1. We can use the mouse click "Start-run", in the Open Run window we enter "cmd" press the ENTER key to open the Command Prompt window, as shown in the following figure:
2. Then we can test in the DOS window whether the network is connected, if the IP of other machines is 192.168.1.10, we can ping 192.168.1.102-t,-t is always ping, as shown in the following figure:
3. If we want to detect the speed, t
IOS network detection Reachability uses Demo to detect 2, 3, 4G, iosreachability
You can download this Demo https://github.com/JanzTam/Reachability_Demo At Github
First, introduce the Reachability class of the system. If you do not know how to introduce it, In Xcode, press shift + command + 0 and search for Reachability. You can see the project selected in the figure and download it.
Reachability.png and i
By continuing to ping between two remote nodes, you can detect whether the network quality is stable.The following approach is to ping once per second, one log per day.One, ping script/opt/pinglog.sh, with logging#!/usr/bin/env Bashif [!-d/var/log/ping];then mkdir-p/var/log/pingfipkill-f "/bin/ping-i 1 192.168.1.10" | |Sleep 1/bin/ping-i 1 192.168.1.10 | awk ' {print strftime ("%y%m%d%T", Systime ()), "src
NewThread (NewRunnable () {@Override Public voidrun () {//record thread start time LongCurrentTime =System.currenttimemillis (); //Request Network//... Omit Code//End Time LongStopTime =System.currenttimemillis (); //time interval LongTime = stoptime-currenttime; //interval is less than page dwell time, thread hibernation, sleep time = dwell time-The time the code has been executed if(time) {
In general, we have to purchase the VPS host must also do a little simple test performance, such as checking the basic configuration is not the time we buy the merchant label configuration, as well as network node ping speed, as well as the network node download file speed, The experience of these parameters is to a certain extent also determines the current purchase of VPS server stability and cost-effecti
, which are exactly what we Configured the scheduled task to do.Since We know the alert would always send the same values in the same order, i.e. name, date, counter, threshold, and value , we can just pull them from the command line arguments based on position and pass them to the SendMail () function.Note that there is more robust ways to process command line arguments, and this should is sufficient for your purposes.
Send email alert from performance Monitor using PowerShell script (t
[Delphi] A function that checks if a URL is valid
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functionCheckUrl(url:string):boolean;varhSession, hfile, hRequest: hInternet;dwindex, dwcodelen: dword;dwcode:array[1..20]ofchar;res:pchar;beginifpos(‘http://‘, lowercase(url)) =0 thenurl :=‘http://‘+ url;Result :=false;hSession := InternetOpen(‘InetURL:/1.0‘, INTERNET_OPEN_TYPE_PRECONFIG,nil,nil,0);ifassigned(hsession)thenbeginhfile := InternetOpenUrl(hsession,pchar(url),nil,0, INTERNET_FL
Background information:
In debugging the network, often need to detect the maximum bandwidth between the two hosts, I have been using the Iperf command, the effect is very good and accurate, but found some Yun-wei friends do not know that there is this tool, so intend to write a brief introduction to the article.
Specific actions:
Operating system: CentOS6.5 x86_64 MinimalServer:192.168.10.11192.168.10.1
Open the CMD window, Start Menu-open programs and files-cmdPing 127.0.0.1. If the connection fails, it indicates a problem with the local Nic or protocol stack.
Ping the gateway to check whether it is a LAN problem.
Ping the remote route. Detects Intranet/Internet connections.
This article from "old books often read New Ideas" blog, please be sure to keep this source http://ramboking.blog.51cto.com/3596215/1543704When the PC cannot access the Internet, how can I
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