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Source code for DHCP relay

Plz help me get DHCP relay source code to work on linux

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That has to be implemented.

Posted on Jun 18, 2008

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Even i too wanted the same. If you find it, plese let me know. My mail id is subhash.dgc@gmail.com

Posted on Feb 21, 2008

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I dnt like


hi! nothing to worry! feel boring to work with older operating system(windows,mac)! here are the simple tips to enjoy with new opearting system! other than windows several linux (open source-free) operating softwares are available! such website are available in several linux websites u can boot such os with ur thumb drive(flash drive, pendrive,memory card of ur phone)!
u can browse such linux operating systems in www.softpedia.com,www.pendrivelinux.com...! www.ubuntu.com,etc.
in these second website www.pendrivelinux offers usb installer which guides u to install such os in pendrive irrespective of ur harddisk! or else u can download and write in cd and use as operating cd!
some of famous os are in linux are
fedora,mint,suse,ubuntu.kubuntu,edubuntu,puppylinux,lucid linux etc! thats it enjoy!
like my comments plz rate my comment! CHEERZ...!

Jun 08, 2011 | Computers & Internet

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DHCP Server configuration in Linux


Linux is a UNIX based operating system. It is a server operating system. REDHAT Linux is Enterprise version of Linux. Now a day's Most of corporate sectors use red hat Linux as server in their company because it is secure very much.

Full form of DHCP "Dynamic Host Configuration Protocol. DHCP server assigns IP addresses and other network configuration information like subnet mask, broadcast address, etc to computers on a network. The DHCP assignments are the following.

Lease Request: Client broadcasts their request to DHCP server with a source address of 0.0.0.0 and a destination address of 255.255.255.255.
IP lease offer: DHCP server replies with an IP address, subnet mask, network gateway, name of the domain, name servers, duration of the lease and the IP address of the DHCP server.

Lease Selection: Client receives offer and broadcasts to al DHCP servers that will accept given offer so that other DHCP server need not make an offer.

The DHCP server then sends an ack to the client. The client is configured to use TCP/IP. Lease Renewal: When half of the lease time has expired, the client will issue a new request to the DHCP server.

Installation of DHCP server: First of all while install the RedHat Linux enterprise version server be careful about the ports and the services must be turned on. To create DHCP server in Linux first download DHCP RPM package and install with "rpm-ivh" command. Where I have done it there I have create YUM server, so easily I have download and install it by YUM (yum install dhcp version). DHCP package will locate in /usr/share/doc/at Linux file system. I copied the DHCP's files from /usr/share/doc/ to /etc/dhcpd.conf.. Then I started to configure the dhcpd.conf file to route the DHCP server in there local network. I have open the configuration file with "vi" command. Then commented out the lines from "default gateway to option netbios" because system don't read the commented lines. After that I set the range of IP address in dynamic- bootp of their local assumption of system. I have change the "next-server" with the dhcp server name and have also change the fixed address with the dhcp server IP address (end range of dynamic IP). It is very easy job to configure DHCP server. After configure the .conf file of dhcp just turn on the service with "chkconfig" command and restart the dhcp service. After that entire job I reboot the system. And after rebooting of server I turned on the other client system. While startup the client system without static IP address all of those picked up IP from dhcp server and going on successfully. I have prefer the command line mode to do the total job.
The DHCP server configure file is following:

ddns-update-style interim
ignore client-updates

subnet 192.168.1.0 netmask 255.255.255.0 {
# The range of IP addresses the server
# will issue to DHCP enabled PC clients
# booting up on the network

range 192.168.1.201 192.168.1.220;
# Set the amount of time in seconds that
# a client may keep the IP address

default-lease-time 86400;
max-lease-time 86400;

# Set the default gateway to be used by
# the PC clients

option routers 192.168.1.1;
# Don't forward DHCP requests from this
# NIC interface to any other NIC
# interfaces

option ip-forwarding off;

# Set the broadcast address and subnet mask
# to be used by the DHCP clients

option broadcast-address 192.168.1.255;
option subnet-mask 255.255.255.0;

# Set the NTP server to be used by the
# DHCP clients

option ntp-servers 192.168.1.100;

# Set the DNS server to be used by the
# DHCP clients

option domain-name-servers 192.168.1.100;

# If you specify a WINS server for your Windows clients,
# you need to include the following option in the dhcpd.conf file:

option netbios-name-servers 192.168.1.100;

# You can also assign specific IP addresses based on the clients'
# ethernet MAC address as follows (Host's name is "laser-printer":

host laser-printer {
hardware ethernet 08:00:2b:4c:59:23;
fixed-address 192.168.1.222;
}
}
#
# List an unused interface here
#
subnet 192.168.2.0 netmask 255.255.255.0 {
}

on Mar 17, 2011 | Computers & Internet

1 Answer

Ford mondeo 2001 both the head lights not working


Your relay is more than likely the culprit. There is a relay box in the engine compartment that houses this relay. A relay is used to control a high current or high voltage source with a low current low voltage source. There should be a diagram on the bottom of the relay housing cover.

