ubase

suckless linux base utils
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unshare.1 (1547B)


      1 .Dd February 2, 2015
      2 .Dt UNSHARE 1
      3 .Os ubase
      4 .Sh NAME
      5 .Nm unshare
      6 .Nd run program with some namespaces unshared from parent
      7 .Sh SYNOPSIS
      8 .Nm
      9 .Op Fl muinpU
     10 .Ar cmd
     11 .Op Ar args...
     12 .Sh DESCRIPTION
     13 .Nm
     14 unshares the indicated namespaces from the parent process and then executes
     15 the specified program. The namespaces to be unshared are indicated via
     16 options.
     17 .Sh OPTIONS
     18 .Bl -tag -width Ds
     19 .It Fl i
     20 Unshare the System V IPC namespace, so that the calling process has a
     21 private copy of the System V IPC namespace which is not shared with
     22 any other process. This flag has the same effect as the
     23 .Xr clone 2
     24 .Dv CLONE_NEWIPC
     25 flag.
     26 .It Fl m
     27 Unshare the mount namespace, so that the calling process has a private
     28 copy of its namespace which is not shared with any other process.
     29 This flag has the same effect as the
     30 .Xr clone 2
     31 .Dv CLONE_NEWNS
     32 flag.
     33 .It Fl n
     34 Unshare the network namespace, so that the calling process is moved
     35 into a new network namespace which is not shared with any previously
     36 existing process. This flag has the same effect as the
     37 .Xr clone 2
     38 .Dv CLONE_NEWNET
     39 flag.
     40 .It Fl u
     41 Unshare the UTS IPC namespace, so that the calling process has a
     42 private copy of the UTS namespace which is not shared with any other
     43 process. This flag has the same effect as the
     44 .Xr clone 2
     45 .Dv CLONE_NEWUTS
     46 flag.
     47 .It Fl p
     48 Create the process in a new PID namespace. This flag has the same
     49 effect as the
     50 .Xr clone 2
     51 .Dv CLONE_NEWPID
     52 flag.
     53 .It Fl U
     54 The process will have a distinct set of UIDs, GIDs and capabilities.
     55 .El
     56 .Sh SEE ALSO
     57 .Xr clone 2 ,
     58 .Xr unshare 2