Fedora Servers :: DHCP Server - Custom Options Not Working
Apr 8, 2010
I am trying to get custom options to work.
This is my Dhcpd.conf file
This shows that I have 3 custom option in RED.
Now when I try to pull an Ip from the 96.63.0.0/24 subnet I do not see the options in the DHCPACK from the server. The client gets an IP 96.63.0.12 but no options are present in the DHCPACK or any other DHCP transaction. I have confirmed this trhough tcpdumps on the server and client.
The server version I am using is:
The version of the DHCP server is :
Internet Systems Consortium DHCP Server V3.0.6-Fedora
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Aug 4, 2010
I have an embedded device for which I've created an html configuration page. This page allows you to set static IPs, dhcp, and can scan for wireless devices.My problem is that in order to access the device it requires that it runs as a dhcp server otherwise people are not assigned an IP and so can not access the embedded devices static IP. (This config page is for the laymen and so they are not the type who are able to set up their own static IPs). One of the potential options is to have the device connect to the network on eth0 acting as a dhcp client. However this prevents me from running a dhcp server.One solution I can think of is running a dhcp server only if it doesn't detect another dhcp server running on the network.
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Aug 1, 2009
I have a small office setup all on public ips and was trying to work out the best way to move the wearhouse computers on to private ips and leave offices on public ips I have server with 2 nics and i have two switches What i am after is how to set it up so all computers can still see each other but private can not access net All the office computers via switch 1 Public IPs All the wearhouse computers via switch 2 Private IPs
1 DHCP server
3 Routers from ISPs going to switch one
Both switches going to DHCP Server
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Aug 3, 2009
How to configure DHCP server on Fedora?Is there any package available on Fedora 11 ?
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Dec 29, 2009
In my instructions for LAN boot, I am up to the next step :"You need the DHCP server software. If your distribution has none then you can use dhcp-3.1.3 and compile it."ok, so in F11 Live USB . . . I have downloaded and extracted files - they are still in Download directory . . .
Code:
[root@localhost Download]# dir
dhcp-3.1.3 dhcp-3.1.3.tar.gz
[code]....
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Jul 14, 2011
I am trying to set up a DHCP server for a network that does not go on the Internet using fedora 14. I have tried several site and every one I look at has a different dhcpd.conf file. I have tried many and every time I try to start the service they fail. Like I said it does not go on the Internet. No matter what I do when I try to start the dhcpd service it fails code...
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Apr 1, 2011
I'm curious if anybody can shed some light for me in this department. We're in a large environment with a Windows DHCP Server. We have been tinkering with LTSP on Edubuntu as thin and fat clients. It works great, but right now we just have 1 server handling the lab, which works fine unless we want to expand, which may be very possible.
These are the instructions I received:
Login to your windows server and load the DHCP configuration screen
Create a DHCP reservation for the MAC address you obtained
Add the configuration options below to enable the machine to boot from the LTSP server
017 Root Path: /opt/ltsp/i386
066 Boot Server Host Name: <ip address>
067 Bootfile Name: ltsp/arch/pxelinux.0 # Specify CPU architecture in place of 'arch', for instance 'i386'
From: [url]
I'm curious, what if I want to have multiple Ubuntu servers on the network that I want to have bootable? For example, let's say I have 3 labs, and 3 servers. Server A to Lab A, Server B to Lab B, and Server C to Lab C. I want all C's computers to boot to C, and B to B, A to A, etc.
1 - How would I add multiple entries on the Windows DHCP Server to allow all 3 (A B C) servers to boot?
2 - How would I be able to isolate the clients so ONLY Lab A clients boot to Server A, etc?
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Jun 11, 2010
I have been rtying for a couple of days now to set up a local dns/dhcp server with dnsmasq on a ubunut server 10.04 I followed the basic instructions from several websites, starting with the ubuntu community one, didnt work, then tried some other, and nothing.
In the server the dns works, i test with dig example.com and i can see the time difference, so dns is working. so the problem is not making the dns work but to make the server listen for dns and dhcp resquests and respond to them.
I have desactivated the dhcp from the router so thats not the problem. making a windows box ping the server works, so the network is configured correctly.
dnsmaq is listed as "LISTEN" on netstat, i read in some blog that it should be using ports 67 and 68 but those are no listed, neither i configured them in any moments, none of the instructions i followed mentioned sth about that. i even tried configuring the window box with the ips and dns accordingly and that wouldnt work either.
so in conclusin i have dnsmasq that does have dns set up but wont answer to any requests of either DNS nor DHCP.
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Apr 28, 2010
I'm trying to build a Fedora 12 cluster to run DHCP on top of two servers using pacemaker and drbd. The pacemaker runs great but i'm having the hardest time getting DRBD installed.
