Changes in dhcpd.conf do not make a difference in DHCP service behaviour
Hi Experts,
Our DHCP server currently answers the DHCP Discover requests from ServerX. In our dhcpd.conf file there are parameters defined for ServerX.
Now we introduced some additional Servers into the network and want them to get service from the same DHCP server.
Similar configuration parameters as currently present for ServerX were added for the other Servers into the dhcpd.conf file.
The dhcpd process was restarted.
However, in the /var/log/messages, we could see the incoming DHCP Discover messages for the newly added servers but no OFFER for them.
Code:
Mar 7 11:18:05 trber dhcpd: DHCPDISCOVER from mac:mac:mac:mac via IP:IP:IP:IP:IP: unknown network segment
The system keeps sending OFFER for the ServerX only.
We rebooted the DHCP server. It is up and the result is still same.
For confirming that the dhcpd service could use the conf file properly, we removed the entries for ServerX in the dhcpd.conf file and restarted the dhcpd process.
Still DHCP server continue to OFFER for ServerX while there are no parameters for it in the conf file.
It makes me feel that dhcpd process is not interested in any change at dhcpd.conf file, even not use it.
How could it happen?
Our dhcpd.conf file stays in /etc directory : /etc/dhcpd.conf
In some server I could see the directory used is /etc/dhcp/ : /etc/dhcp/dhcpd.conf
Do you have any idea who dhcpd service does not use it's conf file?
Moderator's Comments:
Please use CODE tags as required by forum rules!
Last edited by RudiC; 03-07-2019 at 05:05 AM..
Reason: Added CODE tags.
I have intall a REdhat 9.0 as a server and Ive configure to act as a DHCP however Im having technical problems b/c the file /etc/dhcpd.conf does not exists. I went to the text edit and I created :
subnet 192.192.168.100.0 netmask 255.255.255.0 {
range 192.168.100.10 192.168.100.150;... (1 Reply)
Thanks for reply , i realy love using unix ... is there anyone who can give me an instruction to configure DHCP Server in Sun Solaris 10 just a quick guide .. i know how to configure DHCP Server in Windows operating System
..But i want also learn how to configure it from the SUN SOLARIS 10...... (6 Replies)
Hi,
I need to get a script together to edit the dhcp service configuration file dhcpd.conf.
Mac addresses are defined in classes ex.
class "HOST1" { match if substring (hardware, 1,18)=00:11:11:FF:FF:FF;}
class "HOST2" ...
class "HOST3" ...
...
followed by allow or deny statements:... (4 Replies)
Hi,
I've setup DHCP Server on RH linux AS3 and everything works fine except static routes. They are not getting effected on client systems.
My dhcpd.conf:
+++++++++++
ddns-update-style interim;
ddns-updates off;
option domain-name-servers 192.168.116.122;
option domain-name... (3 Replies)
I am trying to use sed to remove entries from my dhcpd.conf file.
The form of the file is:
host foo {
option 1
option 2
}
host bar {
option 1
option 2
}
I was trying to use a label like:
sed -e :a -e "s/^host bar {*//g;/{/N;//ba" /etc/dhcpd.conf... (2 Replies)
I am trying to configure my jumpstart server to install Solaris 10 on a T1000 machine(target) over WAN. I do not know the IP address of the client, i wish the client to get the IP address from DHCP.
how do i configure my /etc/netboot hierarchy. One option would be to keep the wanboot.conf in... (1 Reply)
Hi,
While installation of apache on linux, we perform the below tasks.
1) Untar
2) configure
3) make
4) make install.
I wanted to understand the difference and working of configure/make/make install.
Can any one help me understanding this?
Thanks in advance. (1 Reply)
Hi all,
I am too new for this stuff and i am lost in perl tutorials. I need help to change dhcp entries in .conf file with a perl script.
The file entries are like below :
host bertha-clp-0 {
hardware ethernet AA:0A:A0:00:6c:40;
fixed-address 10.10.10.72;
option... (6 Replies)
Hi,
I have to prepare a script to check the dhcp conf file. The script has to check for a specific parameter called circuit ID. If the Circuit ID is unique it should show the output that it is unique and if it is duplicate it should show that the Circuit ID is duplicate. I have prepared the... (4 Replies)
Hy everybody,
Within a dhcpd.conf file, we got some fixed IP adresses from 192.168.0.1 - 192.168.0.254.
Sample:
#ddns-update-style interim;
ddns-update-style none;
ignore client-updates;
deny client-updates;
authoritative;
#### By red for PXE Booting
allow booting;
allow bootp;
###... (17 Replies)
Discussion started by: hermouche
17 Replies
LEARN ABOUT DEBIAN
dhclient.leases
dhclient.leases(5) File Formats Manual dhclient.leases(5)NAME
dhclient.leases - DHCP client lease database
DESCRIPTION
The Internet Systems Consortium DHCP client keeps a persistent database of leases that it has acquired that are still valid. The database
is a free-form ASCII file containing one valid declaration per lease. If more than one declaration appears for a given lease, the last
one in the file is used. The file is written as a log, so this is not an unusual occurrence.
The format of the lease declarations is described in dhclient.conf(5).
FILES
DBDIR/dhclient.leases
SEE ALSO dhclient(8), dhcp-options(5), dhclient.conf(5), dhcpd(8), dhcpd.conf(5), RFC2132, RFC2131.
AUTHOR dhclient(8) was written by Ted Lemon under a contract with Vixie Labs. Funding for this project was provided by Internet Systems Consor-
tium. Information about Internet Systems Consortium can be found at https://www.isc.org.
dhclient.leases(5)
03-07-2019
