On Thu, 2011-10-06 at 22:59 -0400, Rob Crittenden wrote: > When installing with DNS we skip a few hostname checks on the assumption > that the DNS we are installing will cover things. We still need to > verify /etc/hosts and we do this with gethostbyname_ex() which returns > the primary name and all other names of the host. If the primary name > doesn't match (e.g. the shortname is defined first in /etc/hosts) or it > isn't resolvable at all then we error out. > > This also prevents a chicken-and-egg error as several services need to > start before DNS is available so the hostname must be defined. > > rob
I see several problems with the patch. At first, it needs a rebase, I reworked the exceptions raised in verify_fqdn in #1899. Then, this patch would break several things: 1) Now, when we install a server with --setup-dns and the host is not resolvable, we add a record to /etc/hosts ourselves, so that the user is not obliged to hack /etc/hosts: # ipa-server-install --setup-dns ... Server host name [vm-050.idm.lab.bos.redhat.com]: Warning: skipping DNS resolution of host vm-050.idm.lab.bos.redhat.com The domain name has been calculated based on the host name. Please confirm the domain name [idm.lab.bos.redhat.com]: Unable to resolve IP address for host name Please provide the IP address to be used for this host name: 10.16.78.50 Adding [10.16.78.50 vm-050.idm.lab.bos.redhat.com] to your /etc/hosts file <<<<<< The IPA Master Server will be configured with Hostname: vm-050.idm.lab.bos.redhat.com IP address: 10.16.78.50 Domain name: idm.lab.bos.redhat.com 2) This will break ipa-replica-prepare. We cannot assume that only local host names are passed to to verify_fqdn since it is also used to for new replica hostname check in ipa-replica-prepare: # ipa-replica-prepare vm-103.idm.lab.bos.redhat.com Directory Manager (existing master) password: The host name vm-103.idm.lab.bos.redhat.com is not resolvable. It must appear in at least /etc/hosts. Add the --ip-address argument to create a DNS entry. We must be very cautious in this function, there was already a BZ from RHEV-M guys which could be now broken: https://bugzilla.redhat.com/show_bug.cgi?id=729357 Martin _______________________________________________ Freeipa-devel mailing list Freeipa-devel@redhat.com https://www.redhat.com/mailman/listinfo/freeipa-devel
