2021-03-26 20:23
Nmap (Network Mapper) is a free and open-source utility for network discovery and security auditing.What can be done with NMAPHost DetectionPort Scanning Service and Version DetectionOp… Read More
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www.admincool.com is a website that publishes useful articles, tips, tutorials, related to both Linux and windows. Our goal is to reach anyone who interested in Linux and windows related topics and improve their skills.
2021-03-26 01:37
Policies allow you to create custom templates defining what actions are performed during a scan.Previous article: How to Install Nessus on KaliStep 1:In the Nessus… Read More
2021-03-26 01:23
Step 1: Update┌──(kali㉿kali)-[~] └─$ sudo apt updateStep 2: Install OpenVAS┌──(kali㉿kali)-[~] └─$ sudo apt-get insta… Read More
2021-03-20 23:17
Previous articles: How to Install Nessus on Kali , How to Create a policy in NessusStep 1:Go to My Scans section and click New ScanStep 2:Go to User Defined Scan and select ou… Read More
2021-03-20 21:23
Policies allow you to create custom templates defining what actions are performed during a scan.Step 1:In the Nessus interface, Click Policies on the left side. Click on Create a Policy link… Read More
2021-03-20 20:21
Nessus develop by tenable network security is one of the most popular vulnerability scanners. Nessus allows scans for the following types of vulnerabilities.Allow remote hacker to control or… Read More
2020-08-10 18:02
LVM CreationStep 1 : Create Physical Volume (PV) # pvcreate /dev/nvme3n1Step 2: Create Volume Group (VG) &nbs&hell…Read More
2020-08-10 17:22
Step1 : Go to /etc/sudoers.d/ directory # cd /etc/sudoers.d/Step2: Create a file and add the following content. Change the username with y… Read More
2020-08-10 17:07
Step 1: Install pip using following commands. # curl… Read More
2020-08-10 16:51
Convert pfx to pem : # openssl pkcs12 -in admincool.com.19175758709.pfx -out admincool.pem -nodes Read More
2020-08-10 16:40
ErrorMount command is working but file system is not mounting and df is not showing all mounted filesystems on Red HatSolution # system… Read More
2020-08-10 16:30
Create a tar file # tar -cvf aaa.tar aaa/List all files in a tar # tar -tvf aaa.tar&nb&helli…Read More
2020-08-10 16:10
ResolutionRebooting will recreate the /etc/mtab file.If rebooting is not an option, as a temporary workaround, copying the contents of /proc/mounts to /etc/mtab &nb&hell…Read More
2020-04-18 19:00
Register and automatically subscribe in one step # subscription-manager register --username --password --auto-attach Assign the system to an organizatio… Read More
2020-04-18 18:28
chage command is used to list & change the password aging information on Linux environmentsTo listing password aging for user # cha… Read More
2020-04-18 17:58
This guide will explain how to add a secondary IP address to a network interface on RHEL / CentOS server.Here I have an network interface called ifcfg-ens5.Step1: You can use ip addr command… Read More
2020-04-14 15:06
How to configure SSH public key authentication for password less login on Red HatStep 1: Generate SSH key pair using ssh-keygen command # ssh-keygen⦁ By default, ssh-k… Read More
2020-04-14 11:51
How to Configure SFTP on Red HatHow to set up SFTP on Red HatSet up sftp to chroot only for specific users, so that user can't get out of their home directoryServer ConfigurationStep 1: &hell…Read More
2019-02-15 12:23
How to Solve PYCURL ERROR 6 – Couldn’t resolve hostSolution : Edit /etc/resolv.conf and add the line "nameserver 8.8.8.8" to use Google nameserver &nbs&hell…Read More
2019-02-15 07:06
Basic commands in Linux not working :-bash: vim: No such file or directorySolution: Reset your path with the following command # export PATH=/usr/local/sbin:/usr/local/bin:… Read More
2019-01-24 05:21
IntroductionIn this article, we will discuss about Docker, is an open-source lightweight virtualization tool which runs at top of Operating System level, allowing us… Read More
2018-11-24 05:34
dmidecode is a tool, used to dumping computer's BIOS table content into human readable format. It retrieves description of the system’s hardware components,serial numbers and BIOS… Read More
2018-08-14 07:03
Amazon S3 (Simple Storage Service) is a cloud computing web service offered by Amazon Web Services (AWS). Amazon S3 provides object storage through web services interfaces. This article desc… Read More
