id linda su - useradd linda usermod -aG sales linda sudo /etc/passwd vipw vigr groupmod /etc/default/useradd /etc/login.defs chage -E 2017-01-30 bob chage -l bob /etc/profile /etc/bashrc ~/.profile ~/.bashrd /etc/group LDAP / Kerberos / sssd authconfig authconfig-tui authconfig-gtk /etc/sssd/sssd.conf /etc/openldap/ldap.conf /etc/openldap/cacerts/<fichier.crt>
chown :account folder chgrp account folder groups lisa newgrp sales chmod chmod u+s chmod g+s chmod +t getfacl setfacl getfacl -R /directory > file.acls setfacl --restore=file.acls setfacl -m g:sales:rx /dir setfacl -m u:linda:rwx /dir setfacl -m d:g:sales:rx /dir setfacl -m d:o:- /dir umask ACL with user_xattr mount option needed (extX not XFS) chattr lsattr