Setting up Red Hat Enterprise Linux 5.7 with 802.1x Authentication and Proxy

Background

To set up Red Hat Enterprise Linux Server 5.7 in office network with 802.1x authentication and proxy setting.

Problems & Solution

How to set 802.1x authentication? The 802.1x tab is grey out!

In the System -> Preferences -> More Preferences -> Network Connections, under the Wired tab, add a new connection. You should be able to configure 802.1x tab.

Red Hat Enterprise Linux 5.7 Network Connections

802.1x authentication Tab

The server cannot connect to the network with 802.1x authentication

To connect to the network with 802.1x authentication enabled, click on the nm-applet icon in the notification bar, and select the network connection created.

nm-applet Icon

But I cannot find the “nm-applet” icon!

By default, the Network Manager service is not running. Start the Network Manager service and you should be able to see the nm-applet icon on the notification bar.

NetworkManager Service

How to set proxy?

You may append the proxy setting to the file /etc/environment. Example of proxy setting are:

export http_proxy='http://my.proxy/'
export https_proxy='https://my.proxy/'

“yum update” returns HTTP 400 Bad Request using proxy

It seems that it is a bug in the urlgrabber module. Perform yum update once without proxy to update the package on the server and will solve the problem.

How to lock screen to prevent others seeing my password used in 802.1x connection?

Just press Ctrl+Alt+L. Remember you cannot lock screen if you are using the root account.

Advertisements

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s