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No more authentication methods to try,Permission denied (publickey)

作者:the5fire | 标签:     | 发布:2023-11-21 9:04 a.m. | 阅读量: 543, 513

简言之就是ssh client更新了,不支持rsa的私钥,导致无法登陆。

ssh登陆服务器,出现类似下面的提示:

debug3: authmethod_is_enabled publickey
debug1: Next authentication method: publickey
debug1: Offering public key: /home/user/.ssh/id_rsa RSA ... agent
debug1: send_pubkey_test: no mutual signature algorithm <-- ssh-rsa is not enabled 
debug1: No more authentication methods to try.
user@hostname: Permission denied (publickey).

本来以为是key弄错了,或者服务器被hei了。加上 -v 参数才发现问题。

解决方案也很简单,就是在 ~/.ssh/config 中增加:

Host *
    ServerAliveInterval 30
    PubkeyAcceptedKeyTypes +ssh-rsa

如果是出现:no matching host key type found. Their offer: ssh-rsa,ssh-dss 的错误,还需要配置:

HostKeyAlgorithms=ssh-rsa,ssh-dss

具体原因: https://www.openssh.com/txt/release-8.2 参考:https://confluence.atlassian.com/bitbucketserverkb/ssh-rsa-key-rejected-with-message-no-mutual-signature-algorithm-1026057701.html

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