mirror of
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260 lines
7.1 KiB
Plaintext
260 lines
7.1 KiB
Plaintext
# Bind 9 DNS
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https://wpcademy.com/how-to-install-bind9-dns-server-on-ubuntu-step-by-step/
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https://www.linuxtechi.com/install-configure-bind-9-dns-server-ubuntu-debian/
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https://www.isc.org/bind/
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https://www.digitalocean.com/community/tutorials/how-to-configure-bind-as-a-private-network-dns-server-on-debian-9
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# DMZ STEALTH SERVER, SPLIT-HORIZON, SPLIT-BRAIN DNS
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https://www.cyberciti.biz/faq/linux-unix-bind9-named-configure-views/
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https://www.zytrax.com/books/dns/ch4/#split
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# Misc re-used commands
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sudo systemctl status named
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sudo systemctl restart bind9
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sudo systemctl status bind9
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suso systemctl restart bind9.service
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sudo service bind9 restart
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sudo named-checkconf
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sudo named-checkzone intensewebs.com /var/lib/bind/db.intensewebs.com
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sudo tail -f /var/log/syslog
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sudo apt update && sudo apt upgrade -y
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sudo apt install -y bind9 bind9utils bind9-doc dnsutils
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cd /etc/bind
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# Copy/Backup your files
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sudo cp /etc/bind/named.conf.options /etc/bind/named.conf.options.backup
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sudo vi /etc/bind/named.conf.options
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acl trustedclients {
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localhost;
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localnets;
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192.168.1.140 #ns1.intensewebs.com
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192.168.1.141 #ns2.intensewebs.com
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192.168.1.142 #ns3.intensewebs.com
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192.168.1.143 #ns4.intensewebs.com
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192.168.1.0/24;
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192.168.2.0/24;
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};
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options {
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directory "/var/cache/bind";
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recursion yes;
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allow-query { trustedclients; };
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allow-query-cache { trustedclients; };
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allow-recursion { trustedclients; };
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forwarders {
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9.9.9.9;
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149.112.112.112;
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};
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dnssec-validation no;
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listen-on-v6 { any; };
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};
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# NOTE: DNSSec disabled as it was found to cause issues for Ubuntu 20.04
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# 4) Define zone files backup the existing file named.conf.local e.g.
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sudo cp /etc/bind/named.conf.local /etc/bind/named.conf.local.bak
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sudo vi named.conf.local
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so it looks something like this
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zone "intensewebs.com" {
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type master;
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file "/var/lib/bind/db.intensewebs.com";
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allow-transfer { 192.168.1.141; };
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also-notify { 192.168.1.141; };
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};
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zone "nukvm.org" {
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type master;
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file "/var/lib/bind/db.nukvm.org";
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allow-transfer { 192.168.1.141; };
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also-notify { 192.168.1.141; };
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};
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zone "iweb.city" {
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type master;
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file "/var/lib/bind/db.iweb.city";
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allow-transfer { 192.168.1.141; };
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also-notify { 192.168.1.141; };
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};
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zone "1.168.192.in-addr.arpa" {
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type master;
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file "/var/lib/bind/db.1.168.192";
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allow-transfer { 192.168.1.141; };
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also-notify { 192.168.1.141; };
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};
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check the file for errors
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sudo named-checkconf
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5) Create a forward lookup zone in /var/lib/bind. Copy an existing file to one with the name used before e.g.
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sudo cp /etc/bind/db.local /var/lib/bind/db.intensewebs.com
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sudo vi db.intensewebs.com
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$ORIGIN intensewebs.com.
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$TTL 604800
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;
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@ IN SOA ns1.intensewebs.com. dns.intensewebs.com. (
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58 ; Serial
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604800 ; Refresh
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86400 ; Retry
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2419200 ; Expire
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604800 ) ; Negative Cache TTL
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;
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IN NS ns1.intensewebs.com.
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IN NS ns2.intensewebs.com.
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;
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IN MX 10 mail.intensewebs.com.
