The Linux Manuals (man pages) document is an important part of Linux documents. Linux Manuals are organized as several sections. Each section has a group of commands for a specific area in Linux usage, administration or development.
nut-scanner – scan communication buses for NUT devices Synopsis nut-scanner -h nut-scanner [OPTIONS] Description nut-scanner scans available communication buses and displays any NUT-compatible devices it has found. Installation nut-scanner is only built if libltdl (part of libtool development suite) is available. Available options (USB, SNMP, IPMI, …) will vary according to the available compile time…
nut-recorder – utility to record device status and values changes Synopsis nut-recorder device-name [output-file] [interval] Description nut-recorder is an utility to record sequences from running devices (such as power failures, or any other value changes) from upsd, and dump it in a .seq format. The .seq file can then be used by the dummy-ups(8) driver…
nut-ipmipsu – Driver for IPMI Power Supply Units (PSU) Synopsis nut-ipmipsu -h nut-ipmipsu -a PSU_NAME [OPTIONS] Note This driver is experimental, and still a work-in-progress. Feedback is encouraged. Note This man page only documents the hardware-specific features of the nut-ipmipsu driver. For information about the core driver, see nutupsdrv(8). Supported Hardware This driver should support…
numastat numastat – Show per-NUMA-node memory statistics for processes and the operating system Syntax numastat numastat [-V] numastat [<PID>|<pattern>…] numastat [-c] [-m] [-n] [-p <PID>|<pattern>] [-s[<node>]] [-v] [-z] [<PID>|<pattern>…] Description numastat with no command options or arguments at all, displays per-node NUMA hit and miss system statistics from the kernel memory allocator. This default numastat…
numad_selinux – Security Enhanced Linux Policy for the numad processes Description Security-Enhanced Linux secures the numad processes via flexible mandatory access control. The numad processes execute with the numad_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…
numad – A user-level daemon that provides placement advice and process management for efficient use of CPUs and memory on systems with NUMA topology. Synopsis numad [-dhvV] numad [-C 0|1] numad [-H THP_hugepage_scan_sleep_ms] numad [-i [min_interval:]max_interval] numad [-K 0|1] numad [-l log_level] numad [-m target_memory_locality] numad [-p PID] numad [-r PID] numad [-R reserved-CPU-list] numad…
numactl – Control NUMA policy for processes or shared memory Synopsis numactl [ –all ] [ –interleave nodes ] [ –preferred node ] [ –membind nodes ] [ –cpunodebind nodes ] [ –physcpubind cpus ] [ –localalloc ] [–] command {arguments …} numactl –show numactl –hardware numactl [ –huge ] [ –offset offset ] […
nufw – NUFW User filtering gateway server Synopsis nufw [ -h ] [ -V ] [ -D ] [ -m ] [ -v[v…] ] [ -s ] [ -S ] [ -N ] [ -A debug_area ] [ -k keyfile ] [ -c certfile ] [ -a cafile ] [ -r crlfile ] [ -n…
nuauth – NUFW authentication server Synopsis nuauth [ -h ] [ -V ] [ -v[v…] ] [ -l (local, for clients) port ] [ -C (local, for clients) address ] [ -L (local, for nufw) address ] [ -p (local, for nufw) port ] [ -t timeout ] [ -D ] Description This manual page…
nuaclgen – NUFW acl generator Synopsis nuaclgen [ –Schema eq|ineq ] [ –Aclname ACLDN ] [ –saddr NETWORK1 ] [ –daddr NETWORK2 ] [ –proto PROTONUMBER ] [ –sport P1[:P2] ] [ –dport P3[:P4] ] [ –OsName OSNAME ] [ –OsVersion OSVERSION ] [ –OsRelease OSRELEASE ] [ –AppName APPLICATION NAME ] [ –AppSig APPLICATION…
ntsysv – simple interface for configuring runlevels Synopsis ntsysv [–back] [–level <levels>] Description ntsysv is a simple interface for configuring runlevel services which are also configurable through chkconfig. By default, it configures runlevels 2, 3, 4, and 5. If the user would like to configure other runlevels, those levels can be specified on the command…
ntptrace – trace a chain of NTP servers back to the primary source Synopsis ntptrace [ -n ] [ -m maxhosts ] [ server ] Description ntptrace determines where a given Network Time Protocol (NTP) server gets its time from, and follows the chain of NTP servers back to their master time source. If…
ntptime – read and set kernel time variables Synopsis ntptime [ -MNchr ] [ -e est_error ] [ -f frequency ] [ -m max_error ] [ -o offset ] [ -s status ] [ -t time_constant] [ -T tai_offset ] Description This program is useful only with special kernels described in the A Kernel…
ntpstat – show network time synchronisation status Synopsis ntpstat Description ntpstat will report the synchronisation state of the NTP daemon (ntpd) running on the local machine. If the local system is found to be synchronised to a reference time source, ntpstat will report the approximate time accuracy. When the synchronised state is reported, it means…
ntpq – standard NTP query program Synopsis ntpq [-46dinp] [-c command] [host] […] Description The ntpq utility program is used to monitor NTP daemon ntpd operations and determine performance. It uses the standard NTP mode 6 control message formats defined in Appendix B of the NTPv3 specification RFC1305. The same formats are used in…
ntpdc – special NTP query program Synopsis ntpdc [ -46dilnps ] [ -c command ] [ host ] [ … ] Description ntpdc is used to query the ntpd daemon about its current state and to request changes in that state. The program may be run either in interactive mode or controlled using command…
ntpdate – set the date and time via NTP Disclaimer: The functionality of this program is now available in the ntpd program. See the -q command line option in the ntpd – Network Time Protocol (NTP) daemon page. After a suitable period of mourning, the ntpdate program is to be retired from this distribution…
ntpd_selinux – Security Enhanced Linux Policy for the ntpd processes Description Security-Enhanced Linux secures the ntpd processes via flexible mandatory access control. The ntpd processes execute with the ntpd_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…
ntpd – Network Time Protocol (NTP) daemon Synopsis ntpd [ -46aAbdDgLmnNqx ] [ -c conffile ] [ -f driftfile ] [ -i jaildir ] [ -I iface ] [ -k keyfile ] [ -l logfile ] [ -p pidfile ] [ -P priority ] [ -r broadcastdelay ] [ -s statsdir ] [ -t…
ntp-wait – waits until ntpd is in synchronized state Synopsis ntp-wait [ -fv ] [ -n tries ] [ -s seconds ] Description The ntp-wait program blocks until ntpd is in synchronized state. This can be useful at boot time, to delay the boot sequence until after "ntpd -g" has set the time. Command…