Apache page optimization

I Apache Web page optimization

In enterprises, only using the default configuration parameters after deploying Apache will cause many problems in the website. In other words, the default configuration is for the previous lower server configuration, which is no longer applicable to today's Internet era
In order to meet the needs of enterprises, we need to consider how to improve the performance and stability of Apache, which is the content of Apache optimization

Web page compression
Web cache

1.1 web page compression

① Check if mod is installed_ Deflate module

apachectl -t -D DUMP_MODULES | grep "deflate"

② If mod is not installed_ Deflate module, recompile and install Apache, add mod_deflate module

systemctl stop httpd.service
cd /usr/local/httpd/conf
mv httpd.conf httpd.conf.bak

yum -y install gcc gcc-c++ pcre pcre-devel zlib-devel

cd /opt/httpd-2.4.29/
./configure \
--prefix=/usr/local/httpd \
--enable-so \
--enable-rewrite \
--enable-charset-lite \
--enable-cgi \
--enable-deflate
#Add mod_deflate module

make && make install

③ Configure mod_deflate module enabled

vim /usr/local/httpd/conf/httpd.conf
--52 that 's ok--modify
Listen 192.168.80.10:80
--105 that 's ok--note off
LoadModule deflate_module modules/mod_deflate.so
#Enable mod_deflate module
--197 that 's ok--note off,modify
ServerName www.kgc.com:80
--Last line add--
<IfModule mod_deflate.c>
AddoutputFilterByType DEFLATE text/html text/plain text/css text/xml text/javascript text/jpg text/png
#Represents what kind of content to enable gzip compression
DeflateCompressionLevel 9
#Represents the compression level, ranging from 1 to 9
SetOutputFilter DEFLATE
#On behalf of enabling deflate module to gzip compress the output of this site
</IfModule>

④ Check the installation and start the service apachectl -t

#Verify that the configuration file is configured correctly
apachectl -t -D DUMP_MODULES | grep "deflate"
#Check Mod_ Is deflate module installed
deflate_module (shared)
#Correct results installed
systemctl start httpd.service

⑤ Test mod_deflate compression works cd /usr/local/httpd/ htdocs

First game .jpg File transfer/usr/local/httpd/htdocs Under the directory vim index.html

<html><body><h1>It works!It works!It works!It works!It works!It works!Itworks!It works!It works!It works!It works!It works!It works!It works!Itworks!It works!It works!It works!It works!It works!It works!It works!Itworks!It works!It works!It works!It works!It works!It works!It works!Itworks!it works!It works!It works!It works!It works!It works!It works!Itworks!</h1>
<img src="game.jpg" /></body></html>

1.2 Web Caching

(1) configure the web page compression function of Apache, which uses gzip compression algorithm to compress the web page content and then transmit it to the client browser
(2) function

It reduces the number of bytes transmitted on the network and speeds up the loading speed of web pages
Save traffic and improve users' browsing experience
gzip has a better relationship with the crawling tools of search engines

II Web page compression

1. Check whether mod is installed_ Deflate module

apachectl -t -D DUMP_MODULRS | grep "deflate"

2. If mod is not installed_ Deflate module, recompile and install Apache, add mod_deflate module

systemctl stop httpd.service
cd /usr/ local/httpd/ conf
mv httpd.conf httpd.conf. bak

yum -y install gcc gcc-c++ pcre pcre-devel zlib-devel
cd /opt/httpd-2.4.29/
./configure \
--prefix=/usr/local/httpd \
--enable-so \
--enable-rewrite \
--enable-charset-lite \
--enable-cgi \
--enable-deflate                  #Add mod_deflate module

make && make install

Switch to cd /opt/httpd-2.4.29/ add mod_deflate module, and then make & & make install to compile

3. Configure mod_deflate module enabled

vim /usr/local/httpd/conf/httpd.conf
--52 that 's ok--modify
Listen 192.168.80.10:80
--105 that 's ok--note off
LoadModule deflate_module modules/mod_deflate.so
#Enable mod_deflate module
--197 that 's ok--Uncomment, modify
ServerName www. kgc.com:80
--Last line add--
<IfModule mod deflate.c>
AddOutputFilterByType DEFLATE text/html text/plain text/css text/xml text/javascript text/jpg text/pag
#Represents what kind of content to enable gzip compression
DeflateCompressionLevel 9
#Represents the compression level, ranging from 1 to 9
setoutputFilter DEFLATE
#On behalf of enabling deflate module to gzip compress the output of this site
</IfModule>

4. Check the installation and start the service

apachectl -t
#Verify that the configuration file is configured correctly
apachectl -t -D DUMP_MODULES | grep "deflate"
#Check Mod_ Is deflate module installed
deflate_module (shared)
#Installed correct results

systemctl start httpd.service

5. Test whether mod deflate compression is effective

cd /usr/local/httpd/htdocs
 First game.jpg File transfer/usr/local/httpd/htdocs Under the directory
vim index.html
<html><body><h1>It works! It
works! It works! It works ! It
works!It works! It works! It
works! It works! It works! It
works! It works ! It works ! It 1
works!</h1>
<img src="game.jpg"/>
</body></html>

Method 1:
stay Linux In the system, open Firefox browser and right-click to view elements
 Select network--->choice HTML,WS,other
 visit http://192.168.80.10, double-click the 200 response message to see that the response header contains content encoding: gzip

