DNS setting (1)
# dns configuration #
# set up the network service environment before you start
Client Settin
Vim / etc/resolv.conf # # Edit configuration file
Nameserver 172.25.254.109 # # add server
Server Settin
Yum install bind-y # # install the bind service
Systemctl status named # # View
Rpm-qc bind
Systemctl enable named # # Boot
Systemctl start named # # enable the service
Firewall-cmd-permanent-add-service=dns # # permanently add dns service
Firewall-cmd-reload
Netstat-antulpe | grep named # # View open ports
Vim / etc/name.conf
Listen-on port 53 {any;}; # # sets the open port. Any says it's open to all interface.
Allow-query {any;}; # # answer everyone's questions
Forwarders {172.25.254.250;}
Dnssec-validation no
Systemctl restart named
# forward resolution # #
# # forward resolution is to resolve domain names to ip
Vim / etc/name.conf
# # Delete forwarders {172.25.254.250;}
Vim / etc/named.rfc1912.zones # # enter the configuration file
Zone "westos.com" IN {
Type master
File "westos.com.zone"
Allow-update {none;}
}
Cd / var/named/
Cp-p named.localhost westos.com.zone # # copy with permission
Vim westos.com.zone
$TTL 1D
@ IN SOA dns.westos.com. Root.westos.com. (
0; serial
1D; refresh
1H; retry
1W; expire
3H); minimum
NS dns.westos.com.
Dns A 172.25.254.109
Www A 172.25.254.251
~
# # @ means that if zone is not added. Indicates that the domain name is automatically supplemented.
Systemctl restart named # # restart the service
# reverse resolution # #
Vim / etc/named.rfc1912.zones
Zone "254.25.172.in-addr.arpa" IN {
Type master
File "westos.com.ptr"
Allow-update {none;}
}
Cd / var/named/
Cp-p named.loopback westos.com.ptr
Vim westos.com.ptr
$TTL 1D
@ IN SOA dns.westos.com. Root.westos.com. (
0; serial
1D; refresh
1H; retry
1W; expire
3H); minimum
NS dns.westos.com.
A 172.25.254.109
109 PTR www.westos.com.
110 PTR www.hello.com.
~
# Bidirectional parsing #
Cd / var/named
Cp-p westos.com.zone westos.com.inter # # add permission to copy files
Vim westos.com.inter # # Edit public network configuration file
$TTL 1D
@ IN SOA dns.westos.com. Root.westos.com. (
0; serial
1D; refresh
1H; retry
1W; expire
3H); minimum
NS dns.westos.com.
Dns A 172.25.0.109
Www A 172.25.0.251
Www A 172.25.0.252
Bbs CNAME www.westos.com.
Westos.com. MX 1 172.25.0.109
~ # # change all network segments to 0 network segments
Cp-p / etc/named.rfc1912.zones / etc/named.rfc1912.zones.inter
Vim / etc/named.rfc1912.zones.inter
Zone "westos.com" IN {
Type master
File "westos.com.inter"
Allow-update {none;}
}
Vim / etc/named.conf # # Edit the main configuration file
/ *
Zone "." IN {
Type hint
File "named.ca"
}
Include "/ etc/named.rfc1912.zones"
Include "/ etc/named.root.key"
* / # # Log out
View localnet {
Match-clients {172.25.254.109;}
Zone "." IN {
Type hint
File "named.ca"
}
Include "/ etc/named.rfc1912.zones"
}; # # add a private network client (you can man 5 named.conf)
View internet {
Match-clients {any;}
Zone "." IN {
Type hint
File "named.ca"
}
Include "/ etc/named.rfc1912.zones.inter"
}; # # add a public network client
Systemctl restart named # # restart the service
