Recently CentOS7 update fix the iputils package ping command, The ping command no longer works with IPv4 address
February - 2017
January - 2017
The installer checks the date on the computer. If the date isn’t current, you get the error above. The fix involves correcting the date on your Mac.
December - 2016
In this guide we can push empty commit on remote repository, Which allow us to setup the deployment process easily.
How to fix SSH Agent issue on MAC OS X Sierra with auto startup script file
September - 2016
Monitor SSL Labs Results with Nagios Monitoring System
Check Domain Expire Date With Nagios Monitoring System
In this guide I'll show you how to setup separate NGINX FastCGI cache for Mobile & Desktop users.
Step by step guide to add remote server on Nagios System
Step by step guide to Configure Nagios
Nagios is an enterprise class, open source software that can be used for network and infrastructure monitoring. Using Nagios, we can monitor servers, switche...
August - 2016
How to fix running out of inodes issue
July - 2016
How to fix NGINX writes logs into access.log.1 instead of access.log issue
Ansible is an IT automation tool. It can configure systems, deploy software, and orchestrate more advanced IT tasks such as continuous deployments or zero do...
s3cmd is the best command-line tool to manage S3 buckets. Sometimes, you will need to know the size of some of your bucket
How crashchrome.com works and clear Google Chrome History
How to Fix Nf_conntrack Table Full Dropping Packet Issue on CentOS server
June - 2016
Step by step guide to disable/block or blacklist package updates using APT
This guide will show you how to add an extra IP address to an existing interface in Red Hat Enterprise Linux / CentOS 7.
How to fix - reload: Job is not running: nginx
May - 2016
How to build OpenSSL & Curl Package to make connection on TLS1.2 Enable Websites.
April - 2016
Running docker containers in different ways
Step by step guide to install Docker on Ubuntu, Debian ,CentOS & Mac
March - 2016
How to use Apache on Gitlab CE.
In this guide, we will demonstrate how to get a WordPress instance set up with an Apache web server on CentOS 7.
A LAMP (Linux, Apache, MySQL, PHP) stack is a common web stack used for hosting web content. This guide shows you how to install a LAMP stack on a CentOS 7 s...
Step by step guide to fix charles proxy hang/crash issue on Ubuntu OS
How to fix Google Chrome unable to find expected entry ‘main/binary-i386/Packages’ in Release file
February - 2016
Sentry provides real-time crash reporting for your web apps, mobile apps, and games.
January - 2016
An interesting sudo feature is the ability to insult you when you type a wrong password. It has really funny phrases.
Sometimes we need to check installed software on multiple system and install missing software asap.
Sometimes by mistake we push commits on remote branch. I'll show you how to remove/delete last commit from remote branch
Maltrail is a malicious traffic detection system, utilizing publicly available (black)lists containing malicious and/or generally suspicious trails, along wi...
December - 2015
Augmented Traffic Control (ATC) is a tool to simulate network conditions. It allows controlling the connection that a device has to the internet. Developers ...
A Point-To-Point Tunneling Protocol (PPTP) allows you to implement your own VPN very quickly, and is compatible with most mobile devices. Even though PPTP is...
October - 2015
If you are getting an error like `DynamicClientBase: JSONDialog: Error running jsondialog, status`
Step by Step Guide to Recover/Repair MAC HFS+ HDD on Ubuntu Linux
Create Bootable Ubuntu USB & Fix gfxboot.c32 not a com32r image boot problem
Redpill - Matrix ScreenSaver For Mac OS X (Yosemite & Ei Captain)
How to monitor logs realtime in your web browser.
September - 2015
If the terminal understands the sequence, it won't display the character-sequence, but will perform some action.
Sometimes, We need to block Social Networking websites like Facebook to deal with slow internet.
This is a short post explaining how to deal with Metasploit instance not connected to its Database
August - 2015
Asciinema is a free and open source solution for recording terminal sessions and sharing them on the web.
Simplify Your Life With an SSH Config File
Step by step guide to configure NGINX/WordPress/EasyEngine Logs on ELK Stack.
Step by step guide to configure Fail2Ban Logs on ELK Stack.
Step by step guide to configure Squid3 Logs on ELK Stack.
Step by step guide to Monitor System with ELK Stack.
Step by step guide to configure Kibana - An open source data visualization plugin for Elasticsearch.
Step by step guide to configure Logstash - Transport and process your logs, events, or other data
Step by step guide to configure ElasticSearch – The Open Source, Distributed, RESTful Search Engine
Step by step guide to configure Collectd – The system statistics collection daemon
Step by step guide to install Kibana - An open source data visualization plugin for Elasticsearch.
Step by step guide to install Logstash - Transport and process your logs, events, or other data
Step by step guide to install ElasticSearch – The Open Source, Distributed, RESTful Search Engine
Step by step guide to install Collectd – The system statistics collection daemon
How to fix Virtualbox Permission issue on MAC OS EI Capitan
MAC OS X - Show/Hide Hidden Files in Finder
How to customize CommandLine/Terminal and add some Rainbow Colors and Emoji icons on that.
All about NGINX and APACHE 301 Moved Permanently.
How to Download and Install OS X El Capitan Public Beta
How to Remove Password From PDF Files on Linux.
July - 2015
How to setup and run Kali Linux with Metasploit tool under the Mac OS X
Mycli is a command line interface for MySQL, MariaDB, and Percona with auto-completion and syntax highlighting.
