Apache as the most widely used Web server and the most stable open source server software, its working mode there are many, there are two main modes: Prefork mode and worker mode Prefork mode: This multi-channel module (MPM) implements a non-threading, pre-derived Web server, which is a working style similar to Apache 1.3. It is suitable for systems that do not have thread-safe libraries and need to avoid t
apache| Resolve the Symptom:
On a single server, start the Apache process with the Wacos user, and use the command immediately after startup Ps–ef | The grep httpd can see that a process is started, but a later access to the Web interface will make an error, and then use the command Ps–ef | grep httpd, the discovery process has been down.
After you ask the onsite engineer what you have done, you know that t
Just today yesterday morning when the teacher said a little bit, as to expand and improve it.
2. Operation Stage
2.1 Running Phase Overview
In the runtime, Apache's main job is to handle the user's service requests.
At this stage, Apache abandons the privileged user level and uses normal permissions, primarily based on security considerations, to protect against vulnerabilities caused by code flaws. Like Microsoft's IIS has been subjected to "Code Re
Apache + Tomcat Cluster configuration detailed (1)
first, software preparation
Apache 2.2:http://httpd.apache.org/download.cgi, download MSI installer, select No SSL version
Tomcat 6.0:http://tomcat.apache.org/download-60.cgi, download tomcat 6.0.18 zip file
Note: Because the Apache and Tomcat project-related modules are in continuous development and optimization
#安装JDK1. Check if the system installs the JDK and uninstallRpm-qa | grep javatzdata-java-2013g-1.el6.noarchjava-1.7.0-openjdk-1.7.0.45-2.4.3.3.el6.x86_ 64java-1.6.0-openjdk-1.6.0.0-1.66.1.13.0.el6.x86_642. Delete PackageRpm-e--nodeps tzdata-java-2013g-1.el6.noarchrpm-e--nodeps java-1.7.0-openjdk-1.7.0.45-2.4.3.3.el6.x86_64rpm-e-- Nodeps java-1.6.0-openjdk-1.6.0.0-1.66.1.13.0.el6.x86_643. Copy the Jdk-6u35-linux-x64.bin to the/usr/local/java directory (mkdir Java)chmod +x Jdk-6u35-linux-x64.bin./
What is the working mode of apache? My personal understanding: apache's working mode is the memory allocation and usage of processes and threads during apache runtime. For example, if a user accesses apache, apache enables a process... what is the working mode of apache?
My
HTTP IntroductionHTTPD is the main program of the Apache Hypertext Transfer Protocol (HTTP) server. is designed as a stand-alone background process that establishes a pool of child processes or threads that process requests.
HTTPD characteristics
Highly modular: Core+modules
Dso:dynamic Shared ojbect dynamic Add/Unload
Mpm:multi-processing module multi-channel processing modules
Virtual Host: Ip,port,fqdn
CGI: Universal
。
In this case, the only authentication mechanism that is guaranteed to be available on the WWW is provided by HTTP itself. The standard Apache server implements such a certification that it can control which hosts may access a particular site or a part of the feature site.
This certification can be divided into two types, one is host-based authentication, the other is based on user name/password authentication. Since the IP addresses of most users
First, check the Apache virtual host module
Apache to configure the virtual host, you need to first see if Apache compiles the Vhost_alias_module module. Of course, Apache has already compiled the module by default, and we can see whether the module has been compiled by the following command, as follows:
/usr/local/a
Look: This article is for friends who want to set up a secure web platform on the Win2K platform.
The required program:
Apache
http://www.apache.org/dist/httpd/binaries/win32/
We choose Apache_1.3.28-win32-x86-no_src.msi, or Apache_2.0.47-win32-x86-no_ssl.msi.
All available, do not use the lower version of the program, they are flawed, very vulnerable to attacks on the Internet
Php
Http://cn2.php.net/get/php-4.3.3-Win32.zip/from/a/mirror
php-4.3.3
++redistributableforvisualstudio2012 first.V11 is a component of Microsoft, if not installed, it will prompt Msvcr110.dll lost.Download Link: http://www.microsoft.com/zh-CN/download/details.aspx?id=30679Please download 64bit, restart the computer after the installation is complete2:apache2.4.9, download Link: http://www.apachelounge.com/download/It is also recommended for v11,64 bit.3:mysql 5.6.19, download link: http://dev.mysql.com/downloads/mysql/It is also recommended Mysql-5.6.19-winx64.zip
Compensation system ArchitectureThe Nginx is converted to an external IP after receiving the request, then forwards the request to Tomcat, and there is a way to forward it to Apache, or to an application server in another language.Ngnix: is a Web server that accepts and forwards requests with no dynamic processingthe browser directly requests CDN (Money with CDN, no money with file server);CDN content distribution network full name is content Delivery
Original address: http://www.bbtang.info/linux/web/821.htmlA. Software introduction (Apache lighttpd nginx)1. lighttpdlighttpd is a feature with very low memory overhead, low CPU usage, good performance, and rich modules. LIGHTTPD is one of the best in many opensource lightweight Web servers. Support FastCGI, CGI, Auth, output compression (outputs compress), URL rewriting, alias and other important functions.LIGHTTPD uses fastcgi to run PHP, which use
++redistributableforvisualstudio2012 first.
V11 is a Microsoft component that prompts Msvcr110.dll to be lost if it is not installed.
Download Link: http://www.microsoft.com/zh-CN/download/details.aspx?id=30679
Please download the 64bit, after the installation is complete, please reboot the computer
2:apache2.4.9, download Link: http://www.apachelounge.com/download/
The same is recommended v11,64 bit.
3:mysql 5.6.19, download link: http://dev.mysql.com/downloads/mysql/
The same is recomme
What is the working mode of apache?My personal understanding: apache's working mode is the memory allocation and usage of processes and threads during apache runtime. For example, if a user accesses apache, what if apache enables a process to process user requests? Or is a thread enabled in an existing process to proce
Three types of MPM and configuration of ApacheFirst, MPM is Multi-Processing Modules, which represents the multi-processing module in Apache, and currently includes three modes in Apache 2.2/2.4 on Linux: Prefork, worker, and event mode.1.workerA worker is a multi-process multithreaded model in which a process has multiple threads, and each thread processes a connection. Worker mode saves system memory reso
Apache Optimization steps:
1, first look at Apache operating mode, view the command:
Httpd-l
Compiled in Modules:Core.cPrefork.cHttp_core.cMod_so.cHere you can see that the run mode is Prefork mode.
2, modify the Apache httpd.conf configuration
This article is 512M memory and equipped with Apache VPS optimization,
Look:php often work with Apache Web servers for Linux/unix platforms. When we install PHP in the Apache environment, you have three installation modes to choose from: Static module, dynamic module (DSO) and CGI.
I suggest you better install PHP as apached DSO, this installation mode of maintenance and upgrade are fairly simple. For example, suppose you originally installed only the PHP database support fun
Apache Log Configuration
Sometimes we need to customize the format and content of the Apache default log, such as increasing or decreasing the information logged by the log, changing the format of the default log file, and so on. This article describes all the information you can use with logging, and how to set up Apache to record this information.
First
If you are not loading this module, if you are a Linux server, then you will need to recompile Apache
, compile with parameter--enable-module=so, if you are a Windows system.
, no need for any compilation, just put the time just said LoadModule Status_module
modules/mod_status.so This sentence plus, if the front with a #, open, you need to remove the #
。Http://192.168.99.99/Server-status?refresh=N will indicate that the Access Status page can be per n
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