Possible Downtime Tomorrow

One fact which I’ve posted about often, is that I host my Web-site and blog on a private computer at home, even though this is probably not what most people should do. Therefore, the availability of my site is only as good, as my ability to keep my computer running, as well as the quality of my Internet connection.

It’s past 22h00 on June 25, 2020 as I’m writing this. But, the possibility exists that, due to some emergency work which will need to be done on my home, my power may need to be cut by 9h30 tomorrow morning.

If that happens then, once again, my blog will be offline.

I apologize.

(Update 6/26/2020, 6h15: )

It turns out that the emergency work, which was pending for my domicile, will not need to take place. Therefore, there should not be any power-cut, and, for the moment, this site and blog will just remain operational.



DSL Problems, Downtime

I take the unusual approach of hosting my Web-site, and therefore also my blog, not on a professional hosting service, which is what most people would do, but on my personal computer at home. What this means is that the visibility of this blog is only as good, as the Internet connection that I have from home. And so, where some subscribers to my ISP may only describe trivial problems with their service, this blog has downtime, due to the slightest problem with my DSL connection.

Well, yesterday, March 8, between 14h00 and 15h00, as well as today, March 9, between 10h00 and 13h05, there were issues with my DSL again, each one a brief issue, during which my blog would not have been visible. I apologize for any inconvenience to my readers.

There has been quite a history of such problems, specifically affecting my blog. The last time a Bell Technician needed to come, he needed to replace circuit-boards that exist in the network node, and which therefore exist on the side of the ISP. But because of both:

  1. The actual lines having been reconnected (earlier), and
  2. This hard, described problem of the circuit boards resulting in their replacement,

This describes repairs to the satisfaction of my ISP, and there was hope that there might be no more connection issues. However, connection issues have returned to my home. Because the two types of problems I listed above won’t normally ‘unfix themselves’, I have to assume that I’m running in to a new type of problem now, which my ISP has not yet diagnosed.

(Update 3/10/2019, 13h40 … )

Continue reading DSL Problems, Downtime

DSL Problems, Downtime

I take the unusual approach, of hosting my Web-site and blog on my personal PC at home, instead of on a hosting service. This means that the visibility of my blog is only as good, as my Internet connection at home.

Well sometimes it has been happening to me lately, that I’ve had DSL problems, such as according to this earlier posting. When this happens, my site experiences downtime.

Even though my service has been stable for about a month now, as of 21h00 last night, February 22, this has been happening to me again. I’m going to work with my ISP to try to resolve the issue as before. In the meantime I apologize for any inconvenience to my readers.


As of 12h00, February 23, the connection seems stable for the moment.



A Possible Vulnerability, in our Above-Ground Telephone Cables

When I was a young teenager, I sometimes spoke to tech professionals, who were working on power-lines and/or telephone cables, the latter of which were strung above-ground from the usual telephone poles. Sometimes, those tech professionals were disposed to answer my curious questions.

What above-ground telephone cables had or have, is refrigeration stations at some of their connection-points, that refrigerate air to “-20⁰C”, which also makes the air very dry, and then to feed that air into the cables in compressed form. The purpose of this exercise is to prevent moisture buildup inside the telephone cables, that have hundreds of wires, if not thousands of wires.

Assuming that such a unit is being used, the question remains unanswered of how it’s supposed to work, if the outside air temperature is below -20⁰C. If the process continues, then air will be fed into the cables at a higher temperature than the ambient temperature, at which point technically, the air being fed in is also moister, than the saturation point of the ambient air. (:1) What could follow, is ice build-up in the cables, and, when the temperature outside rises suddenly, the ice can melt.

I’m not sure what the exact conductivities are, but think that liquid water conducts better than ice, so that liquid water can cause shorting of the telephone wires inside the cables. I suppose that if the ambient air stays warm long enough, continued feeding of cold, dry air into the cables can dry out the cables again…

(Updated 1/20/2019, 7h40 … )

Continue reading A Possible Vulnerability, in our Above-Ground Telephone Cables