Author Archives: Silver Moon

About Silver Moon

A Tech Enthusiast, Blogger, Linux Fan and a Software Developer. Writes about Computer hardware, Linux and Open Source software and coding in Python, Php and Javascript. He can be reached at [email protected].

Java socket programming Tutorial – How to code Client and Server

By Silver Moon | August 5, 2020

Socket programming in Java This is a quick guide/tutorial to learning socket programming in Java. The Socket class is documented at http://docs.oracle.com/javase/1.4.2/docs/api/java/net/Socket.html To summarise the basics, sockets are the fundamental “things” behind any kind of network communications done by your computer. For example when you type www.google.com in your web browser, it opens a socket… Read More »

Python socket programming Tutorial – How to Code Client and Server

By Silver Moon | July 28, 2020

Tutorial on how to code simple network servers and clients using low level Socket api in python.

Best php ide and web development tools on ubuntu

By Silver Moon | May 10, 2020

There are a lot of IDEs for ubuntu for doing php related web development. Lets see a few. Aptana Studio Supports PHP, Ruby, Python and more. Autosuggest dropdowns available, Integrated preview available. Project website http://www.aptana.com/ Install on ubuntu Download from http://www.aptana.com/ Quanta Quanta is the Dreamweaver of Linux. However it is not developed anymore. As… Read More »

PHP Socket programming Tutorial – How to code Client and Server

By Silver Moon | July 29, 2020

Php and tcp/ip sockets This is a quick guide to learning socket programming in php. Socket programming php is very similar to C. Most functions are similar in names, parameters and output. However unlike C, socket programs written in php would run the same way on any os that has php installed. So the code… Read More »

Implementing callbacks in php with anonymous functions

By Silver Moon | July 19, 2012

What are callbacks Callback is a piece of code that is passed to some other functions as a parameter, such that it can be executed before or after a certain event or change of state. A common example of callbacks can be seen in javascript when using the jquery ajax function. $.ajax({ url: 'ajax/test.html', success:… Read More »

3 ways to serialize variables in php

By Silver Moon | July 14, 2012

The idea behind serializing a variable is to create a storable string format of it, such that the same variable can be recreated later when required using the string. 1. serialize and unserialize These are the traditional functions to serialize and unserialize data in PHP. $a = array('a' => 'Apple' ,'b' => 'banana' , 'c'… Read More »

PHP : Add Login with Github to your website

By Silver Moon | May 9, 2020

Github Login Github has become a very popular social login on websites related to programming and development. Github itself is a big storehouse of opensource projects and community of developers. Github oAuth documentation can be found at http://developer.github.com/v3/oauth/. Register website with Github oAuth The first thing to do would be to register your website with… Read More »

Add Login with Yahoo to your php website

By Silver Moon | July 12, 2012

Yahoo OpenId In the previous article, we learned how to integrate . Its good to know that Yahoo is also an openid provider and “Login with Yahoo” can be added to a website in a very similar manner. Yahoo’s openid discovery url is http://me.yahoo.com/. The rest of the code is very simple. Code <?php /*… Read More »

Php code for login with google using openid

By Silver Moon | July 10, 2012

OpenId A very popular login method now a days is to allow users to login through their google, openid etc accounts. One popular protocol being used is the OpenId. According to wikipedia : OpenID is an open standard that describes how users can be authenticated in a decentralized manner, eliminating the need for services to… Read More »

How to Setup a jailed shell with jailkit on Ubuntu / Linux

By Silver Moon | May 1, 2023

How to setup a jailed shell on Ubuntu using jailkit.

How to Install Jailkit on Ubuntu/Debian

By Silver Moon | May 1, 2023

Quick guide on how to compile and install jailkit on Ubuntu/Debian based linux systems.

Use clientside ssl certificate with curl and php

By Silver Moon | June 13, 2012

Clientside certificates are often used in soap webservices. For example the wsdl file link might require a clientside certificate. The server throws an error like this : HTTP Error 403.7 – Forbidden: SSL client certificate is required. Curl Command To use clientside certificate with curl , test the following command curl –cert certificate_file.pem https://www.example.com/some_protected_page or… Read More »

Fix Bsnl broadband frequent disconnection problem

By Silver Moon | November 7, 2012

Bsnl has plenty of high speed (4 MPBS) plans as mentioned here : http://bsnl.co.in/opencms/bsnl/BSNL/services/broadband/new_BB_postpaid.html . These are on the NIB – II Network. Ip addresses begin with 117. One known problem with the high speed internet is that it gets disconnected frequently. So like Yahoo Messenger or Pidgin or Skype could go offline every 5… Read More »

Login into phpmyadmin without username and password

By Silver Moon | June 25, 2013

Phpmyadmin auto login Phpmyadmin is a popular web based mysql database administration tool/frontend. It is used widely by php/mysql developers to manage database locally and remotely. When logging in to phpmyadmin, the user has to provide the mysql login credentials. However when working or developing on localhost , its better to make phpmyadmin login automatically… Read More »

10+ tips to localise your php application

By Silver Moon | April 14, 2012

Localisation Localisation involves changing various parts of application output like display of dates , time , numbers , language etc according to the standards of the geographical region of a user. Localisation is an important feature of applications that targets users across the globe and not just one region. So here are a set of… Read More »

40+ Useful Php tips for beginners – Part 3

By Silver Moon | April 7, 2012

Part 2 26. Avoid direct SQL query , abstract it $query = "INSERT INTO users(name , email , address , phone) VALUES('$name' , '$email' , '$address' , '$phone')"; $db->query($query); //call to mysqli_query() The above is the simplest way way of writing sql queries and interacting with databases for operations like INSERT, UPDATE, DELETE etc. But… Read More »

40+ Useful Php tips for beginners – Part 2

By Silver Moon | April 7, 2012

Part 1 11. Do not gzip output in your application , make apache do that Thinking of using ob_gzhandler ? No dont do that. It doesnt make sense. Php is supposed to write your application. Dont worry about how to optimise data transfer between server and browser inside Php. Use apache mod_gzip/mod_deflate to compress content… Read More »

15+ tips to secure your php application

By Silver Moon | May 27, 2013

Php is used to write web applications which are online and publicly accessible. Therefore security is a fundamental necessity of these applications to keep the data safe and free from unauthorized access. Below are a bunch of simple tips/hacks/ideas to design your php applications to have better security. The Code 1. Avoid short tags If… Read More »

40+ Useful Php tips for beginners – Part 1

By Silver Moon | March 29, 2012

In this series we are going to look into some useful tips and techniques that can be used to improve and optimise your php code. Note that these php tips are meant for beginners and not those who are already using mvc frameworks etc. The Techniques 1. Do not use relative paths , instead define… Read More »

Execute shell commands in PHP

By Silver Moon | March 27, 2012

Like any other language php applications often need to execute system commands like they are run from the terminal/console/commandline. Php has multiple functions to do this task. Lets take a look at each of these 1. system “system() is just like the C version of the function in that it executes the given command and… Read More »

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