Is there any way to associate a group to subnet in dhcpd.conf? I want hosts in a specific group to be locked to an IP range defined in subnet. Something like this:
Code:
authoritative;
ddns-update-style ad-hoc;
subnet 192.168.0.0 netmask 255.255.255.0 {
range 192.168.0.1 192.168.0.100;
option blah1;
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I have a RHEL 5 64bits installed on a virtual server. I set up a a dhcpd server for one subnet last week and I have a strange behavior : the IPs are provided in a decreasing order. What's the? So I have tried to exchange range values but the result remains the same.
Package version installed :
yum info dhcp
Installed Packages
Name : dhcp
Arch : x86_64
Epoch : 12
Version : 3.0.5
Release : 23.el5_6.4
Size : 2.2 M
Repo : installed
Summary : DHCP (Dynamic Host Configuration Protocol) server and relay agent
License : distributable
Here's the dhcpd.conf :
ddns-update-style none;
#autorisation du pxe
allow bootp;
allow booting;
authoritative;
log-facility local7; .....
While configuring dhcpd.conf on centos 4 I couldn't find option to reserve that ip addresses. I have subnet of 10.0.0.0 network of which i want reserve 1 - 50 addresses for my servers. I'll assign static ips to my servers & printers.
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# /etc/init.d/dhcpd.conf -bash: /etc/init.d/dhcpd.conf: No such file or directory what is the problem? and how to configure out "joe"
View 5 Replies View RelatedI installed dhcpd using:
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Now when I try to run it, I get this weird error:
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The error was:
I changed permissions to 777:
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To no avail!
It's got something to do with AppArmor.
I don't think it is installed on this system:
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I have a router with ddwrt on it that runs a DHCP server. What I want to do is only allow people who have pre-determined MAC addresses to get an address to get on my network. That being said I have a VM set up as a DHCP Server. Since doing this I will be setting the dhcp settings on my router to be a forwarder to the VM. Is there a way to allow only static leases in the dhcpd.conf file? I do not just any computer on my network to get an address I want to base it on MAC addresses.
View 4 Replies View Relatedver: 9.10 how do I restart dhcp3 after changing dhcpd.conf?
View 3 Replies View RelatedIs it possible to add two "filename" and "next-server" entries in /etc/dhcpd.conf in rhel5.0?
View 3 Replies View RelatedI am going to configure squid in my linux box.I have different kinds of ranges in my office.The default is as under
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acl our_networks src 192.168.1.0/24 192.168.2.0/24
http_access allow our_networks
can I add my own ranges as
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acl our_networks src 10.1.60.0/24 10.1.70.0/24 10.0.80.0/24 10.1.90.0/24 10.1.100.0./24
http_access allow our_networks we have divided according to floors ,like 1st floor ip range is 10.1.60.0 2nd floor 10.1.70.0 ,third 10.1.80.0 and so on. All IP ping each others successfully.
i have installed dhcp server on RHEL5.after instalation when i want to restart it.it shows failed message. rpm package is also installed.(dhcp-3.0.5-13.el5) dhcpd.conf file is also in /etc directory
View 1 Replies View RelatedI've found a lot of pages of how to fix the issue on older releases of dhcpd and ubuntu.
#>dhcpd
#> ...
#> Can't create PID file /var/run/dhcpd.pid: Permission denied.
I have tried creating the file and giving it permissions to be accessed, but that isn't solving the issue. I tried to go through some of the older fixes, and one was really close to working but lacked the same folders as I have.
EDIT: one solution that worked was to use ln -s /var/run/dhcp3-server/dhcpd.pid /var/run/dhcpd.pid dhcpd3 -cf /etc/dhcp3/dhcpd.conf at0
Ubuntu Server 9.10I want to set up my dhcp server to also be my DNS server so do I skip these lines or point them at the same server that the config file is on?
View 4 Replies View RelatedI've been scanning the apache2 docs for the past few days and have not come up with an answer my following issue:
In my httpd.conf file, at the very end, I have the line
Include conf/vhosts/vhost_*.conf
However, when I run apache checkconfig or try to start apache, it gives me the error:
httpd: Syntax error on line 993 of /etc/httpd/conf/httpd.conf: Could not open configuration file /etc/httpd/conf/vhosts/vhost_1.conf: Permission denied
It appears as if the Include line is correct - in terms of it grabbing the first virtual host conf file. However, I'm confused on the permissions. the /etc/httpd folder is owned by root:root, as are the subfolders. As a test, I chown'd the conf/vhost folder combination and all the vhost files to apache:apache to see if that made a difference, and it appeared to make no difference at all. The log files don't contain anything (assumed because apache isn't starting). If I place the contents of the vhosts in a singular vhosts.conf it works - with the permissions set to root:root. I'd like to avoid having to use one vhosts conf for the configuration I'm trying to achieve - as it would make my life a lot easier.
