统信桌面操作系统专业版V20（1070）
Linux uos 5.10.97-arm64-desktop
uos基础 ping 测试域名与地址
- ping 域名的话，需要经过dns
- ping 地址的话，不需要经过dns
- 根据这个区别就可以初步判断dns的运行状态
code@uos:~$ ping www.baidu.com
PING www.baidu.com(/*此处隐藏*/ (/*此处隐藏*/)) 56 data bytes
64 bytes from /*此处隐藏*/ (/*此处隐藏*/): icmp_seq=1 ttl=53 time=8.06 ms
64 bytes from /*此处隐藏*/ (/*此处隐藏*/): icmp_seq=2 ttl=53 time=8.17 ms
64 bytes from /*此处隐藏*/ (/*此处隐藏*/): icmp_seq=3 ttl=53 time=8.21 ms
^C
--- www.baidu.com ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 5ms
rtt min/avg/max/mdev = 8.055/8.143/8.205/0.063 ms
code@uos:~$ ping 8.8.8.8
PING 8.8.8.8 (8.8.8.8) 56(84) bytes of data.
64 bytes from 8.8.8.8: icmp_seq=1 ttl=112 time=50.3 ms
64 bytes from 8.8.8.8: icmp_seq=2 ttl=112 time=43.8 ms
64 bytes from 8.8.8.8: icmp_seq=3 ttl=112 time=46.8 ms
^C
--- 8.8.8.8 ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 6ms
rtt min/avg/max/mdev = 43.772/46.942/50.299/2.667 ms
code@uos:~$
