openEuler远程报错

• kex error : no match for method mac algo client->server: server [], client []

主要看mac algo这个位置，
究其原因，就是客户端提供的加密算法和服务端不一致，修改对应的算法列表
在服务端就去etc/ssh/sshd_config找对应的算法行去更新

MACs hmac-sha2-256,hmac-sha2-512,hmac-sha2-512-etm@openssh.com,hmac-sha2-256-etm@openssh.com,hmac-sha1-etm@openssh.com,hmac-sha1
StrictModes yes
AllowTcpForwarding no
AllowAgentForwarding no
GatewayPorts no
PermitTunnel no
KexAlgorithms curve25519-sha256,curve25519-sha256@libssh.org,diffie-hellman-group-exchange-sha256,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
HostbasedAcceptedKeytypes ssh-ed25519,ssh-ed25519-cert-v01@openssh.com,rsa-sha2-256,rsa-sha2-512
GSSAPIKexAlgorithms gss-group14-sha256-,gss-group16-sha512-,gss-curve25519-sha256-
CASignatureAlgorithms ssh-ed25519,sk-ssh-ed25519@openssh.com,rsa-sha2-512,rsa-sha2-256
HostKeyAlgorithms ssh-ed25519,ssh-ed25519-cert-v01@openssh.com,rsa-sha2-256,rsa-sha2-512,ecdsa-sha2-nistp256,ssh-rsa,ssh-dss
PubkeyAcceptedKeyTypes ssh-ed25519,ssh-ed25519-cert-v01@openssh.com,rsa-sha2-256,rsa-sha2-512

改完配置重启ssh

service sshd restart