Various Notes on Using and Managing a Linux System from the Command Line
We review some options and examples for use of tcpdump in network testing and probing.
Article discusses using Python with sockets to create and deploy a honey pot for the purpose of detecting malicious activity on a network. A sample Python 3 script is provided.
A basic Python URL rewriter is developed and tested searching for both key words and expressions. The test configuration is also reviewed
A brief review of cloning, building, and debugging the master branch of the OpenSSL project along with stepping into the crypto library with GDB.
A Step-by-Step cookbook to install Apache and Django using WSGI on Ubuntu Linux
We review basic steps to clone, build, and configure PostgreSQL Release 11 on Ubuntu Linux 18.04. PostgreSQL is one of the most advanced and popular relational databases in the world. And best of all, it's open source.
This article reviews building a simple OpenCV 4 video playback application using the OpenCV Git repos on Ubuntu Linux 18.04.
Configure a Linux host to act as a DHCP server and assign predefined IP addressees to the supported hosts on our network. Configuration and debug tips are provided for Ubuntu and Yocto systems.
For some Python packages, we prefer to work with the Git repos in the cloud, but there can be some issues in setting it up.
Bare metal / no-stack implementation of ICMP ECHO ( ping ) based on insight from the implementation of ping on Linux
Review of steps to create a local Git repo and clone it into a bare, centralized Git repo (git clone --bare)
Use Java to determine whether another host is present and responsive on a network. Two approaches are provided: low level and layer 4, connection oriented. The lower level approach will result in a ping if used with the right permissions.
Use asymmetric encryption ( public / private keys ) to automate logins to servers via ssh
Each working command and option presented during Pablo's talk is executed on a live Linux embedded system
A high level overview of a home or small business network utilizing a Linux server to perform functions such as filtering, reporting, intrusion detection, management, and segmentation.
Squid is a proxy and caching server. Also, it works with content filters like SquidGuard to implement black lists that are used to block requests to undesirable web sites.
Brief writeup on mounting an ISO image locally without having to burn it to CD
Iptables enables you to block traffic entering, exiting, or being forwarded across your network. Iptables is extremely powerful, and with its power comes complexity. This article discusses its installation and use on an Ubuntu Linux 12.04 machine.