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memlockd
Langue: en
Version: 304268 (debian - 07/07/09)
Section: 8 (Commandes administrateur)
NAME
memlockd - daemon to lock files in memory with mlockSYNOPSIS
memlockd [ -c config-file ] [ -d ] [ -u user ]DESCRIPTION
This manual page documents briefly the memlockd command.It is used to lock system programs and config files in memory so that if a DOS attack is experienced then the chance of the sys-admin regaining control of the system in a reasonable amount of time (and therefore having a reasonable chance of discovering the cause of the problem) is significantly increased.
OPTIONS
The -c option is used to specify the fully-qualified path name to a config file that lists the names of files to lock, if the config file is not specified then it will default to /etc/memlockd.cfg.The -d option specifies debugging mode, the program will not fork and will produce it's logging messages on stderr instead of via syslog.
The -u option specifies the name of a user to use for running ldd (for recursive operation). Note that locking shared objects that are writable by non-root is not safe, but using a different UID will reduce the risk.
The config file will contain a number of fully qualified names of files to lock in RAM. When locking shared objects and ELF binaries it is possible to prefix the file name with a + character to indicate that memlockd should recursively lock all shared objects that the program requires and all shared objects that those objects require.
SEE ALSO
- mlock(2), mmap(1).
AUTHOR
memlockd was written by Russell Coker <russell@coker.com.au>Contenus ©2006-2024 Benjamin Poulain
Design ©2006-2024 Maxime Vantorre