How to change settings on Linux Systems - Revision history

Cwadmin: /* Fstab */

Cwadmin — Fri, 02 Nov 2007 20:11:30 GMT

Fstab

←Older revision		Revision as of 20:11, 2 November 2007
Line 91:		Line 91:

	This will mount /dev/sda1 to /home with an ext3 filesystems with default options. It will also check for errors if needed.		This will mount /dev/sda1 to /home with an ext3 filesystems with default options. It will also check for errors if needed.
		+
		+	== Mounting tmp noexec ==
		+	You can request a seperate partition for /tmp set up when installing your os.
		+
		+	The advantage to this is using the noexec option. This will tighten security and not allow programs be ran out of /tmp

Cwadmin: /* Fstab */

Cwadmin — Fri, 02 Nov 2007 20:08:42 GMT

Fstab

←Older revision		Revision as of 20:08, 2 November 2007
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	= Fstab =		= Fstab =
		+	Fstab stores information about what it should mount during boot up.
		+
		+	This file is important to keep accurate as it may affect your system to not boot up properly.
		+
		+	Here is an example fstab file found:
		+	/etc/fstab
		+
		+	<pre>
		+	# /etc/fstab: static file system information.
		+	#
		+	# <file system> <mount point> <type> <options> <dump> <pass>
		+	/dev/hda1 / ext3 defaults,usrquota,errors=remount-ro 0 1
		+	/dev/hda2 none swap sw 0 0
		+	proc /proc proc defaults 0 0
		+	</pre>
		+
		+	If you want to add a drive to mount automatically at bootup simply add a line to fstab.
		+
		+	For example:
		+	/dev/sda1 /home ext3 defaults 0 1
		+
		+	This will mount /dev/sda1 to /home with an ext3 filesystems with default options. It will also check for errors if needed.

Cwadmin: Protected "How to change settings on Linux Systems" [edit=sysop:move=sysop]

Cwadmin — Fri, 02 Nov 2007 20:03:54 GMT

Protected "How to change settings on Linux Systems" [edit=sysop:move=sysop]

←Older revision

Revision as of 20:03, 2 November 2007

Cwadmin at 20:03, 2 November 2007

Cwadmin — Fri, 02 Nov 2007 20:03:48 GMT

←Older revision		Revision as of 20:03, 2 November 2007
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	To restart your network services, simply issue the network restart script:		To restart your network services, simply issue the network restart script:
	/etc/init.d/networking restart		/etc/init.d/networking restart
		+
		+	= Fstab =

Cwadmin: /* Debian */

Cwadmin — Thu, 25 Oct 2007 20:23:48 GMT

Debian

←Older revision		Revision as of 20:23, 25 October 2007
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	gateway 192.168.0.1		gateway 192.168.0.1
	</pre>		</pre>
-	*	+	*These settings are an example and by no means reflect your configuration.
		+
		+	To edit your network settings, simply change each value for each address.
		+
		+	Adding ips is simple as well. If you want a virtual interface simply add an area that looks similar to:
		+	<pre>
		+	iface eth0:1 inet static
		+	address 66.154.82.74
		+	netmask 255.255.255.248
		+	</pre>
		+
		+	*The eth0:1 part will increment every time you add a virtual interface. (eth0:2, eth0:3, etc...)
		+	To restart your network services, simply issue the network restart script:
		+	/etc/init.d/networking restart

Cwadmin: /* Debian */

Cwadmin — Thu, 25 Oct 2007 20:19:39 GMT

Debian

←Older revision		Revision as of 20:19, 25 October 2007
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	broadcast 192.168.0.255		broadcast 192.168.0.255
	gateway 192.168.0.1		gateway 192.168.0.1
-	<pre>	+	</pre>
		+	*

Cwadmin at 20:06, 25 October 2007

Cwadmin — Thu, 25 Oct 2007 20:06:42 GMT

←Older revision		Revision as of 20:06, 25 October 2007
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	After modifying your network information, you should either reboot or issue the following:		After modifying your network information, you should either reboot or issue the following:
	/etc/init.d/networking restart		/etc/init.d/networking restart
		+
		+	== Debian ==
		+	Debian has a very uniform way of storing network settings and they are very easy to read and edit.
		+
		+	Network settings are stored in:
		+	/etc/network/interfaces
		+	*Unlike CentOS, each interface's configuration will be stored in this file.
		+	The file will look similar to this:
		+	<pre>
		+	auto lo
		+	iface lo inet loopback
		+	auto eth0
		+	iface eth0 inet static
		+	address 192.168.0.2
		+	netmask 255.255.255.0
		+	network 192.168.0.0
		+	broadcast 192.168.0.255
		+	gateway 192.168.0.1
		+	iface eth1 inet static
		+	address 192.168.0.3
		+	netmask 255.255.255.0
		+	network 192.168.0.0
		+	broadcast 192.168.0.255
		+	gateway 192.168.0.1
		+	<pre>

Cwadmin: New page: This area will discuss the different operating systems we offer and where to change important system files. = Networking = The core system files of your network. == CentOS == CentOS will...

Cwadmin — Tue, 23 Oct 2007 02:53:36 GMT

New page: This area will discuss the different operating systems we offer and where to change important system files. = Networking = The core system files of your network. == CentOS == CentOS will...

New page

This area will discuss the different operating systems we offer and where to change important system files.

= Networking =
The core system files of your network.

== CentOS ==
CentOS will store network settings inside a directory named:
/etc/sysconfig/network-scripts/
The particular file that has your settings (depending on your interface), would be:
ifcfg-eth0 (or eth1 etc...)
The ifcfg-ethX file will look something like this:
<pre>
DEVICE=eth0
ONBOOT=yes
BOOTPROTO=static
IPADDR=192.168.0.2
NETMASK=255.255.255.0
GATEWAY=192.168.0.1
</pre>
*These settings are an example and by no means reflect your configuration.
=== Netconfig ===
These settings may be a little cryptic to the normal user, so CentOS came packaged with a network configuration interface.

Simply use the following command at your bash prompt:
netconfig
You will see a easy to understand, easy to use menu come up and allow you to enter your networking data.

After modifying your network information, you should either reboot or issue the following:
/etc/init.d/networking restart