
Upon configuring a new Ubuntu server, my objective is to optimize its cleanliness. With respect to the users listed below, I would appreciate guidance on whether it is advisable to delete any of them. Could you please indicate which users should not be deleted?
_apt backup bin daemon games gnats irc list lp mail man messagebus mysql news koowspin echatrandom nobody proxy root sync sys syslog systemd-network systemd-resolve systemd-timesync tcpdump uucp uuidd www-data
Thank you for your assistance.