deepend c39e30f3d1 query port randomization
added query port randomization
2018-11-25 02:14:18 -05:00

71 lines
1.9 KiB

// This is a CentOS/RHEL specific file
// named.conf
// Provided by Red Hat bind package to configure the ISC BIND named(8) DNS
// server as a caching only nameserver (as a localhost DNS resolver only).
// See /usr/share/doc/bind*/sample/ for example named configuration files.
// See the BIND Administrator's Reference Manual (ARM) for details about the
// configuration located in /usr/share/doc/bind-{version}/Bv9ARM.html
options {
listen-on port 53 { any; };
listen-on-v6 port 53 { any; };
query-source port *;
use-v4-udp-ports { range 3000 8000; };
use-v6-udp-ports { range 3000 8000; };
directory "/var/named";
dump-file "/var/named/data/cache_dump.db";
statistics-file "/var/named/data/named_stats.txt";
memstatistics-file "/var/named/data/named_mem_stats.txt";
version "[hidden]";
allow-query { any; };
forwarders {;;
- If you are building an AUTHORITATIVE DNS server, do NOT enable recursion.
- If you are building a RECURSIVE (caching) DNS server, you need to enable
- If your recursive DNS server has a public IP address, you MUST enable access
control to limit queries to your legitimate users. Failing to do so will
cause your server to become part of large scale DNS amplification
attacks. Implementing BCP38 within your network would greatly
reduce such attack surface
recursion yes;
dnssec-enable yes;
dnssec-validation no;
/* Path to ISC DLV key */
bindkeys-file "/etc/named.iscdlv.key";
managed-keys-directory "/var/named/dynamic";
pid-file "/run/named/named.pid";
session-keyfile "/run/named/session.key";
logging {
channel default_debug {
file "data/named.run";
severity dynamic;
zone "." IN {
type hint;
file "named.ca";
include "/etc/named.rfc1912.zones";
include "/etc/named.root.key";
include "/etc/bind/named.conf.local";