60 Chapter 4. Red Hat Network WebsiteIf you are looking for a specific package or a subset of packages, you can use the package filteron the top of the list. Entering a substring to search for will search all the packages in the list forthe substring at the beginning, in the middle, or at the end of the package name. For example,typing ks in the filter might return all the ksconfig, krb5-workstation, and links. The filteris case-insensitive.• Subscribed Systems — List of entitled systems subscribed to the channel. The list displays systemnames, base channels, and their levels of entitlement. Clicking on a system name takes you to itsSystem Details page. Refer to Section 4.4.2.6 for more information. If it is a child channel, you willalso have the option within this tab of unsubscribing systems from the channel. Use the checkboxesto select the systems, then click the Unsubscribe button on the bottom right-hand corner.• Target Systems — List of entitled systems that are eligible to be subscribed to the channel. This tabappears only for child channels. Use the checkboxes to select the systems, then click the Subscribebutton on the bottom right-hand corner. This can also be accomplished through the Channels tabof the System Details page. Refer to Section 4.4.2.6 for more information.• License — Text of the channel’s End User License Agreement. This tab is associated only withchannels of third-party providers. It appears when you attempt a subscription to such a channelthrough the Target Systems tab. To complete the subscription, read the agreement, click the Acceptbutton, and then click the Confirm button. To decline the subscription, click the Cancel button.Only customers with custom base channels may change their systems’ base channel assignment. Theymay do this through the website in two ways:• The customer has its own base channel and it is assigning the system to that new base channel.• The customer has its own base channel and, having assigned a system to this base channel, itsubsequently reverts the system to its original distribution-based base channel.4.6.2. Channel EntitlementsThe Channel Entitlements page displays the list of channels for which you have paid. Click thenumber of systems subscribed to see a list of systems tied to the corresponding channel.4.6.3. Instant ISOsThe Instant ISOs page enables you to download binary files for use in making installation disks. Thisfeature is available only to RHN Basic and RHN Enterprise subscribers.To download an ISO image, click on the name of the corresponding Binary Disc image. For instruc-tions on burning the ISO image to a CD-R or CD-RW, refer to the Red Hat Linux Getting StartedGuide available at http://www.redhat.com/docs/.4.6.4. Advanced SearchThe RPM Search page allows you to search through packages using various criteria. You may searchby name or name and summary, within relevant or all channels, or within specific architectures. Typeyour keyword, select the criterion to search by, and click the Search button. The results appear at thebottom of the page.