I had a similar issue in the past

SSSD had a higher init.d/chkconfig start number than network … so it was starting before the network  

Check the starting order of the init scripts to make sure:

lrwxrwxrwx 1 root root 14 Jan 15  2015 /etc/rc5.d/S26sssd -> ../init.d/sssd
lrwxrwxrwx 1 root root 17 Nov 17  2014 /etc/rc5.d/S10network -> ../init.d/network

On Jul 31, 2015, at 6:03 AM, Pavel Reichl <preichl@redhat.com> wrote:

On 07/03/2015 10:13 AM, Ondrej Valousek wrote:

Hi List,

 

Facing another issue on RHEL-6. After server reboot, the sssd is unable to go online. Messages like:

 

(Fri Jul  3 06:13:36 2015) [sssd[be[default]]] [be_run_online_cb] (0x0080): Going online. Running callbacks.

(Fri Jul  3 06:13:42 2015) [sssd[be[default]]] [fo_resolve_service_timeout] (0x0080): Service resolving timeout reached

(Fri Jul  3 06:13:42 2015) [sssd[be[default]]] [sdap_id_op_connect_done] (0x0020): Failed to connect, going offline (5 [Input/output error])

(Fri Jul  3 06:13:42 2015) [sssd[be[default]]] [be_run_offline_cb] (0x0080): Going offline. Running callbacks.

(Fri Jul  3 06:13:42 2015) [sssd[be[default]]] [ad_subdomains_get_conn_done] (0x0080): No AD server is available, cannot get the subdomain list while offline

(Fri Jul  3 06:13:42 2015) [sssd[be[default]]] [sdap_dyndns_get_addrs_done] (0x0080): No LDAP server is available, dynamic DNS update is skipped in offline mode.

(Fri Jul  3 06:13:42 2015) [sssd[be[default]]] [sdap_dyndns_update_addrs_done] (0x0040): Can't get addresses for DNS update

(Fri Jul  3 06:13:42 2015) [sssd[be[default]]] [ad_dyndns_sdap_update_done] (0x0040): Dynamic DNS update failed [1432158230]: Dynamic DNS update not possible while offline

(Fri Jul  3 06:13:42 2015) [sssd[be[default]]] [ad_dyndns_nsupdate_done] (0x0040): Updating DNS entry failed [1432158230]: Dynamic DNS update not possible while offline

(Fri Jul  3 06:13:42 2015) [sssd[be[default]]] [fo_resolve_service_timeout] (0x0080): Service resolving timeout reached

(Fri Jul  3 06:13:42 2015) [sssd[be[default]]] [be_ptask_enable] (0x0080): Task [Check if online (periodic)]: already enabled

(Fri Jul  3 06:13:42 2015) [sssd[be[default]]] [be_run_offline_cb] (0x0080): Going offline. Running callbacks.

(Fri Jul  3 06:14:52 2015) [sssd[be[default]]] [be_run_online_cb] (0x0080): Going online. Running callbacks.

(Fri Jul  3 06:14:58 2015) [sssd[be[default]]] [fo_resolve_service_timeout] (0x0080): Service resolving timeout reached

(Fri Jul  3 06:14:58 2015) [sssd[be[default]]] [be_run_offline_cb] (0x0080): Going offline. Running callbacks.

(Fri Jul  3 06:15:00 2015) [sssd[be[default]]] [sss_ldap_init_sys_connect_done] (0x0020): sdap_async_sys_connect request failed.

(Fri Jul  3 06:15:00 2015) [sssd[be[default]]] [sdap_sys_connect_done] (0x0020): sdap_async_connect_call request failed.

(Fri Jul  3 06:15:06 2015) [sssd[be[default]]] [sss_ldap_init_sys_connect_done] (0x0020): sdap_async_sys_connect request failed.

 

And strangely also:

 

(Fri Jul  3 06:19:37 2015) [sssd[be[default]]] [be_resolve_server_process] (0x0080): Couldn't resolve server (SRV lookup meta-server), resolver returned (1432158227)

(Fri Jul  3 06:19:37 2015) [sssd[be[default]]] [be_resolve_server_process] (0x0080): Couldn't resolve server (xxx.yyy.zzz), resolver returned (5)

(Fri Jul  3 06:19:37 2015) [sssd[be[default]]] [be_resolve_server_process] (0x0080): Couldn't resolve server (xxx2.yyy.zzz), resolver returned (5)

 

Looks like DNS issue but I am pretty sure DNS worked just fine. After sssd restart everything goes just fine.

sssd-1.11.7-4.el6

 

Thanks,

Ondrej

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Hello,

does this happen every time you reboot the server or was it one time event?
If you reboot the machine and network is not working SSSD will go offline, but it will periodically try to connect to the LDAP server and will go online when network/DNS starts working again.

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