it appears i haven't quite grasped the meaning of dhcpd.conf despite the numerous tutorials i went through in the internet and the detailed read of dhcpd.conf that i did. what i basically want to put you in perspective, is to have all the pc's in my home network (desktops and laptops) regardless of any other settings, to send their computer name (hstname basically) to the dhcpd (during the handshake)... then the dhcpd will use that name as the hostname and append the known domain name, thus creating an entry (an A record and a PTR record) in BIND....
so say a laptop comes into wifi range of the domain "myhome.org."... i take it that during handshake, the laptop will send its hostname (i don't know what that will be for winXP and win7 dhcp clients, but i presume it will send the output of command 'hostname' for linux clients - or at least thats what i would like it to send....).say "nass-notebook" Then the server will append "myhome.org." and it will update the DNS with an entry looking like[URL].. corresponding to some ip address.
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I am trying to provide dynamic IP addresses for devices that are on a different VLAN (101). The server is currently providing 172.17.x.x/16 range for its own VLAN (417). My server is RHEL4 and DHCPD is version 3.0.1. The core switch (Cisco 3750) is configured with ip-helper on VLAN 101 interfacce. Here is my dhcpd.conf file:
authoritative;
ddns-update-style ad-hoc;
omapi-port 7911;
shared-network eth1
[code].....
However my laptop on the VLAN 101 keeps getting IP of 172.17.x.x/16 range..
I have setup a dhcpd server on my lan with the following option to reflect the static route to my private LAN.
dhcpd.conf
Code:
option static-routes 10.0.0.0 192.16.5.0
I've tested it on OpenSUSE, ArchLinux and even Windows dhcp clients and they've managed to pull the static route configuration. However, to my suprise on my ubuntu machines this doesn't seem to load. Is there anything that needs to be done on the client's side to get this to work?
Ive searched forums and read syslog dhcpd man pages, but cannot figure out how to completely disable dhcpd logging :S
View 6 Replies View RelatedI've a question about how work dhcpd. I'm on CentOS 5.6. I has a dhcpd server on it. His configuration:
authoritative;
ddns-update-style none;
deny declines;
deny bootp;
option domain-name "mydomain.domain";
option domain-name-servers IP;
option routers IP;
option time-offset -18000;
#option ntp-servers IP;
subnet IP netmask MASK {
range IP START IP END ;
default-lease-time 86400;
max-lease-time 172800; }
And now in the /var/lib/dhcpd/dhcpd.lease file, there few entrie for the same IP. Sometime I've ten same entries for the same IP. Can I have only one entrie by IP? Is there any problems in my configuration of my dhcpd.conf file?
My Yum server gives error message while installing packages like rpmts_HdrformFdno: Header V3 DSA Signature: NOKEY, KEY, Key ID 37017186" Samba-3.0.33-3.7.el5.i386 rpm is not install.
But I can install other package like bind dhcpd etc.
I've been using dhcpd for address assignments to PCs for a very long time with no issues. I recently upgraded from lenny to squeeze and now dhcpd seems to have new behavior which I can't seem to change. Here's what I want to do. First, I have a simple situation and don't want to get involved with dynamic DNS updates. I have host statements for each of my PCs and a range statement for cases where I install a new device and don't yet have a host statement for it. Previously, I could discover the ethernet address for the new device from the dhcpd log and add a host statement with an address of my choosing for the new device.
I'd then restart dhcpd and do something like reboot the device or issue an ipconfig /renew statement on the new PC. What would happen is that the old dynamically assigned IP address would be NAKed and the device would do a DHCPDISCOVER, etc. and get the new IP address I specified in the dhcpd.conf host statement. In squeeze, this no longer works. The client asks for the old address it got dynamically and the server just says yes. I can't seem to find a way to get it to NAK the dynamic address and use the new address I've specified in the host statement. I'd appreciate any enlightenment on how this is now supposed to be done. Here's my simplified dhcpd.conf file:
authoritative;
log-facility daemon;
ddns-update-style none;
[code]....
Note that the address here was assigned based on a previous range statement and isn't consistent with the above config file.
