1.环境说明
系统:Ubuntu 24.04
 环境:VMware下桥接静态IP设置

2.问题:ping www.baidu.com报错
[~] ping www.baidu.com                                                         
ping: www.baidu.com: Temporary failure in name resolution3.解决办法
(1)利用route -n命令查询网关正常的服务器,用命令设置网关
- 没有网关的服务器
[~] route -n                                                                   
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
192.168.122.0   0.0.0.0         255.255.255.0   U     0      0        0 ens33
- 有网关的正常服务器
[root@localhost /]# route -n
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
0.0.0.0         192.168.122.254 0.0.0.0         UG    0      0        0 ens33
192.168.122.0   0.0.0.0         255.255.255.0   U     100    0        0 ens33
(2)设置网关
[~] sudo route add default gw 192.168.122.254                                  
[~] route -n                                                                   
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
0.0.0.0         192.168.122.254 0.0.0.0         UG    0      0        0 ens33
192.168.122.0   0.0.0.0         255.255.255.0   U     0      0        0 ens33
 (3)测试能正常连通外网
参照:https://blog.csdn.net/qq_32927563/article/details/132297413



















