36 Chapter 3. Red Hat Network Alert Notification ToolFigure 3-2. HTTP Proxy ConfigurationIf your network connection requires you to use an HTTP Proxy Server to make HTTP connec-tions, on the Proxy Configuration screen, type your proxy server in the text field with the for-mat HOST:PORT. For example, to use the proxy server http://squid.mysite.org on port 3128, entersquid.mysite.org:3128 in the text field. Additionally, if your proxy server requires a user-name and password, select the Use Authentication option and enter your username and password inthe respective text fields.TipTo run the configuration wizard again, right-click on the applet, and select Configuration.Your preferences are written to the file .rhn-applet.conf in your home directory. TheRed Hat Network Alert Notification Tool also uses the system-wide configuration file/etc/sysconfig/rhn/rhn-applet. Do not modify the system-wide configuration file; it isautomatically generated by the application.You can also configure the Red Hat Network Alert Notification Tool not to list specific packages.To configure which packages to ignore, click on the applet, and select the Ignored Packages tab.3.2. Notification IconsThe applet displays a different icon, depending on the status of the updates. Refer to Table 3-1 fordetails.Icon DescriptionUpdates are availableSystem is up-to-dateChecking for updatesError has occurredTable 3-1. Red Hat Network Alert Notification Tool Icons