Dhcp3 not updating bind9
I have a small network setup and I cannot get DNS to work.
First, in the global portion: requests an address via dhcp, the dhcp server will tell the dns server.If you also want the DHCP server to handle all dynamic updates, add these statements: statements telling the DHCP server the domain names of the zones it will update, and for each of these, the address of the name server to send updates to and the TSIG key to sign those updates with. Configuring your nameserver for dynamic updates for DHCP hosts is a common task, but the online documentation is a bit outdated and incorrect in many ways. A basic DNS configuration will look like this: It’s very important that your zone files are in /var/cache/bind/, otherwise App Armor will deny the write permissions to named and the daemon will not update the zones. ( 2012070901 ; serial 3600 ; refresh (1 hour) 1800 ; retry (30 minutes) 604800 ; expire (1 week) 7200 ; minimum (2 hours) ) NS gw. $TTL 3600 ; 1 hour dns A 192.168.0.2 gateway A 192.168.0.2 gw A 192.168.0.2 ns A 192.168.0.2 $ORIGIN . I had a SERVFAIL error due to App Armor denying write permissions on zone files (you should not see this).We kept the default for this file and related files (db.root, db.local, db.127, db.0, db.255) $ORIGIN . ( 2012050804 ; serial 604800 ; refresh (1 week) 86400 ; retry (1 day) 2419200 ; expire (4 weeks) 604800 ; minimum (1 week) ) NS gw. I had a NOTZONE error first, because I was using instead of 0.168.192.as the zone for the PTR record.The bind9 is configured to allow dynamic updates and DNS works like expected. :-) Looking forward to hearing from you because this makes me crazy. Checked with my contacts and they let me know that option 81 is not supported on this switch.
Manually by using NSUPDATE I can make dynamic updates to the bind9 zones from my DHCP clients. I want that the SG300 DHCP Server makes the dynamic updates to the DNS zones. Since the client sends to the server on how to update DNS records, the switch does not support this dynamic configuration.
This is the network configuration of our DHCP/DNS server we are using for our tutorial Hostname : router.static.WAN interface (eth0) : 192.1 mask 255.255.255.0 LAN interface (eth1) : 1.254 mask 255.255.0.0 Default gateway : 192.168.99.1 First, we need to tell the DHCP server to only run on eth1 you need to edit the /etc/default/dhcp3-server file using the following command #vi /etc/default/dhcp3-server enter the following line save and exit file. ( 200806327 ; serial 28800 ; refresh (8 hours) 7200 ; retry (2 hours) 2419200 ; expire (4 weeks) 86400 ; minimum (1 day) ) NS ns.static. server A 1.253 router A 1.254 ns A 1.254 ntp CNAME router.static.
Configuring DHCP Server Configuration /etc/dhcp3/: This is the DHCP server configuration.
This article will cover how to setup dns with dynamic updates aswell as configuring your dhcp server to push updates to it aswell. If there's anything this article doesn't cover with respect to what you are looking for, leave a comment and I'll do what I can.
I assume you already know how to setup plain old dns aswell as plain old dhcp. Dynamic DNS is the means by which to push new records into your dns server while it is running, without having to edit any zone files.
Hi Community, my SG300 is configured in L3 Mode in my Homelab and the DHCP Server feature is enabled. As DNS Server I've configured a bind9 server under raspbian wheezy. I was trying to configure this in my lab and was getting unexpected GUI input results that did not affect the packets at all.