Iface INTERFACE inet dhcp For example, to configure the eth0 interface as a DHCP client, we would add the following configuration: The system should now request network parameters from the DHCP server when booting. DHCP offers several benefits that you can't get from storing network configuration information in local files. Learn the best practices for a successful Linux-based DHCP server and DHCP client. Hi There, I'm trying to get a Red Hat 7.3 machine to dynamically register itself in a DNS server. I'm using DHCP to get my IP Address, and the DNS Server is running on a Windows box. DHCP offers several benefits that you can't get from storing network configuration information in local files. Learn the best practices for a successful Linux-based DHCP server and DHCP client configuration and deployment.
Hi all,
I have a networking question I can’t seem to find a solution for in previous posts. I have a box that is both my DNS and a DHCP server on my LAN, I’m running Bind 9 on a Fedora 4 box. This works great for Windows clients, they get their leases and the hostname is added to my DNS. However, I can’t get my Linux clients to send their hostnames. When I ping my Windows machines from another Windows machine by hostname I can find the host. When I try to ping a windows machine from a Linux client, it can’t find any windows machines, nor can I find any other Linux clients. It seems that Linux is not resolving from the DNS server correctly, as well as not sending the hostname when DHCP acquires a lease. All my
/etc/resolv.conf files contain only
search nine.homelinux.com
nameserver 10.0.0.1
and my DHCP domain is “nine.homelinux.com” and I’ve set up all my clients to have hostnames like “foo.nine.homelinux.com”.
Can anyone advise me on how to correct this? My DNS/DHCP server’s IP is 10.0.0.1, if I manually set my IP and DNS hostname, I still don’t get any other hosts on Linux clients.
This is a more general question than an OS specific, but I’m currently running Cent OS on my clients. I acquired 3 used boxes from work, and I’ve installed VMWare Server so I can use my finite number of boxes to satisfy my curiosity with a numerous number of distributions. . I would like to get my Linux DHCP clients to automatically update. This way I can just install any new distro in VMWare, and I don’t have to manually keep track of the IPs and add them to my Bind configuration.
Thanks,
Todd
I have a networking question I can’t seem to find a solution for in previous posts. I have a box that is both my DNS and a DHCP server on my LAN, I’m running Bind 9 on a Fedora 4 box. This works great for Windows clients, they get their leases and the hostname is added to my DNS. However, I can’t get my Linux clients to send their hostnames. When I ping my Windows machines from another Windows machine by hostname I can find the host. When I try to ping a windows machine from a Linux client, it can’t find any windows machines, nor can I find any other Linux clients. It seems that Linux is not resolving from the DNS server correctly, as well as not sending the hostname when DHCP acquires a lease. All my
/etc/resolv.conf files contain only
search nine.homelinux.com
nameserver 10.0.0.1
and my DHCP domain is “nine.homelinux.com” and I’ve set up all my clients to have hostnames like “foo.nine.homelinux.com”.
Can anyone advise me on how to correct this? My DNS/DHCP server’s IP is 10.0.0.1, if I manually set my IP and DNS hostname, I still don’t get any other hosts on Linux clients.
This is a more general question than an OS specific, but I’m currently running Cent OS on my clients. I acquired 3 used boxes from work, and I’ve installed VMWare Server so I can use my finite number of boxes to satisfy my curiosity with a numerous number of distributions. . I would like to get my Linux DHCP clients to automatically update. This way I can just install any new distro in VMWare, and I don’t have to manually keep track of the IPs and add them to my Bind configuration.
Thanks,
Todd
How to get NET_HOSTNAME for ThinStation client registered in DNS/DHCP. How can I make the hostname get registered in DNS and DHCP? I do have the 'NET_HOSTNAME' set in my Thinstation.Conf.Buildtime file, but all it is doing is setting the local hostname (ThnStn_MAC). Select the “DNS” tab. Configure it as shown below by selecting “Dynamically update DNS A and PTR records for DHCP clients that do not request updates (for example, clients running Windows NT 4.0)”.
![Set Set](/uploads/1/2/6/0/126011271/462650873.jpg)
Active1 year, 9 months ago
I am looking for information on how to configure dhcpd so that it will send updates to BIND. I can see that for BIND, I need to set the
allow-update
option, but I do not know how to configure dhcpd.I have found example configurations for dhclient to register itself, but I am only interested in dhcpd doing the registering. I want to be able to set the hostname on a client, reboot it, and then its hostname will be registered in BIND via dhcpd.
Does anyone have any info on this?
AceAce
1 Answer
You'll need to tell dhcpd that it needs to perform dynamic DNS updates. To do that, add this to your dhcpd.conf file:
In order to be secure, you can set up a key authentication between dhcpd and BIND. The key file can be included in both dhcpd and BIND configuration files. The key file should look like this:
Your BIND installation may include a 'ddns-confgen' tool that can help you in generating the key file.
Then you can add DNS zone declarations to your dhcpd.conf file. They specify which DNS server(s) the updates should be sent to, and optionally the key to be used:
Note that the final dot in zone names is required in dhcpd.conf.
How To Set Dns
![Linux dhcp set dns for client mac username Linux dhcp set dns for client mac username](/uploads/1/2/6/0/126011271/435141013.jpg)
In the BIND configuration file (typically named.conf), you'll need something like the following:
The 'update-optimization off' setting makes dhcpd always send an update request for BIND, which is useful for testing. Once you're satisfied that your setup works, you can turn update-optimization on: that way dhcpd will only send an update if the DNS records actually need changing. If they already have the required values, no updates will be sent.
Set Dns For Windows
The 'update-conflict-detection off' setting can be useful if you have systems with e.g. both wireless and wired connections, and you occasionally switch between the two. This allows a new record with the same hostname to override the old one, even if the MAC address of the client's network interface is not the same. (With laptops, a wireless connection is generally more convenient, but for large downloads I prefer the better throughput of a wired connection.)
telcoMtelcoMLinux Dhcp Set Dns For Client Mac Username
27.1k11 gold badge3030 silver badges7272 bronze badges