Linux, Windows, Security, Programming, Network Tutorials
Generating random numbers can seem odd. But it is very important for security. Insecurity field whatever best cipher or algorithm you use if you can’t generate random numbers it is useless from point of view of security. So how can we generate random numbers in a Linux environment? Generate With urandom File urandom is a device … Read more
Scapy is a tool for network protocol, package generation and manipulation and showing them in a visual way with graphics and 3D images. There are tools equivalent like hping3 but scapy is very flexible against it. Scapy can manipulate all data of general protocols like IP, Ethernet, tcp, udp etc. If you have a network … Read more
Python programming language provides different ways to check file existence. In this tutorial we will examine functions like isFile() and exists() to check file existence. Import os.path Module In order to use isFile() and exists() functions we need to import the os.path module which contains these functions. import os.path isFile() Method isfile() is a function in os.path library. This function … Read more
I want to run some python scripts but want to learn version of the python installed on the system. How can I do that? This works almost all operating systems from Windows to Linux, from Mac OS to Bsd. Get Version Of Default Python Interpreter We can get default python interpreter version like below. As … Read more
Pip is a python package manager. Python packages and libraries can be installed in different ways to the system. We can also use the distribution provided package manager to install Python libraries. Python packages can get from pypi.python.org . How can we install pip in Debian, Ubuntu, Kali, or similar dpkg, apt-based distributions. “Command ‘pip’ … Read more
Null Reference Exception is one of the most occurring exception. Object oriented languages generally creates new object for the variables. But if it is not created and not set by the developer trying to access an variable object will cause Null Reference Exception. In this examples we will use Csharp programming language for Null Reference Exception. … Read more
Python supports different types and format strings. In this tutorial, we will simply look at multi-line strings. We have the following code and want to type it in a single expression in multiline. As a practical programming language Python provides different ways to create multi-line strings. Joining Line By Line The most basic and simplest … Read more
pip is a tool used to install Python modules from a central python repository. While using pip command there may be some error like ffi.h gcc .This error will look like below. #include <ffi.h> ^ compilation terminated. error: command ‘gcc’ failed with exit status 1 Install libffi-dev This problem is related to the libffi libraries. … Read more
The string is a type used to hold text data in Python programming language. We can hold name, surname, address, text or similar data in strings. There are different functions that can be used with these string data. In this tutorial, we will look at them in detail. Define String Variable Defining string is easy … Read more