WiFi is a networking technology permitting the exchange of information through wireless (radio) connections.

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Can SSH passwords be sniffed out over Wi-Fi?

When you ssh, can the password you enter to connect, be intercepted if you're using untrusted public Wi-Fi (coffee shop, library, airport, etc).
10
votes
4answers
490 views

Equivalent of iwlist to see who is around?

What is the equivalent to: iwlist wlan0 scan to see who (what computers and smartphones) are around me? Maybe putting the card into monitor mode before doing it.
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4answers
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wireless is disabled by hardware switch even when not

I have a spartan computer. It has a built-in wireless module that up until recently I've had no issues with. The current problem is this. Everytime I shutdown the computer and it boots back up, I am ...
8
votes
4answers
14k views

Ubuntu 12.04 hotspot wifi network not visible to Android 4.1.2

I'm running Ubuntu 12.04 LTS on my notebook, and I've got a Motorola Razr which I updated to Android 4.1.2. Before updating, I connected my smartphone to my hotspot wifi very quickly, but after the ...
8
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1answer
2k views

Linux find Wifi Networks trotocol(a/b/g/n) version of all available access points

I do use iwlist wlan0 scanning and it gives me a fair amount of data, but one part is missing. It is protocol version. By protocol I mean (a/b/g/n). It would be very good to have these commands in ...
8
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2answers
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Measuring internet connection quality

I'm having WLAN trouble on my dualbooting win/linux laptop - the connection on linux side has occasional trouble, and seems somewhat slow and chunky. I would try to fix this issue by fiddling with all ...
7
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2answers
961 views

Is there a tool to display WiFi information in console?

Can I view detected WiFi networks details (like signal strength, encryption etc.) in command line? The more detailed - the better.
7
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1answer
3k views

Why is VirtualBox Bridged networking slow

When logged into the guest, data transfer (scp) from the host is very slow (<1MB/s). Is this expected? setup: VirtualBox host is Debian Unstable VirtualBox guest is Debian 6 (Squeeze) Bridged ...
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2answers
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wlan number assignment

How or where does Linux determine the assignment of a network device? Specifically, wlan0 or wlan1 for wireless USB devices. I plugged in a TP USB wireless a while ago, and it was assigned wlan0. I ...
7
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1answer
1k views

How to debug repeated Wi-Fi disconnections in Arch Linux?

After trying for a long time to get a wireless connection, I am now able to get an extremely sketchy one (as in a few seconds of actual Internet access every few minutes). Running wpa_supplicant -d -i ...
7
votes
1answer
313 views

Installing USR 5422 on Ubuntu 12.04

I am a newbie to Linux. I was trying to set up the USR5422 USB adapter. It worked fine for the first time, but since then it freezes the computer most of the time. What commands can I fire to see ...
7
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5answers
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Unable to connect to a wifi network with a special SSID

My current wifi network (and i'm writing this with the help of Windows -.- ) has a special character in it's SSID: "ö", a so-called "umlaut". If changing the SSID is not an option, how to connect to ...
6
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3answers
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Command line join of password protected wireless networks in Ubuntu, Arch Linux, or other distros?

Is there a way to join a password protected wireless network via the command line in installations of Ubuntu or Arch Linux with no desktop environment or any GUI installed? Also, could this be done ...
6
votes
2answers
572 views

What is reliable, autoconnecting wifi manager?

openSUSE 11.4, one wifi connection with static IP. Requirements: after autologin connection should be automatically established with defined static IP after connection dropped, manager should try ...
6
votes
3answers
5k views

How to bring up a wi-fi interface from a command line?

I can't figure out how to properly bring up the wi-fi card on my laptop. When I turn it on and issue $ sudo iwconfig wlan0 txpower auto $ sudo iwlist wlan0 scan wlan0 Interface doesn't support ...
6
votes
4answers
5k views

All commands that should be used to connect to wifi in command line

I would like to switch from gnome to awesome and I would like to connect my wifi network in command line (instead of using gnome tools). So, I searched on the internet and found approximatively the ...
6
votes
1answer
768 views

Wi-Fi constantly disconnects

Using either NetworkManager or Wicd to manage wireless networking on my Wi-Fi-powered laptop, too often I get randomly disconnected, and I see these messages on /var/log/syslog: Dec 10 05:21:26 ...
6
votes
1answer
264 views

Auto-switch to wifi

Need to connect to specific wifi point as soon as it is in range. If it is out of range, then system must stay connected LAN. In case, any wifi-point is in range, there must be auto-switch.
6
votes
1answer
481 views

How to connect two machines via wifi and no other hardware?

