Linux – robflemen.com

Pivoting with Metasploit

By rob flemen December 13, 2024Hacking, Linux, Metasploit, Networking, Security, Tutorial, Virtual MachinesNo Comments

We again explore pivoting, which is using a compromised machine to get to a previously inaccessible network. This time we use the Metasploit Framework and additionally discuss and demonstrate port forwarding in Metasploit. https://youtu.be/THa41WJg8C0?si=hz1RHIOx7mUJwW5y

Pivoting with Ligolo!

By rob flemen December 11, 2024Hacking, Linux, Networking, Security, Tutorial, Virtual MachinesNo Comments

Ligolo-ng is a simple, lightweight and fast tool that allows pentesters to establish tunnels from a reverse TCP/TLS connection using a tun interface (without the need of SOCKS). Link to Github repository!

Persistently Change Hostname on Ubuntu Server

By rob flemen October 27, 2023Canonical, Hostname, Linux, Raspberry Pi, Tutorial, Ubuntu ServerNo Comments

OK, this one drove me nuts because there is some conflicting information out there on the Interwebz. I installed Ubuntu Server on a Raspberry Pi 4 w/ 8GB of RAM, and when I used Raspberry Pi imager it wouldn't let me use my preferred hostname because of the inability to…

Easy Backups for Concerto Digital Signage

By rob flemen October 23, 2023Backups, Concerto Digital Signage, Linux, Logs, Systemd, Tutorial, Virtual Machines, VirtualizationNo Comments

If you have read any of my earlier posts you know that I am running the pre built VM of Concerto. You should still backup your instance, otherwise, you may find yourself having to rebuild the whole setup, including all your screens and content, should something go horribly wrong. I…

How to Have a Docker Container Use the Host Network

By rob flemen October 20, 2023Containers, Docker, Linux, Networking, Tutorial, VirtualizationNo Comments

One of the things I really haven't mastered is Docker networking. It just isn't intuitive to me. What I have been able to do though, is have a container use the host address and be accessible to other hosts on the network. For example, if you have Docker installed on…

Absolutely the Easiest and No Fuss Way to Install Docker on Linux

By rob flemen October 17, 2023Containers, Docker, Linux, Tutorial, VirtualizationNo Comments

I am by no means an expert with Docker, in fact, I have barely even scratched the surface in knowing how to effectively use Docker to its full capacity. I have found it extremely useful though to use as a platform for quickly standing up applications for which a Docker…

Maintaining Concerto Digital Signage Step 2 – Cache Management

By rob flemen October 16, 2023Concerto Digital Signage, Linux, Tutorial, Virtual MachinesNo Comments

In the last post we discussed log rotation to prevent Concerto from filling up the hard drive of the VM which would keep the application from starting. There is an additional step you should take to ensure you don't encounter problems with space down the road, and that is clearing…

Maintaining Concerto Digital Signage Step 1 – Log Management

By rob flemen October 15, 2023Concerto Digital Signage, Debian, Linux, Logs, Tutorial, Virtual MachinesNo Comments

After I got Concerto running at work, everyone was super happy with it, it was working great and was very reliable. I barely touched it for the first 60 days that it ran. The HR folks made their updates and all was good with the world, until it wasn't. I…

Starting Concerto Digital Signage as a Systemd Service

By rob flemen October 15, 2023Concerto Digital Signage, Linux, Systemd, Tutorial, Ubuntu, Virtual MachinesNo Comments

Concerto Digital Signage is a great open source program that can easily fit the needs of most small companies for digital signage. It isn't being actively developed any longer on their GitHub page unfortunately, but it's a refined product that works great if setup properly. I recommend using the pre…