How to plan a high-capacity Apache server

Article Title: how to plan a high-capacity Apache server. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source.
　　 I. Network Environment
----
| (Eth0: 192.168.11. | (eth0: a. B. c. d)
| A | -------------------- | B | -------------> ISP
-- (Eth1: 192.168.11.5 )--
Web.company.com firewall.company.com
　　
　　
A is a web server inside the lan. Install Redhat Linux 6.xand compile Apache + PHP4 + MySQL
B is the company firewall, and the external address is a. B .c.d, which is the only path to the Internet. B Also runs Apache for reverse proxy to internal machine B. Assume that the company's domain name is @ company.com, and B is the Domain Name Server of this domain.
　　
　　 Ii. Organizational Structure of WEB directories
We plan to place the WEB server data file under a separate directory/www, and then create a subdirectory under it. If we plan to set the WEB server web.company.com, we will create a directory.
/Www/web.company.com with the following structure:
　　
/Www/web.company.com/public/htdocs
/Cgi-bin
/Www/web.company.com/staging/htdocs
/Cgi-bin
/Www/web.company.com/#/htdocs
/Cgi-bin
　　 Iii. Access methods and Virtual Hosts
Use port-based virtual hosts to access the staging and developer directories, corresponding to ports and 82 respectively.
The following is the configuration of the virtual host in the apache configuration file/usr/local/apache/conf/httpd. conf:
Listen 80
Listen 192.168.11.8: 81
Listen 192.168.11.8: 82
　　
<VirtualHost 192.168.11.8: 81>
Documentroot/www/web.company.com/staging/htdocs/
Scriptalias/cgi-bin/www/web.company.com/staging/cgi-bin/
Transferlog "|/usr/local/apache/bin/cronolog/usr/local/apache/logs/web/staging/% Y/% m/% d/access_log"
Errorlog "|/usr/local/apache/bin/cronolog/usr/local/apache/logs/web/staging/% Y/% m/% d/error_log"
</VirtualHost>
　　
<VirtualHost 192.168.11.8: 82>
Documentroot/www/web.company.com/#/htdocs/
Scriptalias/cgi-bin/www/web.company.com/#/cgi-bin/
Transferlog "|/usr/local/apache/bin/cronolog/usr/local/apache/logs/web/developer/% Y/% m/% d/access_log"
Errorlog "|/usr/local/apache/bin/cronolog/usr/local/apache/logs/web/developer/% Y/% m/% d/error_log"
</VirtualHost>
　　
Note: The above is port-based virtual host settings, to access the test server, with http://web.company.com: 81/Development Server with http://web.company.com: 82/above the transferlog and errorlog with not the default format, the year, month, or day format of one file per day is recommended on the Apache website.
Http://httpd.apache.org/docs/misc/FAQ.html#rotate
　　
If other home pages need to be served on this server, for example, creating A subdirectory hr.company.com (Personnel Department) under/www, you can create an IP alias for host A, such as 192.168.11.9, perform the same port-based VM settings.
　　
　　 Personal Homepage information
Assume that Apache runs as a user group and the user's home directory is/home/jephe, public_html is created in this directory.
A. Set the user's main directory/home/jephe to give the nobody group the read and execute permissions
Chmod 750-R/home/jephe
B. Set the public_html directory permission in the user's home directory/home/jephe.
Chmod-R 2770/home/jephe/public_html
　　
C. Set the owner of the user's home directory
Chown-R jephe. nobody/home/jephe/public_html users can upload the home page file to their own directory through FTP. Set/etc/inetd. the default value of umask uploaded by FTP in conf is u002,
Ftp stream tcp nowait root/usr/sbin/tcpd in. ftpd-l-a-u002
Then use killall-HUP inetd to take effect.
Last with http://web.company.com /~ Jephe/visit the personal homepage.
　　
　　 Iv. Apache reverse proxy on firewall machine B
The settings are as follows:
　　
NameVirtualHost a. B. c. d
　　
<VirtualHost a. B. c. d>
Servername web.company.com
Errorlog "|/usr/local/apache/bin/cronolog/var/log/httpd/web/% Y/% m/% d/error_log"
Transferlog "|/usr/local/apache/bin/cronolog/var/log/httpd/web/% Y/% m/% d/access_log"
Rewriteengine on
Rewriterule ^ (/. *) $ http: // 192.168.11.8/$1 [P, L]
Proxyrequests off
</VirtualHost>
　　
V. Backup
Back up the main directory/www/web.company.com/public/htdocswith Rsync