2018-06-18 07:17
When a subject (an application) attempts to access an object (a file), the policy enforcement server in the kernel checks an access vector cache (AVC), where application and object permissio… Read More
2018-05-07 12:10
Ths article provides guide for creating, launching, and managing an EC2 instance in Amazon Cloud.Before you begin AWS, Please read our previous articles to understand about Am… Read More
2018-03-19 14:20
In this article, we explains How to Install RabbitVCS in Linux Mint / UbuntuRabbitVCS is a graphical front-end for version control systems available on Linux. It integrates into f… Read More
2018-03-19 14:17
In this article, we explains How to Install Microsoft Windows Fonts in Ubuntu / Linux MintMicrosoft TrueType core font package (ttf-mscorefonts-installer) offers following fonts, … Read More
2018-03-15 03:53
In this article we explains How to Install ConfigServer Security & Firewall (CSF) in RHEL,CentOS CSF is an open source Stateful Packet Inspection (SPI) iptables firewall that i… Read More
2018-03-12 11:37
In this tutorial, we explains How to setup mail server using Postfix, Dovecot and SquirrelMail in CentOS/RHELPostfix is a free and open-source mail transfer agent (MTA) that routes and deliv… Read More
2018-02-27 13:13
This article describes How To Set Up and Use Yum Repositories on a CentOS / RHEL from DVD ISOCentOS DVD ISO contains large number of RPM software packages. By using this packages we can crea… Read More
2018-02-27 11:00
This article describes How to Install xrdp Remote Desktop on CentOS 6 / RHEL 6Rdesktop is an implementation of a client software for Microsoft's proprietary Remote Desktop Protocol (RDP… Read More
2018-02-26 06:22
This tutorial describes how to install and configure Linux, Apache, MySQL, PHP (LAMP) On CentOS 6LAMP is an opensource web service stacks, consist of four components: the Linux operati… Read More
2018-02-21 13:17
This tutorial describes How to Managing Users and Groups in LinuxThe most important part of system administration is configuring and managing users and groups. This article describes ho… Read More
2018-02-21 06:20
This article describes How to install and configure Canon LBP2900B printer in LinuxSteps: 1. Download Canon LBP2900B Printer driver for Linux https://drive.google.com/drive/fo… Read More
2018-02-01 06:53
This article describes how to Create and Configure FTP Server on Windows using IISStep 1: Install File Transfer Protocol (FTP) ServiceTo install IIS on Windows Server 2016&nbs&hell…Read More
2018-01-27 09:11
This article describes how to build a static website on IIS (Internet Information Services)Step 1: Install IIS Web ServerTo install IIS on Windows Server 2016 by using the GUI,1. … Read More
2018-01-26 08:45
Linux Performance Monitoring Tools1. toptop command will display Linux tasksThe top program provides a dynamic real-time view of a running system. It can displa… Read More
2018-01-19 07:35
This articles explains how to disable Internet Explorer on Windows.Method 1: Use Control Panel This method can be applied only in client systems1. On client systems, Go to Control Panel… Read More
2018-01-18 12:52
Linux ArchitectureThe architecture of a Linux System consists of the following layersHardware layer Hardware consists of all peripheral devices (RAM/ HDD/ CPU etc)Kernel It is the core… Read More
2018-01-18 12:47
Linux Filesystem HierarchyThis article describes Linux Filesystem Hierarchy/Primary hierarchy root and root directory of the entire file system hierarchy./binEssential command binaries… Read More
2018-01-18 10:29
Linux Boot ProcessPress the power button on your system, and after few moments you see the Linux login prompt. This process contains following Steps.STEPS:1. Power on2. BIOS Initializa… Read More
2018-01-05 08:51
IntroductionMicrosoft SQL Server is a relational database management system developed by Microsoft. As a database server, it is a software product with the primary function of storing and re… Read More
2018-01-04 10:18
IntroductionMicrosoft SQL Server is a relational database management system developed by Microsoft. As a database server, it is a software product with the primary function of storing and re… Read More
2017-12-30 10:32
IntroductionMicrosoft SQL Server is a relational database management system developed by Microsoft. As a database server, it is a software product with the primary function of storing and re… Read More
