So, recently while testing some coding I questioned myself, what would be better performance wise, if trying to access a dictionary key directly with a try/except strategy or if I would make use of If key in access.
In this post we will se how to fix unavailable upstreams in Nginx when using reverse proxy capabilities of nginx, with servers that aren’t reachable at the time of starting Nginx.
OSCP or Online Certificate Status Protocol for friends, provides a centralized mean of checking certificate validation and revocation by a central authority in the form of a Certificate Authority that migh emit and revoke certificates.
So you have created your Letsencrypt certificate using certbot, and now wish to import the generated certificate to your already existing server such as Wildfly or Tomcat that makes use of a Javakeystore, and where you were previously using your self signed certificate that comes along with each tutorial.
Since I’m running iptables modifications via ansible inside docker containers, with Ubuntu as my Host OS, I’m frequently hit by being unable to do something like, when defining iptables rules in init.d :