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// Make sure to increment the serial number of any file edited.
// Note, format of serial number is: YYYYMMDDNN where YYYY is year, // MM is month, DD is day, NN is update number for that day (i.e., 01, // 02, 03,...) // 3) rename db.wright.to match your domain name. // 5) If you changed the internal network IP from the Linux MCE default of // 192.168.80.0/24, then replace "192.168.80" with your network // ip and replace it's reverse "80.168.192" wity your network ip's // reverse. for information on the // structure of BIND configuration files in Debian, *BEFORE* you customize // this configuration file. Make sure to increment the serial // number of any file edited.
7) Edit /etc/bind/local and add the following # Change update style to interim ddns-update-style interim; ignore client-updates; #overwrite client configured FQDNs ddns-domainname "mydomain.local."; ddns-rev-domainname ""; key DHCP_UPDATER ; zone mydomain.local. The dns database files are now being rewritten by the bind service.
Always stop the bind service before making any changes to the database files, otherwise they might be overwritten by bind.
Frequent updates also put undo // load on the root name servers; they have enough to do as it is. // root-delegation-only exclude ; include "/etc/bind/local"; ; ; BIND data file for wright.local ; ref.
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.
( 200806341 ; serial 28800 ; refresh (8 hours) 7200 ; retry (2 hours) 2419200 ; expire (4 weeks) 86400 ; minimum (1 day) ) NS Let’s imagine the computer has received the IP 1.200 You should see on the server’s syslog that the DNS zones have been updated.
After a setup of Bind and DHCP, this section will let the DNS zone dynamically update when new DHCP clients get an IP lease.
You can put the DNS provided by your ISP there (or put the DNS from opendns.com) ### options ######### include "/etc/bind/rndc.key"; controls ; ### "static" zones ######### zone "static.example.org" ; zone "2.in-addr.arpa" ; ### dynamic zones (updated by DDNS) ######### zone "dyn.example.org" ; zone "2.in-addr.arpa" ; Now let’s focus on DNS zones.
In this example we have several zones : -- static.: static zone (like servers with static IP’s) -- dyn.: dynamic zone, updated by DHCP when a computer gets an IP from it -- 1 : static zone (servers, etc.), which is not updated by DDNS -- 1 : dynamic zone, will contain information about machines using DHCP My advise to split the static zones from the dynamic zones, DDNS has a tendency to mess up the zone files, which make them barely readable and manageable.