After spending 45 mins applying several “advanced” techniques to solve a problem essentially of the form
2a^2 - 2a - C = 0
and getting nowhere. When I finally spotted I could complete the square I was so happy. Don’t let your knowledge blind you from the obvious…
Unfortunately, my Internet provider, @bt_uk (AS2856), does NOT implement BGP safely. Check out isbgpsafeyet.com to see if your ISP implements BGP in a safe way or if it leaves the Internet vulnerable to malicious route hijacks. via @Cloudflare