My kernel version is 2.6.32.11-99.fc12.i686.PAE First i tried to [root@dhcp-primary drbd]#yum install drbd this doesn't give me everything because apparently the kernel module for DRBD must be built from source. so i unpacked drbd-8.3.6.tar.gz and tried :
[Code]...
I'm not very experienced in compiling from source i'd love to make an rpm for this but after scouring the web and trying different install methods, I am still at a loss.
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Dec 2, 2010
I'm no expert on DHCP. My problem is that i have a CentOS 5.5 server on which i want to install a DHCP server. I have two NICs where eth0 has access to the internet and where eth1 should act as an DHCP server.
I have installed dhcpd and this is how my dhcpd.conf file looks like.
Code:
ifconfig looks like this
Code:
When i start dhcpd on eth1 i get no error messages but when i connect any devices to eth1 they don't get any IP. I cant find anything in any logs about devices trying to get an IP address. I dont have any firewall rules in iptables.
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Jul 17, 2009
I have a strange problem for internet. My clients (winxp - S2) can't get internet.Let me explain my scenerios. Fedora 10 with lan (eth0) having direct internet from dsl model, client (XP service pack 2) can use samba shares using dhcp (wlan0) installed in Fedora 10 box. client can ping my linux box.Now problem is: client (dosbox) can ping the google ip address (i.e ping 74.125.39.106) but can't use 'ping www.google.com'. That means ping with ip works for internet from my client. My linux box can. I can use internet from FC10 but can't use iexplorer from my client to have internet. I have enable ipmasquarding in Firewall and dhcpd is running on wlan0 for dynamic ip address of my clients.Can someone suggest me what kind of problem having I? What should i do to success iexplorer for internet? what possibly am i missing?
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Feb 24, 2010
In our apache web server, we have a number of virtual hosts running. I wanted to create an alias to a folder only to a specific virtual host. So what I did is, in the virtual host configuration section of that specific site, I added as below:
[Code]..
However, with this configuration,if index.html is not present in the system , I am still able to see directory listing of all files under that folder myfiles. What could be going wrong ? Why "options" directive of is not working once it is placed inside <directory > of <virtualhost>? If I move <directory> in the main httpd.conf (ie , outside virtual host section), then again it works fine. But I don't want this as I don't want other virtual hosts also to be able to access to that directory... In the main httpd.conf, I have something like
[Code]....
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May 30, 2011
Ive tried on multiple occasions to setup a dhcp server, but all the google searches return legitimate results it seems, and ill set everything up, except the last few instructions i have to configure /etc/dhcp3/dhcpd.conf and /etc/default/dhcp3-server, but ubuntu says its not there.Im running Ubuntu Server 11.04 and using nano to edit files
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Jan 20, 2010
Can list options available for server redundancy? (i.e. fault tolerance methods so that if a server goes down another server can take over). Also is it possible to implement RAID1/disk mirroring across servers?
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Apr 13, 2010
I configuring samba under Fedora 12, i just set in samba dialog Server Settings->Security and choose guest account: apache. The account is exist io the Samba Server, now i try to login from Windows to Linux share, server asks me login and password, however when i set apache as login and not set password, server asks me login again as the password is incorrect. As i understand under guest acount can login any windows user without the password.
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Dec 30, 2010
I have a ClarkConnect (CentOS based) box running as my home router on a RR connection. I had the DNS servers set up to use Google's DNS server. I want to change them back to the local DNS servers but I can't find an obvious/easy way to get those address short of a) reconfiguring the router's network to DHCP them (would rather not interrupt everyone) or b) calling their tech support (kill me now!). Is there a command line tool/command I can use to query the DHCP server on the external NIC to see what DNS servers it would set me up with w/o munging my existing setup?
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Sep 29, 2010
i have a lucid server box running a dhcp server and webmin.i want to bridge openvpn to the network that the dhcp server serves.all the configurations ive seen, id essentially have to install openvpn onto a computer underneath the dhcp server to accomplish this.
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Feb 23, 2010
I've tried to configure DRBL server to use Clonezilla and that is required me to setup DHCP, TFTP servers.But I've gotten a lot of errors from them - so please look at my attachments from /var/log/messages and dhcpd.conf - help me to find out what are wrong with them.
[Code]...
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Oct 31, 2010
I have an embedded device for which I've created an html configuration page. This page allows you to set static IPs, dhcp, and can scan for wireless devices. My problem is that in order to access the device it requires that it runs as a dhcp server otherwise people are not assigned an IP and so can not access the embedded devices static IP. (This config page is for the laymen and so they are not the type who are able to set up their own static IPs). One of the potential options is to have the device connect to the network on eth0 acting as a dhcp client. However this prevents me from running a dhcp server. One solution I can think of is running a dhcp server only if it doesn't detect another dhcp server running on the network. However I have no idea how this could be setup.
