This is my first in, I hope, a series of posts about the ‘state of things on the internet’ along with my findings and anything interesting I may have come across along the way.
This post will be about the state of Telnet (Port 23) on the internet from the perspective of a single internet-scanning host (read more in the methodologies section below). I’ll be going through some statistics including: top countries, top brands and/or firmware and lastly, an analysis on banner responses.
Continue reading The State of Telnet on the Internet – My Findings
In this post I will walk you through setting up a PaperCut real-tine activity display for your office. Not only does it look good but it can also be very useful for staff on the service desk who may be dealing with printer issues/queries.
Continue reading PaperCut Real-Time Activity Dashboard
This is a quick post to help sysadmins facing save issues with Microsoft Office 2016 – specifically the action of saving to the Documents folder and being redirected to Network Shortcuts instead. This issue may be present in Office 2013 too but it’s not what I have deployed in my environment so cannot say for sure if the same symptoms occur on 2013.
Continue reading Office 2016 Network Shortcuts Save Issue
Here are the IP ranges used by Duo Security for authentication purposes – list correct as of September 2016. Duo don’t make this list public (security through obscurity?) but they do give it to customers on request so here they are:
Continue reading Duo Security IP Address Range
MineMeld is an “extensible Threat Intelligence processing framework and the ‘multi-tool’ of threat indicator feeds. Based on an extremely flexible engine, MineMeld can be used to collect, aggregate and filter indicators from a variety of sources and make them available for consumption to peers or to the Palo Alto Networks security platforms.”
It was recently open-sourced by Palo Alto and can be found on Github.
Continue reading Palo Alto MineMeld Example Configuration
In this post I will briefly go through the steps needed to configure your SNMP monitoring tool to get active user statistics from your Ruckus ZoneDirector. You can then use this data to map against another metric like bandwidth utilisation or anything else you might find useful in your environment.
In my set-up I have a Ruckus ZoneDirector 3000. I used PRTG as the SNMP monitoring software but any will do.
Continue reading Ruckus SNMP Active Users and Bandwidth Utilisation
In this blog I will go through the steps necessary to set-up an automatic reverse SSH tunnel between a client machine sitting in a restricted environment and a server that you control in your home/office/cloud. The reverse SSH tunnel will be encapsulated within a SSL tunnel over port 443 to evade network security appliances/firewalls.
Continue reading Reverse SSH Tunnelling over SSL with the Raspberry Pi