Edit File: nsswitch.conf
# # /etc/nsswitch.conf # # Name Service Switch config file. This file should be # sorted with the most-used services at the beginning. # # Valid databases are: aliases, ethers, group, gshadow, hosts, # initgroups, netgroup, networks, passwd, protocols, publickey, # rpc, services, and shadow. # # Valid service provider entries include (in alphabetical order): # # compat Use /etc files plus *_compat pseudo-db # db Use the pre-processed /var/db files # dns Use DNS (Domain Name Service) # files Use the local files in /etc # hesiod Use Hesiod (DNS) for user lookups # nis Use NIS (NIS version 2), also called YP # nisplus Use NIS+ (NIS version 3) # # See `info libc 'NSS Basics'` for more information. # # Commonly used alternative service providers (may need installation): # # ldap Use LDAP directory server # myhostname Use systemd host names # mymachines Use systemd machine names # mdns*, mdns*_minimal Use Avahi mDNS/DNS-SD # resolve Use systemd resolved resolver # sss Use System Security Services Daemon (sssd) # systemd Use systemd for dynamic user option # winbind Use Samba winbind support # wins Use Samba wins support # wrapper Use wrapper module for testing # # Notes: # # # WARNING: Running nscd with a secondary caching service like sssd may # lead to unexpected behaviour, especially with how long # entries are cached. # # Installation instructions: # # To use 'db', install the appropriate package(s) (provide 'makedb' and # libnss_db.so.*), and place the 'db' in front of 'files' for entries # you want to be looked up first in the databases, like this: # # passwd: db files # shadow: db files # group: db files # In order of likelihood of use to accelerate lookup. passwd: files sss systemd shadow: files sss group: files sss systemd hosts: files dns myhostname services: files sss netgroup: sss automount: files sss aliases: files ethers: files gshadow: files # Allow initgroups to default to the setting for group. # initgroups: files networks: files dns protocols: files publickey: files rpc: files