Method 2:
stay Windows Installed in sequence in the system Microsoft.NET4 and fiddler Software, open fiddler Software
 choice inspectors ---> choice Headers 
Browser access http://192.168.80.10, double-click the 200 response message to view the content encoding: gzip

III Web cache

3.1 check whether mod is installed_ Expires module

apachectl -t -D DUMP_MODULES | grep "expires"

3.2 if mod is not installed_ Expires module, recompile and install Apache, add mod_expires module

systemctl stop httpd.service
cd /usr/local/httpd/conf
mv httpd.conf httpd.conf.bak1

yum -y install gcc gcc-c++ pcre pcre-devel zlib-devel
cd /opt/httpd-2.4.29/
./configure \
--prefix=/usr/local/httpd \
--enable-so \
--enable-rewrite \
--enable-charset-lite \
--enable-cgi \
--enable-deflate \
--enable-expires
#Add mod_ expires module
make && make install

3.3 configuring mod_expires module enabled

vim /usr/local/httpd/conf/httpd.conf

--52 that 's ok--modify
Listen 192. 198.80.10:80
--111 that 's ok--note off
LoadModule expires_ module modules/mod_expires.so
#Enable mod_expires module
--199 that 's ok--Uncomment, modify
ServerName www.kgc.com:80
--Last line add--
<IfModule mod_expires.c>
ExpiresActive On
#T urn on the web page caching function
ExpiresDefault "access plus 60 seconds"
#Set cache for 60 seconds
</ IfModule>

3.4 check the installation and start the service

apachectl -t
#Verify that the configuration file is configured correctly
apachectl -t -D DUMP_MODULES | grep "expires"
#Check Mod_ Is deflate module installed
deflate_module (shared)
#Installed correct results
systemctl start httpd.service

3.5 test whether the cache is effective

cat /usr/local/httpd/htdocs/index.html
 Method 1-:
stay Linux In the system, open Firefox browser and right-click to view elements
 Select network--->choice HTML,WS,other
 visit http://192.168.80.10, double-click the 200 message to see that the response header contains the Expires item

Method 2:
stay Windows Installed in sequence in the system Microsoft. NET4 and fiddler Software, open fiddler Software
 choice inspectors --->choice Headers
 Browser access http://192.168.80.10, double-click the 200 message to view the Expires item

IV Hide version information

vim /usr/local/httpd/conf/httpd.conf
--491 that 's ok--note off
Include conf/extra/httpd-default.conf

vim /usr/local/httpd/conf/extra/httpd-default.conf
--55 that 's ok--modify
ServerTokens Prod
#Change the original Full to Prod, only display the name, no version
#ServerTokens indicates whether the response header field returned by the Server to the client contains information about the Server OS type and the compiled module description.
systemctl restart httpd.service

Browser access http://192.168.80.10, double-click the 200 message to view the Server item

V Apache anti-theft chain

5.1 check whether mod is installed_ Rewrite Module

apachectl -t -D DUMP_MODULES | grep " rewrite"

5.2 if mod is not installed_ Rewrite module, recompile and install Apache, add mod_rewrite Module

systemctl stop httpd.service
cd /usr/local/httpd/conf
mv httpd.conf httpd.conf.bak2 

yum -y install gcc gcc-c++ pcre pcre-devel zlib-devel
cd /opt/httpd-2.4.29/
./configure \
--prefix=/usr/local/httpd \
--enable-so \
--enable-rewrite \   #Add mod rewrite Module
--enable-charset-lite \
--enable-cgi \
--enable-deflate \
--enable-expires

make && make install

5.3 configuring mod_rewrite Module enabled

vim /usr/local/httpd/conf/httpd.conf
--157 that 's ok--note off
LoadModule rewrite_module modules/mod_rewrite.so
--224 that 's ok--
<Directory "/usr/local/httpd/htdocs">
Options Indexes FollowSymLinks
AllowOverride None
Require all granted

RewriteEngine On
#Open the rewrite function and add mode_ rewrite module content
RewriteCond %{HTTP_REFERER} !^http://kgc.com/. *$ [NC]
#Set matching rules
RewriteCond %{HTTP_REFERER} !^http://kgc. com$ [NC]
RewriteCond %{HTTP_REFERER} !^http://www.kgc.com/.*$ [NC]
RewriteCond %{HTTP_REFERER} ! ^http://www.kgc.com/$ [NC]
RewriteRule .*\.(gif | jpg | swf)$ http://www.kgc.com/error.png
#Set Jump Action
</Directory>

5.4 web page preparation

web Source host configuration:
cd /usr/local/httpd/htdocs
 take game.jpg,error.png File transfer/usr/local/httpd/htdocs Under the directory vim index.html

<html><body>
<h1>this is kgc.com!</h1>
<img src="game.jpg"/>
</body></html>

echo "192.168.253.11 www.kgc.com" >> /etc/hosts
echo "192.168.253.22 www.benet.com" >> /etc/hosts

Chain stealing website host:
cd /usr/local/httpd/htdocs
#The default path of httpd service installed by yum is / var/www/html/

vim index.html
<html><body>
<h1>this is benet.com!</h1>
<img src="http://www.kgc.com/game.jpg"/>
</body></html>

echo "192.168.253.11 www.kgc.com" >> /etc/hosts
echo "192.168.253.22 www.benet.com" >> /etc/hosts

Added by smeagal on Mon, 31 Jan 2022 08:01:52 +0200

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