列出 getent passwd
# vi /etc/sssd/sssd.conf autofs_provider = ldap cache_credentials = True ldap_search_base = dc=liho,dc=tw krb5_realm = LIHO.TW krb5_server = kerberos.liho.tw id_provider = ldap auth_provider …
加入訊息到 dmesg
# echo “this is a test message” > /dev/kmsg
ssh-keygen -t ecdsa
$ ssh-keygen -t ecdsa -b 521
手動 rotate logs
# logrotate /etc/logrotate.d/your-logrotate-config