I have a dhcpd server running CentOS and Webmin. I noticed in my lists of expired leases some of the lease times are only a few hours even thought I have lease length set to 1 week. I want to keep a lease for a week even if the device requests that it be expired. Is there some way I can do this in dhcpd? I am attaching a screenshot of some of my lease times listed in Webmin.
View 4 Replies View Relatedthis should be trivial for all you big sysadmin guys My box is a firewall/gateway. ETH0 is on the Internet-side, and is fully auto-configured (DHCP client) from my ISP. ETH1 is on the LAN-side, has DHCPD enabled, and I route the traffic to/from the Internet via iptables (NATting, of course). Everything works pretty good, except for the DNS-server assignment via DHCP: how can I configure dhcpd.conf to assign the SAME dns-server I receive from my provider on ETH0 to all my PC on ETH1?
View 8 Replies View RelatedI would like to make my Fedora 13 box a DHCP server for my network. I can not find dhcpd in YUM. Is there a way to make my Fedora box a dhcp server? This was relay easy with Suse, but my Opensuse box just suffered a hard drive failure.
View 1 Replies View Relatedget me understand the short range and the long range links from routing (and routing protocols') point of view.
View 6 Replies View RelatedI want to plot a set of data in only one plot.The problem is that some points of the data should be better plotted in a linear scale (lets say 0 to 100,000) but there are other data points that, exceding the value 100,000, would be better plotted in a logarithmic scale, as they goes in the range 100,000 to 500,000,000. Let's say the data is:
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X Y
0 100
10000 80
20000 75
[code]....
Is there a way to plot all these points in the same plot in only one X-axis showing two different ranges in that axis: linear: 0-100,000 logarithmic: 100,000 - 1,000,000,000?The axis would be read, for example, as:
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|-----|-----|-----|-----|-----|-----|-----|-----|-----|
0 20k 40k 60k 80k 100k 1M 10M 100M 1G
(The abbreviations k-M-G are not the important point. Just shown for clarity)
I am setting up LDAP server, i set slapd.conf(dc=proldap,dc=com) and start ldap it is OK but when i check using ldapsearch -x -b '' -s base '(objectclass=*)' namingContexts result is : namingContexts: dc=my-domain,dc=com
it seems that it did not use my slapd.conf so i tried removing my slapd.conf from /etc/openldap and start slapd again and it did start with no errors. and when i do ldapsearch again still uses dc=my-domain,dc=com
I tried searching about this in google and found no answers,
my reference in setting up ldap is the link below. but it seemed that it always uses another configuration not the one i modified
I'm using Fedora12, ldap version 2.4.19. i installed ldap by yum install url
url
I want to build a bash script, which can ping a range IP adresses which will be filled in by the admin. If there is no IP-adress filled in, then the script must ping the subnet where the system is logged on. So if my ip is 192.168.1.6, then the script must ping from 192.168.1.1 till 192.168.1.255 Or else, if there is given a beginning and ending ip it must ping that!
The first part of the bash script is to ping a given range (see below). But there is one problem, how can I tell the script to ping from $begin till $end, [..] is of course wrong! But what must be filled in there???
echo "Enter beginning IP-adres:"
read begin
echo "Enter ending IP-adres:"
read end
ping -c 1 $begin [..] $end
The second part is to find my own ip and ping the whole range.. How to do that? I only can find my own IP, but I cant ping the whole range,, how to do that?
#!/bin/bash
ifconfig | grep 'inet addr:' | grep -v '127.0.0.1' |
cut -d: -f2 | awk '{ print $1 }'
what happens if "#chkconfig --level 345 dhcpd on a network with existing DHCP server"
View 2 Replies View RelatedI hv Cent OS 5.3 installed as server. I hv a network of approx 100 desktops and laptops. For a security purpose i want to block certain laptops from gaining a the network access using dhcp. Can we block the ip address leasing if a specific MAC address request for a ip lease?
View 7 Replies View RelatedI have setup a CentOS 5.5 server as a DHCP server. That will be it's only task in a Cisco callmanger VoIP environment The DHCP server that comes with CentOS 5.5 is from ISC V3.0.5 -redhat.
The server (HP DL360) has two physical NIC's of which only NIC1 is used (ETH0)
ifconfig shows:
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The interface has a fixed IP setup.
My dhcp.conf file looks like this:
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When I start (try to) dhcpd via the service interface or via the prompt as
Code: service dhcpd start
I get an [FAILED] message and the following is in /var/log/messages
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But when I start the DHCPD on the comamnd prompt in debug mode it looks as follows:
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and /var/log/messages shows:
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Why does the system ask a declaration for eth0 0.0.0.0?