[Freeipa-users] IPA Error on Server with Public IP?? "cannot use IP network address"

[Stephen Ingram]

On Tue, Feb 7, 2012 at 8:39 PM, Craig T <freeipa at noboost.org> wrote:
> Hi,
>
> Is IPA somehow restricted from running on machines with a public IP address?
>
> I'm attempting to install IPA for practise on my Linux VPS (Centos 6.2 x86_64);
...snip...
>
> Error:
> ----------------------------------------------------------------------------
> Server host name [mx1.example.com]:
>
> root        : DEBUG    will use host_name: mx1.example.com
>
> The domain name has been calculated based on the host name.
>
> Please confirm the domain name [example.com]:
>
> root        : DEBUG    read domain_name: example.com
>
> root        : DEBUG    args=/sbin/ip -family inet -oneline address show
> root        : DEBUG    stdout=1: lo    inet 127.0.0.1/8 scope host lo
> 3: venet0    inet 127.0.0.1/32 scope host venet0
> 3: venet0    inet 100.111.111.1/32 brd 100.111.111.1 scope global venet0:0
> 3: venet0    inet 100.111.111.2/32 brd 100.111.111.2 scope global venet0:1
>
> root        : DEBUG    stderr=
> Unexpected error - see ipaserver-install.log for details:
> cannot use IP network address
> root        : DEBUG    cannot use IP network address
> File "/usr/sbin/ipa-server-install", line 1151, in <module>
> sys.exit(main())
>
> File "/usr/sbin/ipa-server-install", line 770, in main
> ip = CheckedIPAddress(hostaddr, match_local=True)
>
> File "/usr/lib/python2.6/site-packages/ipapython/ipautil.py", line 145, in __init__
> raise ValueError("cannot use IP network address")
> ----------------------------------------------------------------------------

I can see you are trying to install FreeIPA on an OpenVZ VM. The
problem is the venet interfaces you are using which don't use a routed
network configuration. I have successfully installed it, but using
veth interfaces instead. FreeIPA will then be able to correctly
determine the IP address and install without issue.

Steve