I. Soft Switch of the optical drive:Eject-r cdrom: Open the warehouse door of the specified optical drive device. If there is only one optical drive, use eject directly. If there are two optical drive devices, specify the device according to the/dev/device file, for example, if there is a combo cdrom on my machine and the device file is/dev/cdrom1, run it with eject-r cdrom1.
Use the-t parameter to close the warehouse. For example, close my COMBO and run the following command: eject-t-r cdrom1.
the browser. So when the buffers are present, we have to use both ob_flush () and flush (). $file=fopen($file _path, "R");//opens the specified file, R represents read-only, and returns false if not found while(!feof($file))//determine if there is { //send The current file part to the browser Print fread($file,round(3000 * 1024));//Top Download speed 3MB//flush the content to the browser Flush();//Pass to Browser//
_path)); Header(' Content-transfer-encoding:binary '); Header(' expires:0 '); Header(' Cache-control:must-revalidate, post-check=0, pre-check=0 '); Header(' Pragma:public '); Header(' Content-length: '.filesize($file _path)); Ob_clean();//Ob_clean This function is used to discard the contents of the output buffer, if your site has a lot of generated files, you want to access the correct, you should always clear the buffer Flush();//the difference between ob_flush () and flush (). The former
Time Limit: 2 seconds memory limit: 65536 KB
Bill and Ted are taking a road trip. but the odometer in their car is broken, so they don't know how many miles they have driven. fortunately, Bill has a working stopwatch, so they can record their speed and the total time they have driven. unfortunately, their record keeping Strategy is a little odd, so they n
now a lot of resources are shared with Baidu Cloud, but for different users Baidu's attitude is not the same. Charge customers can enjoy the supremacy of unlimited speed courtesy, and most ordinary customers can only look at their 10M, 20M of fiber on the day running 100~200kb/s snail. In fact, this speed limit Baidu Cloud can also be a breakthrough, today small
There is an old project, through squid to provide file download function, the use of delay_parameters to achieve bandwidth control, the problem is that I do not turn Squid, and then calculate whether the Nginx can find similar functions.
The good news is that Nginx provides limit_rate and Limit_rate_after, for example, to illustrate:
Copy Code code as follows:
location/download/{
Limit_rate_after 500k;
Limit_rate 50k;
}
The meaning is: User download reaches 500k, the
Nbsp; 1. soft switch of the optical drive: eject-rcdrom. open the warehouse door of the specified optical drive device. if there is only one optical drive, use eject directly, if there are two optical drive devices that specify the device according to the/dev/device file, for example, there is a COMBOCDROM on my machine, and the device file is/dev/cdrom1, use eject-r
I. soft switch of the optical drive:Eject-r cdrom: Open the warehouse door of the specified optical drive device. if there is only
location/download/{root HTML;Limit_rate 100k;#限制用户的速率为100KB/s Limit_rate_after 5m;#当用户下载5m内容时, start speed limit autoindex on;# display directory autoindex_exact_size off;# Displays the file size (actual size, in bytes, default on), and displays the size in m/k when set to OFF.Autoindex_localtime on;# Show file time (default is off, GMT time displayed), can be set to ON, LocalTime time is displayed. }This a
Use iptables in the Linux gateway to set a simple speed limit for users in the network. You can use the following script. .#! /Bin/bashfor (I = 1; I
Do
/Sbin/iptables-a forward-s 192.168.2. $ I-m limit-limit 60/S-J accept
/Sbin/iptables-a forward-s 192.168.2. $ I-j drop
When the done traffic is less than 60/s, ipta
(' content-transfer-encoding:binary ');Header (' expires:0 ');Header (' Cache-control:must-revalidate, post-check=0, pre-check=0 ');Header (' Pragma:public ');Header (' Content-length: '. FileSize ($file _path));Ob_clean (); Ob_clean This function is used to discard the contents of the output buffer, if your site has a lot of generated files, you want to access the correct, you should always clear the bufferFlush (); The difference between ob_flush () and flush (). The former is the release of
The day before yesterday, I published a spoof article to make people fall offline. It is still not good to think about it. After all, a dormitory, all the methods brought about today are absolutely useful to restrict him from watching PPS, so your network speed will naturally be better.
First: P2P Terminator
Download: asp? Field = SoftName ClassID = keyword = p2p % D6 % D5 % BD % E1 % D5 % DF "> http://www.bkjia.com/Soft/Search.asp? Field = Soft
When you are doing O M, you will often encounter a problem, that is, someone downloads something in the office, affecting Internet access and office work. If the same problem occurs on the server, it is estimated that the boss will get angry and things will get worse ...... Today, I would like to recommend several lines of code to limit the network speed of PHP. I hope to help you.[Code][PHP] Code view sou
When you are doing O M, you will often encounter a problem, that is, someone downloads something in the office, affecting Internet access and office work. In the same case, if you encounter a problem on the server, you may often encounter a problem, that is, someone downloads something in the office, affecting Internet access and office work. If the same problem occurs on the server, it is estimated that the boss will get angry and things will get worse ...... Today, I would like to recommend s
This article mainly introduces the PHP implementation limit download speed example, need friends can refer to the following nbsp; Code as follows://local file, should be send to the client $local _file = ' test-file.zip '; nbsp;//filename that the user gets as default $download _file = ' your-download-name.zip '; nbsp;//Set the download rate limit (=gt; 20,5 kb
.. Examples:
Server speed limit uplink and down behavior for IP 125.91.9.* 100M
MLS QoS (QoS enabled)
Access-list Permit host 125.91.9.* (Access list 10)
Access-list permit IP any host 125.91.9.* (Access list 100)
Class-map user1-up (Define upstream class and bind ACL)
Match Access-group 10
Exit
Class-map User1-down (Define downlink class and bind ACL)
Match Access-group 100
Exit
Policy-map user1
Cisco 3560 vswitch Port Speed Limit1. The network indicates that PC1 is connected to Cisco3550 F0/1 at a rate of 1 M. PC1 is connected to Cisco3550 F0/2 at a rate of 2 M. The G0/1 of Cisco3550 is the egress. Ii. Detailed configuration process Note: Each interface supports only one policy in each direction. One policy can be used for multiple interfaces. Therefore, the download speed
Local file that should is send to the client
$local _file = ' test-file.zip ';
filename that the user gets as default
$download _file = ' your-download-name.zip ';
Set the download rate limit (= 20,5 kb/s)
$download _rate = 20.5;
if (file_exists ($local _file) is_file ($local _file)) {
Send headers
Header (' cache-control:private ');
Header (' Content-type:application/octet-stream '
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