Jordan Erickson

Systemd + Bind9 upgrade = ugh

I’ve spent a few times battling bind9 upgrades on Debian over the years. I run a chrooted bind9 so it complicates things a bit in troubleshooting. This time it wasn’t apparmor profiles, or config file /etc/default/bind9. I thought I’d share with you my own fix as I’ve read a lot of yours and they didn’t […]

Bash script to shutdown (and restart) libvirt/qemu/kvm guests

Today I wrote two simple bash scripts. The first one shuts down all of my running libvirt (+ qemu/kvm) guest virtual machines at once. The second script automates restarting all guests marked as ‘autostart’ in qemu. I’m using these in Debian 10 (Buster). The reason I made these scripts was to help in automating the […]

LNS “Top 3” I.T. Checklist for Business

I’ve been thinking for a while about what matters most in small business I.T. – so I made the LNS “Top 3 I.T. Checklist”. It’s comprised of the 3 most important practices of I.T. (IMHO) – Backups, Security and Maintenance. Just a quick rundown that any small business could benefit from by taking a look […]

4 Days in the Life of a Firewall

I thought I’d share a screenshot of a firewall application that helps protect my public web + email server. This server hosts this domain ( and a number of other domains.To me it symbolizes the constant barrage of attacks that public, Internet-facing servers and services face on a daily basis. The above log shows entries […]

Free Windows 10 Upgrade – Worth it?

  My customers have been asking me lately when a good time will be to upgrade to Windows 10. Since it’s a free upgrade for Windows 7 and 8.1 customers until July 2016, there seems to be a sense of slight urgency to prepare offices and at-home users for the upgrade that will inevitably become […]

Replacing SystemD with SysVinit in Debian 8.0

For those who opt for the greybeard^Wmore stable and less resource intensive init system in Debian 8.0, here is a (very) quick howto in downgrading: # apt-get update # apt-get install sysvinit systemd- # apt-get install systemd-shim # apt-get moo

VIDEO: A trillion FPS camera captures light particles as they travel

Ramesh Raskar presents femto-photography, a new type of imaging so fast it visualizes the world one trillion frames per second, so detailed it shows light itself in motion. This technology may someday be used to build cameras that can look “around” corners or see inside the body without X-rays.

Welcome to the Inter(pla)net?

Widely known as one of the “Fathers of the Internet,” Vinton G. Cerf is the co-designer of the TCP/IP protocols and the architecture of the Internet. Cerf has served as vice president and chief Internet evangelist for Google since October 2005. In this TedTalk, Mr. Cerf talks about the growing interplanetary data communication network in […]

Resistive RAM Technology to Replace Flash?

IMAGINE storing your entire music collection, documents, pictures, even your HD movies on a flash memory chip the size of a postage stamp… Only it’s not flash technology, it’s a new competitor called “Resistive RAM”. This new venture by company Crossbar is touting that resistive RAM not only can hold much, much more stuff than […]

Sony’s new A4-sized digital paper notebook

At the Educational IT Solutions Expo, Sony shows off an A4 sized digital paper notepad. The video demonstrates how this new idea blurs the lines even further between traditional paper and pen and its new digital rival. They are planning on having a production ready version this year, and are hoping to capture the hearts […]

© 2013 Logical Networking Solutions: I.T. and Networking Specialist, Lake County, CA