Exactly, RedHat service (not free) uses the redhat update network and tools like "up2date" to deliver updated RPM packages to their customer. They do not distribute yum by default and they do not have a yum repository configuration that works. Under the covers both RHEL and CentOS use RPMs so "rpm -Uvh this.rpm that.rpm" works for both. Because of this "yum" can be installed and a local yum repository can be used for local packages. RPM will do the right thing as long as the local packages are 'well' made. >From the support point of view expect redhat updates to be delivered to RH customers a min. to a week sooner than the CentOS community sees them. Start using language like "package update tool" where you would commonly use "yum". Scan the online documentation for redhat network, up2date, rhn etc.... In with the exception of "rhn" .vs. "yum" and copyright images there is no difference beyond possible random differences (minor) in the hosts that RPMs are built on. Also "/etc/redhat-release" will (OK should) differ. On Wed, Jul 2, 2008 at 9:09 AM, Johnny Hughes <johnny at centos.org> wrote: > drew einhorn wrote: >> >> Hi, we have a new customer to support. They have RHEL5 not CentOS5. >> >> Is there a summary of the differences between RHEL and CentOS? >> >> We have come across differences in how yum works. There is >> magic involving the rhnplugin that connects us to invisible >> repositories not mentioned in the yum config files, interacts with >> the web interface via rhn.redhat.com, ... >> >> We wonder if there are other differences that we have not yet stumbled >> upon, that might create issues in the future. > > Your client can call red hat support and there is a working yum-security > plugin. > > They also have access to RHN to manage assets. > > That is about it for differences. > > You need to think more about things like compiling custom kernels or 3rd > party repos, since you have upstream paid support now. > > > > > _______________________________________________ > CentOS mailing list > CentOS at centos.org > http://lists.centos.org/mailman/listinfo/centos > > -- NiftyCluster T o m M i t c h e l l