Back in the good old days, I managed my DNS zones files by checking them into the repo, and then running svn up on the name servers. When I started using Let’s Encrypt, I stopped doing that because of the use of nsupdate. This post outlines how I added two new zones to my nameservers: […]
Adding new DNS zones when using nsupdate & bind Read More »
I am about to make changes to my mail servers. I am changing third-party providers. In anticipation of this change, I will drop the TTL on my DNS MX records. This should minimize the time it takes for this change to take effect. I say should because not all servers honor the specified TTL. I
Adjusting the TTL on domain records Read More »
I use bind (Berkeley Internet Name Domain) as my DNS server. I am currently running bind 9.11.5P1 on FreeBSD 11.2-RELEASE-p8 in a jail, with iocage as my jail manager. The OS, jail, and jail manager should play no part in how this works. I have been collecting statistics from bind for some time. I have
Collecting statistics from bind / named Read More »
You have an old DNS server: tallboy.example.org You have a new DNS server: ns1.example.org You have a domain, example.com, for which you want to swap the old DNS server with the new DNS using nsupdate. NOTE: the domain is example.com The NS servers are in example.org (different domains). These are the commands you issue: update
Using nsupdate to change NS servers Read More »
FreshPorts recently moved to an IPv6-capable server but until today, that capability has not been utilized. There were a number of things I had to configure, but this will not necessarily be an exhaustive list for you to follow. Some steps might be missing, and it might not apply to your situation. All of this
Adding IPv6 to an Nginx website on FreeBSD / FreshPorts Read More »
Today I moved the FreshPorts website from one server to another. My goal is for nobody to notice. In preparation for this move, I have: DNS TTL reduced to 60s Posted to Twitter Updated the status page Put the website put in offline mode: Sorry, the website is offline from 2017-11-05 17:01, for approximately 3
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 »
This blog post describes my Let’s Encrypt solution which uses acme.sh and dns-01 challenges to obtain SSL certificates. If you are using HTTP challenges, this post might still be useful, but your configuration will differ slightly. Let’s Encrypt is a certificate authority which has become wildly popular since it was launched in April 2016 (just
acme.sh: getting free SSL certificates – installation configuration on FreeBSD Read More »
What is a hidden DNS master? If you need to ask that, this is not the blog post for you. This post assumes you already know how to configure DNS and just want ideas for your own hidden master. It also assumes the networking, VPN, and firewall are pre-configured for this. This blog post is
I’m in the process of designing my own centralized Let’s Encrypt solution. It was Peter Wemm’s blog post about Let’s Encrypt in the FreeBSD cluster which got me started down this road. My rough notes are this this gist. This blog post assumes you are already familiar with Let’s Encrypt and especially with the dns-01
Creating a TXT only nsupdate connection for Let’s Encrypt Read More »