FreeBSD

Invoking ddclient from dhclient to update 3rd party dynamic dns hosts on FreeBSD

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In this post: FreeBSD 14.2 ddclient-3.11.2 Ansible playbook for ddclient: https://github.com/dlangille/ddclient/ forked from https://github.com/hammadrauf/ddclient/ In my previous post, I configured dhclient to setup my Hurricane Electric tunnel and notify HE of same. First attempt: [12:39 gw01 dvl ~] % sudo ddclient [12:47 gw01 dvl ~] % tail /var/log/messages … Mar 6 12:47:50 gw01 ddclient[52929]: WARNING: ” is not a valid IPv4 or IPv6 address Mar 6 12:47:50 gw01 ddclient[52929]: WARNING: found neither IPv4 […]

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Debugging aids for pf firewall rules [on FreeBSD]

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It is not often that I need to debug pf firewall rules. Yet, when I do, I cannot remember the commands for what I want to do. What is being blocked First, I want to see the firewall rule numbers in the tcpdump output. I am logging all blocked packets, via pflog0. I can use that to see what is being blocked and by what rule. These are found in my /etc/pf.conf: There

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Is deleting empty snapshots faster?

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During the 2025-01-22 OpenZFS Production User Call, ‘atomic operations’ was mentioned with respect to ~/tmp/deleting zfs list -r -t snapshot data01/snapshots/deleting > ~/tmp/deleting 2.54s user 48.47s system 99% cpu 51.042 total 50 seconds. That’s OK. 60,000 deletes starting on the 23rd I started the delete. Actually, it’s not 60,000 deletes. It’s one destroy, of 60,000 snapshots. [12:52 r730-03 dvl ~] % time sudo zfs destroy data01/snapshots/deleting@1%60000 After starting the above command, I started

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Way too many snapshots

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In this post In this post, we have: FreeBSD 14.1-RELEASE-p5 r730-03 Lots of boring repetitive sections, so skip over that to find what you need This article was written over a couple of days. The zpool in question is 3 pairs of 12TB HDD: [13:44 r730-03 dvl ~/tmp] % zpool status data01 pool: data01 state: ONLINE scan: scrub in progress since Fri Jan 17 05:29:21 2025 22.1T / 26.1T scanned at 200M/s, 19.2T

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Why does the same command appear on two different ports with different times?

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While I was destroying some snapshots, I found this interesting / disturbing. Why is the same destroy appearing twice, on different TTYs? [16:11 r730-03 dvl ~/tmp] % w | grep air dvl pts/2 air01.startpoint.vpn.unixathome.org 1:04PM 2:18 sudo zfs destroy data01/snapshots/homeassistant-r730-01@autosnap_2024-10-19_22:15:08_frequently dvl pts/1 air01.startpoint.vpn.unixathome.org Fri11PM – w dvl pts/4 air01.startpoint.vpn.unixathome.org 4:11PM – sudo zfs destroy data01/snapshots/homeassistant-r730-01@autosnap_2024-10-19_22:15:08_frequently dvl pts/5 air01.startpoint.vpn.unixathome.org 1:07PM 33 -zsh (zsh) What’s up with that? And why different times? It is not

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Creating jails in a jail for testing /etc/jail.conf

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This is work from April 2021, and sometimes there is a need to do a jail in a jail. This shows how. I want to testing jail.conf, in a jail. I don’t want to test this on a host, because that might interfere with existing jails. This is related to a FreeBSD code review which will add support for jail.d – that means you can have something like /etc/jail.d.conf/foo.conf which is the configuration

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PF states limit reached – on three different host at nearly the same time

Leave a Comment / DNS, FreeBSD, LibreNMS, named, Open Source / By /

What are the chances that three different hosts, in thee different datacenters all display these messages within seconds of each other? The uptimes: [dvl@r720-02:~] $ uptime 1:42PM up 62 days, 15:01, 2 users, load averages: 0.04, 0.12, 0.18 [13:42 tallboy dvl ~] % uptime 1:42PM up 62 days, 15:37, 2 users, load averages: 0.17, 0.37, 0.34 [13:42 zuul dan ~] % uptime 1:42PM up 62 days, 14:56, 2 users, load averages: 0.24, 0.25,

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Converting a subversion repo to git

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This is not finished. It has been posted for review. When this paragraph is gone, the post is finished. I’ve wanted to convert my subversion repos to git for years. It’s never been a high priority. But here we go. First, I created a local temporary and insure subversion repo with a copy of my real repo. This allows me to mess up and not affect the real repo. I’m sure nothing I’m

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Setting up a local subversion repository server with nil security

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There is much code for FreshPorts which lives in a subversion repository in my basement. I have long wanted to convert that to git and move it to git hub. In this post: FreeBSD 14.1 subversion 1.14.4 Which reminds me: I need to find a tool which backs up Github repos for me. Preferably everything under an organization. Just in case. I will copy the data from my repo to another host and

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zpool replace

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Yesterday, I added a new drive into the system. Today, I will replace the failing drive with that one. In this post: FreeBSD 14.1 Before [18:23 r730-03 dvl ~] % zpool list NAME SIZE ALLOC FREE CKPOINT EXPANDSZ FRAG CAP DEDUP HEALTH ALTROOT data01 32.7T 26.0T 6.76T – – 32% 79% 1.00x ONLINE – zroot 412G 18.5G 393G – – 18% 4% 1.00x ONLINE – [18:24 r730-03 dvl ~] % zpool status data01

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