firefly@firefly:~$ cat /etc/network/interfaces
# interfaces(5) file used by ifup(8) and ifdown(8)
# Include files from /etc/network/interfaces.d:
source-directory /etc/network/interfaces.d
auto wlan0
iface wlan0 inet dhcp
此时,可以看出wlan0网卡设置为动态获取IP的模式。
第二步:重新配置网络配置文件,键入如下内容: sudo vi /etc/network/interfaces
firefly@firefly:~$ ping baidu.com
PING baidu.com (39.156.69.79) 56(84) bytes of data.
64 bytes from 39.156.69.79: icmp_seq=1 ttl=46 time=45.3 ms
64 bytes from 39.156.69.79: icmp_seq=3 ttl=46 time=51.4 ms
64 bytes from 39.156.69.79: icmp_seq=4 ttl=46 time=54.1 ms
64 bytes from 39.156.69.79: icmp_seq=5 ttl=46 time=51.4 ms
第六步:重启系统,查看IP地址及能否访问Internet
firefly@firefly:~$sudo reboot
firefly@firefly:~$ ifconfig
eth0 Link encap:Ethernet HWaddr 36:ee:b6:48:de:ea
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:7 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:858 (858.0 B)
Interrupt:24
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:65536 Metric:1
RX packets:5 errors:0 dropped:0 overruns:0 frame:0
TX packets:5 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1
RX bytes:365 (365.0 B) TX bytes:365 (365.0 B)