[Freeipa-users] Problem with automount - "Additional pre-authentication required"

Thu Jun 27 12:47:55 UTC 2013

apparently your nsswitch.conf looks like

automount: files ldap

Fix it so that it looks like:

automount: files sss

and configure sssd to provide maps for automounter
Then you could try running

# automount -m

to see if all maps are visible.....

________________________________
From: freeipa-users-bounces at redhat.com [freeipa-users-bounces at redhat.com] on behalf of Andrew Wasielewski [andrew at wasielewski.co.uk]
Sent: Thursday, June 27, 2013 12:01 AM
To: freeipa-users at redhat.com
Subject: [Freeipa-users] Problem with automount - "Additional pre-authentication required"

I am pretty new to FreeIPA. I am setting up a server to manage a small home network.

I am unable to get automount to work on the client. When I start autofs, I see this in syslog:-

[root at localhost ~]# automount -f -d

Starting automounter version 5.0.5-31.fc14, master map auto.master

using kernel protocol version 5.01

lookup_nss_read_master: reading master files auto.master

parse_init: parse(sun): init gathered global options: (null)

lookup_read_master: lookup(file): read entry /misc

lookup_read_master: lookup(file): read entry /net

lookup_read_master: lookup(file): read entry +auto.master

lookup_nss_read_master: reading master files auto.master

parse_init: parse(sun): init gathered global options: (null)

lookup_nss_read_master: reading master ldap auto.master

parse_server_string: lookup(ldap): Attempting to parse LDAP information from string "auto.master".

parse_server_string: lookup(ldap): mapname auto.master

parse_ldap_config: lookup(ldap): ldap authentication configured with the following options:

parse_ldap_config: lookup(ldap): use_tls: 0, tls_required: 0, auth_required: 2, sasl_mech: GSSAPI

parse_ldap_config: lookup(ldap): user: (null), secret: unspecified, client principal: host/server.wasielewski.co.uk at WASIELEWSKI.CO.UK credential cache: (null)

parse_init: parse(sun): init gathered global options: (null)

find_server: trying server uri ldap://server.wasielewski.co.uk

do_bind: lookup(ldap): auth_required: 2, sasl_mech GSSAPI

sasl_do_kinit: initializing kerberos ticket: client principal host/server.wasielewski.co.uk at WASIELEWSKI.CO.UK

sasl_do_kinit: calling krb5_parse_name on client principal host/server.wasielewski.co.uk at WASIELEWSKI.CO.UK

sasl_do_kinit: Using tgs name krbtgt/WASIELEWSKI.CO.UK at WASIELEWSKI.CO.UK

sasl_do_kinit: krb5_get_init_creds_keytab failed with error -1765328203

do_bind: lookup(ldap): autofs_sasl_bind returned -1

lookup(ldap): couldn't connect to server ldap://server.wasielewski.co.uk

do_reconnect: lookup(ldap): failed to find available server

lookup(file): failed to read included master map auto.master

On the server I see the following in /var/log/krb5kdc.log (client IP addr redacted):-

Jun 26 22:43:29 server.wasielewski.co.uk krb5kdc[10514](info): AS_REQ (7 etypes {18 17 16 23 1 3 2}) xxx.xxx.xxx.xxx: NEEDED_PREAUTH: host/server.wasielewski.co.uk at WASIELEWSKI.CO.UK for krbtgt/WASIELEWSKI.CO.UK at WASIELEWSKI.CO.UK, Additional pre-authentication required

Jun 26 22:43:29 server.wasielewski.co.uk krb5kdc[10514](info): closing down fd 5

On the client the ticket cache is:-

[root at localhost ~]# klist

Ticket cache: FILE:/tmp/krb5cc_0

Default principal: admin at WASIELEWSKI.CO.UK

Valid starting Expires Service principal

06/26/13 20:48:45 06/27/13 20:48:41 krbtgt/WASIELEWSKI.CO.UK at WASIELEWSKI.CO.UK

but on the server it is:

[root at server log]# klist

Ticket cache: FILE:/tmp/krb5cc_0

Default principal: admin at WASIELEWSKI.CO.UK

Valid starting Expires Service principal

06/26/13 00:04:51 06/27/13 00:04:47 krbtgt/WASIELEWSKI.CO.UK at WASIELEWSKI.CO.UK

06/26/13 00:04:54 06/27/13 00:04:47 ldap/server.wasielewski.co.uk at WASIELEWSKI.CO.UK

Should I also have a ticket for LDAP on the client?

Server is running FreeIPA 2.2.2 on FC17. Client is on FC14. I had to download the freeipa-client package (and others) from Koji as they were no longer available for FC14 in the usual repos. I ran ipa-client-install, but in the end had to apply most of the config manually. However everything else (IPA domain user login, IPA web UI etc.) that I would expect runs OK on the client. It is only automount that is giving problems.

I am sure I have got something very simple wrong...hopefully one of the masters can put me right.

Regards,

Andrew

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