RHCE Exam

The RHCE (RedHat Certified Engineer) exam is a hands-on, practical exam that lasts 2.0 hours. Candidates are eligible to take the RHCE exam without first having passed the RHCSA exam, but RHCE will not be issued until both credentials are earned by a candidate.

Authentication / Password Protection in Apache

There are many ways you can password protect directories under Apache web server. This is important to keep your file privates from both unauthorized users and search engines (when you do not want to get your data indexed). Here you will see the basics of password protecting a directory on your server. You can use any one of the following method:

Securing Apache Web Server with Encryption

In this blog we are going to discuss about encrypting communications to web server  using TLS/SSL.

Step 1:  Install mod_ssl and httpd

# yum -y install mod_ssl httpd

Basic web server configuration in RHEL / CENTOS

Packages required – httpd

                               httpd-devel

                               httpd-manual

Daemon - /usr/sbin/httpd

Script -     /etc/init.d/httpd

Ports -       80/tcp (http) , 443/tcp (https)

Configuration - /etc/httpd/*

                          /var/www/*

DNS / BIND Server Configuration in RHEL 6 / CENTOS 6

What is DNS?
DNS is called as Domain name system. DNS is name resolution service which resolves human friendly name (such as Example Web Page) into IP  address (192.168.0.10) DNS is a hirarchical distributed database that contains
resolving of domain name into IP address.

Why DNS?
Because people and applications try to connect the network computer by  specifying name. DNS has superior scalability,security and compatibility with internet.