This article illustrates how to create a WiFi Web application server to distribute local area contents for smartphones
WiFi adapter setup
/etc/network/interfaces: Code position: CD：//Debian/playground/python/wab/interfaces
auto lo iface lo inet loopback allow-hotplug eth0 iface eth0 inet dhcp hwaddress ether 00:01:04:1b:2C:1F auto wlan0 iface wlan0 inet static address 192.168.2.1 netmask 255.255.255.0
WiFi Access point with Hostapd
Install hostapd package:
debarm:~# apt-get install hostapd
Create a configuration file with the following contents:
- hostapd.conf Code position: CD：//Debian/playground/python/wab/hostapd.conf
#change wlan0 to your wireless device interface=wlan0 driver=nl80211 ssid=AriaG25 channel=1
Launch Hostapd:
debarm:~# hostapd hostapd.conf &
DHCP Server
debarm:~# apt-get install isc-dhcp-server
Edit the /etc/default/isc-dhcp-server file and set the port to bind:
INTERFACES="wlan0"
Now configure our DHCP server is to specify subnetworks in its configuration file etc/dhcp/dhcpd.conf.
Here is the example of the file:
- dhcpd.conf: Code position: CD：//Debian/playground/python/wab/dhcpd.conf
ddns-update-style none; option domain-name "ariag25.org"; option domain-name-servers 192.168.2.1; default-lease-time 600; max-lease-time 7200; authoritative; log-facility local7; subnet 192.168.2.0 netmask 255.255.255.0 { range 192.168.2.50 192.168.2.100; option routers 192.168.2.1; }
When the configuration is done, restart the dhcp server:
debarm:~# /etc/init.d/isc-dhcp-server restart
If the server is complaining about something, see the "/var/log/syslog" for more details.
FakeDNS
- fakedns.py： Code position: CD：//Debian/playground/python/wab/fakedns.py
import socket class DNSQuery: def __init__(self, data): self.data=data self.dominio='' tipo = (ord(data[2]) >> 3) & 15 # Opcode bits if tipo == 0: # Standard query ini=12 lon=ord(data[ini]) while lon != 0: self.dominio+=data[ini+1:ini+lon+1]+'.' ini+=lon+1 lon=ord(data[ini]) def respuesta(self, ip): packet='' if self.dominio: packet+=self.data[:2] + "\x81\x80" packet+=self.data[4:6] + self.data[4:6] + '\x00\x00\x00\x00' # Questions and Answers Counts packet+=self.data[12:] # Original Domain Name Question packet+='\xc0\x0c' # Pointer to domain name packet+='\x00\x01\x00\x01\x00\x00\x00\x3c\x00\x04' # Response type, ttl and resource data length -> 4 bytes packet+=str.join('',map(lambda x: chr(int(x)), ip.split('.'))) # 4bytes of IP return packet if __name__ == '__main__': #qui devi mettere l'IP della FOX ip='192.168.2.1' print 'pyminifakeDNS:: dom.query. 60 IN A %s' % ip udps = socket.socket(socket.AF_INET, socket.SOCK_DGRAM) udps.bind(('',53)) try: while 1: data, addr = udps.recvfrom(1024) p=DNSQuery(data) udps.sendto(p.respuesta(ip), addr) print 'Risposta: %s -> %s' % (p.dominio, ip) except KeyboardInterrupt: print 'Fine' udps.close()
Install non-free Atheros firmware
Add a "non-free" component to /etc/apt/sources.list, for example:
deb http://http.debian.net/debian/ wheezy main contrib non-free
Update the list of available packages and install the firmware-atheros package:
# apt-get update && apt-get install firmware-atheros
Related links
Documentation Terms of Use
The Acme Systems srl provides this Debian system development and user manual.
The origin of these doc came from the website: http://www.acmesystems.it
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License.