How to bypass Apple's security and gain administrator-level privileges on an OS X Yosemite Mac using code that fits in a tweet.
How to tell NGINX to change it's behavior for specific time windows. Extremely useful for lazy system admins like me
How to fix Remote Host Identification has Changed issue.
A Step By Step Guide to Remove/Uninstall Adobe Flash Player On Windows/Linux/Mac OS and Block Adobe Flash Player on Google Chrome/Firefox/IE Web Browsers.
Findout how many Processors available on your system/servers using the simple command nproc.
HTTPie - Command Line HTTP Client, Also Known for cURL and wget command Alternative.
Smartphone Test Farm (STF) is a web application for debugging smartphones, smartwatches and other gadgets remotely, from the comfort of your browser.
Linux doesn't provide native support to exFAT File System. In this tutorial I'll show you how to access the exFAT File System in Linux.
How to fix NGINX Error - [emerg]: bind() to 0.0.0.0:80 failed (98: Address already in use)
Quiz - How to create new directory and change its Permission with single command
How to execute commands Without Login into user shell
DuckDuckGO - Awesome Search Engine to quickly find required information.
Most useful Linux/Unix Commands, A collection of commands which can save lot's of our typing time.
How to Upgrade Multiple WordPress, WordPress Plugins and WordPress Themes with single command.
How to Change Windows 7 Product Key or Activate Windows Using Legal Key
It's hard to explain How to Edit Hosts File on Linux, Mac and Windows.
The Hosts file is used to map Hostname to IP address.
How to Flush DNS Cache on Mac OS
The Hosts file is used to map Hostname to IP address.
Studies show that users leave a site if it hasn't loaded in 4 seconds; keep your users happy and engaged by providing a fast performing website!
Sometimes we need functionality which can perform search and replace for us so we can directly copy paste codes.
Transform Google Chrome, Firefox or Safari Web Browser Windows Into Quick Edit Notepad.
June - 2015
As a Linux System Admin I'm always need to monitor system logs for any unauthorized activity like brute force attack or co-worker trying to guess the server ...
Sometimes we made lots of commits locally and want to push specific commit to the remote branch. I'll show you how to push specific/single commit on remote b...
Sometime we have to give temporary access to some github user, I'll show you how to easily find fithub users public keys.
How to change bash custom prompt and make it more usable. Think when you enter wrong command your bash prompt turn into RED.
As a System Admin, I've to check some Package is installed or not. In this article I'll show you how to properly check some package is installed on your syst...
Sometimes we need to check weather some Website is down for everyone or It's just for me.
How to generate some random password by using single command
How to automatic reload NGINX, When some of website configuration files Modify/Created/Deleted.
How to Disable CPU Cores In Linux Operating System
Most of time I'll open system files with vim and after edit the system file vim says It's readonly file.
How to reset files and directory Permissions with single command
How to Assign Multiple IP Address to Single LAN Card using IP Aliasing
If you are new to Linux, chances are you will meet a stupid person perhaps in a forum or chat room that can trick you into using commands that will harm your...
How to Download Youtube Videos with single command
Sometime IPv6 slow down internet connections, In this article I'll show you how to disable IPv6.
All about OS X Hacks
Each time you start a Mac, you'll hear a familiar start-up chime. I'll show you how to mute the Mac start up chime completely.
How to clean install of OS X Yosemite from bootable USB/HDD
This article will teach you how to install network tools, such as nmap, mtr, nikto and dnsmap
This article will teach you how to find out system information, such as Operating System, Serial Number, Processor, RAM and MAC Address, License Key
Get latest Security News on your Terminal
Simple curl command which is useful when we want to test staging website without edit /etc/host file or DNS
Newbie Guide - Install Git, OpenSSH-Server, Java, Shutter, Hipchat, VLC and Google Chrome on Mac OS
Newbie Guide - Install Git, OpenSSH-Server, Java, Shutter, Hipchat, VLC and Google Chrome on Ubuntu 14.04 (Trusty Tahr), Ubuntu 16.04 (Xenial Xerus) Linux
Newbie Guide - All about MySQL Database Server
Newbie Guide - All about Linux system boot sequence
Newbie Guide - All about system logs, Network Time Protocol (NTP) and SELinux
Newbie Guide - All about manage package using yum and rpm commands
Newbie Guide - All about Filesystem Partition, Management, HardLinks, Softlinks and Compress Data
Newbie Guide - All about manage users, groups and permissions
Newbie Guide - All about network clients such as web-browsers, emails & messaging applications, SSH & FTP clients and network diagnostic tools
Newbie Guide - All about locate and find command
Newbie Guide - How to configure BASH Shell
May - 2015
Newbie Guide - All about process management/scheduling, signals and job control
Newbie Guide - All about Network, DNS and Printer Configuration
Newbie Guide - VIM An Advance Text Editor
Newbie Guide - Text Processing Guide
Newbie Guide - Standard Input/Output & Pipes
Newbie Guide - BASH & Shell Scripting
Newbie Guide - Linux users, groups and Permissions
Newbie Guide - Basic Linux Commands & Filesystem Details
Newbie Guide - How to run commands & get help on Linux
Newbie Guide - How to use Linux
History behind Linux and OpenSource
Beautiful & simple service status page, An open source status page system, for everyone.
Setup Jekyll and Write first guest post