Output Buffering Output buffering is processing mechanism where the output being generated by a program is held in a place till its size reaches a limit or the generation is complete. Only after, will the output be send to its destination. In php for example, doing and echo generates some output. Now this output might… Read More »
This tutorials shows how to setup and configure Apache web server with Php using mod fastcgi as the handler, on Ubuntu or Debian based linux servers
Apache + Php When setting up an apache+php server to run your php applications, there are lots of configuration parameters to deal with. The most important is the php Server Api (sapi). It determines how exactly is apache going to run the php scripts. Along with the php sapi another important thing to select is… Read More »
Php set_time_limit Php has a function called set_time_limit which can be used to dynamically adjust the maximum execution time permitted to a script. It allows specifying the time in seconds and limits the script execution time to that many seconds. The set_time_limit function whenever called, effectively extends the script execution time by that many seconds…. Read More »
SSH If you are using an ssh client on windows to control a remote webserver and want to setup passwordless logins then you need to create ssh keys. The puttygen command from the putty suite can be used to generate keys in both putty and openssh formats. Download the puttygen program from the following url… Read More »
Kali linux Kali Linux comes with a hacked version of the gnome 3 desktop. It has been made to look like gnome 2 but lacks many features of the old version. If you want other desktops then can install kde, xfce or lxde from the repository. However if you want to get the good old… Read More »
Quanta Plus Quanta Plus is web development tool for the KDE desktop that resembles dreamweaver of windows. But it is a dead project now and is not being developed anymore for years. However it is still my favorite because it works very well. Remarkable features are : 1. Group files into projects. 2. Auto-suggestions for… Read More »
Fix the common Options not allowed here error of apache web server on linux
Terminal If you are too addicted to the terminal/console and want to use it for every possible thing, then know that it can play music as well. There are many utilities for playing music files like mp3 directly from the commandline. They can be used to browse the file system, select music files and make… Read More »
Wireshark Wireshark, the most powerful packet sniffer and protocol analyser can be used to sniff data out of the captured packets for various protocols. Network communication takes place in packets and any request like http get/post is broken down into multiple packets and then transmitted to the remote webserver. Wireshark has the ability to reconstruct… Read More »
Firefox by default has smooth scrolling enabled on Ubuntu. With smooth scrolling, if you turn the mouse wheel, the page scrolls by some percentage not in a single moment, but taking some time like an animation. It gives a similar effect as if the page is being scrolled by fingers on a touch device. Google… Read More »
How to optimise font rendering on Ubuntu/Debian based Linux systems for best appearance
Adsl Routers Adsl routers are very common now a days as the primary hardware device used to connect to broadband connections. The modems connect to the broadband service using the username/password. Then the pcs connect to this router to form a local area network. The pcs use the router as the primary gateway to connect… Read More »
This simple tutorial shows you how to use john the ripper to carry out dictionary based brute force attacks and crack passwords.
Burp Suite Burp Suite is a security analysis tool that can be used to simulate web requests to test a web application or system for vulnerabilities. It has many components like Burp Intruder, Scanner, Repeater etc. Burp Intruder can do various kinds of fuzzing attacks with provided payloads. It is used when you need to… Read More »
Brute force password cracking Hydra is a popular password cracking tool that can be used to brute force many services to find out the login password from a given wordlist. It is included in kali linux and is in the top 10 list. On ubuntu it can be installed from the synaptic package manager. For… Read More »
When you start Kali, the grub boot menu comes up which waits for around 5 seconds before booting. Now if there are other oses alongside kali then the grub menu is useful. However if kali is the only os on the system, or for example kali is running inside virtualbox then it is of little… Read More »
Kali linux uses the root user, since root privileges are needed to run various security tools like nmap and wireshark etc. However its uneasy to type the root/toor combination everytime Kali boots. So to make things simple just make the user root login automatically at system start. And here are the simple steps to do… Read More »
Apache and mysql are installed by default in Kali Linux. They can be accessed through the Kali Linux menu in Applications. To start apache web server click the menu entry at “Applications > Kali Linux > System Services > HTTP > apache2 start”. Similary to start mysql click MySQL > mysql start. However starting services… Read More »
Quick tutorial on how to install the angry ip scanner on kali linux. angry ip scanner is a fast ping and port scanner.