Linux 3060 chapter - 10

Created by Dmon9055 

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. (root domain)

The root domain of DNS.

/etc/cups/cupsd.conf

The main CUPS configuration file.

/etc/cups/lpoptions

The file that stores system-wide print options set by the root user.

/etc/cups/ppd

The directory that stores the active PPD files used for a particular printer.

/etc/cups/printers.conf

Contains CUPS printer definitions.

/etc/exports

The file that lists exported directories on an NFS server.

/etc/hosts

A file used for local name resolution.

/etc/named.conf

A file that lists the type of zones hosted on the DNS server and the location of the zone files.

/etc/networks

A file used for local network name resolution.

/etc/resolv.conf

A file on a resolver that lists up to three DNS servers that may be used to perform name resolution.

/etc/samba/smb.conf

The main Samba configuration file.

/usr/share/cups/model

The directory that stores sample PPD files used for a particular printer.

/var/lib/named

The directory that stores zone files in SLES.

/var/lib/nfs/etab

A file that lists currently exported directories on an NFS server.

/var/log/cups/access_log

A CUPS log file that stores information about network print requests.

/var/log/cups/error_log

A CUPS log file that stores information about the CUPS daemon.

/var/log/messages

The default log file for the DNS daemon.

/var/spool/cups

The default print queue directory in SLES.

~/.lpoptions

The file that stores user-defined print options.

accept command

Allows print jobs to enter the print queue.

Address record (A)

A DNS record that identifies hosts within a domain.

ARPANET

The network that led to the development of the Internet. It stands for Advanced Research Projects Agency Network.

authoritative answer

A name resolution response from a DNS server where the DNS server contained the appropriate record in its zone database.

Berkeley Internet Name Domain (BIND)

The reference implementation for DNS.

cache

An area of memory that stores information obtained from resolving DNS names. Entries are kept in the cache for the time period specified by the TTL.

caching-only server

A DNS server that is not authoritative for any zones. It only answers DNS queries where the answers come from other DNS servers.

cancel command

Used to remove a print job from the print queue.

Canonical NAME (CNAME)

An alias for an A record in DNS.

Common Internet File System (CIFS)

A file- and printer-sharing protocol used by Windows systems.

Common Unix Printing System (CUPS)

The default printing system in SLES.

CUPS Web Administration Tools

A series of CUPS administration utilities that may be accessed using a Web browser on port 631.

dig command

Used to perform and test name resolution using a variety of options.

disable command

Prevents print jobs in the print queue from being sent to the printer.

DNS server

A server that hosts the BIND service and responds to client (resolver) queries for name resolution.

domain

The name in DNS that identifies the organization and exists under the TLD.

Domain Name System (DNS)

The naming system used on the Internet. Each host is identified by a host name and domain name.

enable command

Allows print jobs in the print queue to be sent to the printer.

exportfs command

Used to temporarily export directories on an NFS server.

forward resolution

A name resolution request that desires the IP address for a particular FQDN.

forwarding server

A DNS server that forwards any DNS queries it cannot resolve to another DNS server on the network.

Fully Qualified Domain Name (FQDN)

A complete name that identifies a host computer in DNS. It consists of a host name (or computer name) followed by subdomain/domain names and a TLD (e.g., www.west.africa.com).

fuser command

Displays the users and processes that are accessing a certain directory.

host command

Used to perform and test name resolution.

Internet Printing Protocol (IPP)

A printing protocol that allows print jobs to be sent across the Internet using a Web browser.

kprinter

A graphical utility that is invoked when a graphical application creates a print job. It may also be used to change printing options, such as resolution.

Line Printer Daemon (LPD)

A common printing protocol used on older Linux and UNIX computers.

lp command

Used to create a print job.

lpadmin command

Used to create and manage CUPS printers.

lpoptions command

Used to create or change printing options, such as resolution.

lppasswd

Used to create CUPS passwords and access to the CUPS Web Administration Tools.

lpq command

Used to view print jobs in the print queue.

lpr command

Used to create a print job.

lprm command

Used to remove a print job from the print queue.

lpstat command

Used to view print jobs in the print queue.

Mail eXchanger (MX)

A DNS record that identifies the e-mail servers for a domain.

master server

A DNS server that contains a read-write copy of the zone database.

name resolution

The process where an FQDN is associated with its IP address.

name server

See DNS server.

Name Server (NS)

A DNS record that identifies a DNS server that is authoritative for the zone.

named

The DNS/BIND daemon in Linux.

NetBIOS

A Windows protocol that uses unique, 15-character computer names to identify network hosts.

Network File System (NFS)

A file-sharing protocol used by UNIX and Linux systems.

Network Information Service (NIS)

A service that allows the centralization of Linux and UNIX configuration.

NFS client

A computer that accesses exported files on an NFS server using the NFS protocol.

NFS server

A computer that hosts (exports) files using the NFS protocol.

nmblookup command

Displays NetBIOS computer names for hosts.

nonauthoritative answer

A name resolution response from a DNS server where the DNS server had to query other DNS servers in order to find the appropriate record.

nslookup command

Used to perform and test name resolution using a variety of options.

PoinTeR (PTR)

A DNS record that identifies the FQDN associated with an IP address for reverse resolution.

portmapper

The service that provides for RPCs in Linux.

PostScript Printer Description (PPD)

A printing format that is widely used by many printers and printing systems.

queue

A directory used to store print jobs before they are sent to the physical printer.

reject command

Prevents print jobs from entering the print queue.

Remote Procedure Call (RPC)

A routine that is executed on a remote computer.

resolver

A host that requests name resolution using DNS.

reverse resolution

A name resolution request that desires the FQDN for a particular IP address.

rpcinfo command

Displays information regarding the RPM portmapper daemon.

Samba

A set of services in Linux that provides the SMB and CIFS protocols for file and printer sharing with Windows computers.

Server Level Security

A Samba share security level that requires a valid login to another server in order to access a shared directory.

Server Message Block (SMB)

A file- and printer-sharing protocol used by Windows systems.

Share Level Security

A Samba share security level that requires a password in order to access a shared directory.

showmount command

Displays exported directories on an NFS server.

slave server

A DNS server that contains a read-only copy of the zone database obtained from a master server via a zone transfer.

smbclient command

Used to view and access Windows file and printer shares.

smbpasswd command

Sets a Windows-formatted password for Linux user accounts.

smbstatus command

Displays current Samba server connections.

socket

An established network connection between two hosts. CUPS can use sockets to print to a remote system and vice versa.

Start Of Authority (SOA)

A DNS record that identifies zone-specific information and zone transfer settings.

subdomain

The name in DNS that identifies a division of an organization and exists under the domain and TLD.

testparm command

Checks the syntax of /etc/samba/smb.conf.

Time To Live (TTL)

The amount of time a name resolution result is cached on the computer. The default TTL is set in the SOA in the zone file on the DNS server.

Top Level Domain (TLD)

The first level of names underneath the root domain in DNS.

User Level Security

A Samba share security level that requires a valid Linux login in order to access a shared directory.

workgroup

A name that identifies a group of computers in a Windows network that are not part of a domain.

zone

A specific domain in DNS that is represented by a file on a DNS server that contains the records used for name resolution.

zone transfer

The process whereby a master DNS server sends zone information to a slave DNS server.

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