munge(1) - f38

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2MUNGE(1)                  MUNGE Uid 'N' Gid Emporium                  MUNGE(1)
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NAME

7       munge - MUNGE credential encoder
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SYNOPSIS

11       munge [OPTION]...
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DESCRIPTION

15       The  munge  program  creates an MUNGE credential containing the UID and
16       GID of the calling process.  Additional payload data  can  be  encapsu‐
17       lated  in  as  well.   The returned credential can be passed to another
18       process which can validate its contents (e.g.,  via  the  unmunge  pro‐
19       gram).   This allows an unrelated and potentially remote process to as‐
20       certain the identity of the calling process.
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22       By default, payload input is read from  stdin  and  the  credential  is
23       written to stdout.
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OPTIONS

27       -h, --help
28              Display a summary of the command-line options.
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30       -L, --license
31              Display license information.
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33       -V, --version
34              Display version information.
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36       -n, --no-input
37              Discard all input for the payload.
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39       -s, --string string
40              Input payload from the specified string.
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42       -i, --input path
43              Input payload from the specified file.
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45       -o, --output path
46              Output the credential to the specified file.
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48       -c, --cipher string
49              Specify the cipher type, either by name or number.
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51       -C, --list-ciphers
52              Display a list of supported cipher types.
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54       -m, --mac string
55              Specify the MAC type, either by name or number.
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57       -M, --list-macs
58              Display a list of supported MAC types.
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60       -z, --zip string
61              Specify the compression type, either by name or number.
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63       -Z, --list-zips
64              Display a list of supported compression types.
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66       -u, --restrict-uid uid
67              Specify  the  user name or UID allowed to decode the credential.
68              This will be matched  against  the  effective  user  ID  of  the
69              process requesting the credential decode.
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71       -U, --uid uid
72              Specify  the user name or UID under which to request the creden‐
73              tial.  This requires root privileges or the CAP_SETUID  capabil‐
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76       -g, --restrict-gid gid
77              Specify  the group name or GID allowed to decode the credential.
78              This will be matched against  the  effective  group  ID  of  the
79              process  requesting  the credential decode, as well as each sup‐
80              plementary group of which the effective user ID of that  process
81              is a member.
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83       -G, --gid gid
84              Specify the group name or GID under which to request the creden‐
85              tial.  This requires root privileges or the CAP_SETGID  capabil‐
86              ity.
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88       -t, --ttl seconds
89              Specify  the  time-to-live (in seconds).  This controls how long
90              the credential is valid once it has been encoded.  A value of  0
91              selects  the default TTL.  A value of -1 selects the maximum al‐
92              lowed TTL.  Note that munged can impose a maximum allowable  TTL
93              for all credentials which may be smaller than this value.
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95       -S, --socket path
96              Specify the local socket for connecting with munged.
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EXIT STATUS

100       The  munge program returns a zero exit code when the credential is suc‐
101       cessfully created and returned.  On error, it prints an  error  message
102       to stderr and returns a non-zero exit code.
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AUTHOR

106       Chris Dunlap <cdunlap@llnl.gov>
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COPYRIGHT

110       Copyright (C) 2007-2022 Lawrence Livermore National Security, LLC.
111       Copyright (C) 2002-2007 The Regents of the University of California.
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113       MUNGE  is free software: you can redistribute it and/or modify it under
114       the terms of the GNU General Public License as published  by  the  Free
115       Software  Foundation,  either version 3 of the License, or (at your op‐
116       tion) any later version.
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118       Additionally for the MUNGE library (libmunge), you can redistribute  it
119       and/or  modify  it under the terms of the GNU Lesser General Public Li‐
120       cense as published by the Free Software Foundation, either version 3 of
121       the License, or (at your option) any later version.
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