Complete Referance of Secure Networking in Linux

OpenSSH Samba NIS NFS Securing FTP and HTTP servers OpenSSH Open source version of SSH that normally comes with OpenBSD Comes with several distros or downloadable Linux ports have ‘p’…

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Complete Referance of Linux Security Mechanisms

TCP Wrappers etc/hosts allow and deny inted and xinetd PAMs SELinux Unsecure Linux Utilities TCP Wrappers TCP Wrappers is built into most distros Adds IP filtering capability Enables access logging…

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Complete Referance of Firewalls in Linux Security

Introduction to Firewalls IP Tables Dedicated Linux Firewalls Introduction to Firewalls Firewalls protect network perimeters Not total security solution, but important part of defense in depth strategy Firewalls act as…

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Complete Referance of Hardening in Linux Security

System Hardening Overview Batille Securing X-Windows Securing Linux Daemons Security patches Security Benchmarks System Hardening Overview Linux, like other operatingsystems, is not secure “out of the box” Security increases as…

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Complete Referance of Encryption in Linux Security

Introduction to Encryption Using GNU GPG Using SSH Hashing Utilities Using PKI Certificates in Linux Introduction to Ecryption Linux has built-in ability to encrypt files Protects files in storage Protection…

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Complete Referance of Linux Security

Course Outline Introduction To Linux Security A Bit About Linux Current Security Problems which is more secure: Windows vs Linux? Requirements of a Secure OS Overview of Linux Security Features…

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Ubuntu 20.04.2 LTS display “34 updates can be installed immediately.”

Try Below Commands to update packages A reboot may or may not be necessary (sudo shutdown -r 0) For my machine i use only below command Note : if you…

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Ubuntu 20.04.2 LTS displays “There is 1 zombie process” upon login

To Check the zombie process run below command and Then kill the parent process 👉 For more details read below tutorial on this topic: Click Here

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XAMPP: Another web server is already running

Step 1: Stop the Apache Step 2: and Then Restart Apache 👉 if above command will not work in your machine then do below steps: Step 1 : check the…

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npm

NPM Error: Node Sass does not yet support your current environment

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Ubuntu-Machine

ERROR: sh: 1: cross-env: Permission denied

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Ubuntu-Machine

gyp ERR! stack Error: EACCES: permission denied

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How to install Git on Ubuntu/Linux.

To install Git on Linux/Ubuntu you have to Run the below commands Step 1 :- First check that your packages are updated or not : sudo apt update Step 2…

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HOW TO: INSTALL COMPOSER ON LINUX MINT

About Composer A composer is a tool for dependency management in PHP. It allows you to declare the libraries your project depends on and it will manage (install/update) them for…

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How to stop warnings when opening a file that has a .swp file Linux?

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Linux Tutorials: What is Swap in Linux and Useful Commands

What is Swap in Linux?Swap is a space on a disk that is used when the amount of physical RAM memory is full. When a Linux system runs out of…

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Linux command Error- nohup:ignoring input and appending output to ‘nohup.out’

Error : When i am running below command to run start-seodaily-queue.sh file in background showing above error so let’s see how we can solve this error very easily. Command :…

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Ubuntu or Linux Error: Unable to access XAMPP MySQL from /opt/lampp/bin/mysql

Here’s the complete article on the solution with baby steps:How to link php from XAMPP installation to use php command from user or any other directory in Ubuntu or Linux

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How to link MySQL from XAMPP (/opt/lampp/bin) to use mysql command from any directory in Ubuntu or Linux

Assumption: I assume that you have already installed XAMPP in your Ubuntu OR Linux machine.If not, then you may follow this link to do so: https://www.devopsschool.com/blog/installing-xampp-7-4-xxx-on-ubuntu/ and https://www.devopsschool.com/blog/how-to-link-php-from-xampp-installation-to-use-php-command-from-user-or-any-other-directory-in-ubuntu-or-linux/ NOTE: I also…

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