有一台执行机使用ssh登录很慢,输入完密码后需要等待2,30秒才能够登录进去,简直不能忍.查看日志发现卡在Entering interactive session
添加 UseDNS no修改目标机器的 /etc/ssh/ssh_config
添加 GSSAPIAuthentication no
并没有什么作用
ssh -v 80@30.35.108.5 OpenSSH_6.9p1, LibreSSL 2.1.8 debug1: Reading configuration data /etc/ssh/ssh_config debug1: /etc/ssh/ssh_config line 21: Applying options for * debug1: Connecting to 192.168.1.1 [192.168.1.1] port 22. debug1: Connection established. debug1: identity file /Users/liudan/.ssh/id_rsa type 1 debug1: key_load_public: No such file or directory debug1: identity file /Users/liudan/.ssh/id_rsa-cert type -1 debug1: key_load_public: No such file or directory debug1: identity file /Users/liudan/.ssh/id_dsa type -1 debug1: key_load_public: No such file or directory debug1: identity file /Users/liudan/.ssh/id_dsa-cert type -1 debug1: key_load_public: No such file or directory debug1: identity file /Users/liudan/.ssh/id_ecdsa type -1 debug1: key_load_public: No such file or directory debug1: identity file /Users/liudan/.ssh/id_ecdsa-cert type -1 debug1: key_load_public: No such file or directory debug1: identity file /Users/liudan/.ssh/id_ed25519 type -1 debug1: key_load_public: No such file or directory debug1: identity file /Users/liudan/.ssh/id_ed25519-cert type -1 debug1: Enabling compatibility mode for protocol 2.0 debug1: Local version string SSH-2.0-OpenSSH_6.9 debug1: Remote protocol version 2.0, remote software version OpenSSH_6.6.1 debug1: match: OpenSSH_6.6.1 pat OpenSSH_6.6.1* compat 0x04000000 debug1: Authenticating to 192.168.1.1:22 as '80' debug1: SSH2_MSG_KEXINIT sent debug1: SSH2_MSG_KEXINIT received debug1: kex: server->client chacha20-poly1305@openssh.comnone debug1: kex: client->server chacha20-poly1305@openssh.com none debug1: expecting SSH2_MSG_KEX_ECDH_REPLY debug1: Server host key: ecdsa-sha2-nistp256 SHA256:fchZB16JdbpNZqqZcFxufdzPsRX3Om8Qm4Tgn1TqLfg debug1: Host '192.168.1.1' is known and matches the ECDSA host key. debug1: Found key in /Users/liudan/.ssh/known_hosts:27 debug1: SSH2_MSG_NEWKEYS sent debug1: expecting SSH2_MSG_NEWKEYS debug1: SSH2_MSG_NEWKEYS received debug1: SSH2_MSG_SERVICE_REQUEST sent debug1: SSH2_MSG_SERVICE_ACCEPT received debug1: Authentications that can continue: publickey,gssapi-keyex,gssapi-with-mic,password debug1: Next authentication method: publickey debug1: Offering RSA public key: /Users/liudan/.ssh/id_rsa debug1: Authentications that can continue: publickey,gssapi-keyex,gssapi-with-mic,password debug1: Trying private key: /Users/liudan/.ssh/id_dsa debug1: Trying private key: /Users/liudan/.ssh/id_ecdsa debug1: Trying private key: /Users/liudan/.ssh/id_ed25519 debug1: Next authentication method: password 80@192.168.1.1's password: debug1: Authentication succeeded (password). Authenticated to 192.168.1.1 ([192.168.1.1]:22). debug1: channel 0: new [client-session] debug1: Requesting no-more-sessions@openssh.com debug1: Entering interactive session. 卡住了20秒+
systemd-logind服务没有重启导致,可以systemctl status systemd-logind查看状态
systemctl restart systemd-logind
重新ssh就很快了