Difference between revisions of "Installing SSL certificate in Apache"

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<yambe:breadcrumb>Security_tips|Security tips</yambe:breadcrumb>
[[Main Page|Home]] > [[CentOS]] > [[CentOS 6.x]] > [[Apache web server configuration]] > [[Installing SSL certificate in Apache]]
<yambe:breadcrumb>Apache web server configuration</yambe:breadcrumb>
=Using startssl SSL certificates for HTTPS=


It is good to have HTTPS certificate signed by recognized CA instead of using self-signed certificate. One very viable option for simple HTTPS certificate is http://www.startssl.com  Using this website one can generate SSL certificates recognized by all popular browsers for free.  Steps for obtaining such certificate are:
[[Main Page|Home]] > [[Security tips]] > [[Installing SSL certificate in Apache]]


# Register on website and provide authetication code from email
# Wait for another acceptance email with code and paste same in browser
# Generate client certificate to recognize oneself.  Take backup of this certificate with password at some safe location.
# Go to control panel -> Validation wizard -> Domain name validation
# Verify by email ID of domain owner.  An email with verification code will be sent to chosen email ID.
# Go to Certificate wizard -> SSL/TLS web certificate
# Enter domain name of validated domain/sub-domain for which certificate is requested
# Generate certificate using displayed openssl command, such as:
#:<pre>
#::openssl req -newkey rsa:2048 -keyout mail.rekallsoftware.com.key -out mail.rekallsoftware.com.csr
#:</pre>
#::The password can be simple.  We would need it only once.
#Remove the password from private key using:
#:<pre>
#:: openssl rsa -in mail.rekallsoftware.com.key -out mail.rekallsoftware.com-2.key
#:</pre>
# Download the certificate and copy it to server along with key.
# Download CA (pem) format with CRL included  ( https://www.startssl.com/certs/ca-bundle.pem )
#:Other option is to download all CA root and intermediate certificate.  Append all these certificates into one single ca-bundle.crt or ca-bundle.pem file.
==Install SSL certificate in apache==
For installation of certificate in apache use following steps:
For installation of certificate in apache use following steps:
# Copy all (certificate, key, CA bundle) to /etc/httpd/conf folder
# Copy all (certificate, key, CA bundle) to /etc/httpd/conf folder
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==Securing Apache SSL configuration==
=Securing Apache SSL configuration=


Default SSL configuration of apache is vulnerable to many attacks.  We can improve apache SSL configuration as follows:
Default SSL configuration of apache is vulnerable to many attacks.  We can improve apache SSL configuration as follows:
#Edit /etc/httpd/conf/ssl.conf and replace/insert following two values
#Edit /etc/httpd/conf/ssl.conf and replace/insert following two values
#:<pre>
#:<pre>
#::SSLProtocol all -SSLv2 -SSLv3
#:: SSLEngine on
#::SSLHonorCipherOrder on
#:: SSLProtocol all -SSLv2 -SSLv3 -TLSv1 -TLSv1.1
#::SSLCipherSuite "EECDH+ECDSA+AESGCM EECDH+aRSA+AESGCM EECDH+ECDSA+SHA384 EECDH+ECDSA+SHA256 EECDH+aRSA+SHA384 EECDH+aRSA+SHA256 EECDH+aRSA+RC4 EECDH EDH+aRSA !RC4 !aNULL !eNULL !LOW !3DES !MD5 !EXP !PSK !SRP !DSS"
#:: SSLHonorCipherOrder on
#:: SSLCipherSuite "EECDH+ECDSA+AESGCM:EECDH+aRSA+AESGCM:EECDH+ECDSA+SHA384:EECDH+ECDSA+SHA256:EECDH+aRSA+SHA384:EECDH+aRSA+SHA256:EECDH+aRSA!RC4:EECDH:!RC4:!aNULL:!eNULL:!LOW:!3DES:!MD5:!EXP:!PSK:!SRP:!DSS"
#:: Header always set Strict-Transport-Security "max-age=31536000"
#:</pre>
#:</pre>
#::In case of Virtualhost '<tt>SSLEngine On</tt>' line is also required.
#::In case of Virtualhost '<tt>SSLEngine On</tt>' line is also required.
#Check ranking of HTTPS security using https://www.ssllabs.com/ssltest/index.html
#Check ranking of HTTPS security using https://www.ssllabs.com/ssltest/index.html


Steps learned from https://www.sslshopper.com/article-how-to-disable-weak-ciphers-and-ssl-2.0-in-apache.html
Refer:
* https://www.mysterydata.com/how-to-get-a-score-rating-in-ssllabs-qualys/
 
 




[[Main Page|Home]] > [[CentOS]] > [[CentOS 6.x]] > [[Apache web server configuration]] > [[Installing SSL certificate in Apache]]


<yambe:breadcrumb>Security_tips|Security tips</yambe:breadcrumb>
[[Main Page|Home]] > [[Security tips]] > [[Installing SSL certificate in Apache]]
<yambe:breadcrumb>Apache web server configuration</yambe:breadcrumb>

Latest revision as of 04:19, 18 April 2022

Home > CentOS > CentOS 6.x > Apache web server configuration > Installing SSL certificate in Apache

Home > Security tips > Installing SSL certificate in Apache

For installation of certificate in apache use following steps:

  1. Copy all (certificate, key, CA bundle) to /etc/httpd/conf folder
  2. chmod 400 ssl.key
  3. Edit /etc/httpd/conf.d/ssl.conf and replace appropriate values. Following three values need to be updated: 
    SSLCertificateFile /etc/httpd/conf/ssl.pem
    

    SSLCertificateKeyFile /etc/httpd/conf/ssl.key
    

    SSLCACertificateFile /etc/httpd/conf/ca-bundle.pem
  4. Restart apache and verify that certificate is working as expected.


Securing Apache SSL configuration

Default SSL configuration of apache is vulnerable to many attacks. We can improve apache SSL configuration as follows:

  1. Edit /etc/httpd/conf/ssl.conf and replace/insert following two values 
    SSLEngine on
    

    SSLProtocol all -SSLv2 -SSLv3 -TLSv1 -TLSv1.1
    

    SSLHonorCipherOrder on
    

    SSLCipherSuite "EECDH+ECDSA+AESGCM:EECDH+aRSA+AESGCM:EECDH+ECDSA+SHA384:EECDH+ECDSA+SHA256:EECDH+aRSA+SHA384:EECDH+aRSA+SHA256:EECDH+aRSA!RC4:EECDH:!RC4:!aNULL:!eNULL:!LOW:!3DES:!MD5:!EXP:!PSK:!SRP:!DSS"
    

    Header always set Strict-Transport-Security "max-age=31536000"
    In case of Virtualhost 'SSLEngine On' line is also required.
  2. Check ranking of HTTPS security using https://www.ssllabs.com/ssltest/index.html

Refer:



Home > CentOS > CentOS 6.x > Apache web server configuration > Installing SSL certificate in Apache

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