On 04/13/2015 05:29 PM, Qing Chang wrote:
Thanks Lucas for the information.
I tried the selinux line, it did not seem to make a difference.
As I said in my original email, login to the IPA server itself does not exhibit the same behavior, although every system has the same SSSD configuration and SElinux enabled. I actually tried "setenforce 0" on a client without any effect either.
I checked all the reference you provided, my feelings is that the events add up still would not account for 5 seconds delay:-(
If anybody would like to have debug information, please let me know (the procedure to produce). Please also let me know if I should file a bug.
Please see SSSD troubleshooting page. [1] Rise debug_level, inspect the logs and see what operation is really taking the time.
I suspect this there some DNS release timeout that you are hitting but without logs it is not possible to say.
[1] https://fedorahosted.org/sssd/wiki/Troubleshooting
Many thanks, Qing
On Mon, Apr 13, 2015 at 4:22 PM, Lukas Slebodnik <lslebodn@redhat.com mailto:lslebodn@redhat.com> wrote:
On (13/04/15 15:28), Qing Chang wrote: >OS: CentoOS 7.1 >IPA: 4.1.0-18 >SSSD: 1.12.2-58 > >With IPA any clients running CentOS7.1 authentication for ssh and sudo >takes more than 5 seconds _after_ putting in password. If ssh to the IPA >server itself, it authenticates instantly. > >Google did not provide much relevant information. Note that this is not a >slow ssh session to get to authentication prompt, it always gets to the >prompt without delay. > >Also it is not related to NFS performance, it is equally slow if I login to >a NFS server (IPA client) locally or login to a server (also a IPA client) >that has autofs home. > >IPA server is a fresh installation with just a couple of users. I had an >installation previously that has more than a thousand user accounts on >CentOS 6. Users did not have the slowness problem as with this new >installation. > >Hope this list can provide some pointers. > You might hit bug[1]. If you do not use SELinux ser mapping[2] you can try to disable this feature. put "selinux_provider = none" into domain section of sssd.conf If it doesn't help you can tahe a look on sssd<->systemd conversation in mail thread[3] LS [1] https://fedorahosted.org/sssd/ticket/2624 [2] https://www.freeipa.org/page/SELinux_user_mapping [3] http://lists.freedesktop.org/archives/systemd-devel/2015-April/030496.html _______________________________________________ sssd-users mailing list sssd-users@lists.fedorahosted.org <mailto:sssd-users@lists.fedorahosted.org> https://lists.fedorahosted.org/mailman/listinfo/sssd-users
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