Mac OS X application to monitor specific applications internet bandwidth?

I would like to know if there is an application that looks at the bandwidth and tells you which applications are using how much of it

iftop

works with Solaris, Linux.

http://www.ex-parrot.com/pdw/iftop/

Port for OSX: http://iftop.darwinports.com/

Spector 360 for Education

Linksys WRT54GL

Linksys released the WRT54G router in 2002. It gained popularity for being a powerful, easily customizable router. Several third-party projects have released replacement firmware for the router which can enable it to perform functions not originally available. It important to buy a Linksys WRT54GL as it has enough memory to install the third-party firmware. Recent version of the WRT54G have too little memory so make sure you go for the WRT54GL.

OpenWRT and X-WRT

OpenWRT is a Open Source firmware project for the WRT54GL router. It’s a very small version of Linux which runs in place of the stock Linksys firmware. The firmware is available from openwrt.org. I prefer to use another project called X-wrt (x-wrt.org) which is based on OpenWRT but has added a nice graphical front end for configuring the router.

To install X-WRT (Which may void your warranty)

1) Download the openwrt-wrt54g-squashfs.bin firmware image to your PC

2) Open http://192.168.1.1/Upgrade.asp in your browser or manually go to

[http://192.168.1.1] -> Administration -> Firmware Upgrade

3) Upload openwrt-wrt54g-2.4-squashfs.bin

4) Wait 2 minutes. The router will reboot itself automatically after the upgrade is complete.

5) You should now be able to telnet to your router (IP address: 192.168.1.1) and start configuring.

Installing a Captive-Portal.

Nearly all commercial Hotspots are Captive Portals, this appears as an Open or Unencrypted Wifi signal but then redirects any traffic to a specific web page called a “Splash Page” where your often asked to login or purchase internet access. This is a clever way of doing things as most laptops will automatically connect to an open WiFi signal, then when a customer runs Internet Explorer (or which ever Web browser they use) they are sent to your splash page no matter what site they try to connect to. The most well known free captive portal software is Chillispot, which can be downloaded, and set-up, alternatively a number of commercial providers produce easy to use Captive Portal software, which can be installed on your WRT54GL.

Summary

In this article we have look at how powerful and versatile the Linksys WRT54GL router is. With a bit of work you can convert it into a powerful WiFi Hotspot router, which can be used for billing your customers for Internet access. Good luck with you new project!

Chris McGregor is a New-Zealand native who is owner of a successful data networking company in beautiful North Island. He is also a Director and partner of UseMyNet. UseMyNet sells WiFi Hotspot Billing software that turns a Linksys WRT54GL router into a self-contained WiFi Hotspot, which can be operated for a fraction of the cost of hosted hotspot solution and is ideal for Pubs, Hotels and B&Bs

How to Set Up a Wireless Router & Network : Cable vs. DSL Modems

Sky by Broadband – chews up bandwidth?

I recently registered for and installed Sky By Broadband – fine, no probs, downloaded the movies I was interested in, but noticed that even without the program running, the Kontiki delivery manager was using up all my broadband bandwidth from the moment I logged on, until shut-down. It was such heavy useage that it made playing games on-line impossible.

This is a dreadful abuse by Sky. The software works on Peer-to-Peer, so whenever the software is running there will be other users downloading movies from your machine.

This saves Sky money as they don’t have to pay so much for bandwidth, but means that unless you uninstall the software, your bandwidth will be being used up.

And if you’re not on an unlimited usage package there’s a serious chance that you’ll go over your allowance and incur extra charges from your ISP.

If you’re looking to disable the Kontiki software, try the link below.

Singapore Most Accurate Surveillance Software for Network

3 UK Mobile – WLAN question for Nokia N95?

I’ve just got on a contract with 3 (UK), and didn’t go for the extra £2.50 a month for Mobile Internet. But I found a WLAN (wireless LAN) feature on my new Nokia N95 that can connect to my wireless home broadband router to surf the internet on my phone. All I want to know is if 3 charges you for this service or is it free because it’s connected to my router at home??

WLAN is free. i am on vodafone and use my wlan to surf but can’t open some pages like vodafone’s own web.
Just make sure you are using your wlan access point while browsing .
I have done this :
Web (globe icon)>Options>Settings>General>Access Point>Always Ask

This way ur phone always asks you to choose your Access point before you start.

How to connect to the PSN using mobile broadband