Update: Comments on my blog with isso Comments System

Sometimes, reading logs does make sense after all.

I found out that comments cannot be created, as the server returns a 404 error. It took a bit until I realized why…

My isso application is hosted on an air-gapped machine. A request can be sent in, but everything going out is blocked by firewall. I do that with most of my applications. My policy is: In general, I block all traffic, unless there is a reason not to.

Now as it turns out, placing a comment works as follows:

• I send a request to isso that they should create a comment to a specified thread.
• Isso checks at the website if this site actually exists.
• In case this check is positive, it creates a thread for it and then stores the comment.

Now it should be obvious where the problem was: The request failed. Sadly, there was no logging at all from Isso’s side, so I had to find that out the hard way.