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1. sudo su

1. nmtui

set system hostname: Prezime-00

edit a connection: connection 1: WAN

edit a connection: connection 2: LAN: IPv4 CONFIGURATION MANUAL: ADRESSES ADD 172.17.143.1/24

1. ifconfig

yum install dhcp

file>otvori jos jedan terminal

1. [DRUGI TERMINAL]

nano /usr/share/doc/dhcp-4.2.5/dhcpd.conf.example

A slightly different configuration for an internal subnet>COPY

1. [PRVI TERMINAL]

nano /etc/dhcp/dhcpd.conf>PASTE

subnet 172.17.143.0;

range 172.17.143.2 172.17.143.254;

option routers 172.17.143.1;

option broadcast adress 172.17.143.255;

option domain-name-servers 172.17.143.1;

1. systemctl enable dhcpd

systemctl start dhcpd

1. [VPCS]

show ip

ip dhcp

ping 172.17.143.1

ping 1.1.1.1

1. [TRECI TERMINAL]

sysctl -w net.ipv4.ip_forward=1

sysctl net.ipv4.ip_forward=1

COPY net.ipv4.ip_forward=1

nano /etc/sysctl.d/ipv4_forward.conf PASTE

firewall-cmd --direct --permanent --passthrough ipv4 -t nat -I POSTROUTING -o eth0 -j MASQUERADE

firewall-cmd --direct --permanent --passthrough ipv4 -t nat -I FORWARD -i eth1 -j ACCEPT

firewall-cmd --reload

1. [VPCS]

ping 1.1.1.1

ping google.hr

1. [TRECI TERMINAL]

yum install bind bind-utils

nano /etc/named.conf

listen on port 53: 172.17.143.1;

allow-query: 172.17.143.0/24;

forwarders {1.1.1.1; 1.0.0.1; 8.8.8.8; 8.8.4.4; }

1. firewall-cmd --add-port=53/tcp

firewall-cmd --add-port=53/udp

systemctl start named

systemctl enable named

firewall-cmd --reload