我剛剛安裝Ubuntu 14.04 LTS在我的筆記型電腦上，它連接到我的無線網路並顯示已連接，但是當我嘗試加載網頁或執行諸如下載 Steam for Dota 2 之類的操作時，它不起作用。當我嘗試將我的 Facebook 帳戶連接到 Ubuntu 時，它不起作用。我希望能夠在使用 Ubuntu 時能夠正常存取網路。我該怎麼辦？
ifconfig
this shows up
eth0 Link encap:Ethernet HWaddr 88:ae:1d:60:56:eb
inet addr:192.168.1.13 Bcast:192.168.1.255 Mask:255.255.255.0
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
Interrupt:16
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:24 errors:0 dropped:0 overruns:0 frame:0
TX packets:24 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:1856 (1.8 KB) TX bytes:1856 (1.8 KB)
When I type
ping askubuntu.com
this shows up
ping: unknown host askubuntu.com