Linux and basic cmds.

Linus Benedict Torvalds is the creator and, historically, the principal developer of the Linux kernel, which is the kernel for GNU/Linux operating systems.

Many of us think that Linux is an OS but the fact is that it is not, Linux is a kernel which is essential part of computer .Linux Distributions such as ubuntu, centos ,kali Linux are OS which are based on Linux Kernel .Now we are clear with what is Linux and another thing we should know is about GUI and CLI. Many times we have heard GUI but what actually is GUI. GUI stands for Graphical User Interface .And CLI stands for Cmd Line Interface. In GUI we Use our mouse to do a particular task. And in CLI instead of  mouse we use cmds to do that task. Windows OS uses GUI as it is easy to operate. And Linux is a Command Line Os where we have to write cmds to perform a particular task.

• Basic Linux Commands : 

1. uname : to get the name of distro that you are using.
2. touch : to create new file. eg touch "file name".
3. mkdir : to create new directory. eg mkdir  "dic name".
4. rm : to delete a file.
5. rmdir :to delete a directory
6. ls : to list the files/directories present the a directory.
7. cd : to change the directory .eg cd home/kali/Desktop.
8. pwd : print the present working directory.
9. clear : clear the screen.
10. history : print the history
11. ifconfig : print the ip address of the machine.
12. cp : copy a file.eg cp "file name".
13. mv : move a file or directory eg mv "location where to move".
14. grep : search for string of characters.
15. less : display content of a file. 
16. cat : to read a file.
17. cat > : read + write.
18. vim : text editor
19. nano : text editor in kali.
20. chmod : to change or edit the permission of a file.
21. echo : to print the input given by you. eg echo Im best.
22. su : switch user.
23. adduser : to add a new user.
24. sudo : to get root privileges.
25. -apt -get update && apt -get upgrade : to update/upgrade the system.
26. man : to get manual of a file/directory/application. eg man ls.
27. exit : to exit the terminal.
28. shutdown : shutdowns the machine.
29. reboot : Reboots the system
30. logout : logout the present user.

Read More

Install Kali Linux on Windows

KALI LINUX : 

Kali Linux is a Linux distribution by Offensive Security for Penetration Testing.Kali is widely used by ethical hacker because it has many preinstalled tool which are required for ethical hacking.And the second reason for being used is its a Linux OS which  is just awesome.

INSTALLING VIRTUAL BOX :

For installing Kali we will use Oracle Virtual Box which is a very popular application because of its ease of usage.Virtual Box helps us to create a virtual machine by staying in Windows which is the primary OS in our device.Just click on the link and you will see offical website of oracle virtual box so you have to download it for windows.And make sure that you also download extension package . 

INSTALLING KALI LINUX:

Many youtubers will suggest you to download the ISO file of Kali but I will not suggest you to do that because it consumes more data and if you are a student like me then you know the value of internet data . I have given a link so click there and download Kali Linux Virtual Box images.

CONFIGURING KALI LINUX:

After downloading VM Kali Linux images you will see a file just double click it and wait for some moment and it will get launched in the Virtual Box and now you just have to do some setting as shown in the pictures.

If you have 8 Gigs of RAM then give at least 4 Gigs to the VM and if you have 4 Gigs then give accordingly.If your CPU is hexa core then give at least 6 threads to VM.If your CPU is quad core then set it to some low value.

The most important part is about Network configuration. Do the settings as shown in the picture.This settings will help you to use internet in you VM using WIFI of your device.

After doing all the configuration just click on start and wait for some moment it will load.Use kali as username and pass then login and you are done here start learning ethical hacking.

Note: When you install Kali Linux you don't have root privileges means you cant access all the tools present in kali because some tool needs root privileges.you have to use sudo su cmd then enter the pass and then you will be able to use that tool.

Read More

How to start Ethical Hacking from scratch?

Ethical Hacking is an authorized practice of bypassing system security to identify potential data breaches and threats in a network.This is the standard definition given by the EC council .But in simple words ethical hacking a technique of finding weakness or gap which are present in a network.From these gap hackers can steal sensitive data of a company.Ethical Hacker are those who know all the techniques and skill which are known by a hacker.The difference is that ethical hacker use their knowledge and skill for Good stuff.In case of hacker it is exactly opposite.I am gonna tell you some KSA's that are required by an Ethical Hacker. 

KSA's :

COMPUTER FUNDAMENTS:

I have already given the link,from there you can read in detailed description about Computer Fundamentals.You should read all the details about Computer Fundamentals because clearing basics is the first and most important step of learning something New.The points that you must read from the website are computer memory,computer virus and computer networks.

COMMON OS :

There are mainly three common OS which are known by all of us and they are Windows, Linux and MacOs.In Ethical Hacking most of the time you will be dealing with Linux because Linux is best for Network Scanning,Pentesting ,etc.As Linux is a command line OS you should know basic commands like touch, pwd, clear, cd, nano ,etc.In upcoming days I am going to post a separate post on Linux command and their implementation.

NETWORKING : 

You should have in depth knowledge about Networking because ethical hacker's job is to look over the companies network and find every possible gap(Vulnerability) in the network from which data can be leaked.For finding this gaps you should know the working mechanism of networking .

PROGRAMMNG LANGUAGES:

Ethical hacker have to make their own tools so that these tools can help him for finding the gaps present in the network or to protect the sensitive data of company from getting stolen by a hacker. For making this kind of tools you should have knowledge about programming languages and also about making programs which can help in defense against Hackers. Python is the most popular programming language used by hackers. 

OTHER COMMON THINGS :

Security Standards, Social Engineering ,Vulnerability development and many more. Becoming an ethical hacker is not an easy job ,you have to keep updating yourself because hacker can use any attack to harm your company and you have to be ready for every possible attack.

MOST COMMONLY USED TOOLS BY ETHICAL HACKER :

• Kali Linux.
• Metasploit   
• Wire Shark
• Nmap.
• Air crack.
• RootKit(suite of tools).

Kali have many tools preinstalled which are required for ethical hacking ,for starting ethical hacking you just have to install kali. You can Install kali on Your windows using virtual box by oracle.

Read More