HOSTNAME(5) hostname HOSTNAME(5) NAME hostname - SYNOPSIS /etc/hostname /etc/hostname systemd sethostname(2) "#" 64ASCII"-"() "-""-" DNS hostnamectl(1) systemd-firstboot(1) () /etc/hostname Debian GNU/Linux systemd(1), sethostname(2), hostname(1), hostname(7), machine-id(5), machine-info(5), hostnamectl(1), systemd-hostnamed.service(8), systemd- firstboot(1) man http://www.jinbuguo.com man https://github.com/man-pages-zh/manpages- zh systemd 231 HOSTNAME(5)