SSSD：Authentication service cannot retrieve authentication info

Issue

• 用户身份验证失败并显示错误。

May 15 17:12:11 server1 sudo[27090]: pam_sss(sudo:account): Request to sssd failed. Connection refused
May 15 17:12:11 server1 sudo[27090]: tuser : PAM account management error: Authentication service cannot retrieve authentication info ; TTY=pts/1 ; PWD=/home/tuser ; USER=root ; COMMAND=/sbin/service sssd status

(2023-05-15 17:11:19): [be[example.test]] [orderly_shutdown] (0x3f7c0): SIGTERM: killing children
(2023-05-15 17:11:19): [be[example.test]] [orderly_shutdown] (0x3f7c0): Shutting down (status = 0)(2023-05-15 17:56:29): [be[example.test]] [server_setup] (0x3f7c0): Starting with debug level = 0x0070
(2023-05-15 17:56:29): [be[example.test]] [sss_krb5_touch_config] (0x0020): Unable to change mtime of "/etc/krb5.conf" [13]: Permission denied
********************** PREVIOUS MESSAGE WAS TRIGGERED BY THE FOLLOWING BACKTRACE:
   *  [be[example.test]] [become_user] (0x0200): Trying to become user [0][0].
   *  [be[example.test]] [become_user] (0x0200): Already user [0].
   *  [be[example.test]] [sss_set_sssd_user_eid] (0x0080): Failed to set egid to 993: Operation not permitted
   *  [be[example.test]] [ldb] (0x0400): server_sort:Unable to register control with rootdse!