FreeIPA-Client sssd.service 경고/실패

Question

이 경고는 우분투에 ipa-client를 설치하는 중입니다. ipa-client-install

Joining realm failed: libcurl failed to execute the HTTP POST transaction, explaining: SSL certificate problem: certificate is not yet valid 

Installation failed. Rolling back changes. 
IPA client is not configured on this system. 

수있는 사람의 도움 -. IPA를 구성하는 동안

Warning: found usr.sbin.sssd in /etc/apparmor.d/force-complain, forcing complain mode 
Warning failed to create cache: usr.sbin.sssd 
Job for sssd.service failed because the control process exited with error code. See "systemctl status sssd.service" and "journalctl -xe" for details. 
sssd.service couldn't start. 

설치 후, 나는 서비스를 시작할 수 없습니다하지 enter code here

â— sssd.service - System Security Services Daemon 
    Loaded: loaded (/lib/systemd/system/sssd.service; enabled; vendor preset: enabled) 
    Active: failed (Result: exit-code) since Sun 2017-10-08 23:25:12 ; 36s ago 
Main PID: 3500 (code=exited, status=4) 

: Starting System Security Services Daemon... 
: Configuration file: /etc/sssd/sssd.conf does not exist. 
: sssd.service: Main process exited, code=exited, status=4/NOPERMISSION 
: Failed to start System Security Services Daemon. 
: sssd.service: Unit entered failed state. 
: sssd.service: Failed with result 'exit-code'. 

(아래 참고) 그리고 수 이걸로 나?

Answer 1

IPA 서버에 가입하는 동안 왜 솔루션을 찾지 못했습니다. 실제로 이는 서버와 클라이언트간에 인 날짜 및 시간이 원인입니다.