MUNGED(8) MUNGE Uid 'N' Gid Emporium MUNGED(8) (NAME) munged - MUNGE (SYNOPSIS) munged []... (DESCRIPTION) munged MUNGE (encode) (decode) . munged (security realm) . /UID /GID . mungekey . munged (metadata) UID GID ( munged) ( ) . (MAC) Base64 . munged . UID/GID . (TTL) . (replayed) . (payload) . (OPTIONS) -h, --help . -L, --license . -V, --version . -f, --force . PRNG / . . -F, --foreground (foreground). -M, --mlockall (swap) . . . (MEMORY LOCKING) . -s, --stop . --socket . . -S, --socket path . -v, --verbose . --auth-server-dir directory . 0711 . . --auth-client-dir directory . 1733 . . --benchmark . PRNG . . --group-check-mtime boolean /etc/group . . --group-update-time seconds ( ) GID . 0 ( SIGHUP ). -1 . --key-file path . --listen-backlog integer (listen backlog) . 0 . -1 SOMAXCONN . --log-file path ( ). --max-ttl integer (TTL ) . TTL . ( ) . MUNGE . --num-threads integer (threads) . --origin address . IPv4 IPv4 . IPv4 gethostname() . null . --pid-file path (PID) . --seed-file path (seed) (PRNG). --syslog syslog . --trusted-group group GID << >> (trusted group). . ( / sticky bit ). (MEMORY LOCKING) --mlockall (swap) . ( ) ( ) . . . : systemd (systemd-based systems) /etc/systemd/system/munge.service.d/memlock.conf : [Service] LimitMEMLOCK=256M : systemctl daemon-reload systemctl restart munge.service PAM (PAM limits) /etc/security/limits.conf ( ): munge soft memlock 262144 munge hard memlock 262144 systemd PAM . systemd . ( ) (Shell environment (for testing)) munged ( ): ulimit -l 262144 munged --mlockall (Security Considerations) . (TTL) . TTL TTL munged ( --max-ttl) . TTL TTL munged . --mlockall . TTL ( ) . munged (DoS) . . munged . --max-ttl . (SIGNALS) SIGHUP GID . SIGTERM . (NOTES) (TTL) . munged . (AUTHOR) (Chris Dunlap) (COPYRIGHT) (C) 2007-2025 (Lawrence Livermore National Security, LLC). (C) 2002-2007 (The Regents of the University of California). MUNGE : (GNU General Public License) ( ) / . MUNGE (libmunge) (GNU Lesser General Public License) ( ) / . (SEE ALSO) munge(1), remunge(1), unmunge(1), munge(3), munge_ctx(3), munge_enum(3), munge(7), mungekey(8). https://github.com/dun/munge munge-0.5.18 2026-02-10 MUNGED(8)