What about Aliyun server bandwidth running full?

　　Bandwidth running full

There are a number of reasons why server bandwidth is running full, which can be summed up in the following categories:

Virus

A virus or site hangs in a Windows system server, causing a file to be outsourced within the server.

It is recommended to install antivirus software on the server to disinfect the virus. You can view the exception process through Task Manager. Currently Aliyun does not provide antivirus software, you can login to the server according to their daily use of anti-virus software installation can be.

Network attacks

A server or site that suffers from DDOS attacks or CC attacks, and so on, generates a large amount of access requirements in the short term.

You can log on to the Aliyun management console to see if the protection DDOS attack in the Cloud Shield adjusts the threshold and verifies that CC protection is turned on.

Currently CC protection has its own default threshold, which is temporarily closed due to security issues. If the attack does not trigger to the threshold, the cloud shield is not cleaned, you can submit the work order to the sale, please hand-help open cleaning, later the adjustment threshold function will be placed externally. Yun Dun View can refer to the following:

There is a resource-consuming process

There is a cost source process within the server.

Windows Server 2003 systems are not directly visible, but can be viewed with the help of third party software;

Windows Server 2008 System can launch Task Manager > Performance > Resource Monitor > Network > View Send (Bytes/sec) to take up more process. If it is not a common process, it may be a virus or an exception file, and if it is a common process, the process currently has an exception and needs to be analyzed for the service corresponding to that process.

According to past experience, has been found in Sogou Pinyin update, as well as suspected upload local thesaurus caused by the network bandwidth run high.

Crawler

Normal Web sites consume more bandwidth, such cases are recommended through the log to visit the analysis, if the log too much baiduspider or Googlebot. Description of the web crawler crawled, a large number of links from search engines are also easy to run high bandwidth, such as:

Log of IIS is found under Windows-cmd, you can use the command type *.log | Find "Baidu" and so on.

Linux Apache and Nginx can check cat Access.log | grep Baidu and so on.

At the same time check whether the site has large files such as mp3,flv,swf are frequently accessed to download, if such files are more, the proposed reduction of these files, can be paired with OSS, CDN services.

Large scale website

Site size (such as portals, shopping malls, etc.), that is, the site itself to visit the demand for large, view the site's Page view value, Hits value, daily traffic is very high, recommended to upgrade bandwidth.

The main causes of large flow of traffic are:

Web page design is unreasonable

The page contains large pictures or audio, video files and other files, resulting in too large site page.

The website provides the downloading of files such as Mp3,.rar,.zip.exe, or the website provides video, audio file playback.

If the site is large, the site has a high rate of clicks, it is recommended to reduce audio, video files. If you cannot meet your requirements, you can upgrade your bandwidth.