VirtualBox安装Ubuntu12.04

提示Ubuntu is running in low-graphics mode

一通乱试,最后
cd /etc/X11
sudo cp xorg.conf.failsafe xorg.conf
reboot重启就可以进入漂亮的Ubuntu了!


VirtualBox创建COM失败无法启动

把网上所有方法都试遍了,也还是启动不了,重启了也不行,甚至无法卸载VirtualBox。今天再打开又好了,所以不知到是怎么好的。非常怀疑是这个盗版XP造成的。


调整swap空间使用

原文地址

在UBUNTU系统里面,并不是你的物理内存全部耗尽之后,系统才使用swap分区!系统的swappiness设定值,对如何使用swap分区是有着很大的联系。

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NetWorx

NetWorx – Free Bandwidth Monitoring and Usage Reporting

NetWorxNetWorx is a simple and free, yet powerful tool that helps you objectively evaluate your bandwidth situation. You can use it to collect bandwidth usage data and measure the speed of your Internet or any other network connection. NetWorx can help you identify possible sources of network problems, ensure that you do not exceed the bandwidth limits specified by your ISP, or track down suspicious network activity characteristic of Trojan horses and hacker attacks.

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