DNS

Use of K* file pairs for HMAC is deprecated – acme.sh

On Wednesday Oct 6th, I was greeted by these log messages: This is the output from the cronjob run by the acme user in my jail called certs. This is the daily run to renew any certificates which are soon to expire. This is the job in question: [19:36 certs dan ~] % sudo crontab

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nsupdate – update failed: REFUSED

A while back, the https://www.freebsddiary.org/topics.php#opteron – the colo facility was purchased and the new owners are not interested in donating services to open source projects. That host also acted as a DNS host for all my domain. I pressed a small VPS into service. It handled the query services fine, but updates were sluggish. It

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Today I faced the first consequences of my TXT & Let’s Encrypt strict policy

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

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Creating a very specific TXT only nsupdate connection for Let’s Encrypt

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

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Using split DNS for websites hosted locally

The dev.freshports.org website is hosted on server in my basement. For you, that IP addresses resolves to a publicly available IP address. For me, that IP address resolves to an RFC 1918 address: $ host dev.freshports.org dev.freshports.org has address 10.55.0.24 Sometimes this is referred to as split dns, also known as split-horizon DNS, split-view DNS,

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hostmask on an ip address can affect jail DNS

I encountered, and later solved, a DNS issue on a FreeBSD jail. The jail is my web proxy, of sorts. I have one public IP address, which is dynamic (not relevant, but mentioned only in passing) so all incoming web traffic goes to a single internal RFC-1918 IP address. From there, nginx does reverse proxies

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