Check existing users : cut -d: -f1 /etc/passwd sudo adduser user_name add newly created to root group sudo usermod -a -G sudo user_name change current user to new user cd to home dir of newly created user run mkdir .ssh secure it by chmod 700 .ssh to create authorized_keys file run touch .ssh/authorized_keys Copy your public key in clipboard cat … Read more
We always use different version of libraries in our projects as per requirement, it means we need project environments supporting local installation of packages and avoid usage of globally installed packages. virtualenv i.e. Virtual Environment, is solutions to above problem as it maintain a separate copy of Python and libs utilized in your python project. … Read more
No need to tell you to use google captcha on all forms, but still people keep trying. You can always find a plugin to get the job done, but manually you can do this too. Generate a .htpasswd file using htpasswd generator. Do not place this file in the same location as your .htaccess … Read more
When you use “Gravity form date field” and want a user to select future dates or today’s date only, simply add one Html field and copy paste below code snippet to HTML field. This will be applied to all date fields in gravity form. <script > gform.addFilter( ‘gform_datepicker_options_pre_init’, function( optionsObj, formId, fieldId ) { // do stuff optionsObj.minDate = new … Read more
npm is most commonly used for managing Node.js modules, but it works for the front-end too. Bower is created solely for the front-end and is optimized with that in mind. The biggest difference is that npm does nested dependency tree (size heavy) while Bower requires a flat dependency tree (puts the burden of dependency resolution on … Read more
Let’s say you setup one server in one AWS region, moving that AWS EC2 instance to another region may result in a headache, who don’t know copying AMI instead of creating new instance and setup server, deploy code again. All I mean manually copying not required. Let’s change region of AWS EC2 – Step1: Create an AMI of … Read more
Composer is a cross-platform dependency manager for PHP libraries. Let’s install it on OS X and add an alias/shortcut/command so you can use it from anywhere. Downloading Composer will create a Phar (PHP Archive) file called “composer.phar” From your terminal, run the following command: curl -sS https://getcomposer.org/installer | php // S option to show any errors if … Read more
Whenever you start with new OS installation or with a new machine and leading to android app development, we need to setup PATH environment variables. So maybe you have ‘android SDK’ downloaded or ‘android studio’ running. To add environment variables permanently, need to add those in .bash_profile file, which doesn’t exist, we need to make one by typing … Read more
People who are used to integarte GCM in ionic apps, its time to migrate to FCM( Firebase Cloud Messaging ) App/Device/Client side steps : Use plugin https://github.com/fechanique/cordova-plugin-fcm STEP 1 cordova plugin add cordova-plugin-fcm STEP 2 if(window.cordova) { FCMPlugin.onNotification( function(data){ if(data.wasTapped){ // $state.go(‘message’, {id:data.pageId}); // $location.path(‘app/userList’); alert(‘onNotification tapped true’); } else { alert(“xxxxxxxxxxxx”+data); } }, function(msg){ // … Read more
While socket.io implementation,( server clusters case ), simple socket server will not work and you need to use socket with redis server. So how to install redis on centos os, follow steps below. *Sudo user required. yum install redis // install redis server systemctl start redis.service // start redis server systemctl status redis.service // check server status redis-cli … Read more