Tag Archives: domain

Configuring your DNS

Used instructions from http://ubuntuforums.org/showthread.php?t=236093 to configure DNS server with BIND9.

Note that the instructions for the file /etc/bind/zones/rev.0.168.192.in-addr.arpa are missing a period after the last address (example.com should be example.com.).  We also had to name our revers file “rev.3.39.64.in-addr.arpa”  rather than “rev.0.3.39.64.in-addr.arpa”.  Note this name change must be reflected also inside of the file /etc/bind/zones/rev.3.39.64.in-addr.arpa, and in the file /etc/bind/named.conf.local.

“example.com” = “team1.isucdc.com” in file /etc/bind/named.conf.options, “123.123.123.123” = “199.100.16.100”  (proxy)

Changes to the file /etc/bind/zones/example.com.db (which is /etc/bind/zones/team1.isucdc.com):

example.com.      IN      SOA     ns1.example.com. admin.example.com  changed to example.com.      IN      SOA     dns.team1.isucdc.com. admin.example.com

example.com.      IN      NS              ns1.example.com.  changed to   team1.isucdc.com.   IN      NS    dns.team1.isucdc.com

Removed: example.com.      IN      MX     10       mta.example.com

Added servers:

www    IN    A     64.39.3.1
dns      IN    A     64.39.3.1
mon     IN    A     64.39.3.1
rdp      IN    A     64.39.3.1
chat      IN    A     64.39.3.1

Checked for vulnerabilities to BIND9.  There are four related to malformed queries; all can cause the server to fail.   However, there are no workarounds at this time.