Feature Request: Refresh on Network Manager

I have been long wanting a refresh button on the Network Manager.  Apparently, I am not the only one who has thought that:

Ubuntu Brainstorm: Idea #17725: “Scan wireless networks” option in NetworkManager

Gnome Bugzilla: Bug 498887 – Refresh wireless network list

Here is the big argument against:

Bryan Clark: Refresh in reactive displays

So, here is the situation — I am working at home connected to my home router.  I pick up my laptop and leave it on while I drive to work.  When I get to work, it still shows my home wireless network in the list.  Then, at lunch, I pick up my laptop and take it to a restaurant that supports WiFi.  Again, it is does not recognize the restaurant’s network.  From what I read, it could take up to 6 minutes to rescan and see the new networks in those situations.

The solution might be to speed up the scan frequency so I don’t have to wait so long upon arriving at a new location.  But, from what I read, that might have power management implications.  If you scan too frequently it will never go into power saving mode?  I don’t know, but for one thing, why can’t I control the scan frequency?

On the other hand, if I had an option to rescan, I could tell it when to scan without having it scan needlessly too frequently.  Why should it scan every 15 seconds when I am at a restaurant that doesn’t have WiFi?  When my battery was dying and only lasted 20 minutes, I wanted every ounce of power I could get!  I understand making things automatic for the user, but sometimes it is better to let the user decide.  The laptop will never know when I change locations like that unless maybe you add a GPS device to it.

Just my thoughts; can I have my refresh button?

Ethereal

I just found out that Ethereal has been renamed to Wireshark.

to install:
yum install wireshark

Resources

Strategic Developer: Wireshark

Determining Ports In Use

This page has moved.  Please update your links:
http://linuxsagas.digitaleagle.net/2007/02/09/determining-ports-in-use/

Ever wonder which ports are in use on your computer? Here is a command that will tell you:

netstat --all --programs --numeric-ports | less

Resources

“A Linux Firewall for Your Home”
Service detection on a Linux box with netstat

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