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Installation Apache and DHCP PHP

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#This is an overview of all the commands you need to properly configure the Raspberry Pi as an access point server.



#Step 1: Run updates

sudo apt-get update



#Step 2: Check that you are connected to the Internet. The following command should print 5 packets from google.com

ping -c 5 google.com



#Step 3: Install Apache

sudo apt-get install apache2 -y



#Step 4: Navigate to installation folder

cd /var/www/



#Step 5: Change permissions to enter and edit the html file

sudo chown pi: html



#Step 6: Navigate back to home folder

cd



#Step 7: Install server software onto RPi

sudo apt-get install hostapd isc-dhcp-server



#Step 8: Install an iptables manager:

sudo apt-get install iptables-persistent



#Say "yes" to both config screens (by typing "y")



#Step 9: Set up the DHCP Server - Edit the DHCP file.

sudo nano /etc/dhcp/dhcpd.conf



#Add a "#" in front of the following lines:

option domain-name "example.org";

option domain-name-servers ns1.example.org, ns2.example.org;



#Find the lines that say:

# If this DHCP server is the official DHCP server for the local

# network, the authoritative directive should be uncommented.

#authoritative;



#Remove the "#" in front of the following lines:

#authoritative;



#Add the following code at the bottom of the file:

subnet 192.168.42.0 netmask 255.255.255.0 {

range 192.168.42.10 192.168.42.50;

option broadcast-address 192.168.42.255;

option routers 192.168.42.1;

default-lease-time 600;

max-lease-time 7200;

option domain-name "local";

option domain-name-servers 8.8.8.8, 8.8.4.4;

}



#Save the file by typing "Control-X", then "Y" and "Enter"



#Step 10: Set up the DHCP Server - Edit the default file for the DHCP server

sudo nano /etc/default/isc-dhcp-server



#Scroll down to INTERFACES="" and change it to read INTERFACES="wlan0" (or whatever the name of your WiFi adapter is)



#Step 11: Set up wlan0 for static IP.

sudo ifdown wlan0



#Set up the wlan0 connection to be static and incoming. Edit the following file:

nano /etc/network/interfaces



#Edit the file so that it looks like this:

auto lo



iface lo inet loopback

iface eth0 inet dhcp



allow-hotplug wlan0



iface wlan0 inet static

address 192.168.42.1

netmask 255.255.255.0



#iface wlan0 inet manual

#wpa-roam /etc/wpa-supplicant/wpa_supplicant.conf

#iface default inet dhcp



#Save the file and exit (Control-X Y)



#Assign a static IP address to the wifi adapter by running:

sudo ifconfig wlan0 192.168.42.1





#Step 12: Configure Access Point

sudo nano /etc/hostapd/hostapd.conf



#Write in the following exactly as-is (no extra spaces):

interface=wlan0

ssid=HelloWorld

country_code=US

hw_mode=g

channel=6

macaddr_acl=0

auth_algs=1

ignore_broadcast_ssid=0

#wpa=2

#wpa_passphrase=Raspberry

#wpa_key_mgmt=WPA-PSK

#wpa_pairwise=CCMP

#wpa_group_rekey=86400

ieee80211n=1

wme_enabled=1



#To enable a password, remove the "#" in front of the 5 lines starting with "wpa"

#Change the wpa_passphrase to whatever password you chose for your RPi

#You can change the network broadcast name by changing the text after "ssid"



#Save and close



#Tell the RPi where to find this configuration file:

sudo nano /etc/default/hostapd



#Find the line "#DAEMON_CONF="" ", remove the "#" and edit it so it says:

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



#Save and Close



#Edit the initialization file for hostapd:

sudo nano /etc/init.d/hostapd



#Find the line "DAEMON_CONF="" ", and edit it so it says:

DAEMON_CONF=/etc/hostapd/hostapd.conf



#Step 13: Configure Network Address Translation ("NAT") to allow multiple clients to connect to the Raspberry Pi WiFi:

#Edit the sysctl configuration file:

sudo nano /etc/sysctl.conf



#Add the following to the end of the file:

net.ipv4,ip_forward=1



#Exit and save the file.



#Activate IP Forwarding:

sudo sh -c “echo 1 > /proc/sys/net/ipv4/ip_forward”



#Create network translation between eth0 and wlan0:

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



#Ensure NAT happens on reboot:

sudo sh -c “iptables-save > /etc/iptables/rules.v4”





#Step 14: Test your access point.

sudo /usr/sbin/hostapd /etc/hostapd/hostapd.conf



#Check status of host AP server and DHCP server:

sudo service hostapd status

sudo service isc-dhcp-server status



#Step 15: Finishing up by setting up a daemon - a program that starts everytime the RPi boots.

sudo service hostapd start

sudo service isc-dhcp-server start



#Run the following two commands:

sudo update-rc.d hostapd enable

sudo update-rc.d isc-dhcp-server enable





#Done! Go forth and create! If you need help w/ next steps, go to the "Server Website" folder