Dhcp not updating dns on domain controller
If you are using a firewall, you will need to open TCP ports 6 Once you are sure everything is working as expected, restart both servers to ensure everything is running correctly.
The 'split' value '128' on the 'primary', divides responsibility for the clients between the two failover partners.
If you want the primary to answer all dhcp requests unless it is down (for whatever reason) set the value to '255', use '0' to make the secondary responsible.
For more information, read the manpage /etc/dhcp/ r, /etc/dhcp/** r, /etc/r, /etc/dhcpd_r, /usr/local/bin/ix, /bin/grep rix, /usr/sbin/samba rix, /usr/bin/gawk rix, /bin/hostname rix, /usr/bin/wbinfo rix, /usr/bin/heimtools rix, /usr/bin/logger rix, /usr/bin/kinit.heimdal rix, /bin/date rix, /dev/tty wr, /dev/urandom w, /proc/** r, /usr/bin/kinit w, /run/samba/winbindd/pipe wr, The first 4 lines are the default, you will need to add everything else.
It doesn't do anything for domain forwarding (which is what would have been needed in this case).Find these lines: Replace PUT_YOUR_KEY_HERE with the key you extracted from the private key created by the dnssec command Restart both servers to apply the configuration changes.You should find lines similar to these, in the system logs on both machines: If OMAPI is working properly you can test failover by stopping the primary server.This How To is based on a Debian OS install, the paths given may be different if you use another OS. /bin/bash # /usr/local/bin/# This script is for secure DDNS updates on Samba 4 # Version: 0.8.9 # Uncomment the next line if using a self compiled Samba and adjust for your PREFIX #PATH="/usr/local/samba/bin:/usr/local/samba/sbin:$PATH" BINDIR=$(samba -b | grep 'BINDIR' | grep -v 'SBINDIR' | awk '') WBINFO="$BINDIR/wbinfo" # DNS domain domain=$(hostname -d) if [ -z $ ]; then logger "Cannot obtain domain name, is DNS set up correctly? Exiting." exit 1 fi # Samba 4 realm REALM=$(echo $) # Additional nsupdate flags (-g already applied), e.g."-d" for debug NSUPDFLAGS="-d" # krbcc ticket cache export KRB5CCNAME="/tmp/dhcp-dyndns.cc" # Kerberos principal SETPRINCIPAL="[email protected]$" # Kerberos keytab # /etc/dhcpduser.keytab # krbcc ticket cache # /tmp/TESTUSER="$($WBINFO -u) | grep 'dhcpduser')" if [ -z "$" ]; then logger "No AD dhcp user exists, need to create it first..