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1. Introduction to Research

1.1. Why do a research project?

To develop the following skills essential for your future study at the University of Nottingham.

  • Knowledge and understanding
  • Reviewing literature
  • Synthesising ideas
  • Constructing arguments
  • Planning and design
  • Academic writing
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In this page, I’d like to share the topic lists of Public Speaking Society and my presentation.

1. Topics

  • Money or love ?
  • There is no such thing as ‘luck’.
  • Social media is the 21th century’s most harmful drug.
  • How do lazy students survive/succeed in life ?
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1. Some mottoes want to share , for me , for you

Always keep energetic and flexible on Mind and Body.

  • Life feeds on negative entropy.
  • Learn more , study less.
  • Learning to enjoy studying can matter even more than learning to study well.
  • Understanding something means you have the ability to view it from different perspectives.
  • Focus on the solution, not the emotion.
  • Discipline Equals Freedom.
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Red Hat Enterprise Linux 6.5

1. 封装虚拟机

1.1. 配置yum源(物理机Rhel7)

效果

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[root@foundation ~]# df -h
Filesystem                           Size  Used Avail Use% Mounted on
/dev/mapper/rhel_foundation163-root   89G   33G   57G  37% /
devtmpfs                             3.8G     0  3.8G   0% /dev
tmpfs                                3.8G   18M  3.8G   1% /dev/shm
tmpfs                                3.8G  9.0M  3.8G   1% /run
tmpfs                                3.8G     0  3.8G   0% /sys/fs/cgroup
/dev/loop0                           3.5G  3.5G     0 100% /var/www/html/source
/dev/loop1                           3.6G  3.6G     0 100% /var/www/html/rh6.5  ##镜像挂载成功
/dev/sda3                            497M  122M  376M  25% /boot
[root@foundation ~]# vim /etc/fstab  ##设置开机自动挂载
/source/rhel-server-6.5-x86_64-dvd.iso /var/www/html/rh6.5 iso9660 ro,relatime 0 0
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1. Red Hat Enterprise Linux 7

1.1. 虚拟机安装

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yum install qemu-kvm qemu-img	 ##安装虚拟机核心组件
yum install virt-manager libvirt libvirt-python-virtinst libvirtnt   ##安装虚拟机前端管理工具
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1. Red Hat Enterprise Linux 7

1.1. 设备的识别

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/dev/sda	##系统中的第一块串口硬盘
/dev/hda	##系统中第一块并口硬盘
/dev/hdb	##系统中第二块并口硬盘
/dev/cdrom	##系统光驱
/dev/mapper/xxx	##虚拟设备
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1. Red Hat Enterprise Linux 7

1.1. 如何安装软件

yum : Yellowdog Updater Modified

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yum 	list	all		##列出所有安装包
yum 	list	installed	##列出已经安装的
yum	list	available	##列出没有安装的
yum 	remove	software	##卸载软件
yum 	install	software	##安装软件
yum	search	关键字		##搜索与关键字相关的软件
yum	whatprovides  文件	##搜索包含此文件的包
yum 	reinstall software	##重新安装软件
yum	localinstall 第三方软件	##安装第三方软件并解决依赖关系
yum 	info	software	##查询软件信息
yum 	groups  list		##列出软件组
yum	groups	install	组名	##安装组
yum	groups	remove	组名	##卸载组
yum	groups	info	组名	##查看组信息
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1. Red Hat Enterprise Linux 7

1.1. 打包

tar

打包表示把一堆文件变成一个

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tar  -f   ##指定生成包的名字
tar  -c   ##创建包
tar  -v   ##显示创建过程
tar  -t   ##查看包中内容
tar  -x   ##解包

tar  -rf  包名 文件名              ##添加文件到包中
tar  -f   包名 --delete filename  ##删除包中指定文件
tar  -f   包名 --get    filename  ##取出包中指定文件

tar -cvf  包名  要打包的目录 ##创建包
tar -xvf  包名             ##解包
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1. Red Hat Enterprise Linux 7

1.1. 网络基础知识

ip

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ip,Internet Protocol,网络之间互连的协议,目前最广泛使用的是IPV4，32位。

ip的表示

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00000000.00000000.00000000.00000000  ==>0.0.0.0
11111111.11111111.11111111.11111111  ==>255.255.255.255

192.168.0.255 class C:
11000000.10101000.00000000.11111111
|---------Net_ID--------- |-HOST_ID-|
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1. Red Hat Enterprise Linux 7

1.1. 日志文件

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/var/log/messages      ##存放大部分日志(非常重要，几乎所有的错误信息，重要信息都会被记录)
/var/log/secure        ##存放安全及用户相关的日志
/var/log/maillog       ##存放与邮件有关的日志
/var/log/cron          ##存放定期执行的文件的日志
/var/log/boot.log      ##存放与系统启动相关的日志(系统开机时的读条)
/var/log/dmesg         ##记录系统在开机时内核检测过程所产生的信息
/var/log/wtmp          ##记录用户正确或错误登录时的信息，last命令就是读的这个文件
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