2017-12-28 09:37
This article describes how to install oracle database 12c on windows.Download oracle setup from  &hell…Read More
2017-12-23 10:10
Amazon Elastic Block Store (EBS)* persistent block level storage volumes.* can install os .* automatically replicated within its Availability Zone * high availability and du… Read More
2017-12-23 10:01
COMPUTE EC2* CLOUD MEANS RESOURE ON DEMAND* EC2 IS NOTHING BUT YOUR VM* OFFERS VMS ON DEMAND* LIKE SELF SERVICE IN HOTELS* IF A DEVELOPER NEED VPS IF HE HAVE THE RESOURSE HE DON’T NEED… Read More
2017-12-23 09:51
AWS Global Infrastructure* 35 avalability zones with 13 regions* 9 Availability Zones and 4 Regions coming online next year.AWS Regions and Availability Zones* A Region is a physical locatio… Read More
2017-12-23 09:40
What is Cloud Computing?"Cloud Computing", by definition, refers to the on-demand delivery of IT resources and applications via the Internet with pay-as-you-go pricing.Types of Cloud Computi… Read More
2017-12-23 07:02
This tutorial describes how to install GUI environment on centos sever version.Video TutorialSteps1. Login to your OS2. Make sure that your packages and dependencies are up-to-date. # yum u… Read More
2017-12-20 14:55
This article describes How to schedule postgresql auto vacuum in linux.Step 1: Create a .pgpass file under your home directory. &nb&hell…Read More
2017-12-20 14:53
PrerequisitesOS : CentosJAVA : JDK 8Web Server : Apache TomcatSSL Authority : Symantec SSL or ComodoDomain Name : From Godaddy or from any others1. For OS Installation Please Refer our Previ… Read More
2017-12-19 10:00
Apache Subversion (often abbreviated SVN, after its command name svn) is a software versioning and revision control system distributed as open source under the Apache License. Software devel… Read More
2017-12-19 09:59
This article describes how to delete Apache Tomcat catalina.out log.Step 1 : Go to apache tomcat log directory [roo… Read More
2017-12-19 09:56
In this post we will see How to install VirtualBox on Windows 7,8 and 10. Oracle VM VirtualBox (formerly Sun VirtualBox, Sun xVM VirtualBox and Innotek VirtualBox) is a free and open-source… Read More
2017-12-19 09:55
In this post we will see How to Install Linux on Windows Using VirtualBox. Oracle VM VirtualBox (formerly Sun VirtualBox, Sun xVM VirtualBox and Innotek VirtualBox) is a free and open-source… Read More
2017-12-19 09:50
Apache Tomcat is a opensource web server that is developed by Apache software foundation.It is bascically used for deploying java web application. It is run on port 8080.1. Download apache t… Read More
2017-12-08 11:33
Apache Tomcat is an opensource web server that is developed by Apache software foundation.It is bascically used for deploying java web application. It is run on port 8080.1. Download jdk-ver… Read More
2017-12-08 11:32
1. First install the apache server. http://rapidsolutions4u.blogspot.in/2016/09/inst… Read More
2017-12-08 11:31
1. First install the apache server. http://rapidsolutions4u.blogspot.in/2016/09/install-a… Read More
2017-12-08 11:30
1. Open fstab file #vim /etc/fstab/2. Add the following line. /192.168… Read More
2017-12-08 11:30
1. Go to apache installation folder # cd /home/apache-tomcat-8.5.4/bin/2. Edit setenv.sh as follows &n&hell…Read More
2017-12-08 11:29
1. Install crontab In centos,redhat: # yum install cron*2. Open crontab. &n&hell…Read More
2017-12-08 11:28
du is a linux command, is to display the file space allocated to each file and directory contained in the current directory. It Summarize disk usage of each FILE, recursively for directories… Read More
2017-12-08 11:27
This article describes How to schedule postgresql auto backup in linux.Step 1: Create a .pgpass file under your home directory. &nbs&hell…Read More
2017-12-08 11:27
FTP is a file transferring protocol used to transfer form one host to another over TCP.Package used for ftp server is vsftpd (Very Secure FTP Daemon). It is able to handle number of connecti… Read More
2017-12-08 11:25
This article explains how to backup directories to google drive.1. Install google drive. Use the following link ti download… Read More
2017-12-07 11:35
1. Open Monitor Tomcat.2. Go to java (4th tab).3. Change initial memory pool (-Xms) and maximum memory pool (-Xmx).4. Click Apply and Ok Read More
