How do I install DHCP on my Linux Server?

unless you really need to flexibility and power of a true blue dhcp server, try udhcpd. just google for it. its small and fairly stable for what its built for.

kjteoh

I want to know whether dhcp works across VLAN.
Or in each VLAN , we need to install individual DHCP Server.

We're getting a bit out of my depths, but as far as I understand, you'd need a different DHCP server on each LAN segment.

You don't need a DHCP server per VLAN. You will need to configure the L3 switch or router to forward IP broadcasts - Cisco uses IP helper command. When the router forwards the DHCP request it will "tell" the DHCP server from which subnet the request came. Your DHCP will then (if it supports it) allocate an appropriate IP address (ie one from that subnet). Some DHCP servers will only allocate addresses from their own subnet (in which case it won't work).

For different vlans how can i set up my dhcp server so that my client in diff.vlans get ip from dhcp server.
Any one help me
i am highly appreciated.

hello Suport, now i have dhcp server but that is very old now i want migrate this in new one , please guide me how can i take the backup of old ane restor same in new also let me know what configuration is require for dhcp installation in linux box.

i have downloaded the .tar, unpacked it, ./configure-make, are the commands i have done so far. but i have this lines after the make command

cc -g -I/root/dhcp-3.0.6 -I/root/dhcp-3.0.6/includes -DLINUX_MAJOR=2 -DLINUX_MINOR=4 -c -o raw.o raw.c
make[2]: cc: Command not found
make[2]: *** [raw.o] Error 127
make[2]: Leaving directory `/root/dhcp-3.0.6/work.linux-2.2/common'
make[1]: *** [all] Error 1
make[1]: Leaving directory `/root/dhcp-3.0.6/work.linux-2.2'
make: *** [all] Error 2

In version 3.0.6 you must issue the commands at the top of this page in this order. (3 seperate commands)

./configure
make
make install

Then continue like normal ...

i have a Intel P4 Pc with 945/946 intel motherboard and SATA HDD. How I can install RHEL 4 or Fedora core 5. How I can creat VPN, DHCP, DNS server in RHEL4/Fedora core 5.

Where do i find the DHCp after its installed?

I saw the post above that gets an error after make but can't find the resolution.
I do ./configure, then make and get the error, and get the same error after make install:
[root@server2 dhcp-3.0.3]# sudo make install
make[1]: Entering directory `/root/dhcp-3.0.3/work.linux-2.2'
Installing in common
make[2]: Entering directory `/root/dhcp-3.0.3/work.linux-2.2/common'
cc -g -I/root/dhcp-3.0.3 -I/root/dhcp-3.0.3/includes -DLINUX_MAJOR=2 -DLINUX_MINOR=6 -c -o raw.o raw.c
make[2]: cc: Command not found
make[2]: *** [raw.o] Error 127
make[2]: Leaving directory `/root/dhcp-3.0.3/work.linux-2.2/common'
make[1]: *** [install] Error 1
make[1]: Leaving directory `/root/dhcp-3.0.3/work.linux-2.2'
make: *** [install] Error 2

it worked after i installed the gcc compiler.

a litle tutorial to how to configure DHCP

dhcp

The error output is from make - it means that a compiler - 'cc' - isn't in your path. So installing gcc will fix this.

You can check compilation/setup options by entering

./configure --help

before actually configuring the package. If you for example want to install it somewhere other than /usr/local you need to set it in the configure line like so

./configure --prefix=/folder/to/install/into

If running some other unix rather than linux be sure to install and use gnu 'make' rather than the system supplied one (the same goes for 'tar')

Hi Dev,

How can i configure a DHCPD IN FEDORA 5 AND THE FTP SERVICE..

Regards,
Roshan Costa

Dear Dev,

How to configure vsftpd in fedora 5

Regards,
Roshan costa

supposed help to others when it is INCOMPLETE is really frustrating. How the hell does one find where the output to the tar command went? Without knowing this, installing dhcp server is IMPOSSIBLE.

from a frusterated biginner.

noname, tar archives unpack in the current directory, either spewing their files everywhere in the current directory or, ideally, creating a subdirectory of their own with all the files therein. In this case, look for a new subdirectory called "dhcp-303" or similar.

This is pretty helpful. I've configured my DHCP, but I have a (maybe stupid) question...

I'm using a Linksys WRT54G router as my switch. What physical connection do I have to make between the DHCP and the switch in order to get my server functioning? Do I just attach it to the stanard ports?

Please post me

how can i install fedora 9 server on sunfire x4200,x2200 amd server

with firewall,squid proxy,email server

I am unable to get dhcp to start on Fedora 8, I have the config file for dhcp, but it does not show up on the enable list for the firewall, would that be the reason that it will not start through the terminal?

i check this tips but its all not working on my linu red hat fedora core 7
if anybody can help me for this that how i can install yum on linux red hat fedora core 7

thanx

A working configuration example

Server ip : 172.27.0.10
Swtich ip / gateway ip of server : 172.27.0.100
Option domain –name servers : 172.27.0.6

Please note default vlan 172.27.0.x in this case

Switch and server need to be in default lan for communication / or else we need to trunk in case other vlan connected , we need to configure vconfig on server to communicate

For biggner I would recommend to go for the default vlan connectivity

Example :

ddns-update-style interim;
ignore client-updates;
default-lease-time 43200;
max-lease-time 43200;
authoritative;

#-----subnet mask-- broadcast-- gateway-#

option subnet-mask 255.255.255.0;
#option broadcast-address 192.168.1.1;
option routers 172.27.0.100;
option domain-name-servers 172.27.0.6;

# ----------- Server Scope and vlan1 with switches and server--------------#
subnet 172.27.0.0 netmask 255.255.255.0 {
#range 172.27.0.0 172.27.0.50;
option routers 172.27.0.1;
#option subnet-mask 255.255.255.0;
option broadcast-address 172.27.0.255;
#option domain-name-servers 172.27.0.5;
}

# ----------- clients1 Scope-vlan2-------------#
subnet 172.27.1.0 netmask 255.255.255.0 {
range 172.27.1.3 172.27.1.200;
option routers 172.27.1.1;
option subnet-mask 255.255.255.0;
option broadcast-address 172.27.1.255;
#option domain-name-servers 192.168.1.1 #
}

Save the file

Chkconfig –list dhcpd on
{ For enabling the service on all run levels }
Service dhcpd start
In case , dhcp server faild to start , check with log messages

/var/log/messages

Check for the ip helper address in layer 3 swtich , which act as dhcp-relay
Which has to be configured as 172.27.0.10

Troubleshooting Dhcp server start up error :

1) Run the Dhcp service in debug mode
2) Check the ip configuration
3) Check for syntax errors in dhcpd.conf file
4) Check for the right location of the dhcpd file
5) Ping test between the switch and server
6) Possible conflict of other dhcp server may be the issue

dhcpd in the foreground in debug mode with /usr/sbin/dhcpd -d –f

Hopefully, a DHCP server like the one we’ll be configuring will respond. Running tcpdump shows a dhcp request looks like:
17:26:02.003956 00:00:00:00:00:00 > ff:ff:ff:ff:ff:ff, ethertype IPv4 (0×0800), length 342: 0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request, length 300
You should notice DHCP running in the process (ps) list. Any problems, check syslog

Congratulations you have finally configured In easy steps

how to install dhcp in fedora 13.

error in this step :

sudo touch /var/lib/dhcp/dhcp.leases

i got error please help how to solve this problem

touch: cannot touch `/var/lib/dhcp/dhcp.leases': No such file or directory
pls give me solution for this problem

thank u..........
by KS