saludos taringueros, el dia de hoy les traigo una forma de conectarse a internet wifi por medio de comandos, esto sirve para cuando movemos algo de nuestro sistema gnu/linux y que nos hemos cargamos el entorno gráfico y solo dependemos de la señal inalambrica .
//antes que nada abrimos una terminal y nos logueamos como superusuario.
ramses_17@ramses_17-laptop:~$ sudo su
password for ramses_17:
//instalamos el programa dhcpcd esto para que en un futuro hagamos dhclient para escuchar puertos
root@ramses_17-laptop:/home/ramses_17# sudo aptitude install dhcpcd
*
*
*
//observaremos nuestras interfaces de acceso a internet con iwconfig
root@ramses_17-laptop:/home/ramses_17# iwconfig
lo no wireless extensions.
eth0 no wireless extensions.
wlan0 IEEE 802.11bg ESSID: Not-Associated
Mode:Managed Frequency:2.412 GHz Access Point: Not-Associated
Tx-Power=20 dBm
Retry long limit:7 RTS thr:off Fragment thr:off
Encryption key:off
Power Management:off
vboxnet0 no wireless extensions.
/*damos de alta el dispostivo wireless con ifconfig en mi caso es wlan0, pero en otras maquinas dependiendo el tipo de chipset puede ser rausb0, ath0, etc...*/
root@ramses_17-laptop:/home/ramses_17# ifconfig wlan0 up
//y despues escaneamos las redes a nuestro alrededor con iwlist
root@ramses_17-laptop:/home/ramses_17# iwlist wlan0 scanning
wlan0 Scan completed :
Cell 01 - Address: XX:XX:XX:XX:XX:XX
Channel:1
Frequency:2.412 GHz (Channel 1)
Quality=64/70 Signal level=-46 dBm
Encryption key:on
ESSID:"nombre_de_la_red"
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 9 Mb/s
18 Mb/s; 36 Mb/s; 54 Mb/s
Bit Rates:6 Mb/s; 12 Mb/s; 24 Mb/s; 48 Mb/s
Mode:Master
Extra:tsf=0000003a7aff0124
Extra: Last beacon: 824ms ago
IE: Unknown: 00054C696E7578
IE: Unknown: 010882848B961224486C
IE: Unknown: 030101
IE: Unknown: 2A0104
IE: Unknown: 32040C183060
IE: Unknown: --------------------------------------------------
IE: Unknown: ---------------------------------------------
IE: Unknown: 3E0100
IE: Unknown: ---------------------------------------------
IE: Unknown: 0B050000097A12
IE: Unknown: 7F0101
IE: Unknown: ---------------------------------------------
IE: Unknown: 07064D5820010B10
IE: Unknown: ---------------------------------------------
IE: Unknown: -------------------------------------------------
Cell 02 - Address: XX:XX:XX:XX:XX:XX
Channel:6
Frequency:2.437 GHz (Channel 6)
Quality=25/70 Signal level=-85 dBm
Encryption key:on
ESSID:"INFINITUMXXXXXX"
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 18 Mb/s
24 Mb/s; 36 Mb/s; 54 Mb/s
Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 48 Mb/s
Mode:Master
Extra:tsf=0000004997d416fd
Extra: Last beacon: 424ms ago
IE: Unknown: ---------------------------------------------
IE: Unknown: 010882848B962430486C
IE: Unknown: 030106
IE: Unknown: 2A0100
IE: Unknown: 2F0100
IE: Unknown: 32040C121860
IE: Unknown: ---------------------------------------------
Cell 03 - Address: XX:XX:XX:XX:XX:XX
Channel:1
Frequency:2.412 GHz (Channel 1)
Quality=17/70 Signal level=-93 dBm
Encryption key:on
ESSID:"INFINITUMYYYY"
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s
Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s
36 Mb/s; 48 Mb/s; 54 Mb/s
Mode:Master
Extra:tsf=0000000000ec049c
Extra: Last beacon: 900ms ago
IE: Unknown: ---------------------------------------------
IE: Unknown: 010482848B96
IE: Unknown: 030101
IE: Unknown: 050400010000
IE: Unknown: 2A0104
IE: Unknown: ---------------------------------------------
/*Cell ## son las diferentes redes que aparecen dependiendo de las circunstancias a nuestro alrededor puede variar el numero de redes que aparezcan en el escaneo
como la mayoria de ustedes intentaran esto teniendo funcionando el entorno grafico tendremos que detener nuestro gestor de redes para evitar futuros conflictos.*/
root@ramses_17-laptop:/home/ramses_17# /etc/init.d/network-manager stop
Rather than invoking init scripts through /etc/init.d, use the service(8)
utility, e.g. service network-manager stop
Since the script you are attempting to invoke has been converted to an
Upstart job, you may also use the stop(8) utility, e.g. stop network-manager
network-manager stop/waiting
//realizamos la conexion con iwconfig poniendo los siguientes parametros
wlan0: nuestro dispositivo
essid [nombre_de_la_red]
key [clave_de_la_red]
root@ramses_17-laptop:/home/ramses_17# iwconfig wlan0 essid nombre_de_la_red key clave_de_la_red
//usamos el comando iwconfig para ver si nuestra interfaz esta conectada
root@ramses_17-laptop:/home/ramses_17# iwconfig
lo no wireless extensions.
