On Sun, Feb 09, 2020 at 11:06:46PM +0200, Alexander Bokovoy via FreeIPA-users 
wrote:
> On su, 09 helmi 2020, Winfried de Heiden via FreeIPA-users wrote:
> > Hi all,
> > For some reason, for a particular user, sss_ssh_authorizedkeys is extremely 
> > slow on the IPA-server:
> > time /usr/bin/sss_ssh_authorizedkeys <username>~real        0m9.520suser    
> > 0m0.022ssys     0m0.018s
> > It will return all the public keys, but is is slow, causing SSH-login 
> > delays using a ssh-keys.
> > On another CentOS Stream (8.1) IPA-client, using the same IPA-server:
> > time /usr/bin/sss_ssh_authorizedkeys <username>~real        0m0.020suser    
> > 0m0.005ssys     0m0.003s
> > Some difference...Adding "certificate_verification = no_ocsp" to sssd.conf 
> > on the IPA-server will bring back performance, but sound like a poor 
> > workaround.
> > Any idea what is happening here?
> 
> SSSD picks up certificates associated with the user entry for use as SSH
> keys as well. I guess verification of those certificates via OCSP takes
> time and that's why switching off the verification helps.

Hi,

if you are not interested in this feature at all you can disable it
completely in recent versions of SSSD by setting
'ssh_use_certificate_keys = False' in the [ssh] section of sssd.conf.
Please check if 'man sssd.conf' shows this option for your version of
SSSD.

HTH

bye,
Sumit

> 
> 
> -- 
> / Alexander Bokovoy
> Sr. Principal Software Engineer
> Security / Identity Management Engineering
> Red Hat Limited, Finland
> _______________________________________________
> FreeIPA-users mailing list -- freeipa-users@lists.fedorahosted.org
> To unsubscribe send an email to freeipa-users-le...@lists.fedorahosted.org
> Fedora Code of Conduct: 
> https://docs.fedoraproject.org/en-US/project/code-of-conduct/
> List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines
> List Archives: 
> https://lists.fedorahosted.org/archives/list/freeipa-users@lists.fedorahosted.org
_______________________________________________
FreeIPA-users mailing list -- freeipa-users@lists.fedorahosted.org
To unsubscribe send an email to freeipa-users-le...@lists.fedorahosted.org
Fedora Code of Conduct: 
https://docs.fedoraproject.org/en-US/project/code-of-conduct/
List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines
List Archives: 
https://lists.fedorahosted.org/archives/list/freeipa-users@lists.fedorahosted.org

Reply via email to