Category Archives: General

Tcpdump tutorial – Sniffing and analysing packets from the commandline

By | November 14, 2012

Tcpdump Tcpdump is a commandline network analyzer tool or more technically a packet sniffer. It can be thought of as the commandline version of wireshark (only to a certain extent, since wireshark is much more powerful and capable). As a commandline tool tcpdump is quite powerful for network analysis as filter expressions can be passed… Read More »

Udp telnet with netcat

By | October 26, 2012

The standard telnet utilities that ship with linux or windows allow to telnet to services running on TCP ports. They do not support udp ports. However the utility netcat can be used for working with udp ports in a very similar manner to default telnet utility. The telnet utility works like this $ telnet localhost… Read More »

Increase adsense earnings by blocking low paying categories

By | September 25, 2012

One common adsense optimisation technique is to block low paying ads. The adsense interface allows users to block whole categories of ads like travel&tourism, real estate, health etc. Although the google adsense does try its best to serve the most relevant ads for a website based on its topic, keyword and content but sometimes when… Read More »

Check port forwarding with netcat

By | May 9, 2013

Port forwarding is a configuration in the router of a LAN such that any connections to a specific port number on the public/wan ip of the router may be forwarded to a specific machine/ip inside the LAN. Most routers allow configuration options to set port forwarding. After setting up port forwarding its necessary to check… Read More »

Fix Bsnl broadband frequent disconnection problem

By | 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 | 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 »

Compile wxwebconnect on Ubuntu 11.04 64 bit

By | February 2, 2012

wxwebconnect is a control for wxwidgets that allows to embed a gecko browser in a wxwidgets application. So lets try to install it on Ubuntu 11.04 wxWidgets can be installed from synaptic. Look for packages called libwxgtk2.8-* 1. Download wxwebconnect source from http://www.kirix.com/labs/wxwebconnect/downloads.html Extract them in home directory. Inside the webconnect directory you would see… Read More »