Hi! I had never heard of your service, so I googled it and accidentally misspelled "Pixel" as I often do as "Pixle". The first result was a reddit thread and the second seemed to be a full-length rip of Becoming Royal that had some really malicious ads which were clickjacking and covering the content. Just thought you might like to know. :)

Thanks for letting me know. I suspect my advertising partner is doing some shady business on my site. I have been trying to catch them but I never seem to get the malicious ads myself, even when using a VPN from more eastern or southern nations.

Could you maybe send me a screenshot / screen capture of the ads and send them to support@pixeldrain.com? I'd really appreciate that.

I sent you an email. Domain is the same as my un here.

That page is the second organic result for "pixledrain" for me.

The url is https://pixeldrain.com/u/823R39Sc

And it is full of popups, redirects, etc. And maybe acting differently per-referer.

Do you happen to be using an iphone? The malicious ads seem to be targeting iphones specifically. I can't reproduce it myself but I have told my advertiser about it.

I have some leverage here since I'm one of their largest publishers.

Nope, Android. I tried reloading a few times, and the page is normal most of time. So it must be only when a specific ad runs?

Edit: Played around with it a bit. I think (not sure), some of the stuff is coming from this in the page source, near the bottom.

  <script type="text/javascript" src="//optyruntchan.com/400/4189877" data-cfasync="false" async="async"></script>
  </script>

Note that is actually in the page, is NOT the ad, and couldn't have been injected by the ad.

It looks troublesome to me, as I don't see it on other similar pages on your site that also have ads.

Edit: Confirmed. Added "optyruntchan.com" to my local hosts file as 127.0.0.1. The page still has the ad at the bottom, but all the popups, overlays, redirects, are gone.

It's not like pixeldrain has been hacked or anything. I have been serving ads for this company for almost a year. It's just that they decided to serve full screen ads all of a sudden without consulting me.

I have removed them completely for now. I'll just be operating at a loss until I find an alternative ;-(

Ah, okay, sorry. I didn't see that piece of javascript on any other user-created pixeldrain pages, and it isn't involved in the ad at the bottom/center of the page. So, it did seem out of place to me. I can't even tell where it would place an ad.

No problem. I base the ads I show on the size of the file that's being downloaded. Larger files cost more bandwidth so they get more intrusive ads. But I don't want the ads to be so intrusive that they drive users away of course.

Normally these ads would show up as little floating windows in the bottom right corner.

I took a look at the script, it looks _hella_ shady. Some sort of packing I've never seen.

Can anyone recommend a “Control theory for the layman” type textbook? Specifically I’m interested in finding something that gives good overviews and examples, and while I’m not afraid of math, I’m not looking for something overly academic or advanced.

The gold standard introductory book on control theory is "Feedback Control of Dynamic Systems" by Franklin, Powell and Emami-Naeini. While math is absolutely unavoidable when studying the subject, FCDS starts very gently and is quite accessible to the layman.

For someone with a strong mathematical background, what would be a better book? Also, do you know of any that balance the theory with examples, say simulations using R?

I am using Optimal Control Theory An Introduction from Donald Kirk and Modern Control Engineering from Katsuhiko Ogata.

Both are heavy in math, but are not that difficult (I studied theoretical math some 20 years ago and I can read them).

I recommend Ogata as well. Another classic.

Please feel free to ask any clarifying questions, had to cut out about half of what I wrote to keep within the 2k char limit.

I'd say you're a devops engineer

But

Is that it? You just want to know how to answer that question at dinner parties?

Perhaps this comment is why my email has blown up over the past day. It's interesting to see this issue pick up steam every now and then.

Also, if anyone has any good advice on pricing your service, please drop that here too!

Unfortunately, I think that Discord is a no-go w/r/t data security and sovereignty.

The Cloudflare (DNS) Updater Program

CUP is a tool to turn CloudFlare DNS into a Dynamic DNS service.

I got fed up with the lack of good and robust Dynamic DNS services out there, so I decided to do something about it.

Thus CUP was born. A tool that turns Cloudflare’s excellent DNS service into a Dynamic DNS service. All for free!

CUP is a single-binary go application that makes updating Cloudflare's DNS service with your current public IP a breeze.

Interested in getting HN’s opinion on this.

Thanks for the information! CSP definitely sounds like something to look into.

Thank you for the detailed response!