Dhcp updating dns records

18 Jan

Since the DHCP server always assigns the dynamic IP addresses to the client computers which may change from time to time, and the DNS maintains the records of the information about the host names and their corresponding IP addresses, there must be some technology with the help of which the DNS server records can automatically get updated with the latest IP addresses that the DHCP server has assigned to the DHCP clients.With the help of DNS integration with the DHCP, you can simplify this task and can remarkably reduce the administrative overhead.

Enjoy 🙂 I found some really nice troubleshooting steps regarding dhcp and dns server here12.04 amazon cloud amazon ec2 amazon s3 amazon vpc ansible ansible basics ansible vpc apache apache2 AWS aws ec2 aws vpc aws vpn aws with ansible backup centos centos 6 centos server client clonezilla clonezilla on linux dhcp EC2 ec2 instance Gnome gnome classic Install ipsec LAMP LEMP linux linux ipsec linux server linux vpn mikrotik mikrotik router My SQL mysql command line nginx openswan openvpn playbooks private key putty quagga router routing Security Group server simple test site to site vpn ssh ssh login ssh server ssh tunnel Static IP Address Subversion subversion server svn technology tunneling the traffic ubuntu ubuntu.exiting." echo "you can do this by typing the following commands" echo "kinit [email protected]$" echo "samba-tool user create dhcpduser --random-password --description=\"Unprivileged user for DNS updates via ISC DHCP server\"" echo "samba-tool user setexpiry dhcpduser --noexpiry" echo "samba-tool group addmembers Dns Admins dhcpduser" exit 1 fi # Check for Kerberos keytab if [ !-f /etc/dhcp/dhcpduser.keytab ]; then echo "Required keytab /etc/dhcpduser.keytab not found, it needs to be created." echo "Use the following commands as root" echo "samba-tool domain exportkeytab --principal=$ /etc/dhcpduser.keytab" echo "chown XXXX: XXXX /etc/dhcpduser.keytab" echo "Replace 'XXXX: XXXX' with the user & group that dhcpd runs as on your distro" echo "chmod 400 /etc/dhcpduser.keytab" exit 1 fi # Variables supplied by action=

Enjoy 🙂 I found some really nice troubleshooting steps regarding dhcp and dns server here12.04 amazon cloud amazon ec2 amazon s3 amazon vpc ansible ansible basics ansible vpc apache apache2 AWS aws ec2 aws vpc aws vpn aws with ansible backup centos centos 6 centos server client clonezilla clonezilla on linux dhcp EC2 ec2 instance Gnome gnome classic Install ipsec LAMP LEMP linux linux ipsec linux server linux vpn mikrotik mikrotik router My SQL mysql command line nginx openswan openvpn playbooks private key putty quagga router routing Security Group server simple test site to site vpn ssh ssh login ssh server ssh tunnel Static IP Address Subversion subversion server svn technology tunneling the traffic ubuntu ubuntu.

exiting." echo "you can do this by typing the following commands" echo "kinit [email protected]$" echo "samba-tool user create dhcpduser --random-password --description=\"Unprivileged user for DNS updates via ISC DHCP server\"" echo "samba-tool user setexpiry dhcpduser --noexpiry" echo "samba-tool group addmembers Dns Admins dhcpduser" exit 1 fi # Check for Kerberos keytab if [ !

-f /etc/dhcp/dhcpduser.keytab ]; then echo "Required keytab /etc/dhcpduser.keytab not found, it needs to be created." echo "Use the following commands as root" echo "samba-tool domain exportkeytab --principal=$ /etc/dhcpduser.keytab" echo "chown XXXX: XXXX /etc/dhcpduser.keytab" echo "Replace 'XXXX: XXXX' with the user & group that dhcpd runs as on your distro" echo "chmod 400 /etc/dhcpduser.keytab" exit 1 fi # Variables supplied by action=$1 ip=$2 DHCID=$3 name=$ usage() _KERBEROS () # Exit if no ip address or mac-address if [ -z "$" ] || [ -z "$" ]; then usage exit 1 fi # Exit if no computer name supplied, unless the action is 'delete' if [ "$" = "" ]; then if [ "$" = "delete" ]; then name=$(host -t PTR "$" | awk '' | awk -F '.' '') else usage exit 1; fi fi # Set PTR address ptr=$(echo $ | awk -F '.' '') ## nsupdate ## case "$" in add) _KERBEROS nsupdate -g $ Start the dhcp server and see what happens, don't forget to stop your windows clients trying to update their own records, as this will fail.

The tables were maintained manually in form of the host file.

The Domain Name System brought a method of distributing the same address information automatically online through recursive queries to remote databases configured for each network, or domain.

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Enjoy 🙂 I found some really nice troubleshooting steps regarding dhcp and dns server here12.04 amazon cloud amazon ec2 amazon s3 amazon vpc ansible ansible basics ansible vpc apache apache2 AWS aws ec2 aws vpc aws vpn aws with ansible backup centos centos 6 centos server client clonezilla clonezilla on linux dhcp EC2 ec2 instance Gnome gnome classic Install ipsec LAMP LEMP linux linux ipsec linux server linux vpn mikrotik mikrotik router My SQL mysql command line nginx openswan openvpn playbooks private key putty quagga router routing Security Group server simple test site to site vpn ssh ssh login ssh server ssh tunnel Static IP Address Subversion subversion server svn technology tunneling the traffic ubuntu ubuntu.exiting." echo "you can do this by typing the following commands" echo "kinit [email protected]$" echo "samba-tool user create dhcpduser --random-password --description=\"Unprivileged user for DNS updates via ISC DHCP server\"" echo "samba-tool user setexpiry dhcpduser --noexpiry" echo "samba-tool group addmembers Dns Admins dhcpduser" exit 1 fi # Check for Kerberos keytab if [ !-f /etc/dhcp/dhcpduser.keytab ]; then echo "Required keytab /etc/dhcpduser.keytab not found, it needs to be created." echo "Use the following commands as root" echo "samba-tool domain exportkeytab --principal=$ /etc/dhcpduser.keytab" echo "chown XXXX: XXXX /etc/dhcpduser.keytab" echo "Replace 'XXXX: XXXX' with the user & group that dhcpd runs as on your distro" echo "chmod 400 /etc/dhcpduser.keytab" exit 1 fi # Variables supplied by action=$1 ip=$2 DHCID=$3 name=$ usage() _KERBEROS () # Exit if no ip address or mac-address if [ -z "$" ] || [ -z "$" ]; then usage exit 1 fi # Exit if no computer name supplied, unless the action is 'delete' if [ "$" = "" ]; then if [ "$" = "delete" ]; then name=$(host -t PTR "$" | awk '' | awk -F '.' '') else usage exit 1; fi fi # Set PTR address ptr=$(echo $ | awk -F '.' '') ## nsupdate ## case "$" in add) _KERBEROS nsupdate -g $ Start the dhcp server and see what happens, don't forget to stop your windows clients trying to update their own records, as this will fail.The tables were maintained manually in form of the host file.The Domain Name System brought a method of distributing the same address information automatically online through recursive queries to remote databases configured for each network, or domain.

ip= DHCID= name=$ usage() _KERBEROS () # Exit if no ip address or mac-address if [ -z "$" ]