［转贴］ubuntu下只能打开百度、谷歌等少数网站的解决办法

[i=s] 本帖最后由 crasyangel 于 2010-3-25 14:06 编辑 [/i]

引用:

原帖：http://www.ubuntugeek.com/how-to-change-mtu-maximum-transmission-unit-of-network-interface-in-ubuntu-linux.html

其实这与MTU有关。
Maximum Transmission Unit(MTU), the largest physical packet size, measured in bytes, that a network can transmit. Any messages larger than the MTU are divided into smaller packets before being sent.By optimizing the MTU setting you can gain substantial network performance increases.

Default MTU Size for Different Network Topology
[attach]29636[/attach]

临时改变mtu

引用:

sudo ifconfig eth0 mtu 1492
sudo /etc/init.d/networking restart

永久改变mtu
sudo gedit /etc/network/interfaces（修改interfaces）

引用:

Example
iface eth0 inet static
address 192.168.0.1
network 192.168.0.0
gateway 192.168.0.254
netmask 255.255.255.0
mtu 1492

引用:

网络设置:
http://wiki.ubuntu.org.cn/UbuntuManual:%E7%BD%91%E7%BB%9C%E8%AE%BE%E7%BD%AE
Ubuntu Wiki:
http://wiki.ubuntu.org.cn/%E9%A6%96%E9%A1%B5