Section 8: administration and privileged commands
dnf – DNF Command Reference Synopsis dnf [options] <command> [<args>…] Description DNF is the next upcoming major version of Yum, a package manager for RPM-based Linux distributions. It roughly maintains CLI compatibility with Yum and defines strict API for extensions and plugins. Plugins can modify or extend features of DNF or provide additional CLI commands…
dnf.automatic – DNF Automatic Synopsis dnf-automatic [<config file>] Description Alternative CLI to dnf upgrade with specific facilities to make it suitable to be executed automatically and regularly from systemd timers, cron jobs and similar. The operation of the tool is completely controlled by the configuration file and the command only accepts single optional argument pointing…
dnet – dumb networking library test program Synopsis dnet command args […] Description dnet Ar command Ar args Op … is a simple test program for the dnet(3) library. It can be used to compose and transmit network datagrams as a Unix-style filter (e.g. reading from or writing to files and pipes) or modify the…
dn2rdn – Directory Server script to check for outdated index versions Synopsis dn2rdn [-Z serverID] [-h] [-f] [-v] [-d debuglevel] Description Checks the database index version, and if it’s in a old format, then it will rebuild the indexes. The server instance needs to be stopped prior to running this script. Options A summary of…
dmstats — device-mapper statistics management Synopsis dmsetup stats command [OPTIONS] dmstats command device_name | –major major –minor minor | -u|–uuid uuid [-v|–verbose] dmstats clear device_name [–allprograms|–programid id] [–allregions|–regionid id] dmstats create device_name…|file_path…|–alldevices [–areas nr_areas|–areasize area_size] [–bounds histogram_boundaries] [–filemap] [–follow follow_mode] [–foreground] [–nomonitor] [–nogroup] [–precise] [–start start_sector –length length|–segments] [–userdata user_data] [–programid id] dmstats delete device_name|–alldevices…
dmsetup — low level logical volume management Synopsis dmsetup clear device_name dmsetup create device_name [-u|–uuid uuid] [–addnodeoncreate|–addnodeonresume] [-n|–notable|–table table|table_file] [–readahead [+]sectors|auto|none] dmsetup create –concise [concise_device_specification] dmsetup deps [-o options] [device_name…] dmsetup help [-c|-C|–columns] dmsetup info [device_name…] dmsetup info -c|-C|–columns [–count count] [–interval seconds] [–nameprefixes] [–noheadings] [-o fields] [-O|–sort sort_fields] [–separator separator] [device_name] dmsetup load device_name…
dmraid – discover, configure and activate software (ATA)RAID Synopsis dmraid {-a|–activate} {y|n|yes|no} [-d|–debug]… [-v|–verbose]… [-i|–ignorelocking] [-f|–format FORMAT[,FORMAT…]] [{-P|–partchar} CHAR] [-p|–no_partitions] [-Z|–rm_partitions] [–separator SEPARATOR] [-t|–test] [-u|–update_defer] [RAID-set…] dmraid {-b|–block_devices} [-c|–display_columns][FIELD[,FIELD…]]… [-d|–debug]… [-v|–verbose]… [–separator SEPARATOR] [device-path…] dmraid {-h|–help} dmraid {-l|–list_formats} [-d|–debug]… [-v|–verbose]… dmraid {-n|–native_log} [-d|–debug]… [-v|–verbose]… [-i|–ignorelocking] [-f|–format FORMAT[,FORMAT…]] [–separator SEPARATOR] [device-path…] dmraid {-R| –rebuild} RAID-set [device-path] [-u|–update_defer] dmraid {-x| –remove} [RAID-set] dmraid -f FORMAT-handler…
dmraid – discover, configure and activate software (ATA)RAID Synopsis dmraid {-a|–activate} {y|n|yes|no} [-d|–debug]… [-v|–verbose]… [-i|–ignorelocking] [-f|–format FORMAT[,FORMAT…]] [{-P|–partchar} CHAR] [-p|–no_partitions] [-Z|–rm_partitions] [–separator SEPARATOR] [-t|–test] [-u|–update_defer] [RAID-set…] dmraid {-b|–block_devices} [-c|–display_columns][FIELD[,FIELD…]]… [-d|–debug]… [-v|–verbose]… [–separator SEPARATOR] [device-path…] dmraid {-h|–help} dmraid {-l|–list_formats} [-d|–debug]… [-v|–verbose]… dmraid {-n|–native_log} [-d|–debug]… [-v|–verbose]… [-i|–ignorelocking] [-f|–format FORMAT[,FORMAT…]] [–separator SEPARATOR] [device-path…] dmraid {-R| –rebuild} RAID-set [device-path] [-u|–update_defer] dmraid {-x| –remove} [RAID-set] dmraid -f FORMAT-handler…
