Common Building materials and dB loss in LTE
The following is an estimate of loss using LTE frequencies and common building materials. -Fiberglass -2dB -Drywall -4dB-6″ Concrete 12-20 dB-Brick -10-20dB
Bind 9.4 helpful notes
So recently I was spinning up some new authoritative names servers. I have stuck with bind for authoritative for years because the format of the files and queries is THE standard for DNS zones. IMHO, there are some better resolvers out there but I stick with bind for authoritative. Anyway, on to my issue. The … Read more
Server Tip from a non-server guy
This content is for Patreon subscribers of the j2 blog. Please consider becoming a Patreon subscriber for as little as $1 a month. This helps to provide higher quality content, more podcasts, and other goodies on this blog.To view this content, you must be a member of Justin’s Patreon Unlock with PatreonAlready a qualifying Patreon … Read more
Motherload of cambium webinar list
The following link contains a huge list of cambium webinars that have been archived by Cambium. https://community.cambiumnetworks.com/t/webinar-archive/42455
Red-team Hacking tool
I wanted to do something with a Ras Pi Zero that would incorporate my love for red-teaming/offensive security, and I wanted it to take as many paths of least resistance as possible, and it couldn’t be super expensive ($50-ish USD). Now that I had the basic (albeit arbitrary) parameters in place, all I had to … Read more
LibreNMS syslog.ibd cleanup
Recently I ran into an issue where a librenms install was taking up a crazy amount of disk space. This was tracked down to the syslog.ibd file . Even thought I had set my options to be less than 10 days per this link https://docs.librenms.org/Support/Cleanup-options/ I still was having a huge file. Here is what … Read more
HikVision video
For those of you looking for a UBNT camera alternative.
Another Water Tower Install
Another water tower install earlier this year for a client. To critique our own work the cables were moved under the mounts after these pictures were taken. this was done to minimize damage to the cables.
WISP Tower leasing Resources
The following are leasing companies that I have worked with on securing vertical real-estate over the years. This is not a total list of tower companies. If you provide co-location services to Wireless ISPs and want to be included please reach out to me. Donations motivate me to update these lists. Ones with a Star … Read more
How Comcast breaks the IPV6 Internet
So it used to be I received a /56 IPv6 prefix and then my router picked a /64 for my lan. Then it turned into a /60. Now I get a /64 and my router has to turn that into a /72. Come on Comcast, don’t break IPV6 norms.