在Redhat 7 上搭建DNS域名解析服务。
yum -y install unbound
yum install -y bind-utils
vi /etc/unbound/unbound.conf
38 #interface: 0.0.0.0
39 interface: 0.0.0.0 ……
177 # access-control: 0.0.0.0/0 refuse
178 access-control: 192.168.XX.0/24 allow
179 # access-control: 127.0.0.0/8 allow
155 # do-ip6: yes
156 do-ip6: no
cat > /etc/unbound/local.d/example.conf << EOF
local-zone: "example.com." static
local-data: "example.com. 86400 IN SOA ns.example.com. root 1 1D 1H 1W 1H"
local-data: "ns.example.com. IN A 192.168.XX.173" local-data: "o19c1.example.com. IN A 192.168.XX.173"
local-data: "o19c-scan.example.com. IN A 192.168.XX.177" local-data: "o19c-scan.example.com. IN A 192.168.XX.178"
local-data: "o19c-scan.example.com. IN A 192.168.XX.179" local-data-ptr: "192.168.XX.177 o19c-scan.example.com."
local-data-ptr: "192.168.XX.178 o19c-scan.example.com." local-data-ptr: "192.168.XX.179 o19c-scan.example.com." EOF
systemctl start unbound
systemctl restart unbound
systemctl status unbound
netstat -tunlp |grep unbound
ss -tunlp|grep unbound
cat /etc/resolv.conf
nslookup o19c-scan
[root@o19c2 network-scripts]# nslookup o19c-scan
Server: 192.168.XX.173
Address: 192.168.XX.173#53
Name: o19c-scan.example.com
Address: 192.168.XX.178
Name: o19c-scan.example.com
Address: 192.168.XX.179
Name: o19c-scan.example.com
Address: 192.168.XX.177
mv /etc/resolv.conf /etc/resolv.conf_orig

本文作者:梁庆奥(上海新炬中北团队)
本文来源:“IT那活儿”公众号

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