Basic Input and Output System simply know as BIOS is the first thing which is loaded by the computer. BIOS is designed to initialize a computer properly and load the real full features operation system like Windows, Linux, etc. BIOS is a low-level software where it provides very little but crucial features for its users. BIOS Functions BIOS has some basic functions in order to start the computer and load...
An operating system is a software which is used to operate, use computer or server hardware and provide these sources to the user applications. Operating systems is an intermediate software which is very important for computers and servers because it provides a lot of different services to the user side applications. Operating System History Operating system history consists of mainly 4 phases. First Generation (1945-1955) First operating systems are created...
WMIC or Windows Management Interface Command is a simple command line tool used to issue WMI commands. WMI command generally used to query all of the system related information like Computer Name, BIOS Serial Number, Mac Address etc. Batch WMIC WMIC provides two type of usage. Batch usage is the most popular where we can issue WMI commands into MS-DOS or PowerShell like below.
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> wmic /? |
Interactive WMIC Command Line WMIC also...
Windows operating system provides services in order to complete task in the foreground. There may bcome different type of job services in order to accomplish tasks like printing, network authentication, encryption etc. Windows provides a lot of services by default. But more services can be added by third party applications or other tools. services.msc is a shourtcut to service management console. In this tutorial we will look how to open...
Nmap is the most popular tools used in penetrations test or assessments for network scanning. Nmap have another features like listing some basic vulnerabilities and protocol related details. We will look Nmap features in fast way. For more detailed information read following tutorial. Nmap Tutorial Target Selection Target is the remote system nmap will scan. Scan Single Ip
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nmap 192.168.1.1 |
Scan A Host
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nmap google.com |
Scan A Range of IP
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nmap 192.168.1.1-30 |
Scan...
[rps-include post=6632] One of the most popular feature of nmap is its Operating System detection from network packets values. To get reliable detection result at least one port of the target should be open. Enable Operating System Detection Operating system (OS) detection can be enable with -O . On the other side -A parameter also provides operating system information. To use operating system detection nmap command should be run with root privileges because lower...
Windows operating system have a lot of third party tools used to get detailed system information like operating system, version, boot time, processor etc. We will look simple single command systeminfo to get detailed system information. List Information We will just issue the systeminfo command to get information about the computer.
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$ systeminfo |
We will get following information about the computer. Host Name OS Name OS Version OS Manufacturer OS Configuration OS Configuration...
Virtualization and cloud computing is future of the IT. There are a lot of tools and architectures to make virtual the systems. Every big vendor have their original or clone virtualization technology or ecosystem. Linux provides KVM, Qemu for opensource, fast virtualization. Open source cloud ecosystem Openstack is mainly positioned on KVM,Libvirt and Qemu. In this tutorial we will look how to use virt-install tool to create new virtual machines. Installation...
What makes an Operating system Linux Distribution? All Linux distributions use same kernel named Linux Kernel. Linux kernel provides operating system services, hardware management, process management, memory management etc. Linux kernel is a monolithic kernel which means single executable all in one. But the operating systems should provide dynamic environments to comply user needs. Linux provides mechanism to load some drivers, features etc. This is called kernel modules. In this...
Unix operating system is the root of multi tasking operating systems. We can call Unix as first modern operating system that provides advanced operating system features like kernel,development tool, user and admin commands, multi tasking etc. Unix operating system is developed 1970’s in Bell Labs research center by Ken Thompson, Dennis Richie and others. Unix is developed for Bell Systems internal usage but it is wide spread along universities and...
