I installed wireless usb adapter and it configured automatically
and it show all the wireless network ,but if I want to open internet
by Mozilla Firefox it not open ,please how can I setup my internet connection?

Hi,

it will be nice if your question provides any kind of information.

Please provide the output of the following commands:
eventually than we can provide some help.

You should not ask any question for help without providing any kind of useful information.

thanks I posted below the out of the commands:

$ ifconfig -a
wlan0 link encap:Ethernet HWaddr 00:c0:ca:3e:F4:89
inet addr:192.168.2.179 Bcast:192.168.2.255 Mask:255.255.255.0
inet6 addr: fe80::2c0:caff:fe3e:f489/64 Scope:link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
Rx packets:299 errors:0 dropped :0 overruns:0 frame:0
Tx packets:19 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
Rx bytes:37396(36.5 Kib) Tx bytes:5780(5.6Kib)
$ route -n
Kernel IP routing table
Destination Gateway Genmask flags Metric ref use Iface
192.168.100.0 0.0.0.0 255.255.255.0 U 0 0 0 virbr1
192.168.2.0 0.0.0.0 255.255.255.0 U 2 0 0 wlan0
192.168.122.0 0.0.0.0 255.255.255.0 U 0 0 0 virbr0


$ cat /etc/resolv.conf
#Generated by NetworkManger


#No nameservers found ;try putting DNS server into your
# ifcfg files in /etc/sysconfig/network-scripts like so:
#
#DNS1 = xxx.xxx.xxx.xxx
#DNS2 = xxx.xxx.xxx.xxx
#DOMAIN=lab.foo.com bar.foo.com


$ traceroute -n www.heise.de
:Temporary failur in name resolution
cannot handle "host" cmdline arg 'www.heise.de' on position (argc 2)

please reply me .

Hi,

seems you did not define a default route pointing to your router/internet gateway, also no DNS servers defined for name resolution. First you should fix this points.

I already difned the DNS server ,but I dont know how can I define the Gateway ?
can you tell me please ?