Chapter 12 Study Guide - Revision history

Cilson123: Chapter 12 study guide; all information gathered and edited by Clay Wilson

2012-04-19T21:03:31Z

Chapter 12 study guide; all information gathered and edited by Clay Wilson

← Older revision		Revision as of 21:03, 19 April 2012
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	*Password is stored in ''~/.vnc/passwd''.		*Password is stored in ''~/.vnc/passwd''.
	*Connect to the VNC server using the ''vncviewer'' command.		*Connect to the VNC server using the ''vncviewer'' command.
	*

Cilson123 at 21:02, 19 April 2012

2012-04-19T21:02:48Z

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 '''Network Configuration'''
 ==Networks==
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 ===Secure Shell(SSH)===

Cilson123 at 20:47, 19 April 2012

2012-04-19T20:47:13Z

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   ''ping''
-===Name Resolution===
+===Network Services===
-*Set a host name using the ''hostname'' command.
+Network services are processes that run on your computer that provide some type of valuable service for client computers on the network. Often, they are represented by a series of daemon processes that listen for certain requests on the network. Daemons use '''port''' numbers to uniquely identify each service. Ports are defined in the ''/etc/services'' file. Port numbers range in number from 0 to 65534; ports 0 - 1023 are known as well-known ports because they represent commonly used network services. A list of well-known ports can be found on page 552. '''Stand-alone daemons''' are daemons that provided network services directly. The '''Internet Super Daemon(xinetd)''' acts somewhat like a middle man and starts the appropriate daemon to provide the network service as needed.

Cilson123 at 15:55, 19 April 2012

2012-04-19T15:55:04Z

← Older revision		Revision as of 15:55, 19 April 2012
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	*First half of address represents your network. Second half uniquely identifies computers on the LAN(link local).		*First half of address represents your network. Second half uniquely identifies computers on the LAN(link local).

	==Configuring a Network Interface==		===Configuring a Network Interface===

			*NIC(Network Interface Controller) drivers are usually contained within modules that can be inserted to the Linux kernel.
			*Modules end with the ''.ko''(kernel object) extension and are typically stored in ''/lib/modules'' directory.
			*Use ''insmod'' or ''modprobe'' commands to manually load modules into the Linux kernel.
			*Use ''lsmod'' or ''rmmod'' commands to remove a module from the Linux kernel.
			*Configure the loaded module driver for the NIC using the ''ifconfig''(interface configuration) command.
			*''dhcpclient eth0'' command configures a NIC for dynamic host configuration protocol.
			*To show interface statistics use ''ifconfig'' or ''netstat -i''.
			*The ''ifdown eth0'' and ''ifup eth0'' commands can be used to deactivate and active the network interface, respectively.
			*The ''ping'' command is used to test network connectivity.
			*All configuration options can also be achieved through a GUI within the Network Configuration tool.

			====Useful Commands====

			''insmod''
			''modprobe''
			''lsmod''
			''rmmod''
			''ifconfig''
			''netstat''
			''ifdown''
			''ifup''
			''dhcpclient''
			''ping''

			===Name Resolution===

			*Set a host name using the ''hostname'' command.
			*

Cilson123: Created page with "'''Network Configuration''' ==Networks== Be sure to have a basic understanding of local area networks and wide area networks, and their components. ===IPv4=== *Consists of f..."

2012-04-19T01:26:23Z

Created page with "'''Network Configuration''' ==Networks== Be sure to have a basic understanding of local area networks and wide area networks, and their components. ===IPv4=== *Consists of f..."

New page

'''Network Configuration'''

==Networks==

Be sure to have a basic understanding of local area networks and wide area networks, and their components.

===IPv4===

*Consists of four octets. Each octet represents an 8-bit binary number(0-255). Ex: 192.168.1.1
*32 bit address(4 octets = 4 x 8 = 32)
*Subnet mask is used to determine the host portion of the IP address.
*Default Gateway directs traffic destined to other networks(LANs). Ex: to the internet.

===IPv6===

*Uses 128 bits. Capable of supplementing 340 trillion trillion trillion IP addresses.
*No subnetting required due to an abundance of address space.
*First half of address represents your network. Second half uniquely identifies computers on the LAN(link local).

==Configuring a Network Interface==