Recently participated in an interview with a startup company, they did an application, that is, users open their app to provide free internet access, and then the interview process, the Buddy said, you on the WiFi protocol you understand? Need to use the lower level of things, oh, I'm going to go, just such a network function needs very low ground? Make a very advanced appearance, really the bottom is relat
Android system information retrieval 14: Getting WIFI Hotspot information
When using a Wi-Fi hotspot on an Android device, you need to know the running status of the Wi-Fi hotspot, whether the
This article describes the Android programming implementation setting, the way to open a WiFi hotspot to share for others to connect to. Share to everyone for your reference, specific as follows:
Friends who use fast teeth should know that they are using a WiFi hotspot when
is more. I failed many times and then used the real machine test directly, through WiFi, and thanks to my colleagues for providing their own device testing. This step needs to be noted that when the Android phone opens a port when there is a blocking method we'd better put in the thread to open, after accepting the data we can not update the interface data, this is the location of
1, the phone to get root privileges (my is Xiaomi note, directly download MIUI development version installation can be)2, download in App market ( Terminal Simulator ), install. 3, give (terminal emulator) root privileges. Tip: To test whether it has root privileges, open the terminal emulator, enter the command: Su, return is not "permission Deny" the second time the software obtained root permissions. 4 . Confirm that your real computer and PC a
There was a problem with setting up WiFi hotspots on Ap-hotspot on Ubuntu 14.04 today. After you have configured the SSID and key, run sudo apt-mark hold HOSTAPD after you have been in the sudo apt-mark for HOSTAPD status. Later found a solution, hope to see this article's friends can also successfully solve:First, we install Ap-hotspot:sudo add-apt-repository ppa:nilarimogard/webupd8sudo apt-get updatesudo
Android solves the problem that the mobile phone cannot find the hotspot after the hotspot is opened through custom settings ., Android hotspot
During the development process, the mobile phone cannot find the hotspot after the
Original: http://www.cnblogs.com/sunzhenxing19860608/archive/2011/07/14/2106492.html1. First let the Android phone listen to the specified port:This step requires the use of the shell, so there must be a terminal emulator on the phone, but a lot of online, just look for a line, in turn, typing the following lines:
1234
su//获取root权限setprop service.adb.tcp.port5555//设置监听的端口,端口可以自定义,如5554,5555是默认的stop adbd//关闭adbdstart adbd//重新启动adbd
There is a millet 2A in the hand because the USB port is damaged, can not use the USB cable debugging development, see online said can use WiFi connection debugging, record the method and encountered problems.
The first stepMobile phone installation WiFi ADB : Https://play.google.com/store/apps/details?id=com.ttxapps.wifiadbStep TwoPerform on the computeradb connect 172.27.35.2 //IP替换为手机
How to install the Debug app on Android phone via WiFi 1. The first thing to do is to turn on your phone's USB debugging options and connect your phone via a USB cable.2. Then execute "adb tcpip 5555" to switch adb from USB mode to TCPIP mode. The correct echo message is: "Restarting in TCP mode port:5555". 5555 can be any port number that is not occupied.3. Re-e
default mode: Ubuntu comes with the network manager only schema and Ad-hoc mode, and kubuntu-desktop version of the network manager has an Access Poin mode, and can choose to create wireless (shared), and Ubuntu can only choose New WiFiFifth Step:So we go to install KDE network Manager, set it up, go to Ubuntu Software Center, enter search network, choose Kde-nm-connection-editor installation.Sixth step:After installation, open terminal, Input kde-nm (tab, Auto-complete), enter the popup screen
In the Windows system, to open the AP hotspot, directly from the network management inside, it can be turned on, but very unstable, and the speed is particularly slow. And with ubuntu14.10, it's a lot easier. And it's very stable.Tools/Materials
ubuntu14.10
Method/Step
"Edit link" in Network management
Open "Edit Link", click "Add" button
In the popup dialog box, select "Wi-Fi"
Now configure the network,On the General tab, tick
for "Microsoft Virtual WiFi Miniport Adapter". For convenience, rename it to Virtual WiFi. If not, just update the wireless network card driver is OK.
3. Set up Internet Connection Sharing:In the Network Connections window, right-click a network connection that is connected to the Internet, select Properties → share, and click Allow others. Connect (N) and select "Virtual
System: Ubuntu14.04Method One:Open network connection, create new WiFi, set SSID and password, save after setting up, then connect to hidden WiFi, select the newly established connectionAdvantages: Simple and convenientCons: Built Ad-hoc mode signal, general Android phone is not recognizedMethod Two:Using ap-hotsoptSpecific steps:$ sudo add-apt-repository ppa:nil
In fact, it is simple to create a hotspot, first get to the WiFi service, then configure the hotspot name, password and so on, and then open it through reflection OK.Let's look at the code implementation for creating hotspots:This section is to turn on the WLAN hotspot and can specify its
well as passively collecting some of the broadcast probes sent over the air in public places, running such a device in public cocould very easily harvest contains hundreds of passwords ranging from home to initialize ate in only a few minutes at a suitably busy location. furthermore, as the device has no internet or external connectivity of its own, and the attacker wocould be entirely untraceable.
In my next posting, I will discuss some of the weaknesses we touched upon and how they can be ove
involved through a wired network port. hostapd uses the wireless network card of the notebook to implement wireless routing.Edit the hostapd. conf fileRefer to here for your network card
http://linuxwireless.org/en/users/Documentation/hostap
A simple configuration file:
interface=wlan0bridge=br0driver=nl80211ssid=ssahw_mode=gchannel=11dtim_period=1rts_threshold=2347fragm_threshold=2346auth_algs=3wpa=1wpa_passphrase=12345678wpa_key_mgmt=WPA-PSKwpa_pairwise=TKIP CCMPrsn_pairwise=CCMP
Build a brid
today to get a customer new order requirements, about 40 needs, today first change the system's Bluetooth/WIFI hot/message notification/sleep add never options, respectively:
Bluetooth: Connect the display name, the system interface display name, the default name before renaming
WiFi hotspot: Connect name, rename before default Network name
Notification Popup: S
, HOSTAPD use the wireless card notebook, wireless routing.
Edit hostapd.conf File
Can be based on their own network card, reference here
Http://linuxwireless.org/en/users/Documentation/hostapA simple configuration file:
Interface=wlan0
bridge=br0
driver=nl80211
ssid=ssa
hw_mode=g
channel=11
rts_threshold=2347
fragm_threshold=2346
auth_algs=3
wpa=1
wpa_passphrase=12345678
WPA_KEY_MGMT=WPA-PSK
wpa_pairwise=tkip CCMP
rsn_pairwise=ccmpTo build a network bridge:
sudo apt-get install bridge-uti
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