Section 5: file formats
nut.conf – UPS definitions for Network UPS Tools Description This file attempts to standardize the various files being found in different installations, like /etc/default/nut on Debian based systems and /etc/sysconfig/ups on RedHat based systems. Distribution’s init script should source this file in order to determine which components have to be started. Blank lines are ignored….
numa – overview of Non-Uniform Memory Architecture Description Non-Uniform Memory Access (NUMA) refers to multiprocessor systems whose memory is divided into multiple memory nodes. The access time of a memory node depends on the relative locations of the accessing CPU and the accessed node. (This contrasts with a symmetric multiprocessor system, where the access time…
nuclient.conf – nuauth client configuration file Synopsis /etc/nuclient.conf Description The configuration file nuclient.conf is used by all nuauth clients (for ex, nutcpc or nuapplet2). The file is designed to be human readable and contains a list of keywords with values that provide configuration values for libnuclient. Configuration file uses the key=value format, without spaces between…
ntp_mon – Monitoring Options Introduction The ntpd includes a comprehensive monitoring facility which collects statistical data of various types and writes the data to files associated with each type at defined events or intervals. The files associated with a particular type are collectively called the generation file set for that type. The files in…
ntp_misc – Miscellaneous Options broadcastdelay seconds The broadcast and multicast modes require a special calibration to determine the network delay between the local and remote servers. Ordinarily, this is done automatically by the initial protocol exchanges between the client and server. In some cases, the calibration procedure may fail due to network or server…
ntp_decode – ntpd Event Messages and Status Words Introduction This page lists the status words, event messages and error codes used for ntpd reporting and monitoring. Status words are used to display the current status of the running program. There is one system status word and a peer status word for each association. There…
ntp_clock – Reference Clock Options Reference Clock Support The NTP Version 4 daemon supports some three dozen different radio, satellite and modem reference clocks plus a special pseudo-clock used for backup or when no other clock source is available. Detailed descriptions of individual device drivers and options can be found in the Reference Clock…
ntp_auth – Authentication Options Introduction This page describes the various cryptographic authentication provisions in NTPv4. Details about the configuration commands and options are given on the Configuration Options page. Details about the automatic server discovery schemes are described on the Automatic Server Discovery Schemes page. Additional information is available in the papers, reports, memoranda…
ntp_acc – Access Control Options Access Control Support The ntpd daemon implements a general purpose access control list (ACL) containing address/match entries sorted first by increasing address values and then by increasing mask values. A match occurs when the bitwise AND of the mask and the packet source address is equal to the bitwise…
ntp.conf – Server Options Following is a description of the configuration commands in NTPv4. There are two classes of commands, configuration commands that configure an association with a remote server, peer or reference clock, and auxilliary commands that specify environmental variables that control various related operations. Configuration Commands The various modes are determined by…
ntp.conf – Server Options Following is a description of the configuration commands in NTPv4. There are two classes of commands, configuration commands that configure an association with a remote server, peer or reference clock, and auxilliary commands that specify environmental variables that control various related operations. The various modes described on the Association Management…
nsswitch.conf – Name Service Switch configuration file Description The Name Service Switch (NSS) configuration file, /etc/nsswitch.conf, is used by the GNU C Library to determine the sources from which to obtain name-service information in a range of categories, and in what order. Each category of information is identified by a database name. The file is…
nsswitch.conf – Name Service Switch configuration file Description The Name Service Switch (NSS) configuration file, /etc/nsswitch.conf, is used by the GNU C Library and certain other applications to determine the sources from which to obtain name-service information in a range of categories, and in what order. Each category of information is identified by a database…
nss_ldap – LDAP nameservice provider Description The nss_ldap module is a set of C library extensions which allows X.500 and LDAP directory servers to be used as a primary source of name service information. (Name service information typically includes users, hosts, groups, and other such data historically stored in flat files or NIS.) Features of…
nss – Name Service Switch configuration file Description Each call to a function which retrieves data from a system database like the password or group database is handled by the Name Service Switch implementation in the GNU C library. The various services provided are implemented by independent modules, each of which naturally varies widely from…
nss-ldapd.conf – configuration file for LDAP nameservice provider Description The nss-ldapd module allows LDAP directory servers to be used as a primary source of name service information. (Name service information typically includes users, hosts, groups, and other such data historically stored in flat files or NIS.) The file nss-ldapd.conf contains the configuration information for running…
nslcd.conf – configuration file for LDAP nameservice daemon Description The nss-pam-ldapd package allows LDAP directory servers to be used as a primary source of name service information. (Name service information typically includes users, hosts, groups, and other such data historically stored in flat files or NIS.) The file nslcd.conf contains the configuration information for running…
nsd.conf – NSD configuration file Synopsis nsd.conf Description Nsd.conf is used to configure nsd(8). The file format has attributes and values. Some attributes have attributes inside them. The notation is: attribute: value. Comments start with # and last to the end of line. Empty lines are ignored as is whitespace at the beginning of a…
nsd.conf – NSD configuration file Synopsis nsd.conf Description Nsd.conf is used to configure nsd(8). The file format has attributes and values. Some attributes have attributes inside them. The notation is: attribute: value. Comments start with # and last to the end of line. Empty lines are ignored as is whitespace at the beginning of a…
/etc/nscd.conf – name service cache daemon configuration file Description The file /etc/nscd.conf is read from nscd(8) at startup. Each line specifies either an attribute and a value, or an attribute, service, and a value. Fields are separated either by SPACE or TAB characters. A ‘#’ (number sign) indicates the beginning of a comment; following characters,…