man > uts_namespaces(7)

uts_namespaces(7)                 Miscellaneous Information Manual                 uts_namespaces(7)

NAME
       uts_namespaces - overview of Linux UTS namespaces

DESCRIPTION
       UTS  namespaces  provide isolation of two system identifiers: the hostname and the NIS domain
       name.  These identifiers are set using sethostname(2) and setdomainname(2), and  can  be  re‐
       trieved  using uname(2), gethostname(2), and getdomainname(2).  Changes made to these identi‐
       fiers are visible to all other processes in the same UTS namespace, but are  not  visible  to
       processes in other UTS namespaces.

       When a process creates a new UTS namespace using clone(2) or unshare(2) with the CLONE_NEWUTS
       flag, the hostname and domain name of the new UTS namespace are copied from the corresponding
       values in the caller's UTS namespace.

       Use of UTS namespaces requires a kernel that is configured with the CONFIG_UTS_NS option.

SEE ALSO
       nsenter(1),  unshare(1),  clone(2), getdomainname(2), gethostname(2), setns(2), uname(2), un‐
       share(2), namespaces(7)

Linux man-pages 6.7                          2023-10-31                            uts_namespaces(7)