Network Experiment Environment Construction

In order to provide an environment for network experiments in the future, I use VirutalBox to create some hosts.
My real host is Ubuntu 14.04 LTS.
And I will install some OSs gradually.

Kali Linux Installation

Nothing more to record.
Just remember to configure the boot loader when you install it.
Or you will come across troubles.
Also, remember to add software sources:

vim /etc/apt/sources.list

Add:

deb http://mirrors.ustc.edu.cn/kali kali main non-free contrib
deb-src http://mirrors.ustc.edu.cn/kali kali main non-free contrib
deb http://mirrors.ustc.edu.cn/kali-security kali/updates main contrib non-free
deb http://http.kali.org/kali kali main non-free contrib
deb-src http://http.kali.org/kali kali main non-free contrib
deb http://security.kali.org/kali-security kali/updates main contrib non-free
deb http://ftp.sjtu.edu.cn/debian wheezy main non-free contrib
deb-src http://ftp.sjtu.edu.cn/debian wheezy main non-free contrib
deb http://ftp.sjtu.edu.cn/debian wheezy-proposed-updates main non-free contrib
deb-src http://ftp.sjtu.edu.cn/debian wheezy-proposed-updates main non-free contrib
deb http://ftp.sjtu.edu.cn/debian-security wheezy/updates main non-free contrib
deb-src http://ftp.sjtu.edu.cn/debian-security wheezy/updates main non-free contrib
deb http://mirrors.163.com/debian wheezy main non-free contrib
deb-src http://mirrors.163.com/debian wheezy main non-free contrib
deb http://mirrors.163.com/debian wheezy-proposed-updates main non-free contrib
deb-src http://mirrors.163.com/debian wheezy-proposed-updates main non-free contrib
deb-src http://mirrors.163.com/debian-security wheezy/updates main non-free contrib
deb http://mirrors.163.com/debian-security wheezy/updates main non-free contrib

Then,

apt-get update && apt-get upgrade && apt-get dist-upgrade && apt-get autoremove && apt-get autoclean

Network Configuration:

vim /etc/network/interfaces:
add:

address 192.168.1.xxx
netmask 255.255.255.0
gateway 192.168.1.1
broadcast 192.168.1.255

vim /etc/resolv.conf:
add:

nameserver xxx.xxx.xxx.xxx

If you can't connect to the network, use:

route add default gw xxx.xxx.xxx.xxx

Bingo!

Copy from here. Thank him
Copy from here. Thank him

Metasploitable 2

Default Account:
username: msfadmin
password: msfadmin

Also, remember to Configure the network.

Windows XP SP3

Use it to learn penetration.

MSDN DOWNLOAD

If you want to do penetration exercise, DO NOT choose autoupate.
After configuring the network, you can ping other computers in your network.
But if XP's firewall is ON, then maybe other PC of yours can not ping it effectively.(At least, ICMP can't)
However, Nmap SYN scan can feel it.

CentOS 7 Installation

Download (I use CentOS 7 Minimal)
Network Configuration

Here I use Bridged-Adapter Mode, and I will descript the difference among Bridged-Adapter, Host-only and NAT in Appendix A

Then, let's dirty our hands in the OS:

Configure Gateway:
[root@localhost ~]# vi /etc/sysconfig/network

You should add:

NETWORKING=yes
GATEWAY=192.168.1.1 # configure the gateway IP

Configure DNS:
[root@localhost ~]# vi /etc/resolv.conf

add:

nameserver 192.168.1.1

Configure IP:
[root@localhost ~]# vi /etc/sysconfig/network-scripts/ifcfg-enp0s3 (here is mine, yours may be difference)

add:

IPADDR=192.168.1.123
NETMASK=255.255.255.0
GATEWAY=192.168.1.1

and modify:

ONBOOT=yes
BOOTPROTO=static (if your local network's DHCP server is available , you can set it to *dhcp*)

Now:

service network restart

Completed!
And you can use

ping www.baidu.com

to test your network.

Install Desktop Environment

Firstly, you'd better update your OS:

yum update

Then:

yum groupinstall "X Window system"
yum groupinstall gnome

Completed!
And you can use

startx

to turn on the Desktop Environment.

P.S.
There is no ifconfig instruction in CentOS Minimal !
How can that be !!!

Solution:
Determine which packet provides that tool:

yum provides ifconfig

We can see that it is net-tools that provides ifconfig
So,

yum install net-tools

Bingo!
Now you can use it !
(You can do similarly to install other tools)

Here are Some questions:

Metasploitable2

Appendix A - Difference Among Bridged-Adapter, Host-only And NAT Mode

Learn from here

Virutal Machine always has these three modes:

Appendix B - Files About Network Configuration in Linux (RedHat series)

/etc/sysconfig/network

This file is used to configure hostname and whether to start up:

NETWORKING=yes # means your network will start up
GATEWAY=192.168.1.1

/etc/sysconfig/network-scripts/ifcfg-enp0s3 (the exact file-name is ifcfg-YOUR-NETWORK-CARD-NAME)

This file is about network configuration:

TYPE=Ethernet # network card type
DEVICE=eth0 # name of network card
ONBOOT=yes # boot or not when OS starts up
BOOTPROTO=static # use Address Protocol: static bootp dhcp
IPADDR=192.168.1.11 # network card's IP
NETMASK=255.255.255.0 # Sub-net mask
GATEWAY=192.168.1.1 # IP of gateway
DNS=10.203.104.41 # DNS server's IP
HWADDR=00:0C:29:13:5D:74 # MAC address
BROADCAST=192.168.1.255 # broadcast address

/etc/resolv.conf

This file is of DNS configuration.
And it mainly has four keywords:

nameserver # define the IP of DNS server
domain # define local host domain
search # define the seraching list of domain.It can't co-exist with domain entry
sortlist #

/etc/hosts

This file is the static information about host names (from FHS)
And it seems that the table in /etc/hosts is prior to DNS.
We can test: (I use apache2 on my PC and there is a index.html created by me in the /var/www/html/ directory)

service apache2 start

Then add

192.168.1.103 www.baidu.com

to your /etc/hosts. (Notice that 192.168.1.103 is my local IP)

Then I enter www.baidu.com in your browser's address table: