hello everyone. i do moved to a new office and they offer me only wifi connection with the following settings.
SSID:Access_comm_PLUS
WPA2
passwd:123abc
dynamic IP

there is no gui in the system.
i do have an old PC with an ethernet that i have setup wheezy and a usb wifi stick (TP LINK w722n). The chipset has been recognised by doing:
apt-get install wireless-tools usbutils firmware-atheros
wget http://linuxwireless.org/download/ht....3/htc_9271.fw
cp htc_9271.fw /lib/firmware

this is what i have done to the system. I do need to configure the system to have on eth0 the LAN 192.168.90.0/24 with a static IP in the eth0. All traffic will go to internet through wifi.
some help please.

I'm not quite sure whether you're trying to connect through your wireless card or through your (wired) network card. In case it's via wireless, you can try installing the wpasupplicant package with apt-get and then edit your /etc/network/interfaces file. You can check the /usr/share/doc/ifupdown/examples/network-interfaces.gz file for examples on how it should look, but something like this should work:

Replace wlan0 with whatever your wireless card is named. I'm not familiar with Atheros cards, but I think they are ath0 or something like that. (Check the output of ifconfig -a to know it).

(BTW, I would suggest that you edit your post and delete the password, just in case; you never know who might be reading it).

After that, try:

If it doesn't work, try rebooting the machine and see if it gets connected to the wifi signal.

my /etc/network/interfaces has

auto wlan0
iface wlan0 inet static
address 192.168.0.49
netmask 255.255.255.0
broadcast 192.168.0.255
wpa-ssid "Com_SAT_PLUS "
wpa-psk "wh@t3v3r123 "
up nat.sh eth0 wlan0 "192.168.90.0/24"

auto eth0
iface eth0 inet static
address 192.168.90.100
netmask 255.255.255.0

i can ping/traceroute up to the wireless gateway (192.168.0.1) nothing else.
if i get my laptop to connect through its wireless to the wifi, i can get access everywhere to the net.
do i need to setup anything else?

You said the wireless is set to use a dynamic IP, however, the wireless section of your interfaces file is set to use a static IP. Fix that and see if it helps.

i contacted the admin of the wifi network and gave me a static IP, as i thought it might help me.
------------------------------------------
i had a typo and now i can ping in 8.8.8.8 and www.google.com
when i plug in pc in eth0 i cannot go anywhere.

NetworkManager with nmcli is a fairly simple light-weight command line tool (that does require some configuration to be done). And wicd with wicd-curses provides a very user-friendly TUI.

i don't know much about the topic discussed here, but i just wanted to confirm this.
nmcli's man page is well structured and helps one to go through the process of setting everything up.
once you have everything set up with nmcli, it either starts connecting automatically, or you can use nmtui (ncurses interface) to dis/connect.

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