Yum performs automatic dependency resolution on packages you are updating, installing, or removing, and thus is able to automatically determine, fetch, and install all available dependent packages.The following sections assume your system was registered with Red Hat Subscription Management during installation as described in the Red Hat Enterprise Linux 6 Installation Guide.
This means that you can trust that the packages you download and install on your system are from a trusted source, such as Red Hat, and were not modified during transfer.
DNS is a type of protocol used to set standards for exchanging information on the Internet and private networks.
DNS is a kind of navigation, like GPS for computers. The last word in a domain name is called the top level domain.
See Section 8.4, “Configuring Yum and Yum Repositories” for details on enabling signature-checking with Yum, or Section B.3, “Checking a Package's Signature” for information on working with and verifying GPG-signed Loaded plugins: product-id, refresh-packagekit, subscription-manager Updating Red Hat repositories.
INFO:rhsm-app.repolib:repos updated: 0 Package Kit.x86_64 0.5.8-2.el6 rhel Package Kit-glib.x86_64 0.5.8-2.el6 rhel Package Kit-yum.x86_64 0.5.8-2.el6 rhel Package Kit-yum-plugin.x86_64 0.5.8-2.el6 rhel glibc.x86_64 2.11.90-20.el6 rhel glibc-common.x86_64 2.10.90-22 rhel kernel.x86_64 2.6.31-14.el6 rhel kernel-firmware.noarch 2.6.31-14.el6 rhel rpm.x86_64 4.7.1-5.el6 rhel rpm-libs.x86_64 4.7.1-5.el6 rhel rpm-python.x86_64 4.7.1-5.el6 rhel udev.x86_64 147-2.15.el6 rhel yum.noarch 3.2.24-4.el6 rhel You can choose to update a single package, multiple packages, or all packages at once.
DNS is easy to remember instead of IP addresses for users.