dmidecode_selinux – Security Enhanced Linux Policy for the dmidecode processes Description Security-Enhanced Linux secures the dmidecode processes via flexible mandatory access control. The dmidecode processes execute with the dmidecode_t SELinux type. You can check if you have these processes running by executing the ps command with the -Z qualifier. For example: ps -eZ | grep…
dmidecode – DMI table decoder Synopsis dmidecode [OPTIONS] Description dmidecode is a tool for dumping a computer’s DMI (some say SMBIOS) table contents in a human-readable format. This table contains a description of the system’s hardware components, as well as other useful pieces of information such as serial numbers and BIOS revision. Thanks to this…
dmfilemapd — device-mapper filemap monitoring daemon Synopsis dmfilemapd [file_descriptor] [group_id] [abs_path] [mode] [foreground[verbose]] Description The dmfilemapd daemon monitors groups of dmstats regions that correspond to the extents of a file, adding and removing regions to reflect the changing state of the file on-disk. The daemon is normally launched automatically by the dmstats create command, but…
dmeventd — Device-mapper event daemon Synopsis dmeventd [-d [-d [-d]]] [-f] [-h] [-l] [-R] [-V] [-?] Description dmeventd is the event monitoring daemon for device-mapper devices. Library plugins can register and carry out actions triggered when particular events occur. Options -d Repeat from 1 to 3 times ( -d, -dd, -ddd ) to increase the…
dmevent_tool – A utility used to load a DSO into dmeventd and (un)register devices with it for monitoring Synopsis dmevent_tool -[Vhmru] {RAID device name} {DSO Name} Description dmevent_tool is a userspace utility used to register/unregister DSOs with the daemon dmeventd. If used with the -m command line parameter users can display all of the…
dmesg_selinux – Security Enhanced Linux Policy for the dmesg processes Description Security-Enhanced Linux secures the dmesg processes via flexible mandatory access control. The dmesg processes execute with the dmesg_t SELinux type. You can check if you have these processes running by executing the ps command with the -Z qualifier. For example: ps -eZ | grep…
dmevent_tool – A utility used to load a DSO into dmeventd and (un)register devices with it for monitoring Synopsis dmevent_tool -[Vhmru] {RAID device name} {DSO Name} Description dmevent_tool is a userspace utility used to register/unregister DSOs with the daemon dmeventd. If used with the -m command line parameter users can display all of the…
dlm_tool – a utility for the dlm and dlm_controld daemon Synopsis dlm_tool [COMMAND] [OPTIONS] [ name ] Commands ls Display dlm_controld internal lockspace state. status Dump dlm_controld daemon state. dump Dump dlm_controld debug buffer. dump_config Dump dlm_controld config settings. fence_ack nodeid Quit trying to fence a node. log_plock Dump dlm_controld plock debug buffer. plocks name…
dlm_stonith – a proxy for fencing via stonith/pacemaker Synopsis dlm_stonith Description dlm_controld can use dlm_stonith as a proxy fence agent when the stonith/pacemaker system performs actual fencing. dlm_stonith is run by dlm_controld, and is not meant to be run manually. dlm_controld provides the options on stdin as key=val; command line options are for testing. If…
dlm_selinux – Security Enhanced Linux Policy for the dlm processes Description Security-Enhanced Linux secures the dlm processes via flexible mandatory access control. Nsswitch Domain File Contexts SELinux requires files to have an extended attribute to define the file type. You can see the context of a file using the -Z option to lsP Policy governs…
dlm_controld_selinux – Security Enhanced Linux Policy for the dlm_controld processes Description Security-Enhanced Linux secures the dlm_controld processes via flexible mandatory access control. The dlm_controld processes execute with the dlm_controld_t SELinux type. You can check if you have these processes running by executing the ps command with the -Z qualifier. For example: ps -eZ | grep…
dlm_controld – dlm cluster control daemon Synopsis dlm_controld [OPTIONS] Description The kernel dlm requires a user daemon to manage lockspace membership. dlm_controld manages lockspace membership using corosync cpg groups, and translates membership changes into dlm kernel recovery events. dlm_controld also manages posix locks for cluster file systems using the dlm. Options Command line options override…