plucky (7) uts_namespaces.7.gz

Provided by: manpages_6.9.1-1_all bug

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  retrieved  using  uname(2),
       gethostname(2),  and  getdomainname(2).   Changes  made  to  these  identifiers  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),  unshare(2),
       namespaces(7)