openssh无法登录:提示 "algorithm negotiation failed"
问题:
openssh无法登陆服务器,xshell可以登陆,openssh登陆提示:server responded "algorithm negotiation failed”
解决:
修改ssh的配置文件 /etc/ssh/sshd_config
在配置文件中添加:
Ciphers aes128-cbc,aes192-cbc,aes256-cbc,aes128-ctr,aes192-ctr,aes256-ctr,3des-cbc,arcfour128,arcfour256,arcfour,blowfish-cbc,cast128-cbc
MACs hmac-md5,hmac-sha1,[email protected],hmac-ripemd160,hmac-sha1-96,hmac-md5-96
KexAlgorithms diffie-hellman-group1-sha1,diffie-hellman-group14-sha1,diffie-hellman-group-exchange-sha1,diffie-hellman-group-exchange-sha256,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group1-sha1,[email protected]
重启sshd服务后,即可正常连接 service sshd restart
ps:
导致此问题的原因是ssh升级后,为了安全,默认不在采用原来一些加密算法,我们手工添加进去即可。
后面会分享更多devops和DBA方面的内容,感兴趣的朋友可以关注下!!