How to sniff HTTP traffic from the command line on Linux

Suppose you want to sniff live HTTP web traffic (i.e., HTTP requests and responses) on the wire for some reason. For example, you may be testing experimental features of a web server. Or you may be debugging a web application or a RESTful service. Or you may be trying to troubleshoot PAC (proxy auto config) […]
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How to live stream video from webcam on Linux

Have you ever wanted to live stream a video feed from your webcam for someone else? You could use any existing video chat software such as Skype, Google+ Hangouts. However, if you do not want to rely on any third-party streaming infrastructure, you can set up your own webcam streaming server in house. In this […]
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How to set up a Subversion (SVN) server on CentOS or Fedora

The open-source community has been using Subversion (or SVN) widely for many collaborative open-source development projects. SVN is supported by all major open-source project hosting sites such as Google Code, GitHub, SourceForge and Launchpad. You can of course set up your own Subversion server in house. SVN supports several protocols for network access: SVN, SVN+SSH, […]
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How to set up a transparent proxy on Linux

A transparent proxy sits between clients and the Internet, acting as a gateway for the clients. It’s called transparent because clients are not required to configure anything for the proxy. A transparent proxy is useful when it’s not possible or desirable to modify client configurations, ant yet it’s still necessary to intercept client’s requests. If […]
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How to install httptunnel on Linux

httptunnel is a GNU/GPL-licensed free software that allows one to create a bi-directional tunnel encapsulated by HTTP, between client and server. HTTP-encapsulated tunnels are useful when you want to use games, IM clients, or P2P sharing applications across restrictive firewalls or proxies which tend to block pretty much everything except well known traffic such as […]
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