ssh -v
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ssh -vvv [email protected] 2>&1 | egrep "Authenticating to|Offering"
Debug1: Authentications that can continue: publickey,password
Errors[edit]
debug1: match: OpenSSH_8.3p1 Ubuntu-1 pat OpenSSH* compat 0x04000000 debug1: Authenticating to 172.16.0.105:22 as 'USERNAME' debug1: SSH2_MSG_KEXINIT sent debug1: SSH2_MSG_KEXINIT received debug1: kex: algorithm: curve25519-sha256 debug1: kex: host key algorithm: ecdsa-sha2-nistp256 debug1: kex: server->client cipher: [email protected] MAC: <implicit> compression: none debug1: kex: client->server cipher: [email protected] MAC: <implicit> compression: none debug1: expecting SSH2_MSG_KEX_ECDH_REPLY
Solution:
ssh -o MACs=hmac-sha2-256 HOSTNAME
Troubleshooting:
ssh -vvv [email protected] 2>&1 | egrep "Authenticating to|Offering"
client_loop: send disconnect: Connection reset by peer
debug1: Authenticator provider $SSH_SK_PROVIDER did not resolve; disabling
debug1: connect to address xx.yy.zz.tt port 22: Operation timed out
debug1: pledge: filesystem full
Related terms[edit]
See also[edit]
- OpenSSH (changelog):
/etc/ssh/sshd_config|/etc/ssh/ssh_config|~/.ssh/|openSSL | sshd logs|sftp|scp|authorized_keys|ssh-keygen|ssh-keyscan|ssh-add|ssh-agent|ssh|Ssh -O stop|ssh-copy-id|CheckHostIP|UseKeychain, OpenSSF, ~/.ssh/authorized_keys
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