Without using any other hardware, I want to connect two machines that have wifi, so that I can transfer files between them, for example.
6
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1answer
65 views

FreeBSD systat doesn't calculate upload speed/total on wlan0

When I call systat -if shows that wlan0 out traffic/peak/total are 0 kb(/s). I'm using wlan0 for networking, internet down/upload are working. The in traffic/peak/total are OK. The wifi chip is ...
6
votes
1answer
2k views

Terminal commands equivalent to NetworkManager's “Use as Hotspot” option

I'm making a gui application which will control my laptop in order to make it act as a wifi hotspot. I may change distributions so I want to find a solution which will work generally for all ...
6
votes
1answer
735 views

AP randomly gets unreachable for the clients while hostapd is running

I got an old PC running as router which has 3 NIC and 1 wifi PCI card TP-Link L-WN751ND. This box runs Debian Wheezy, hostapd, dhcpd etc. The problem is that AP randomly gets unreachable for the ...
6
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3answers
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Wireless networking with CentOS

I'm running CentOS 5.7 x86 on my Vostro 1700 laptop which has an Intel Pro Wireless WiFi NIC (Intel Pro Wireless 3945 [iwl3945]). I'm a bit confused about how my Wireless connection (wlan0) is being ...
5
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2answers
10k views

How to find out which Wi-Fi driver is installed?

I know about lsmod, but how do I figure out which driver does what?
5
votes
1answer
4k views

Where are NetworkManager's WiFi settings stored?

I remember the days of playing with /etc/$WE/wpa_supplicant.conf to try and force a semi-secure network on a debian based system, but now on to xubuntu, I haven't needed to do any *.conf-ing in a ...
5
votes
1answer
540 views

How to confirm/verify WiFi is WPA2?

How do I, from the command line, confirm on the host that the wireless network connection uses WPA2? The wireless router is set to use WPA2 Personal (WPA2 with a pre-shared key) and AES on the ...
5
votes
2answers
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What's the next step in troubleshooting this wireless connection failure?

I just installed Ubuntu 10.04.3 to dual-boot with Windows. I can connect to the Internet using a wired connection, but not through wireless. The first time I booted, the wireless notification bar ...
5
votes
2answers
747 views

escape characters in /etc/network/interfaces

I want to be sure that whatever string I pass into the line wpa-ssid "abc" in /etc/network/interfaces won't be used to break out of the configuration. All I can find in the manual is that \ can be ...
5
votes
3answers
1k views

How can I tell if my wifi dongle has access-point capabilities?

I have a Realtek 8191SU USB wifi dongle for use on my Raspberry Pi. I'm trying to set up a wifi access point using this tutorial. However, I'm running into a few errors, and I suspect it might be ...
5
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1answer
3k views

Hotspot and Internet access together — why not?

If I try to set up an hotspot in GNOME, I get the following message: If you have a connection to the Internet other than wireless, you can use it to share your internet connection with others. ...
5
votes
2answers
2k views

Use wpa_supplicant without plain text passwords

I'm running gentoo on my laptop, and I'm currently using wpa_supplicant to handle wifi. My configuration works and I can connect, but it is required to type in the plain text password into the ...
5
votes
2answers
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how is the file /proc/net/dev filled?

So, I'm writing a kernel module that needs stats about local network interfaces and I came up with the following code ... everything works fine except for the part where I try to read wireless device ...
5
votes
1answer
63 views

Why is every wifi networks' signal strength always identical?

