3 posts tagged with "Ubuntu"


This post summarizes a simple method to secure, or lock-down, SSH access using the Restricted SSH () package. The basic premise, you can create a user with a restricted shell and allow only specific protocols such as SCP or SFTP. There are many reasons to restrict SSH access or restrict SSH access to specific accounts. I used on an assessment server in one of the papers I teach. I wanted students to be able to submit an assessment using a simple bash script, that SCP transferred a single file…

This tutorial covers how to install and configure the Damn Vulnerable Web Application, or DVWA. Contents Introduction Initial Steps Configuring DVWA Re-configure MySQL root account Creating the DVWA Database Conclusion Introduction The authors summarize DVWA as: Damn Vulnerable Web Application (DVWA) is a PHP/MySQL web application that is damn vulnerable. Its main goal is to be an aid for security professionals to test their skills and tools in a legal environment, help web developers better…

This post documents how to build a Linux gateway using Ubuntu Server 18.04. The gateway connects an internal network to an external network - basically, performing Network Address Translation (NAT) for hosts on the internal network. It is exceptionally similar to what your ISP supplied home router does. To achieve this, an Ubuntu Linux server is configured as a DHCP server and also to provide NAT using . Contents Introduction Configure Network Interface Cards Install DHCP server Configure…