How to Install and Configure NTP Server on Ubuntu 14.04

The Network Time Protocol (NTP) is used to synchronize between computer systems over the network. Time synchronization is very crucial to determine when events happened to computers system or server systems. NTP will be very useful when we want to implement replication between servers. NTP uses 123/UDP protocol. Please make sure UDP port from each […]

How to Setup Squid Proxy in Ubuntu Server 14.04

Squid is a proxy server that provide cache services to the clients. It redirects client requests from web browsers to the proxy server and delivers the client’s requests and keeps a copy of them in the proxy hard disk cache. This will speeding up internet access especially for frequently-used files and reduces internet bandwidth. Squid […]

How to Disable and Remove AppArmor on Ubuntu 14.04

remove AppArmor on Ubuntu

AppArmor is a Mandatory Access Control (MAC) and security extension that provides a variety of security policies for Linux kernel. It is an alternative application to SELinux and included with Ubuntu. Most of the time you don’t need it to configure a secure system, and it usually causes more problems because some service wasn’t working […]