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;
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alma1 IN A 192.168.1.121
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git IN A 192.168.1.123
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ipa1 IN A 192.168.1.124
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ipa2 IN A 192.168.1.125
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pg IN A 192.168.1.126
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;
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ns1 IN A 192.168.1.140
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ns2 IN A 192.168.1.141
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tdebian IN A 192.168.1.200
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sd IN A 192.168.1.222
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superdog IN A 192.168.1.223
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;
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ftp IN A 74.63.233.135
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mail IN A 74.63.233.135
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webmail IN A 74.63.233.135
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www IN A 74.63.233.135
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;
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t IN A 129.146.170.34
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lab IN A 129.146.170.34
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;
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u IN A 129.153.118.150
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# check the file syntax
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sudo named-checkzone intensewebs.com db.intensewebs.com
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6) Create a reverse lookup zone
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using same name specified in named- edit the file e.g.
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sudo vi db.1.168.192
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$TTL 604800
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@ IN SOA ns1.intensewebs.com. dns.intensewebs.com. (
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58 ; Serial
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604800 ; Refresh
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86400 ; Retry
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2419200 ; Expire
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604800 ) ; Negative Cache TTL
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IN NS ns1.intensewebs.com.
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IN NS ns2.intensewebs.com.
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ns1.intensewebs.com. IN A 192.168.1.140
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ns2.intensewebs.com. IN A 192.168.1.141
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3 IN PTR giti.iweb.city
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4 IN PTR ng1.iweb.city
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66 IN PTR gitea.nukvm.org
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121 IN PTR alma1.intensewebs.com
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123 IN PTR git.intensewebs.com
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124 IN PTR ipa1.intensewebs.com
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125 IN PTR ipa2.intensewebs.com
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126 IN PTR pg.intensewebs.com
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140 IN PTR ns1.intensewebs.com
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141 IN PTR ns2.intensewebs.com
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200 IN PTR tdebian.intensewebs.com
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201 IN PTR tnginx.iweb.city
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222 IN PTR sd.intensewebs.com
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223 IN PTR superdog.intensewebs.com
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sudo named-checkzone 1.168.192.in-addr.arpa db.1.168.192
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7) Edit the server's DNS entry to use it's own DNS server
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vi /etc/resolv.conf
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domain intensewebs.com
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search intensewebs.com
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nameserver 192.168.1.140
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nameserver 192.168.1.141
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8) Start and test DNS
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sudo systemctl start named
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sudo systemctl enable named
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sudo systemctl start bind9
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sudo systemctl status bind9
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sudo systemctl status named
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test DNS is working e.g.
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host git.intensewebs.com
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host 192.168.1.122
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ping www.amazon.com
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---------------------------------------
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SECONDARY
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sudo vi /etc/bind/named.conf.local
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zone "intensewebs.com" {
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type slave;
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file "/var/lib/bind/db.intensewebs.com";
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masters { 192.168.1.140; };
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};
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zone "nukvm.org" {
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type slave;
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file "/var/lib/bind/db.nukvm.org";
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masters { 192.168.1.140; };
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};
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zone "iweb.city" {
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type slave;
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file "/var/lib/bind/db.iweb.city";
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masters { 192.168.1.140; };
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};
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zone "1.168.192.in-addr.arpa" {
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type slave;
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file "/var/lib/bind/db.1.168.192";
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masters { 192.168.1.140; };
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};
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sudo systemctl restart bind9
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sudo systemctl status bind9
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sudo vi /etc/bind/named.conf.options
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acl trustedclients {
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localhost;
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localnets;
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192.168.1.140 #ns1.intensewebs.com
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192.168.1.141 #ns2.intensewebs.com
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192.168.1.142 #ns3.intensewebs.com
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192.168.1.143 #ns4.intensewebs.com
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192.168.1.0/24;
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192.168.2.0/24;
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};
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options {
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directory "/var/cache/bind";
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recursion yes;
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allow-query { trustedclients; };
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allow-query-cache { trustedclients; };
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allow-recursion { trustedclients; };
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forwarders {
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9.9.9.9;
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149.112.112.112;
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};
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dnssec-validation no;
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listen-on-v6 { any; };
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};
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