retrieved using uname (2), gethostname (2), and getdomainname (2). Changes made to these identifiers ... unshare (1), clone (2), getdomainname (2), gethostname (2), setns (2), unam…only (function removed in POSIX.1-2008)] gethostent() gethostid() gethostname() getline() [Added in POSIX.1-2008] getlogin() getlogin