Determine if the network connection is available and monitor network status in Android font: [Increase decrease] type: Reprint to obtain the network information need to add the appropriate permissions in the Androidmanifest.xml file, the next detail on the Android to determi
requiring network state checks to provide users with the necessary reminders. It is generally possible to complete the work by Connectivitymanager.
Connectivitymanager has four main tasks:
1, monitor the status of mobile phone network (including Gprs,wifi, UMTS, etc.)
2, mobile phone
Use a system approach to monitor network status
The method of system is to realize the monitoring of network state through notification mechanism.
Steps to implement network status monitoring
Define a member v
==networkinfo.state.connecting) { Toast.maketext (this, "Current network status is Wi-Fi", toast.length_short). Show (); }}In the Wi-Fi status switch to the mobile state there will be a gap is no network, so need to let the program sleep 0.6 seconds to let the program only display mobile toast, the time depends on the
Android Monitor network status When we use an Android phone, some apps need a network environment to run, so the phone needsavailableNetwork, whether it is 2G, 3G or WiFi, even some of the more consumption of the app can only operate in the WiFi environment, or provide users to choose whether only in the WiFi environm
In vs2005, we can use the new my function and the timer component to monitor the local network connection status in real time,
Code As follows:
If my. Computer. Network. isavailable = false then
Me. label1.text = "connection to network server: disconnected"
Me. textbox1.tex
busy. The number of concurrent connections to a website is how many clients are attached at the same time.
Linux under Grab Bag
Grab Bag Tool tcpdump
There is no need to install this command: Yum install-y tcpdump
Specify the NIC name Tcpdump-nn-i ENS33
After running the above command, there will be a dense string of strings, before pressing CTRL + C, these strings have been brushing the screen, the faster the brush screen indicates more p
of the process (directory)--"for the benefit of other virus intrusion view illegal process." Stat Description:D a process that cannot be interruptedThe process of R run stateS Process in sleep stateT pause, Stop the processZ Zombie Process+ Foreground ProcessN Low-priority processesMemory paging is locked in memoryS master ProcessL Multithreading ProcessView network StatusNetstat (view TCP/IP communication status
. The disadvantage is that the name of the process is not displayed.Linux under Grab BagGrab Bag Tool tcpdumpSee which packages are coming in. And the flow of data, length. The default is TCP packets, if you find a lot of UDP packets are likely to attack. Eg DDos UDP flood. Access to professional anti-attack devices or services only.TCPDUMP-NN NIC Name-nn the first n means that the IP is displayed as a number without displaying the hostname.Time source IP and port > Destination IP and port: Pack
Tags: monitoring io performance FREE Command PS command View network status Linux under Grab BagMonitoring IO PerformanceIntroductionThe Iostat is primarily used to monitor the IO load on the system device, iostat the statistics from the start of the system startup when the first run, and then running Iostat displays statistics from the last time the command was
state of the process).STAT (Status of the process) is:D cannot be interrupted.R (run) running process (CPU is used within a time period).The S (sleep) process may be paused and will be activatedT paused process (CTRL + Z paused process)+ Foreground ProcessZ Zombie ProcessN Low-priorityMemory is locked in memory pagingS master ProcessL Multithreading ProcessPS aux usage: see if a process is running (it has been used once) to see if top is runningps au
Use Opserver to monitor your ASP. NET project series (3. Monitor your server status), opserverasp.net
Preface
I have had two articles on how to monitor ASP. NET core projects. If you are interested, please refer to them.
Cross-platform real-time performance monitoring based on ASP. NET Core
Cross-platform real-time
Original: Use Opserver to monitor your ASP. NET Project Series (third, monitor your server status)before wordsThere have been 2 articles on how to monitor the ASP. NET Core project.Today we mainly introduce how to use Opserver to monitor the state of our servers.The Opserver
Turn off the monitor VGA1Xrandr--output VGA1--offTurn on the monitor VGA1Xrandr--output VGA1--autoTurn off the monitor LVDS1Xrandr--output LVDS1--offTurn on the monitor LVDS1Xrandr--output LVDS1--autoOpen VGA1 and Close LVDS1Xrandr--output VGA1--auto--output LVDS1--offTurn off VGA1 and open LVDS1Xrandr--output VGA1--of
directory, enter "Scollector-windows-amd64-h docker-server-ip:8070" in the command windowThe following information is displayed to establish a connection to the Bosun service. The command is as follows:C:\>scollector-windows-amd64-h 192.168.1.101:80702016/11/18 15:59:19 Info:main.go:213:opentsdb host:http:// 192.168.1.101:8070You can then see this server information in the Bosun items interface.written in the lastAt this point we have completed all the operations of the monitoring server. Like,
Recently added system functions need to monitor the status bar hiding and display, a small study of the following combination of data to do the following summary:First I use this windowattributeschanged method to listen to the video playback page status bar hide and display, by printing GetWindow (). GetAttributes (). Flags, gets the page properties to determine
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