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Linux Operations and Administration
Chapters 6-10
59
Other
Undergraduate 2
11/11/2013

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Term
Archive
Definition
A file containing many other files called members
Term
Compression
Definition
The process of reducing the size of data to store information in less space.
Term
Copy-in mode
Definition
The cpio mode in which files are extracted from an archive.
Term
copy-out mode
Definition
The cpio mode in which archives are created from the output of the ls or find command.
Term
copy-pass mode
Definition
The cpio mode in which files from one directory tree copied to another without creating an archive.
Term
cron daemon (crond)
Definition
A system daemon that uses a configuration file called a cron table to schedule commands to run at set intervals.
Term
cron table
Definition
A configuration file that specifies tasks for the cron daemon to run at specific times
Term
extraction
Definition
The process of unpacking an archive
Term
full backup
Definition
Also known as a level 0 backup
Term
incremental backup
Definition
An archive that contains only files modified since the last backup
Term
members
Definition
Files stored in an archive
Term
snapshot file
Definition
Afile specified as an argument to the --listed-incremental option, which is designed to tell t he tar utility which file have been changed, added, or deleted since the last backup
Term
standard input
Definition
A source of input, usually the keyboared
Term
standard output
Definition
A source of output, usually the screen
Term
system backup
Definition
The process of copying files and directories to an archive for the purpose of retrieval in the even of a system failure
Term
authentication
Definition
The process of verifying a user's identity by checking for his or her username and password in a system database
Term
group identifier (GID)
Definition
A unique number corresponding to a group
Term
primary group
Definition
The owner of all new files a user creates (specified in the /etc/password file)
Term
secondary groups
Definition
Additional groups the root user assigns to other users on the system
Term
skeleton directory
Definition
A directory containing files copied to every new user's home directory by default
Term
user identifier (UID)
Definition
A unique number representing the username
Term
binary numbering system
Definition
A numbering system consisting of only 1s and 0s
Term
bit
Definition
Also known as a binary digit
Term
fragmentation
Definition
The process of packets being broken down into small packets to transmit them through different networks
Term
host ID
Definition
The second part of an IP address
Term
Internet Control Message Protocol (ICMP)
Definition
A protocol in the Internet layer of the TCP/IP model that generates IP error messages
Term
Internet Protocol (IP)
Definition
The main protocol in the TCP/IP suite
Term
IP address
Definition
A unique number that identifies the computer or device on a TCP/IP network
Term
network ID
Definition
The first part of an IP address
Term
ocet
Definition
An 8-bit binary number making up each of the four sets of numbers in a IPv4 address
Term
Packets
Definition
Packages of data that are routed through the network
Term
subnet mask
Definition
A method for determining which part of an IP address is used for the network ID and which part is used for the host ID
Term
Transmission Control Protocol (TCP)
Definition
A connection-oriented protocol responsible for keeping track of packets and reassembling them into a single file after they've arrived
Term
Transmission Control Protocol/Internet Protocol (TCP/IP)
Definition
Also known as the Internet Protocol suite,it's an internationally accepted set of rules for connecting computers to the Internet and most other networks
Term
User Datagram Protocol (UDP)
Definition
A connectionless protocol that uses IP to get packets from one computer to another
Term
metadata
Definition
The contents of a label containing descriptive information about a software package
Term
patterns
Definition
Collections of software packages that relate to a specific function, such as server software
Term
repository
Definition
A storage location that's usually a remote Web server
Term
RPM dependencies
Definition
A feature of the RPM utility that determines whether a software package requires the capabilities of another application to run and then displays his information
Term
RPM Package Manager (RPM)
Definition
A utility for installing and managing software packages
Term
smart update
Definition
An RPM feature that retains the previous version's configuration file
Term
software package
Definition
An archive of related files, such as configuration, data, and documentation files, constituting a software application
Term
default host
Definition
The first declared virtual host in the Apache configuration file
Term
directives
Definition
Instruction embedded in Apache configuration files that tell Apache how to run
Term
DocumentRoot directive
Definition
An Apache instruction that defines the directory path Apache uses to serve files for the host
Term
hypertext
Definition
Text with references or links embedded that take users to other files or text
Term
IP-based virtual host
Definition
Multiple IP addresses for a single machin
Term
markup language
Definition
Consists of instructions called tags that define how text is displayed
Term
name-based virtual host
Definition
Multiple Web sites sharing the same IP address
Term
NameVirtualHost device
Definition
An Apache instruction that specifies the IP address to use for name-based virtual hosts
Term
Order, Allow, and Deny directives
Definition
An Apache instruction that defines which hosts can and can't access the files in a particular way
Term
port
Definition
An interface for connecting a hardware device, such as a disk drive or printer
Term
ServerAdmin directive
Definition
An Apache instruction that specifies the Apache administrator's e-mail account
Term
ServerAlias directive
Definition
An Apache instruction that associates multiple names with a virtual host
Term
ServerName directive
Definition
An Apache instruction that defines the server name with a virtual host
Term
tags
Definition
Instructions for formatting text in HTML
Term
Uniform Resource Locator (URL)
Definition
An Address to a resource on the Internet
Term
virtual host
Definition
An Apache feature that makes it possible to run multiple domains on one physical machine
Term
Web server
Definition
A computer on the network with the primary role of serving Web pages to clients on request
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