HackerRank Solution: The Captain's Room
Explore three solutions for the HackerRank "Captain's Room" problem using Python. Learn how to use the Counter module, mathematical formulas, and set operations combined with loops and counting methods to identify the …
How to check the lock status of any user account in Linux
In this article I will share different methods to check the lock status of a user in Linux or Unix environment. Using these commands and methods you can
How to configure remote port forwarding (openssh & firewall)
How to configure remote port forwarding to bypass firewall openssh. The tunnel is initiated from server-host back to the client. Port forwarding using firewalld
How to restrict or allow ssh only from certain users, groups or hosts in Linux
How to allow SSH for root login only from specific host or IP address? How to configure and restrict SSH to permit login only for certain users and/or groups?
How to set up GFS2 with clustering on Linux ( RHEL / CentOS 7 )
configure and setup gfs2 file system with pacemaker cluster on rhel or centos 7 linux. configure gfs2 fs resource constraint using clvmd and dlm
Snapchat Phishing Attack Using Grayfish Tool
Step by step instructions to perform snapchat phishing using grayfish. Hack snapchat account using grayfish with examples
Solved: Boot into rescue mode without password (RHEL/CentOS)
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Spectre v2 mitigation leaves CPU vulnerable to RETBleed attacks in Ubuntu
The other day I noticed this specific message on the console of Virtual Box VM installed with Ubuntu 22.04 RETBleed: WARNING: Spectre v2 mitigation leaves CPU vulnerable to RETBleed attacks, data leaks possible! As you …
Step-by-Step: RHEL/CentOS 8 installation with screenshots
Step by Step Installation Guide for Red Hat Enterprise Linux 8 Beta. Install RHEL 8 Beta with screenshots. How to install RHEL 8 Beta Linux with images.
How to Set Up a WordPress Reverse Shell
Step by Step instructions to setup wordpress reverse shell using 3 different methods. Setup reverse shell using metasploit framework, vulnerable plugins, editing wordpress themes.
Learn Node.js debugging Tips & Tricks [With Examples]
This tutorial teaches you how to get started with Node.js debugging on the terminal. You will not install any extension or package because we will utilize the
How to Compute Square in Java
There are four different ways to compute square of a number in Java, Using multiplication operator *, Using Math.pow() function, Using BigInteger.pow() function, Using Apache Commons Math API
How to capture serial console dump from HPE iLO4 using VSP (with screenshots)
In this article I will share the steps to capture serial console dump from iLO4 using VSP with screenshots which can help you troubleshoot RSOD issue in BIOS
How to fetch images from Node.js server
2 different ways to fetch images from node.js server using practical examples. Use built-in http module and express framework
SOLVED: Mask password with asterisk from console in Java
2 different ways to mask password with asterisk from console input in Java. Hide password with asterisk in Java. Display asterisk instead of password in Java input
Hackerrank Solution: Validating credit card numbers in Python
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Set up GitLab with Visual Studio Code from Scratch
Step by Step instructions to setup gitlab with visual studio code with screenshots. Connect GitLab with VSC and create your first project, commit changes, push to gitlab using VSC.
How to check and set Java timezone (update tzdata for openJDK) using tzupdater
Steps to set java timezone using tzupdater update tzdata for openjdk in CentOS RHEL SLES. Check current tzdayta version in JRE java -jar tzupdater.jar -V
How to prevent user from using old password (or re-using) again in Linux
How to prevent user from using old password or reusing old password while providing new password in CentOS/RHEL 7 Password has been already used. Choose another
How to generate sosreport in rescue mode on Software RAID (RHEL/CentOS 7)
How to generate sosreport in rescue mode linux. Fix sosreport command not found. Boot using RHEL/CentOS DVD to rescue mode in linux with software raid linux
Fix: the domain status of virtual connect manager is not ok update will not continue
Earlier I was getting an error "The domain status of Virtual Connect Manager is not OK Update will not continue" while performing firmware upgrade of my Virtual Connect wherein one of my VC module had a hardware error …
How to configure port forwarding in VirtualBox for NAT Networking
Configure port forwarding in virtualbox NAT Networking using command line CLI using VboxManage GUI. ssh into virtualbox from windows port forwarding computer
How to PROPERLY change mount point name in Linux
Step by step instructions to change mount point name in Linux. Change mount point name without any downtime or any data loss. 100% risk free steps.
Hackerrank Solution: Validating Email With a filter in Python
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How to Install Apr And Apr-Util in Linux
Step by Step instructions to install apr and apr-util in Linux. 2 different ways to install apr and apr-util. Install from github page on ubuntu, debian, centos, redhat, rocky linux, alma linux etc
Hackerrank Solution: Triangle Quest in Python [3 Methods]
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Hackerrank solution: No Idea! in Python [5 Methods]
5 different ways to solve no idea hacker rank question with explanation in python and python3
Hackerrank Solution: Find Angle MBC in Python [4 Methods]
4 different ways to solve find angle mbc hackerrank solution in python3.
Hackerrank Solution: How to check leap year in Python
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How to use Node.js REPL Effectively
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