CentOS 7 虚拟机无法ssh连接的记录

Posted 2021-03-05 qinghui3

ssh无法连接

错误提示：

ssh: connect to host 192.168.1.100 port 22: Connection refused

尝试解决：

1. 防火墙拦截sshd.service ?

   • 关闭防火墙，重新启动sshd.service

     root# systemctl stop firewalld.service
     root# systemctl disable firewalld.service
     root# systemctl restart sshd.service

   • 问题没有解决

2. IP地址被抢占了

   • 修改IP地址，重启虚拟机网卡

     [root@host ~]# vim /etc/sysconfig/network-scripts/ifcfg-ens33
     
     TYPE=Ethernet
     PROXY_METHOD=none
     BROWSER_ONLY=no
     BOOTPROTO=static
     DEFROUTE=yes
     IPV4_FAILURE_FATAL=no
     IPV6INIT=yes
     IPV6_AUTOCONF=yes
     IPV6_DEFROUTE=yes
     IPV6_FAILURE_FATAL=no
     IPV6_ADDR_GEN_MODE=stable-privacy
     NAME=ens33
     UUID=f285f15e-e49e-44bd-962b-f408d3005125
     DEVICE=ens33
     ONBOOT=yes
     IPADDR=192.168.1.110     //IP地址
     NETMASK=255.255.255.0    //子网掩码
     GATEWAY=192.168.1.1      //网关
     DNS1=192.168.1.1         //DNS
     
     [root@huaqigo ~]# /etc/init.d/network restart
     Restarting network (via systemctl):                        [  OK  ]

   • ssh连接成功