certificates

Hi all, I was recently playing with SSL certificates on my router and discover a few things which imho can be helpful to solve problems with SSL certificates. Probably everything below was already mentioned somewhere on the forum, but when I was looking for solutions to my problems I had to read...

I've setup an OpenVPN server on my Asus RT-AC66U B1 router running the Merlin firmware. I noticed when I first set this up that you were given a choice of using 1024 or 2048 bit RSA encryption. I used the default of 1024 bit, however, I've read that maybe I should have used 2048 bit since 1024...

Currently using Merlin 384.16 Alpha 2 on ASUS RT-AC68U, and my LE cert won't update anymore and says it's expired whenever I try to login to my router. Does anyone know how to solve this? Here's an interesting snippet form the log: [Sun Mar 15 13:10:08 DST 2020] Standalone mode. Mar 15...

I wasn't paying attention when I followed the Asus Lets Encrypt webUI certificate generation guide and ended up generating a certificate for my LAN IP rather than a resolvable URL. Now, despite factory reset, the setting is stuck on: Status :Updating... Issued to : 192.168.1.1 SAN ...

If i use HTTPS to access my router's management web page from LAN, i get warning that certificate is invalid, chain broken. In short - default certificate in firmware is incorrect. Also, HTTPS access works very slowly, i suspect due to broken certificate chain. How can i fix that? I understand...