Author name: Dan Langille

I've been playing with computers since I read an Elementary Electronics magazine way back in the 1970s. I started contributing to open source projects in 1998. After that, I gradually moved from being a software developer to being a systems administrator.

acme.sh – Let’s Encrypt: Renewing using Le_API=https://acme.zerossl.com/v2/DV90

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For a few days now, the cronjob which runs acme.sh to renew my Let’s Encrypt certificates was tossing out errors for the same two certs. Today, I went looking in the logs. In this post: FreeBSD 15.0 acme.sh-3.1.3_1 hostnames have been altered to obscure those actually in use – the real reason I do this is to trigger the security by obscurity zealots The cronjob My cronjob looks like this: The logs The […]

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r7425-01

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This is the Dell R7425 host known as r7425-01. At idle, despite holding 12 x 12TB HDD, this chassis is pulling about 300-350 watts. gpart zpool list zpool status zfs list dmesg sesutil show [22:28 r7425-01 dvl ~] % sudo sesutil show ses0: ; ID: 500056b345a433ff Desc Dev Model Ident Size/Status Drive Slot 0 da0 ATA HGST HUH721212AL 8CGSV9DG Unknown Drive Slot 1 da1 ATA HGST HUH721212AL 8CGSXG6G Unknown Drive Slot 2 da2

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zfs – a helper script for labelling all those drives

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I now have a Dell R7425 with 12 x 12TB HDD in the basement. A raidz2 zpool would give me about 120TB – with a significant resilver time. I have also thought about a creating 6 x mirrors and striping across them. That would give me about 72TB – that’s still a lot. However I do it, I’m going to label the partitions with the drive slot and serial number. I’m going to

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/usr/local/sbin/rrsync error: unsafe arg: / [”, ‘/usr/home/rsyncer/backups’]

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On Monday morning, I had eight emails each notifying me of a failed rsync attempt. This is one of those messages: Well, that’s a new one to me. This post will eventually show you the solution, and if that’s what you need now, jump to the bottom. If you’re not in a rush, I’m sure the following reading will be funny and a cure for your insomnia. Wow, … that sounds like Michael

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r730-01

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This post has been replaced by a newer post. This is the Dell R730 host known as r730-01. For reference, the previous post on this server is still available. This host has undergone major storage changes over the past few weeks. This post will reflect those changes This is my primary developer server in my basement. gpart zpool list zpool status zfs list dmesg sesutil show [18:41 r730-01 dvl ~] % sudo sesutil

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Increasing a bhyve vm disk

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This post is mostly notes for myself. There’s no real useful information here, apart from how to increase the disk space of your vm-bhyve instance. I’m just back from a short time away. I noticed my Home Assistant instance was running, but not responding. In this post: FreeBSD 15.0 vm-bhyve-1.7.3 I stopped and started it: [17:41 r730-01 dvl ~] % sudo vm list NAME DATASTORE LOADER CPU MEMORY VNC AUTO STATE hass default

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newsyslog – telling it not to compress, for anything

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In this post, I’m going to show you how I told FreeBSD’s newsyslog to ignore any compression directives and just rotate the file. I will also speculate about some historical items which may be widely incorrect. If you wish to correct any inaccuracies, I will update them here. In this post: FreeBSD 15 wild speculation as to how logging, newsyslog, and compression evovled many paragraphs which aren’t related, but you may find interesting,

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migrating data02/freshports/dev-nginx01 to data04

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This post will be short on detail. I’m writing it for myself, to document what I’m doing. I suspect Migrating data02/freshports/dev-ingress01 to another zpool will be more useful to you. In this post: FreeBSD 15.0 I stopped the jail: [15:30 r730-01 dvl ~] % sudo service jail stop dev-nginx01 Stopping jails: dev-nginx01. I took dev.freshports.org offline via: The source Now, you might look at that, and wonder why the filesystems are offline. This

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Cleaning up snapshots

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Now that I’ve copied two filesets from one zpool to another, let’s delete old snapshots. In this post: FreeBSD 15.0 Freeing up space I’m still hesitant to delete original data, but I’ll delete the snapshots. Here’s my list: [20:25 r730-01 dvl ~] % zfs list -H -o name -r -t snapshot data02/freshports/dev-ingress01.DELETE.ME.after.2026.05.15 | grep -v for.data04.0 | less data02/freshports/dev-ingress01.DELETE.ME.after.2026.05.15/dvl-src@autosnap_2026-04-15_00:00:03_daily data02/freshports/dev-ingress01.DELETE.ME.after.2026.05.15/dvl-src@autosnap_2026-04-16_00:00:16_daily data02/freshports/dev-ingress01.DELETE.ME.after.2026.05.15/dvl-src@autosnap_2026-04-17_00:00:07_daily data02/freshports/dev-ingress01.DELETE.ME.after.2026.05.15/dvl-src@autosnap_2026-04-17_19:00:02_hourly data02/freshports/dev-ingress01.DELETE.ME.after.2026.05.15/dvl-src@autosnap_2026-04-17_20:00:02_hourly data02/freshports/dev-ingress01.DELETE.ME.after.2026.05.15/dvl-src@autosnap_2026-04-17_21:00:09_hourly data02/freshports/dev-ingress01.DELETE.ME.after.2026.05.15/dvl-src@autosnap_2026-04-17_22:00:09_hourly data02/freshports/dev-ingress01.DELETE.ME.after.2026.05.15/dvl-src@autosnap_2026-04-17_23:00:11_hourly … data02/freshports/dev-ingress01.DELETE.ME.after.2026.05.15/scripts@autosnap_2026-04-19_19:15:13_frequently data02/freshports/dev-ingress01.DELETE.ME.after.2026.05.15/scripts@autosnap_2026-04-19_19:30:02_frequently data02/freshports/dev-ingress01.DELETE.ME.after.2026.05.15/scripts@autosnap_2026-04-19_19:45:11_frequently data02/freshports/dev-ingress01.DELETE.ME.after.2026.05.15/scripts@autosnap_2026-04-19_20:00:01_hourly data02/freshports/dev-ingress01.DELETE.ME.after.2026.05.15/scripts@autosnap_2026-04-19_20:00:01_frequently That

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after moving datasets, adjust configuration for sanoid and others

Leave a Comment / Bacula, FreeBSD, General, homeassistant, Open Source, sanoid, ZFS / By /

Earlier today, I moved two file systems from one zpool to another. I use sysutils/sanoid to take and manage snapshots of the more important data. In this post, I’ll update that configuration. Migrating ZFS filesystems from one zpool to another – same host Migrating data02/freshports/dev-ingress01 to another zpool These are the items which need updates: [20:04 r730-01 dvl ~] % sudo cp -p /usr/local/etc/sanoid/sanoid.conf /usr/local/etc/sanoid/sanoid.conf.backup.2026.04.19 [20:08 r730-01 dvl ~] % sudoedit /usr/local/etc/sanoid/sanoid.conf [20:03

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