Zookeeper is an open-source coordination service for distributed applications and can build upon to implement higher level services configuration maintenance, group, naming and synchronization. For more information refer the Zookeeper page.

In Apache web server, Modproxy module for redirecting connections and not a single module its a collection of them. This post describe about modproxy and modproxyhttp only.

This post describe about how to install Apache2 web server in Ubuntu Latest version, Apache is an open-source multi-platform web server. We have already discussed Apache installation on previous post.

If you may get an error in Apache2 AH01630 client denied by server configuration, you need to check in your Apache error log file.

This post describes about how to list out Apache modules and security modules on Linux operating system.

If you may get an error conn rec has no member named remote ip while installing security module on Apache web server,

Apache server provide security action is mod_evasive security tool. the mod_evasive evasive maneuvers module for Apache server to provide evasive action in the event of an HTTP DoS or DDoS attack or brute force attack.