Recently, I discovered that I was not able to email my wife's mac.com address from my mail server here. Apple's support document indicates that they require DKIM and SPF, and that they support DMARC. I have long had SPF configured, but I had not configured DKIM or DMARC.

Over …Continue reading

Continuing my earlier post about my Yaesu FT-7800R install, I completed the radio portion this weekend, so now I can get on the air.

I had a Diamond NR770HNMO antenna, and bought a fender bracket mount for my F150. All I needed was an NMO mount and to fish the …Continue reading

This is not my typical type of post, but as I have said, communications and networking are things that excite me greatly. It's why I collect antique telephones, why I enjoy scanner and shortwave listening, why I learned the OSI model and have spent much of my career in and …Continue reading

I recently learned about the program map type in the Linux automounter.

You can read about it here, but there is little information about it, and I was unable to find any web pages about it, so I am writing this post since it might help others.

The NFS automounter …Continue reading

As mentioned previously, I continue to be inundated with spam email. Fortunately, every spam has an observable email format: the email comes in the form of user@word1.word2.TLD.

This allows me to update my blocked_senders file to defer every email in that format with a 450, using …Continue reading

I've been busy at home, but not working in my home lab. Lately I have been preoccupied by a few things.

First, I have been busy with prepping -- I can see how things are going, and I predict we will need stores of supplies, so I have been busy building …Continue reading

Somehow I have been added to several mailing lists, all run by the same organization. The emails look legit, and are ones that I might have subscribed to, but I cannot get off of them no matter what I do -- it seems that they ignore all requests to be removed …Continue reading

I have been programming in Perl since the early 1990s. My early scripts were what you would expect them to be, but my skill of course increased over time. I have never found a thing I wanted to do that I could not do in Perl and/or shell scripting …Continue reading

For my storage needs, my first NAS was a Synology DS415+. This was my primary NAS until I purchased a DS1618+, at which time it became my backup unit. When I filled up the DS1618+, I had a few options: buy a small NAS and use some 4TB disks I …Continue reading

I have recently switched most of my offsite network connections to WireGuard, away from ZeroTier. This is great for all of my systems except for one: the NAS (a Synology DS118) I have at a friend's house for offsite backup. That NAS can run ZeroTier and WireGuard, but I don't …Continue reading