eth0 no wireless extensions.
wlan0 IEEE 802.11bg ESSID:"nombre_de_la_red"
Mode:Managed Frequency:2.412 GHz Access Point: XX:XX:XX:XX:XX:XX
Bit Rate=1 Mb/s Tx-Power=20 dBm
Retry long limit:7 RTS thr:off Fragment thr:off
Encryption key:clave_de_la_red
Power Management:off
Link Quality=58/70 Signal level=-52 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0
vboxnet0 no wireless extensions.
/*haremos uso de dhclient seguido del nombre de nuestra interfaz para escuchar nuestros puertos, esto se hace para ver si ya estamos conectados.*/
root@ramses_17-laptop:/home/ramses_17# dhclient wlan0
There is already a pid file /var/run/dhclient.pid with pid 1756
killed old client process, removed PID file
Internet Systems Consortium DHCP Client V3.1.3
Copyright 2004-2009 Internet Systems Consortium.
All rights reserved.
For info, please visit https://www.isc.org/software/dhcp/
Listening on LPF/wlan0/00:AB:CD:EF:GH:IJ
Sending on LPF/wlan0/00:AB:CD:EF:GH:IJ
Sending on Socket/fallback
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 7
DHCPOFFER of 192.168.1.114 from 192.168.1.254
DHCPREQUEST of 192.168.1.114 on wlan0 to 255.255.255.255 port 67
DHCPACK of 192.168.1.114 from 192.168.1.254
bound to 192.168.1.114 -- renewal in 128531 seconds.
/*y por ultimo hacemos ping a un dominio de internet en mi caso use www.google.com esto para ver si tenemos internet, en algunos casos podemos conectarnos, pero si el modem no tiene servicio de internet el comando ping no nos servira para eso se uso anteriormente dhclient.*/
root@ramses_17-laptop:/home/ramses_17# ping www.google.com
PING www.l.google.com (74.125.224.212) 56(84) bytes of data.
64 bytes from 74.125.224.212: icmp_seq=1 ttl=49 time=58.1 ms
64 bytes from 74.125.224.212: icmp_seq=2 ttl=49 time=57.0 ms
64 bytes from 74.125.224.212: icmp_seq=3 ttl=51 time=58.1 ms
64 bytes from 74.125.224.212: icmp_seq=4 ttl=49 time=57.8 ms
64 bytes from 74.125.224.212: icmp_seq=5 ttl=51 time=58.4 ms
64 bytes from 74.125.224.212: icmp_seq=6 ttl=49 time=59.4 ms
64 bytes from 74.125.224.212: icmp_seq=7 ttl=51 time=59.3 ms
64 bytes from 74.125.224.212: icmp_seq=8 ttl=49 time=58.2 ms
64 bytes from 74.125.224.212: icmp_seq=9 ttl=51 time=57.8 ms
64 bytes from 74.125.224.212: icmp_seq=10 ttl=49 time=58.6 ms
64 bytes from 74.125.224.212: icmp_seq=11 ttl=51 time=60.1 ms
64 bytes from 74.125.224.212: icmp_seq=12 ttl=49 time=58.5 ms
64 bytes from 74.125.224.212: icmp_seq=13 ttl=49 time=57.9 ms
64 bytes from 74.125.224.212: icmp_seq=14 ttl=51 time=57.7 ms
64 bytes from 74.125.224.212: icmp_seq=15 ttl=51 time=58.6 ms
64 bytes from 74.125.224.212: icmp_seq=16 ttl=51 time=57.1 ms
64 bytes from 74.125.224.212: icmp_seq=17 ttl=51 time=57.7 ms
64 bytes from 74.125.224.212: icmp_seq=18 ttl=49 time=57.4 ms
64 bytes from 74.125.224.212: icmp_seq=19 ttl=49 time=59.4 ms
64 bytes from 74.125.224.212: icmp_seq=20 ttl=49 time=65.4 ms
64 bytes from 74.125.224.212: icmp_seq=21 ttl=51 time=57.9 ms
64 bytes from 74.125.224.212: icmp_seq=22 ttl=49 time=59.9 ms
^C64 bytes from 74.125.224.212: icmp_seq=23 ttl=51 time=57.3 ms
--- www.l.google.com ping statistics ---
23 packets transmitted, 23 received, 0% packet loss, time 113471ms
rtt min/avg/max/mdev = 57.063/58.640/65.479/1.688 ms
//para detener el ping presionamos las teclas "ctrl" y "c" al mismo tiempo
//y listo ya tenemos internet para poder reparar el daño al sistema
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