First set up the httpd (web) service $ yum install httpd If httpd service is already installed, update the service $ yum update httpd Now, start the web server $ service httpd start Redirecting to /bin/systemctl start httpd.service Check the status of the web server $ service httpd status (more…)

First step is to install dependencies $ sudo yum groupinstall "Development Tools" $ sudo yum install kernel-devel Mount the Virtualbox Additions CD ISO. You should download the virtualbox additions iso from http://download.virtualbox.org/virtualbox/ depending on your version of Virtual Box. $ sudo mkdir /media/cdrom/ $ sudo mount /dev/cdrom /media/cdrom/ $ cd /media/cdrom $ sudo ./VBoxLinuxAdditions.run Before this step, create a shared folder in your host system. Say for example, if you created a shared folder named "CentosShare" in the host system you will follow the steps given below to access the share from within Centos. $ mkdir ~/share $ mount -t vboxs CentosShare ~/share

Edit Apache configuration file for your site setting. It may be httpd.conf or a virtual host file that ends with .conf specific to your site. Add the below line with the host file and give the correct path for the error message page. ErrorDocument 404 /404.html If you do not want to create a custom page to showcase the error message, you can simply add the error message in the configuration file ErrorDocument 404 "404 - Page not found." Error status codes on the client side 400 - Bad Request 401 - Unauthorized 402 - Payment Required 403 - Forbidden 404 - Not Found 405 - Method Not Allowed 406 - Not Acceptable 407 - Proxy Authentication Required 408 - Request Timeout 409 - Conflict 410 - Gone 411 - Length Required 412 - Precondition Failed 413 - Request Entity Too Large 414 - Request-URI Too Long 415 - Unsupported Media Type 416 - Requested Range Not Satisfiable 417 - Expectation Failed Error status codes shown from server 500 - Internal Server Error 501 - Not Implemented 502 - Bad Gateway 503 - Service Unavailable 504 - Gateway Timeout 505 - HTTP Version Not Supported

Informational 100 - Continue 101 - Switching Protocols Successful 200 - OK 201 - Created 202 - Accepted 203 - Non-Authoritative Information 204 - No Content 205 - Reset Content 206 - Partial Content Redirection 300 - Multiple Choices 301 - Moved Permanently 302 - Found 303 - See Other 304 - Not Modified 305 - Use Proxy 307 - Temporary Redirect (more…)

Edit /etc/php.ini and add the timezone setting within the file. For a list of timezone settings, visit http://php.net/manual/en/timezones.php [Date] ; Defines the default timezone used by the date functions ; http://php.net/date.timezone date.timezone = America/New_York

Your answer is to create a robots.txt file in the root of your web directory and to have the code setting given below in the file.

User-agent: * Disallow: /

You can read more about Robots exclusion protocol, here