单项选择题
A.restorecon -R .sshB.restorecon -V .sshC.restorecondD.resotrecon -n .ssh/authorized_keys
A./etc/hostnameB./etc/hostsC./etc/resolv.confD./etc/host.conf
A./etc/rsyslog.confB./etc/sysctl.confC.logrotate.confD./var/log/kern