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Apr 7, 2010
I am contemplating the use of DHCP options as a way of passing host-specific information to hosts that are booting disklessly from a network server. My intention is to have the DHCP client request certain options, and use the reply to configure the diskless hosts accordingly. The theory and rules behind all of this seem well documented on web sites such as die.net. However, the practical application of the protocol seems to be a lot less clear. What I am looking for is an explanation of what (existing, I hope) tool(s) are used, and how they are applied so that I can grab information from the DHCP server, and use it in userspace scripts or other programs. Specifically, my intention is to use a locally defined option that would give a host-specific directory name or filesystem to use by the diskless host to obtain host-specific applications and configuration data.
So far, all of the DHCP client documentation I've found relates to the usual function of assigning IPs, etc. I've looked at dhclient-script on a Redhat system and can't figure out the relationship between it and the dhclient program. Clearly, the script is invoked somehow by dhclient, but I don't understand where the transfer of data received from the server gets into the script. Does dhclient just create a list of exported environment variables the child script then gets access too? What are the rules for how variables are created and what variables are created?
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Oct 18, 2010
I am using Ubuntu on a memory stick and it is loading Casper.
When loading it ask for the language that you prefer and then loads.
I would like to have be default to english and boot straight into Ubuntu live.
Also posted another issue that I was having to where when it boots, is displays this:
PHP Code:
And hangs for about a minute and them boots.
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Aug 1, 2011
After a fresh install of Ubuntu 11.04 (from 10.04) and spending several hours trying to figure out why the ad-hoc connection between my two computers (Fedora14 <-> Ubuntu 11.04) no longer worked - it had worked fine for almost 2 years with 10.04 - I've finally concluded it was a DHCP problem. This realisation (which was slow in coming!) dawned on me when I reversed my setup and configured the Fedora box as the DHCP server and everything was suddenly working perfectly! A quick internet search threw up an installation file called "isc-dhcp-server" which other Ubuntu 11.04 - related forums are also complaining about. My problem is that this file, although available in the repository, is not even installed!!!
It seems unlikely that the developers forgot to include DHCP support, so I hope someone can point me in the right direction.
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Apr 13, 2010
I am using Fedora 12. I have the following problem, when i working with system-config-samba dialog:I add the new user on the server:as following:
Unix username: vova
Windows username:test
As described in Customisation Guide for Red Hat 9: "If the user has a different username on a Windows machine and will be logging into the Samba serverfrom the Windows machine, specify that Windows username in the Windows Username field."So i logged from the Windows machine not under test(Windows username) but under vova.And i logged in without the problem. However it seems that samba should check windows username=test (as have written in samba-config) and ask an password for different users. And additionally, if samba check the currect user in Windows itself and verify it with Unix user, what for we need write the Windows username in samba config? I don't understand
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Apr 4, 2010
I'm establishing a server that runs DHCP server, NAT gateway and VPN server. It have two physical interfaces, one for intranet and one for internet. The NAT gateway will give internet access for intranet. Another site will connect to this server by VPN. I need the server to assign a different subnet for that site other than the local site. Do anyone know how to config the DHCP server? Should I config the client classing, and how to do it?
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Apr 6, 2010
Does anyone have a link to a tutorial on how to set up a DHCP server and SAMBA as a windows domain controller? I can't really find good detailed guides by searching google.
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Feb 14, 2011
turn up the level of logging that my DHCP Server is writing to SYSLOG?I can't seem to find a syslog.conf file to edit.
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Sep 6, 2009
here s what i did :
# yum install dhcp
#gedit /etc/dhcpd.conf
#service dhcp restart
Starting DHCP
[Code]...
what am i missing ? , and how can i be sure if the Dhcp server is working exactly what i want
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Feb 5, 2010
DHCP server on F12 wont to start, recieving "semicolon expected." errors everytime
have to start in on eth0 alias
my /etc/dhcp/dhcpd.conf
============================
DHCPARGS="eth0:0"
ddns-update-style interim;
ignore client-updates;
[Code]....
if i comment firts 3 lines, than semicolon expected." errors will point again from next uncomented line.
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Aug 17, 2010
have f13 runing and finished configuring dhcp. but i tried to start the service using '/etc/init.d/dhcpd restart and service dhcpd start', i failed in return. pls what could be responsible? tried starting the service but still failed. could anything be stopping it?output from /var/log/messages says;
line 1: this version of ISC DHCP is based on the release available
line 2: features have been added and other changes
line 3: have been made to the base software release in order to make
line 4: it work better with this distribution
line 5: please report for this software via the RedHat Bugzilla site:
line 6: http://bugzilla.redhat.com
line 7: exiting.
those are the reports from the log.
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Feb 11, 2011
I have several hosts running either TinyCore or Oracle Enterprise Linux that are using DHCP to get their IP addresses and other network configuration.I'd like to use DHCP to pass in some other information, but I don't know how to get DHCP options, including custom options, in a CLI script.
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