checked. If the last modification time exceeds 1440 seconds (the value of gc_maxlifetime ), delete it, which means that these sessions expire.
1. How does a session exist on the server (generally Apache with PHP module?
By default, php stores the session in the/tmp directory. The file name is as follows: sess_01aab840166fd1dc253e3b4a3f0b8381. Each file corresponds to a session ).
more /tmp/sess_01aab840166fd1dc253e3b4a3f0b8381username|s:9:”jiangfeng”
: After the Java program is started, it will java.io.tmpdir generate a similar folder in the specified directory, the temporary folder, in hsperfdata_User this folder (in Linux for/ tmp/hsperfdata_{username}/), there are several files, the name is the PID of the Java process, so list the currently running Java process, just the file in this directory is listed. As for the parameters of the system, you can parse the files.[Email protected]:/tmp/hsperfdata_hollis$ pwd/tmp/hsperfdata_hollis[email p
In php, session is a global variable on the server that can be transferred between pages. Therefore, session is often used for Logon verification by server-side User Members. session Security is also very high, next I will introduce the basic php session knowledge.
What do you think about sessions? I don't know whether you have studied it. Today, Dana's php training teacher wants to share some content in this area with you. I hope you will like it.How long is the session lifecycle?
1. When the b
checked, and if the last modification time is now more than 1440 seconds (gc_maxlifetime value), it is deleted, which means that the session expires.1. How does the session exist on the server side (typically Apache with PHP module)?By default, PHP will save the session in the/tmp directory, the file name looks like this: sess_01aab840166fd1dc253e3b4a3f0b8381. Each of the files corresponds to a session.more/tmp/sess_01aab840166fd1dc253e3b4a3f0b8381Us
this number of seconds, stored data will be seen as 'garbage' and; Cleaned up by the garbage collection process.Http://php.net/session.gc-maxlifetimeSession. gc_maxlife time = 1440; NOTE: If you are using the subdirectory option for storing session files; (See session. save_path above), then garbage collection does ** not *; Happen automatically. You will need to do your own garbage; Collection through a shell script, cron entry, or some other method
a "session recycle". If "Session recycling" occurs, then the/tmp/sess_* file is checked, and if the last modification time is now more than 1440 seconds (gc_maxlifetime value), it is deleted, which means that the session expires.
1. How does the session exist on the server side (typically Apache with PHP module)?
By default, PHP will save the session in the/tmp directory, the file name looks like this: sess_01aab840166fd1dc253e3b4a3f0b8381. Each of
default address is the repository storage directory address.
Access setting group
The deployment policy is used to configure the deployment policy of the Repository. The options include read-only (deploy prohibited), disabled redeployment (the same component can only be deployed once), and allowed redeployment.
Allow file browsing indicates whether to allow browsing of repository content
Include in search indicates whether to index the repository and provide search
Publish URL is used to contro
he wants to do and get a lot of information that they want to get.Second: Some basic knowledge of sessionIn PHP, the session is a server global variables can be implemented between the page passed, so the session is often used for server-side user login verification, session security is very high, let me introduce the basic knowledge of PHP session.How long is the session's life cycle?1: the end of the browser's life cycle ends at the same time, but the archive still exists in/tmp/(Sess_???)2:
middle of a device can not handle the large package, this and the MTU does not have a relationship, it may be that it cannot handle or fundamentally do not want to deal with large packets, how big? Anyway, 1480 of the package can not handle, minus the IP header, TCP header, the remaining is 1440 of the pure data. Then write a simple TCP client program, sent immediately after the TCP handshake (in order to prevent the active disconnection due to not t
device can not handle the large package, this and the MTU does not have a relationship, it may be that it cannot handle or fundamentally do not want to deal with large packets, how big? Anyway, 1480 of the package can not handle, minus the IP header, TCP header, the remaining is 1440 of the pure data. Then write a simple TCP client program, sent immediately after the TCP handshake (in order to prevent the active disconnection due to not the client he
:/soft/eclipse-jee-galileo-win32/eclipse/gc.log-xms512m-xmx512m-xx:newsize=256m-xx:maxnewsize=256m-xx:permsize=96m-xx:maxpermsize=96m-xx:+disableexplicitgc-xx:compilethreshold=100-xverify:none-xx:+useparnewgc-xx:+useconcmarksweepgc-xx:cmsinitiatingoccupancyfraction=80http://blog.csdn.net/gtuu0123/article/details/6720253Refer to the Eclipse.ini for the above content:1, small memory, good running situation-clean-startupPlugins/org.eclipse.equinox.launcher_1.3.0.v20130327-
Because of the resolution of many users today, resulting in a lot of ads will block the content or different resolutions for different user CSS styles, you can refer to the following code
Generally we can judge the resolution by the following code
Copy Code code as follows:
function Redirectpage () {
var wjb51=screen.width;
var hjb51=screen.height;
alert ("detected by system, your screen resolution is" + wjb51+ "*" + hjb51 + "by script house Jb51.net");
}
//End--gt;
JS to deter
Many people on the Web have answered: Modify the session.gc_maxlifetime in the PHP configuration file. If you want to learn more about the session recycling mechanism, read on. (This article Environment php5.2)Overview: each time a PHP request, a 1/100 probability (the default) triggers a "session recycle". If "Session recycling" occurs, the/tmp/sess_* file is checked, and if the last modification time is now more than 1440 seconds (the Gc_maxlifetime
flashback_on
--------- ----------- ------------------
DBA 0 YES
(4) Set initialization parameters: Db_flashback_retention_target:
Sql>alter system set db_flashback_retention_target=1440 Scope=both;
This parameter is used to control the time that the Flashback log data is retained, or the earliest point in time that you want the flashback database to recover. The default value is 1440, the unit is minu
two Fastline curves to the Series property page (see figure below)
Navigate to the Tools property page and add some related tools (see figure below)
The preparation is complete, we now start to write Add program data method programming, here adopt the method of adding random number (0-300 of random number)#define GETRANDOM (min, max) ((rand ()% (int) (((max) +1)-(min)) (min))Here, when the curve is initialized, the control's ADDXY interface is added to the random number of
Watermark Wallpaper consists mainly of two large sections: water and water droplets. The watermark is done directly with a set of filters, and the drop part needs to be drawn with a brush and a selection.
Final effect
1, a new 1440 * 900 pixel, resolution of 72 of the canvas. Select the Gradient tool, the color settings are shown in Figure 1, and then pull the radial gradients shown in Figure 2 from the center to the cor
.
Session.gc_maxlifetime = 1440
; Note: If you use the subdirectory option to save the session file
; (Look at the session.save_path above), then garbage collection will not * happen automatically.
; You need to handle garbage collection yourself through a shell script, cron, or some other method.
; For example, the following script is equivalent to setting Session.gc_maxlifetime to 1440 (
d:/tmp/sess/s/M *.rar/d -7/c "cmd/c del @path"
Here is an explanation given in the php.ini
After this number of seconds, the stored data will be treated as "garbage",Clean up the garbage collection process.session.gc_maxlifetime = 1440
Note: If you are using subdirectory options for storing session files (see session.save_path above), then garbage collection does not * * * occurs automatically. You will need to do your own garbage col
modification time is now more than 1440 seconds (the Gc_maxlifetime value), it is deleted, meaning that these sessions expire.
1. How does session exist on the server side (typically Apache with PHP module)?
By default, PHP saves the session in the/tmp directory, and the file name looks like this: sess_01aab840166fd1dc253e3b4a3f0b8381. Each file corresponds to a session.
more/tmp/sess_01aab840166fd1dc253e3b4a3f0b8381
username|s:9: "Jiangfen
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