorithms but on this server it's not.

Does electerm, or the libraries that it uses, convert the file or something?

Why does it work if I use ssh command inside electerm?

[blue-genie]

AWS blocks ssh-rsa for a reason' I don't want to expose my server to security issues.

[zxdong262]

Do you permission to create new key pairs In ec2 dashboard?
If you can create key pairs, can you try create the ed25519 format key pair to test?

[zxdong262]

Can you create a temp ec2 key pair for me to test, the private key and pubkey if could get the pubkey.

[zxdong262]

no need any more, after updated ssh2 module, as I tested, should be able to connect with rsa key, so would fix in next release

[zxdong262]

Can you try https://github.com/electerm/electerm/releases/tag/v1.37.80

[blue-genie]

I'm sorry for the delay, I was side tracked.

I upgraded to 1.37.80 - all is good. Thank you

[zxdong262]

Thank you for the feedback~or I may not resolve it.