Feb 17, 2010 | 2001 Ford Focus

1 Answer

I cann't find device driver of RT2070 Chip usb type dongle.linux


http://www.opendrivers.com/freedownload/283907/ralink-rt3070-rt2070-wireless-usb-driver-2.2.1.0-1.2.1.0-windows-2000-xp-vista-download.html


http://www.freeos.com/articles/2677

http://network.free-driver-download.com/ralink.html
go for this thre website then try it
go for it

Mar 30, 2009 | Computers & Internet

1 Answer

I DONT KNOW HW TO CONFIGURE THE IP ADDRESS IN DOS MODE SO PLZ .HELP ME...AND GRAND ME THE CODE OF CONFIGURING SYSTEMS .. THANKING U IN ADVANCE SINCERELY FASMIN


You can use the netsh command to configure Ip adresses.

1. IP via DHCP:
netsh set address name="MyLocalAreaConnection" source=dhcp

2. static IP:
netsh set address name="MyLocal AreaConnection" source=static addr=192.168.1.61 mask=255.255.255.0 gateway=192.168.1.1

- no line breaks in the commands
- change names and numbers to your needs
- check on mistyping and spaces between the commands



Feb 23, 2009 | Microsoft Windows Server Standard 2003 for...

1 Answer

Wirless driver for linux


hi linksys doenot have the wireless drivers for linux but you can try the following steps:
-download the windows drivers. Extract them to c:\temp\linksys
- Now burn them or put them on a media or somthing so you can transfer these files over to linux (note: linux wont beable to extract the exe file)
- Download ndiswrapper for linux located at http://sourceforge.net/project/showfiles.php?group_id=93482
- Now make sure you have all the development tools installed in fedora
- Now download dhcpcd from http://www.phystech.com/ftp/dhcpcd-1.3.22-pl4.tar.gz
- log into your linux box as root
- Now make make sure all the files (*gz files, and linksys driver files) are in the root partition on the linux machine (/root/wireless_driver) if "wireless_driver" is not there make the directory (which u will have to do) "mkdir /root/wireless_driver"
- now at the command prompt (terminal) go into the "wireless_driver" directory "cd /root/wireless_driver"
- now type "tar xvfpz ndiswrapper-0.12.tar.gz"
- "cd ndiswrapper-0.12"
- "make install"
- "cd .."
- "tar xvfpz dhcpcd-1.3.22-pl4.tar.gz"
- "cd dhcpcd-1.3.22"
- "./configure"
- "make && make install"
- "cd .."
- "source /etc/profile" (note: you might want to edit root's .bashrc and add source /etc/profile there, some how fc3 doesnt have root source /etc/profile for some reason)
- "cd /root/wireless_driver/WMP54GS_20040423/Drivers"
- "ndiswrapper -i BCMWL5.inf"
- "ls /etc/ndiswrapper/bcmwl5" u should get a list of alot file in here
- "modprobe ndiswrapper"
- "dmesg wlan0" show see wlan0 if its there your good if not then somthings wrong - please post everything thats comes out of dmesg "dmesg > demout"
- now for a little script open your favorite text editor and copy the following code:
#Sample ndiswrapper script - By: Derrick Rose
#Load ndiswrapper module
echo "Starting Ndiswrapper Driver..."
/sbin/modprobe ndiswrapper
#Setup Essid
echo "Setting up ESSID..."
iwconfig wlan0 essid "your essid here"
#Setup WEP Key if you have one
#Uncomment below for WEP
#echo "Setting up KEY..."
#iwconfig wlan0 key yourkeyhere
#Setting up DHCP on wlan0
echo "Starting DHCP on wlan0 [ 10 sec timeout ]"
dhcpcd -t 10 wlan0

- the script above will setup your wireless card for. Now save this to a file in roots directory (/root) called wireless
- "chmod +x wireless"
- to run manually type "./wireless" as root
- If you want to automaticly load on startup do the following
- "cat wireless >> /etc/rc.d/rc.local"
restart the computer..adn then check

vedhick.....

Jan 08, 2009 | Linksys (WMP54GS) 802.11g/b Wireless...

2 Answers

What can i do with the Linux


you can do everything what you do with the windows ...

but working with the linux is more complicated than windows ...

any user can use the windows as windows is the user friendly operating system ...

but linux is not so much easy like windows so even the computer experts who are very good in computer with the more knowledge in windows cant work with the LINUX ..

the person who receives the basic training or persist the basic knowledge he only can work with the linux ...

working with LINUX is very different from windows...

so only the LINUX didnt became so much popular like windows as the normal user cant work with it ..

anybody can get the source code of the LINUX and improve it ...
so only it is called as open source as the source code of it is available for free in online ...

thank you
bye
any doubts you can reply me
i am always here to assist you
please rate my solution


Aug 19, 2008 | Microsoft Windows Server Standard 2003 for...

2 Answers

What is the importance of Linux


Linux is an open source free software. If you got a copy of the linux OS, you can install and use it without any fear, unlike windows. Most of the linux OS like Redhat, Fedora, Obundu etc. are feature rich. For more information, visit any linux site and read on.

thank you

Aug 19, 2008 | Microsoft Windows Server Standard 2003 for...

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