Activer la clé wifi

Pour obtenir le nom de la clé

ifconfig

Dans /etc/network/interfaces

How to set wireless access point? (Jessie)

There are two different hostapd daemons. One is default and the other one is for some Realtek wifi cards. Both have their own basic configurations and both are patched to gain maximum performances.

Sources: https://github.com/igorpecovnik/hostapd

Default binary and configuration location:

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

To start AP automatically:

Edit /etc/init.d/hostapd and add/alter location of your conf file DAEMON\_CONF=/etc/hostapd.conf and binary DAEMON\_SBIN=/usr/sbin/hostapd
Copy /etc/network/interfaces.hostapd to /etc/network/interfaces
Reboot
Predefined network name: “SSID” password: 12345678
To change parameters, edit /etc/hostapd.conf BTW: You can get WPAPSK the long blob from wpa_passphrase YOURNAME YOURPASS

Configurer le DNSMASQ

Wifi hotspot troubleshooting

root@odroidc2:~# hostapd /etc/hostapd.conf

Configuration file: /etc/hostapd.conf
Driver does not support configured HT capability [DSSS_CCK-40]
wlan0: interface state UNINITIALIZED->DISABLED
wlan0: AP-DISABLED 
wlan0: Unable to setup interface.
wlan0: interface state DISABLED->DISABLED
wlan0: AP-DISABLED 
hostapd_free_hapd_data: Interface wlan0 wasn't started
nl80211: deinit ifname=wlan0 disabled_11b_rates=0

make sur the hosted.conf is adapt to your wifi dongle

Another errors messages

Configuration file: /etc/hostapd.conf
nl80211: Could not configure driver mode
nl80211: deinit ifname=wlan0 disabled_11b_rates=0
nl80211 driver initialization failed.
wlan0: interface state UNINITIALIZED->DISABLED
wlan0: AP-DISABLED 
hostapd_free_hapd_data: Interface wlan0 wasn't started

relancer les services : /etc/init.d/hostapd stop && /etc/init.d/dnsmasq stop && /etc/init.d/networking restart && hostapd /etc/hostapd.conf

Configuration file: /etc/hostapd.conf
Line 20: unknown configuration item 'noscan'
1 errors found in configuration file '/etc/hostapd.conf'
Failed to set up interface with /etc/hostapd.conf
Failed to initialize interface

the line 20 should be commented

root@odroidc2:~# /etc/init.d/hostapd stop
[ ok ] Stopping hostapd (via systemctl): hostapd.service.
root@odroidc2:~# /etc/init.d/dnsmasq stop
[ ok ] Stopping dnsmasq (via systemctl): dnsmasq.service.
root@odroidc2:~# /etc/init.d/networking restart
[....] Restarting networking (via systemctl): networking.serviceWarning: Unit file of networking.service changed on disk, 'systemctl daemon-reload' recommended.
root@odroidc2:~# hostapd /etc/hostapd.conf
Configuration file: /etc/hostapd.conf
[....] Starting dnsmasq (via systemctl): dnsmasq.serviceUsing interface wlan0 with hwaddr 7c:dd:90:ad:67:c2 and ssid "SSID"
Job for dnsmasq.service failed. See 'systemctl status dnsmasq.service' and 'journalctl -xn' for details.
 failed!

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

 
après une extinction inopinée de cartodroid 
~~~
hostapd /etc/hostapd.conf
Configuration file: /etc/hostapd.conf
nl80211: Could not configure driver mode
nl80211: deinit ifname=wlan0 disabled_11b_rates=0
nl80211 driver initialization failed.
wlan0: interface state UNINITIALIZED->DISABLED
wlan0: AP-DISABLED
hostapd_free_hapd_data: Interface wlan0 wasn't started
~~~



arreter  les sevices suivants :
~~~
/etc/init.d/hostapd stop
/etc/init.d/dnsmasq stop
/etc/init.d/networking restart
~~~
et les redemarer 

/etc/init.d/hostapd start
/etc/init.d/dnsmasq start




~~~
root@cartodroid:~# hostapd /etc/hostapd.conf
Configuration file: /etc/hostapd.conf
nl80211: Could not configure driver mode
nl80211: deinit ifname=wlan0 disabled_11b_rates=0
nl80211 driver initialization failed.
wlan0: interface state UNINITIALIZED->DISABLED
wlan0: AP-DISABLED
hostapd_free_hapd_data: Interface wlan0 wasn't started
~~~

Une fois hostapd lancé
connectez un terminal au hotspot

un message de ce type doit apparaitre

wlan0: STA 00:26:08:f6:83:01 IEEE 802.11: authenticated wlan0: STA 00:26:08:f6:83:01 IEEE 802.11: associated (aid 1) wlan0: AP-STA-CONNECTED 00:26:08:f6:83:01 wlan0: STA 00:26:08:f6:83:01 RADIUS: starting accounting session 4945A99A-00000000 wlan0: STA 00:26:08:f6:83:01 WPA: pairwise key handshake completed (RSN)


la connection est alors établie.

