Failed to connect to the host via ssh: ssh: connect to host 192.68.1.75 port 22: No route to host-优快云博客

本文链接：https://blog.youkuaiyun.com/sdd220/article/details/78560368

本文记录了使用Ansible-playbook时遇到的连接问题，包括无法通过SSH连接到目标主机及路由问题，并提供了两种解决方案：一是通过--ask-pass选项要求输入密码；二是针对路由问题启动dhcpd.service服务。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

[root@CentOS7 change]# ansible-playbook -i /home/change/hosts /home/change/playbooks.yml

PLAY [all] *****************************************************************************************

TASK [Gathering Facts] *****************************************************************************
fatal: [192.68.1.75]: UNREACHABLE! => {“changed”: false, “msg”: “Failed to connect to the host via ssh: ssh: connect to host 192.68.1.75 port 22: No route to host\r\n”, “unreachable”: true}
fatal: [192.168.0.2]: UNREACHABLE! => {“changed”: false, “msg”: “Failed to connect to the host via ssh: Permission denied (publickey,gssapi-keyex,gssapi-with-mic,password).\r\n”, “unreachable”: true}
to retry, use: –limit @/home/change/playbooks.retry

PLAY RECAP *****************************************************************************************
192.168.0.2 : ok=0 changed=0 unreachable=1 failed=0
192.68.1.75 : ok=0 changed=0 unreachable=1 failed=0

原因：
需要输入密码验证
解决方案：
ansible-playbook -i /home/change/hosts /home/change/playbooks.yml –ask-pass

还有一种就是出现No route to host是由于客户端dhcp取址，在仅主机模式下，没有开启dhcp服务
systemctl start dhcpd.service