CCNA Security – Key Things I learned

Having recently passed CCNA Security I thought I'd share some of the interesting topics covered that I'd either not heard of before or had limited knowledge of. I've also posted a small rant about the exam and how I studied here. Many of the topics were existing knowledge for me as my daily work is … Continue reading CCNA Security – Key Things I learned


Sophos UTM and Policy Based Routing

Ok, so I have to admit that the Sophos XG is pretty good when it comes to Policy Based Routing (PBR). The XG worked pretty nicely for me running on my somewhat overstretched HP N54L micro server VMware host however upgrading to anything beyond XG v15 became painful. Even at v15 the UI seemed slow and I … Continue reading Sophos UTM and Policy Based Routing

Oversharing and its Consequences

Recently I spotted a post by satirical website, The Poke, in which a Twitter user shared her families humorous WiFi password in a screenshot. Clearly visible was the SSID. Would you realistically think that based on just the shared SSID someone would be able to find your house with no other information needed? allows … Continue reading Oversharing and its Consequences

Sophos UTM Up2Date Failing

Having had mixed results with the Sophos XG, and having hardware that just can't keep up with the latest updates for it, I've reverted back to the Sophos UTM9. This still plays nicely with my PIA VPN setup whereby a pfSense router is placed in front of a UTM interface to anonomise traffic however I … Continue reading Sophos UTM Up2Date Failing

Release the Kracken!

Got a WiFi baby monitor? Got a fancy WiFi kettle? Bought a smart TV with WiFi? How's that WiFi connection in the car working out for you? Because they are all very likely to be vulnerable to the KRACK (Key Reinstallation Attack) exploit: The exploit allows an attacker within proximity of a wireless client or access point … Continue reading Release the Kracken!

Setting Up PIA VPN In My Overly Complicated Network

After getting my hands on a WiFi Pineapple (a post on this to follow!) and enjoying exploring its features I quickly realised my mobile device is super promiscuous when it comes to joining open access points I'd previously connected too (Premier Inn, McDonalds etc). This got me started on looking into VPN solutions and after … Continue reading Setting Up PIA VPN In My Overly Complicated Network

DHCP Snooping, Dynamic ARP Inspection and IP Source Guard

With a client going for an ISO standard which dictates stringent controls over both the external and the internal network resources I decided to put in some additional controls to ensure confidentiality, integrity and availability of the internal network. As the client uses Cisco hardware on premise, this consisted of a trio of additional measures … Continue reading DHCP Snooping, Dynamic ARP Inspection and IP Source Guard

802.1x MAC Authentication Bypass (MAB) to an NPS Server

Continuing to build on earlier posts where we setup 802.1x to authenticate users and place them in predefined VLANs, then extended this to dynamically assign the VLAN, this post will look at what to do for devices that don't speak 802.1x such as printers etc. While there is a guest VLAN command for dot1x we could use … Continue reading 802.1x MAC Authentication Bypass (MAB) to an NPS Server

Securing Baby Monitors and Webcams

There has been quite a bit in the media lately about consumer grade webcams and Internet of Things (IoT) devices being used as a springboard for DDoS (Distributed Denial of Service) attacks on popular web services. This post is more aimed at the general consumer  as opposed to those who deal with IT in their … Continue reading Securing Baby Monitors and Webcams

Network Device Security Policies

Having recently dipped my toes into the security world with the Security+ exam I've been far more conscious about the risks to confidentiality, integrity and availability in my day to day work designing and supporting network infrastructure. In addition to this I found a very small mention to network device security policies in the back of … Continue reading Network Device Security Policies