Today I faced the first implications of deciding to tightly restrict the use of nsupdate keys for modifying TXT records for dns-01 challenges with Let’s Encrypt. Context This section should be on news.freshports.org and you can skip it to get to the real stuff. Today I’m working on a mostly automated FreshPorts node deployment. A …
Today I faced the first consequences of my TXT & Let’s Encrypt strict policy Read More »
In the interests of maintaining Michael W Lucas in the lifestyle to which he has become accustomed, I am creating this blog post. Although Mr Lucas was the first to post, he is not solely to blame for my burdensome workload. Jan-Piet Mens and Evan Hunt also have much to answer for. Their misdeeds include …
Creating a very specific TXT only nsupdate connection for Let’s Encrypt Read More »
I recently became aware that ACME DNS validation can be accomplished via proxy. By proxy, I mean you can update the DNS records of another domain, not the domain for which the certificate is being issued. Why would you do this (as taken from acme.sh DNS Alias Mode): Your DNS provider does not provide API …
Today I gave up on my attempt to allow relay via SSL certificate fingerprints. Instead, I will use sasl auth. Yesterday I wrote about my SMTP deliver test which broke when an SSL certificate was updated. Later that day, I finished writing scripts which delivered that fingerprint file to all hosts which needed it. Today, …
No more certificate fingerprints – only sasl auth instead Read More »
Let’s Encrypt is an easy way to get free SSL certificates in an automated manner. You may never have to manually do another cert renewal again. Last night, I received this email: From: Cron Daemon To: dan@langille.org Subject: Cron /usr/local/bin/cert-puller Date: Fri, 23 Feb 2018 23:57:00 +0000 (UTC) /etc/rc.conf: 3: not found /etc/rc.conf: yr: not …
Postfix suddenly starts rejecting email it had been accepting Read More »
In the past, I’ve written about using acme.sh to automatically generate SSL certificates and distribute them to the required locations. I do this in a single central location, and the websites and mail servers grab their new certs from a webserver. At the time of writing, I was using FreeBSD 11.1 and acme.sh 2.7.4, supplied …
Getting acme.sh to renew certs via cronjob on FreeBSD Read More »
Now that I have configured my webserver to pull down any new certificates, now it’s time to configure my clients to pull certificates from the webserver. In my quest for a centralized Let’s Encrypt solution, I’ve created the FreeBSD port for acme.sh (an ACME client for Let’s Encrypt) and anvil, a tool for distributing and …
cert-puller: using anvil to pull down & install new certificates, then restart services Read More »
In my Let’s Encrypt implementation, I am using a centralized acme.sh solution which generates all the certificates I use and authenticates via dns-01 challenges. I use anvil to distribute those certificates. In this post, I will describe how the website pulls the certificates down from the rsync-jail. I will assume you have read my previous …
I have already described how I use acme.sh to obtain SSL certificates from Let’s Encrypt. Today, I’m going to show you how I use anvil to copy those certificates from the original location to another directory, which is then used for rsync by another jail. Throughout this blog post, it is assumed that the cert-shifter …
cert-shifter: copying certificates from acme.sh to a fresh directory Read More »
I’m in the end-stages of finishing off my centralized Let’s Encrypt solution and I’ve released my code as an open source project named anvil. I’ve also created a FreeBSD port. In this post, I outline the anvil tools and how I use them. In future posts, I will detail the individual components, some of which …
Introducing anvil – Tools for distributing ssl certificates Read More »