firewall-cmd --add-port=22/tcp --permanent
systemctl reload firewalled
yum install gcc make wget bind-utils nmap
yum update
cd /etc/sysconfig/network-scripts/
cp ifcfg-enp0s3 ifcfg-enp0s3:1
vi ifcfg-enp0s3:1
cp ifcfg-enp0s3:1 ifcfg-enp0s3
vi ifcfg-enp0s3
cd /usr/local/src
wget http://cr.yp.to/daemontools/daemontools-0.76.tar.gz
gunzip daemontools-0.76.tar
tar -xpf daemontools-0.76.tar
cd admin/daemontools-0.76
vi src/conf-cc
./package/install
cd /usr/local/src
vi /etc/inittab
wget http://cr.yp.to/ucspi-tcp/ucspi-tcp-0.88.tar.gz
gunzip ucspi-tcp-0.88.tar
tar -xf ucspi-tcp-0.88.tar
cd ucspi-tcp-0.88
vi conf-cc
make
make setup check
cd /usr/local/src
wget http://cr.yp.to/djbdns/djbdns-1.05.tar.gz
wget http://lkr.sourceforge.net/djbdns/mywork/jumbo/jumbo-p13.patch.gz
gunzip jumbo-p13.patch.gz
gunzip djbdns-1.05.tar
tar -xf djbdns-1.05.tar
cd djbdns-1.05
patch -p1 < ../jumbo-p13.patch
vi conf-cc
make
make setup check
useradd -d /var/dnscache -s /bin/false dnscache
useradd -d /var/dnscache -s /bin/false dnslog
dnscache-conf dnscache dnslog /var/dnscache/dnscache 172.31.1.9
ln -sf /var/dnscache/dnscache /service/
useradd -d /var/dnscache -s /bin/false tinydns
useradd -d /var/dnscache -s /bin/false tinylog
tinydns-conf tinydns tinylog /var/dnscache/tinydns 172.31.1.10
cd /var/dnscache/tinydns/
mv data data1
scp root@172.31.1.10:/var/dnscache/tinydns/root/data .
vi data
make
ln -sf /var/dnscache/tinydns /service
vi /etc/init.d/network
firewall-cmd --add-port=53/tcp --permanent
firewall-cmd --add-port=53/udp --permanent
svc -t /service/tinydns/
svscan /service/ &
svc -t /service/tinydns/
svc -t /service/dnscache/
nmap 172.31.1.10
vi /etc/resolv.conf
svscan /service/ &
svc -t /service/dnscache/
svc -t /service/tinydns/