lorsque vous vous deconectez ces messages apparaissent
~~~
wlan0: AP-STA-DISCONNECTED 80:56:f2:25:98:4b
wlan0: STA 80:56:f2:25:98:4b IEEE 802.11: disassociated
wlan0: interface state ENABLED->DISABLED
wlan0: AP-DISABLED
nl80211: deinit ifname=wlan0 disabled_11b_rates=0
~~~



lancer la commande pour voir ce qui se passe en live

tail -f /var/log/messages ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

ou verifier les status des services

root@odroidc2:~# systemctl status dnsmasq.service
● dnsmasq.service - dnsmasq - A lightweight DHCP and caching DNS server
   Loaded: loaded (/lib/systemd/system/dnsmasq.service; enabled)
  Drop-In: /run/systemd/generator/dnsmasq.service.d
           └─50-dnsmasq-$named.conf, 50-insserv.conf-$named.conf
   Active: failed (Result: exit-code) since Wed 2016-08-10 09:07:30 CEST; 20s ago
  Process: 1189 ExecStop=/etc/init.d/dnsmasq systemd-stop-resolvconf (code=exited, status=0/SUCCESS)
  Process: 782 ExecStartPost=/etc/init.d/dnsmasq systemd-start-resolvconf (code=exited, status=0/SUCCESS)
  Process: 1692 ExecStart=/etc/init.d/dnsmasq systemd-exec (code=exited, status=2)
  Process: 1690 ExecStartPre=/usr/sbin/dnsmasq --test (code=exited, status=0/SUCCESS)
 Main PID: 780 (code=exited, status=0/SUCCESS)

ifdown wlan0 && ifup wlan0 et relancer dnsmasq

si internet n'est pas accessible redemarer le bridge DO ifdown br0 && ifup br0

et si lizmap n'est pas accessible mais que internet l'est deconnection du client du AP wifi

DO ifdown eth0 && ifup eth0

si la box n'est pas accessible mais qu'internet l'est ping 192.168.1.1 PING 192.168.1.1 (192.168.1.1) 56(84) bytes of data. From 192.168.1.98 icmp_seq=1 Destination Host Unreachable

DO ifconfig eth0 192.168.1.98

CAS déconnection à chaud du eth0 + deconnection / reconnection de la clé wifi car erreur et disparition du SSID

[ 1436.176842] ieee80211 phy1: rt2x00usb_vendor_request: Error - Vendor Request 0x06 failed for offset 0x0408 with error -110

la clé s'allume: débrancher et rebrancher clé wifi

RUN ./wifi_noweb.sh

/etc/init.d/dnsmasq restart /etc/init.d/hostapd restart

peut être nécessaire de relancer hostapd avec cette commande hostapd /etc/hostapd.conf puis /etc/init.d/hostapd restart

-> connection limité pas d'internet Perte de lizmap ... verifier systemctl status networking.service ● networking.service - Raise network interfaces Loaded: loaded (/lib/systemd/system/networking.service; enabled; vendor prese Drop-In: /etc/systemd/system/networking.service.d └─10-nostop.conf /run/systemd/generator/networking.service.d └─50-insserv.conf-$network.conf Active: failed (Result: timeout) since Sat 2017-08-12 08:30:44 UTC; 45min ago Docs: man:interfaces(5) Process: 708 ExecStart=/sbin/ifup -a --read-environment (code=killed, signal=T Process: 508 ExecStartPre=/bin/sh -c [ "$CONFIGURE_INTERFACES" != "no" ] && [ Main PID: 708 (code=killed, signal=TERM)

Aug 12 08:25:43 cartodroid systemd[1]: Starting Raise network interfaces... Aug 12 08:25:44 cartodroid ifup[708]: /sbin/ifup: waiting for lock on /run/netwo Aug 12 08:30:44 cartodroid systemd[1]: networking.service: Start operation timed Aug 12 08:30:44 cartodroid systemd[1]: Failed to start Raise network interfaces. Aug 12 08:30:44 cartodroid systemd[1]: networking.service: Unit entered failed s Aug 12 08:30:44 cartodroid systemd[1]: networking.service: Failed with result 't Warning: networking.service changed on disk. Run 'systemctl daemon-reload' to re

DO systemctl daemon-reload sleep 2 service dnsmasq restart sleep 5 service networking restart sleep 5 service hostapd restart

-> supprime le AP DO service hostapd restart

CAS extinction innopinée en mode WIFI no web verifier

lrwxrwxrwx 1 root root 31 Aug 12 11:52 interfaces -> /etc/network/interfaces.hostapd

try ./wifi_noweb.sh - Plus de AP

./reload_AP.sh

networking failed

systemctl daemon-reload service networking restart

try ./wifi_noweb.sh

CAS reconnection à chaud du eth0 / connecté au AP wlan0

aucune IP sur wlan

ifdown wlan0
ifup wlan0
/etc/init.d/dnsmasq restart

no responding :

ifdown: waiting for lock on /run/network/ifstate.wlan0

wait 5 min

Outils de debug

IPTABLES

iptables -nvL

iptables -L --line-numbers

voir la doc

 sysctl net.ipv4.ip_forward
 sysctl -w net.ipv4.ip_forward=1
nano /etc/sysctl.conf
 sysctl -p /etc/sysctl.conf

Check routes

route -n

Ip en temps réel

ip monitor