If you are an ISP, run your own DNS resolvers
Glenn Kelley has a great article on spinning up your own DNS resolvers. This is a critical piece of infrastructure if you are in internet Service Provider (ISP). https://www.linkedin.com/pulse/making-dns-server-your-network-uses-root-hints-glenn-kelley As Glenn writes. Here’s why ISPs should consider running their own: …
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 …
OpenGear Resilience gateway for ISPs
Some quick notes and screenshots from the OpenGear Resilience Gateway https://opengear.com/products/acm7000-resilience-gateway . The model I am working with is the ACM7004-2-L. It has 4 serial Cisco Straight pinout, Dual 1 GbE Ethernet, Global 4G LTE-A Pro cellular, 2 DIO, and …
OpenVPN, rooter project, and Mikrotik
Tutorial on Using The Rooter project to establish an OpenVPN connection to a Mikrotik router.
Everything you wanted to know about NTP
Network Time Protocol (NTP) is a service that can be used to synchronize time on network connected devices. Before we dive into what NTP is, we need to understand why we need accurate time. The obvious thing is network devices …
How to install windows server 2019 on VMWare
How to install Windows Server 2019 from Microsoft on VMWare. https://www.sysnettechsolutions.com/en/server2019/install-windows-server-2019-vmware-workstation-14/
The importance of Network Monitoring Systems (NMS)
One of our open tickets on MidWest-IX is a member reporting slow speeds on their exchange port. After having them send us some data and a few e-mails back and forth we began looking at their switch port on the …
Running our own mail server? SPF, DMARC primer
Are you running your own mail server? If so, check out this primer from the folks over at MX Toolbox.
Route Server Diagram for an IX
Normally on a peering exchange, all connected parties will establish bilateral peering relationships with each other customer connected to the exchange. As the number of connected parties increases, it becomes increasingly more difficult to manage peering relationships with customers of …
Intel Nuc
More details and review coming soon. Gi joe for size reference.