Right now I'm using wavemon to look at wifi networks in the area, but it doesn't matter what tool I use: The signal strengths of every wifi network I can see are always identical to each other. They ...
5
votes
1answer
834 views

Create a wifi hotspot on Gnome 3 / Arch Linux

I'm trying to create a wifi hotspot in gnome shell and Arch Linux. I open "System Settings" > "Network", then I select "wifi" on the LH side and click "Use as Hotspot..." on the bottom. The system ...
5
votes
1answer
814 views

Wi-Fi with WEP from command line in Ubuntu 12.04, Kernel 3.8.0-29-generic

I have removed network-manager and am trying to configure Wi-Fi with WEP manually. I am running on an X1 Carbon. Here are the commands I am running: ifconfig wlan0 down iwconfig wlan0 essid ...
5
votes
1answer
3k views

Monitor mode wifi only seeing broadcast packets

I have pretty much exhausted every link I have found on google regarding this topic, and I'd like some of the most experienced eyes on the problem, because something obscure must be going on. Systems ...
5
votes
1answer
452 views

How can I setup a wifi access point to only allow users if they accept an EULA?

I need to setup an access point to only allow users through if they first accept an EULA. To make things slightly simpler, I'm looking into doing this with a unix machine that shares the connection ...
5
votes
1answer
910 views

pppoe connection keeps disconnecting every 30 seconds

I have hotspot connection. We first connect to wireless and enter a username / password on pppoe connection with windows. When I use the ubuntu (11.04) I have to use pppoeconf module. Today I setup ...
5
votes
1answer
4k views

How can I solve wifi connection problems between Arch Linux and a WPA2 network?

My home network uses WPA2 for encryption. To connect to it from my Arch Linux insallation, I first tried using NetworkManager, however, that only managed to connect for a minute at most before ...
5
votes
2answers
153 views

Lenovo t440s fedora 20 WiFi authentication problem

In some WiFi networks, consistently in hotels so far, my computer cannot connect and prompts that authentication failed, when the password is correct. This is a very annoying problem that I don't know ...
5
votes
0answers
564 views

Unable to reconnect to a WiFi network on Fedora 20?

Problem After leaving my Fedora 20 laptop running overnight, I open it back up and it prompts me to re-enter the password for my home WiFi network. The password is already typed in and censored, but ...
5
votes
3answers
4k views

Is there a way to list the connected devices on my wifi access point?

I have an Angstrom Linux device acting as an access point, running hostapd, dhcpd, which works fine. Can I get a list of devices connected to the Wi-Fi? I know I can get the DHCP leases, but I need to ...
4
votes
2answers
1k views

How to override port settings when connecting to a public wifi?

I am connecting to a free public wifi, I want to connect or use other ports like FTP and SSH. What are the possibility to override it? In order to connect to the internet, They are requiring me to add ...
4
votes
1answer
3k views

How to connect a KVM guest to the internet with wireless

Because my wireless network adapter does not support bridging, it is really difficult to get the guest VM to connect to the open internet and have an IP address in the same network as the host. I am ...
4
votes
2answers
3k views

How to permanently connect to WPA2AES wifi with OpenBSD (through cli)

I have an OpenBSD 5.1 i386 installed. I have no GUI/X. I googled for the answer but I can't find authentic one. How can I connect to a WPA2 PSK/AES wifi network using only the terminal? (so I don't ...
4
votes
2answers
7k views

'iwlist' -> interface doesn't support scanning (Ubuntu LTS 10.04)

I am using Ubuntu 10.04 (LTS) on a Samsung N150+ netbook. I cannot scan wifi networks using iwlist and I would like to do so. Here is the output from some tests: ...
4
votes
1answer
4k views

Using the Wifi of a notebook via ethernet for another PC

I want to connect a PC to the internet via my notebook, which is connected to a WLAN. The setup should look like the following scheme: PC (eth0) -> Notebook (eth0) -> Notebook(wlan0) -> ...
4
votes
3answers
1k views

SCP works, but SSH doesn't (over wifi)

As the title says, when I'm using wifi at my office, I'm able to copy files to and from my server using SCP, but for some reason SSH is non-responsive. It just hangs, doesn't print anything, and I ...
4
votes
2answers
1k views

What tools do I need to intercept and change an incoming packet on a WP2-Personal wifi hub

Which tools should I research into to intercept a plain text packet, edit it and then continue it on it's way. I am using Ubuntu 11.04 and Backtrack 5; my wifi is WPA2-person encrypted. I need to edit ...
4
votes
1answer
1k views

Set up an access point

I have a laptop with an Atheros card and I want to use it as a wireless access point. I need an AP with WPA/WPA2 encryption for testing purposes; I don't need any routing functionality or anything ...