ubuntu-mate 搭建无线路由器**

1.sudo apt update2.ip addr查看网络信息（有线网卡为eth0, 无线网卡为wlan0)3.sudo vi /etc/network/interfaces ,输入以下内容后保存。

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.执行以下脚本禁用NetworkManager后重新启动，

#!/bin/bashsystemctl stop NetworkManager.servicesystemctl disable NetworkManager.servicereboot

5.Install hostapd

5.1.sudo apt isntall hostapd5.2. sudo service hostapd stop5.3 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 serversudo service isc-dhcp-server stop6.2 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.confnet.ipv4.ip_forward=17.2 sysctl -p8.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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