LINUX 之路-有多远走多远

securitypluscn

老师同意下学期我给他作助教了。可以巩固LINUX基础。

securitypluscn

RHCE

鸟哥的私房菜网络基础篇看完了。以前学过两遍网络基础， 没什么好感。这个那个的协议一大堆，头疼！ 又是IP又是端口又是协议ID的，闹心！现在再看一遍，忽然觉得悟了！甚至开始对网络知识感兴趣了。记得一位老师说如果一本书读三遍，你将无师自通。不假！

securitypluscn

用KVM有半年了，只知道它是基于内核的虚拟机。昨天为了回答一个网友的问题http://bbs.chinaunix.net/thread-4091582-1-1.html上网翻了翻相关资料，小有收获，在这里记下，备查。



摘自http://www.linux-kvm.org/page/Ch ... _%26_kernel_version

KVM requires a linux kernel module to support full virtualization. The linux module consists of three files: kvm.ko, kvm_intel.ko (for Intel processors), kvm_amd.ko (for AMD processors). You can install these modules just like you install drivers for your video card. The good news is, you may not need to install anything - the 2.6.20 kernel version (and higher) includes these kernel modules as part of the mainline kernel. It will depend on your distribution configuration whether these modules are actually in the distribution kernel as a built-in or provided as modules (or possibly absent). Here is a table listing the relation of KVM module versions to mainline kernel releases:

    2.6.20 kvm-12
    2.6.21 kvm-17
    2.6.22 kvm-22

If you are not sure your linux distribution contain it or not, use this command:

modprobe -l | grep kvm

The linux module can be built from source code. This is also the recommended way to get the right version of linux module. Compiling from the source code, and than make install should make the linux module inserted into your /lib/modules/linux-`uname -r`. Simply make it in use by:

modprobe kvm
modprobe kvm_intel

or

modprobe kvm
modprobe kvm_amd

chinaunixspring

删除文件的命令。

securitypluscn

今天写一个BASH脚本需要将一个文件SORT一下之后存到到原始文件中。
sort file > file 不管用。 上网查了查，原来要用到-o这个OPTION：sort file -o file. 下面的链接给出详细的解释：
http://stackoverflow.com/questio ... ce-using-bash-shell  

securitypluscn

今天参加SECURITY+考试，过了。RHCE， HERE I COME！

Defonds

不错，希望撸主能走的更远

securitypluscn

Defonds 发表于 2013-07-29 16:59
不错，希望撸主能走的更远

谢谢鼓励！

cxhzqhzq

回复 10# securitypluscn


    真写成这样就悲剧了。

securitypluscn

cxhzqhzq 发表于 2013-07-31 08:23
回复 10# securitypluscn

RHEL6.0显然可以避免这种悲剧发生，见49楼的测试。