Ubuntu-mate Building a wireless router

Ubuntu-mate Building a wireless router * *
1. sudo apt update
2.ip Addr View network information (wired network card is eth0, wireless card is wlan0)
3. sudo vi/etc/network/interfaces, and then save after entering the following content.

auto eth0iface eth0 inet dhcpallow-hotplug wlan0iface wlan0 inet staticaddress 172.168.1.1netmask 255.255.255.0broadcast 172.168.1.255network 172.168.1.0

4. Execute the following script to disable NetworkManager after reboot,
#!/bin/bash
Systemctl Stop Networkmanager.service
Systemctl Disable Networkmanager.service
Reboot

5.Install HOSTAPD
5.1.sudo apt isntall hostapd
5.2. sudo service HOSTAPD stop
5.3 sudo vi/etc/hostapd/hostapd.conf

interface=wlan0driver=nl80211ssid=your_wifi_namehw_mode=gchannel=3wmm_enabled=0macaddr_acl=0auth_algs=1ignore_broadcast_ssid=0wpa=2wpa_passphrase=your_wifi_passwordwpa_key_mgmt=WPA-PSKwpa_pairwise=TKIPrsn_pairwise=CCMP

Save.
5.4 sudo cat >/etc/default/hostapd

DAEMON_CONF="/etc/hostapd/hostapd.conf"

Ctrl +d Save.
5.5 sudo service hostapd restart

6.Install dhcp ,sudo apt Install isc-dhcp-server
6.1 Stop DHCP server
sudo service isc-dhcp-server stop
6.2 Mv/etc/dhcp/dhcpd.conf/etc/dhcp/dhcpd.conf.origin.bak
Vi/etc/dhcp/dhcpd.conf

Default-lease-time 600;
Max-lease-time 7200;
Option Subnet-mask 255.255.255.0;
Option Broadcast-address 172.168.1.255;
Option routers 172.168.1.1;
Option Domain-name-servers 202.96.128.86,8.8.8.8;
#option domain-name "example.com";

Subnet 172.168.1.0 netmask 255.255.255.0 {
Range 172.168.1.100 172.168.1.150;
}
Null

6.3 vi/etc/default/isc-dhcp-server
INTERFACES="wlan0"
6.4 Restart DHCP service.
sudo service isc-dhcp-server start

7.Activationg the IPV4 forward, change the following line in sysctl.conf
7.1 sudo vi/etc/systcl.conf
net.ipv4.ip_forward=1
7.2 sysctl-p
8.Changing the Firewall
*sudo iptables-t nat-a postrouting-o eth0-j Masquerade

sudo iptables-a forward-i eth0-o wlan0-m State--state related,established-j ACCEPT

sudo iptables-a forward-i wlan0-o eth0-j ACCEPT

8.1 Check The Iptabls
sudo iptables-l-n-v
8.2 Save The Rules
sudo sh-c "Iptables-save >/etc/iptables.ipv4.nat"

sudo vi/etc/rc.local
#add the follow line before "Exit 0"
'Iptables-restore </etc/iptables.ipv4.nat* '

Done.

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Ubuntu-mate Building a wireless router