https://wiki.lknog.lk/ 2026-04-25T17:30:16+00:00 https://wiki.lknog.lk/ https://wiki.lknog.lk/lib/exe/fetch.php?media=wiki:logo.png text/html 2023-01-31T14:21:12+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.lknog.lk/doku.php?id=lknog3:netops:lamp&rev=1675174872&do=diff LAMP Installation and hardening LAMP is one of the most common web systems we find today. Letters L A M P stands for Linux , Apache, MySQL & PHP. We now already have our first objective ‘L’, i.e. Linux or in our case its Ubuntu. Therefore, let’s see how to install the other three and then into some security hardening. text/html 2023-01-31T14:21:12+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.lknog.lk/doku.php?id=lknog3:netops:setup&rev=1675174872&do=diff Basic Lab Setup For this lab sessions, we are using your host machine as the ssh client and your Ubuntu VM as the ssh server. Please download following applications * [PuTTY] (the Telnet and SSH client itself) * [PuTTYgen] (an RSA and DSA key generation utility text/html 2023-01-31T14:21:12+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.lknog.lk/doku.php?id=lknog3:netops:ssh&rev=1675174872&do=diff Secure SHell (SSH) Password Based Authentication * Go to your host machine. * Start PuTTY utility, by double-clicking on its .exe file. * In the Host Name field, enter the IP address/Hostname of the ssh server * Click open. * When you are log in to a server for the first time putty will ask you to confirm crypto signature of the server. For the added security the signature by clicking text/html 2023-01-31T14:21:12+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.lknog.lk/doku.php?id=lknog3:netops:ufw&rev=1675174872&do=diff Firewall exercises using ufw In this exercise we will see examples of how to set up simple host protection using ufw to configure the iptables firewall. All the commands in this exercise need to be done as root. If you are not already root, start a root shell like this: