Monday, November 24, 2014

Upgrade Apache in Linux server

Upgrade Apache in Linux server

After the installation you have to enable SSL in httpd.conf. and generate server.crt and server.key file. Below the complete procedure :

1. Download Apache

cd /usr/src
wget http://www.apache.org/dist/httpd/httpd-2.4.7.tar.gz
tar xvf httpd-2.4.7.tar.gz

2. Download APR and APR-Util
cd /usr/src
wget https://centos.googlecode.com/files/apr-1.4.6.tar.gz
wget http://mirror.cogentco.com/pub/apache/apr/apr-util-1.5.3.tar.gz
tar xvf apr-1.4.6.tar.gz
tar xvf apr-util-1.5.3.tar.gz
Now put the APR and APR-Util you downloaded into your apache source files.
mv apr-1.4.6 /usr/src/httpd-2.4.7/srclib/apr
mv apr-util-1.5.3 /usr/src/httpd-2.4.7/srclib/apr-util

3.Compile
cd /usr/src/httpd-2.4.7
./configure --enable-so --enable-ssl --with-mpm=prefork --with-included-apr
make
make install
4. Enable SSL in httpd.conf
Apache configuration file httpd.conf is located under /usr/local/apache2/conf.
nano /usr/local/apache2/conf/httpd.conf
Uncomment the httpd-ssl.conf Include line and the LoadModule ssl_module line in the /usr/local/apache2/conf/httpd.conf file :
# LoadModule ssl_module modules/mod_ssl.so
# Include conf/extra/httpd-ssl.conf
View the httpd-ssl.conf to review all the default SSL configurations. For most cases, you don’t need to modify anything in this file.
nano /usr/local/apache2/conf/extra/httpd-ssl.conf
The SSL certificate and key are required before we start the Apache. The server.crt and server.key file mentioned in the httpd-ssl.conf needs to be created before we move forward.
cd /usr/local/apache2/conf/extra
egrep 'server.crt|server.key' httpd-ssl.conf

SSLCertificateFile "/usr/local/apache2/conf/server.crt"
SSLCertificateKeyFile "/usr/local/apache2/conf/server.key"
5. Generate server.crt and server.key file
First, Generate the server.key using openssl.
cd /usr/src
openssl genrsa -des3 -out server.key 1024
The above command will ask for the password. Make sure to remember this password. You need this while starting your Apache later.
Next, generate a certificate request file (server.csr) using the above server.key file.
openssl req -new -key server.key -out server.csr
Finally, generate a self signed ssl certificate (server.crt) using the above server.key and server.csr file.
openssl x509 -req -days 365 -in server.csr -signkey server.key -out server.crt
Copy the server.key and server.crt file to appropriate Apache configuration directory location.
cp server.key /usr/local/apache2/conf/
cp server.crt /usr/local/apache2/conf/
6. Start Apache
/usr/local/apache2/bin/apachectl start
If you are getting the below error message :
AH00526: Syntax error on line 51 of /usr/local/apache2/conf/extra/httpd-ssl.conf:
Invalid command 'SSLCipherSuite', perhaps misspelled or defined by a module not included in the server configuration
Make sure to uncomment the line shown below in httpd.conf :
vi /usr/local/apache2/conf/httpd.conf

# LoadModule socache_shmcb_module modules/mod_socache_shmcb.so
Finally, this will prompt you to enter the password for your private key before starting up the apache. Verify that the Apache httpd process is running in the background.
ps -ef | grep http
You should see something like that :
root 29529 1 0 13:08 ? 00:00:00 /usr/local/apache2/bin/httpd -k start
charly 29530 29529 0 13:08 ? 00:00:00 /usr/local/apache2/bin/httpd -k start
charly 29531 29529 0 13:08 ? 00:00:00 /usr/local/apache2/bin/httpd -k start
charly 29532 29529 0 13:08 ? 00:00:00 /usr/local/apache2/bin/httpd -k start
root 29616 18260 0 13:09 pts/0 00:00:00 grep http
By default Apache SSL runs on 443 port. Open a web browser and verify that you can access your Apache using https://{your-ip-address}


1 comment:

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