September 26, 2021

Cyberattack

At work last week, I saw my first real cyber attack. It involved a comprimised user account and our VPN, and I saw how woefully unprepared our org was for such an event. The IT team did not really know how to respond, and we had so little in place in terms of safeguards or even watchguards. I’m glad that I have embraced security as my profession, and am able to help people in this world of cyber crime. It has helped me make my choice on career and certs in the remainder of the year.

September 21, 2021

More gameutils

I started moving a script I was writing from go to python, but I am now seeing the different tiers of closeness to the machine between go, python, and sh. In sh, I am used to using variables where-ever, including stringing them together to call things by “string” + $var. That does not work in go or python. But, with python I do not need to worry about reflection in lists/arrays, as I can call the contents of the arrays by index number.

September 7, 2021

Go Scripting

I tried a scripting project in Go, as I had heard that the language could replace Python in the scripting world. I get that it can be compiled at runtime, but I really struggled writing scripts as I knew them in Go. Aparently, I had taken reflection and dynamic variable assignments for granted while writing in shell or Python, so going to dynamically populating lists or arrays just turned into a mind bending experience. I probably am close to getting it, but can’t see me following through with the project I had in mind with Go.

September 7, 2021

Next Certs

With a new move fresh under my belt and a sense of relief in my new locale and life, I t may be time to approach a new certification. I have some ideas of paths to follow, but as I climb the cert ladder, they all start to get pricey, which is daunting while self funding. Still cheaper than the college I self-funded, however.

I’m looking at going up to CCNP as my next network cert; I don’t know if CompTIA does a higher than Network+, and anything I learn there is applicable to most other vendors. Going with another bottom tier cert seems silly, and I like learning about complex networks that I have not been able to touch myself.

August 30, 2021

Books Git

Brief annoucement, I have added a git repo to https//git.bootingup.net that has a record of my books read and in progress. It only starts from the beginning of August roughly, so despite the many books I have read before, it is a short list so far. I guess now I have an incentive to re-read some things!

August 30, 2021

OpnSense Build

For the past few years I have been using Mikrotik routers, a Hex then a CRS, but I have built and installed Opnsense on an amd64 Pentium board. Using VLANs and a switch behind it, I have started to get more serious about my home network.

Essentially, its time in my mind to get some more practice in with security in WAN settings, but also eperate out my traffic so I am not getting any bleedover that could be dangerous. Currently, nothing is really open, but the firewall is easier on Opnsense than Mikrotik, and I can load the firewall (which is beefy for a firewall) up with some other things like IPS and traffic sniffing.

August 14, 2021

Terrain Building

I recently got back into terrain building for miniatures and miniature wargaming. While I started to played 40k back in middle school, this time around of getting back into the hobby I find myself more drawn to historics. In that vein, I found a copy of Wargames Illustrated with a “How To” guide on building terrain, and I have gotten pretty into it again, although to a better degree I think than my previous terrain.

May 5, 2021

The Next Step: Virt Builder

I have been using Debian/Ubuntu preseed files for a while now, automating installation of machines as defined by a preseeded config file, which works great (don’t get me started on how much I hate 20.04 though). While discussing the merits of images versus automated installation, I looked at and like the libguestfs suite of tools, notably the virt-builder tools for standing up a VM in less time.

It was to my surprise that virt-builder builds its images from pressed and kickstart files, then just anonymises those disks to be used as templates. That was exactly what I wanted; a means of building images that works great and is easy to use, and a way to put those into templates that are virtually on tap.

March 8, 2021

Test Enviornment

When gearing up to make changes on a production network, there’s almost always something that would be great to just try first; it could be because one is unsure on the exact behaviour, or there’s some ambiguity over what the best approach is. Keeping those tests away from a network that matters is important, and while having a separate VLAN is a pretty good approach, one of my favourite domains is to build a virtualisation host, and to use it as a router for a self-contained network segment.

January 25, 2021

PXE Booting

One of my latest projects has been to get PXE booting auto installation working in a more dynamic way. This was sparked when reading the iPXE website, where they mention dynamic booting, using a webserver with PHP to select the install files based off hardware information. I don’t know PHP, but I do know how to tweak a config file, so I set about trying to do this using just the iPXE stack.