DNS domain name resolution-separate resolution

Experimental environment

1. Windows one as wide area network and one as LAN.

2. CentOS7 acts as a DNS server

Start the experiment.

1. Install the DNS service in the networked state

Yum install bind-y

2. Add a network card to centOS after installation, and the network card is set to host-only mode

3. Set the two wWin10 to host-only mode

4. Enter "ifconfig" in centOS7 to check whether the network card has been added successfully.

5. The next step is to configure the network card, configuring "ens33" and "ens36" respectively.

Input

Cd / etc/sysconfig/network-scripts/vim ifcfg-ens33

Change dhcp to static

Add

IPADDR=192.168.100.1

NETMASK=255.255.255.0

6. Make a copy of the configuration file of "ens33" network card and name it "ens36". Input

Cp-p ifcfg-ens33 ifcfg-ens36vim ifcfg-ens36

Delete

UUID=7bdb3fdc-0c3b-4a92-918d-3815b0816b02

Change all "ens33" to "ens36"

Change the IP address to 12.0.0.1

7. Enter service network restart to restart the network card service, and enter ifconfig to view the configuration.

8. Configure IP address, gateway and DNS address for Win10-1 (local area network) and Win10-2 (wide area network) respectively.

Master configuration file

1. Enter "vim/etc/named.conf" to configure and change the listening address and allowed access to any.

2. Copy the root domain resolution in the main configuration file

Zone profile

1. Enter vim/etc/named.rfc1912.zones to configure

Add

View "lan" {match-clients (192.168.100.0 IN 24;); zone "kgc.com" IN {type master; file "kgc.com.lan";}; zone "." IN {type hint; file "named.ca";}; vim "wan" {match-clients (12.0.0.0 kgc.com.wan 24;); zone "kgc.com" IN {type master; file "kgc.com.wan"

Zone data profile

1 、. Use the "cp-p" command to reserve permission to copy a "name.localhost" file named "kgc.com.lan". Then vim enters the editor.

Cd / var/named/cp-p named.localhost kgc.com.lanvim kgc.com.lan

2. Specific configuration

$TTL 1D @ IN SOA kgc.com. Admin.kgc.com. (0; serial 1D; refresh 1H; retry 1W; expire 3H) Minimum NS kgc.com. A 192.168.100.1www IN A 192.168.100.99smtp IN A 192.168.100.88

3. Use the "cp-p" command to reserve the right to copy a "kgc.com.lan" file, named "kgc.com.wan". Then vim enters the configuration

Cp-p kgc.com.lan kgc.com.wanvim kgc.com.wan

Specific configuration

$TTL 1D @ IN SOA kgc.com. Admin.kgc.com. (0; serial 1D; refresh 1H; retry 1W; expire 3H) Minimum NS kgc.com. A 12.0.0.1www IN A 12.0.0.1smtp IN A 12.0.0.1

5. Start the DNS service and turn off the firewall and enhanced security features

Experimental results

Enter the host to resolve the domain name