/etc/ssh/ssh_config line 57: Unsupported option "gssapiauthentication"
Unable to negotiate with 172.18.8.154 port 58022: no matching key exchange method found. Their offer: diffie-hellman-group1-sha1,diffie-hellman-group-exchange-sha1
未找到匹配的密钥交换方法
在对端的/etc/ssh/sshd_config中找到有该配置：
#KexAlgorithms diffie-hellman-group1-sha1,diffie-hellman-group-exchange-sha1
注释掉，然后重启ssh：service sshd restart
