[Freeipa-users] Test connectivity before joining domain

Innes, Duncan Duncan.Innes at virginmoney.com
Mon Oct 27 12:13:46 UTC 2014

Have been using `ping` to test connectivity from our clients to the
various IPA servers around the WAN before running an ldapsearch to pull
some details about the client from the LDAP database.
Several new VLAN's have now come online that do not permit ping traffic
to be transmitted outside the VLAN, so clients on these LAN's think they
can't see any of my IPA servers and then fail the domain join during the
kickstart phase.
Wondering if there's a consensus on how to check connectivity to IPA
servers on the network?  Something that I can use during the kickstart
post-install phase.
Current effort is:
wget --timeout=1 --tries=1 --no-check-certificate
and then test $? for result.  But this only tests ports 80/443 - which
authentication clients wont necessarily have access on.  Can I reliably
test the other FreeIPA ports?  389, 636, 88, 464?  These are the ports
that clients have to be allowed access to the IPA servers.

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