Author name: Dan Langille

Nagios 3: moving from nrpe 3 to nrpe 4 – what needs changing?

Yesterday, I noticed this message in one of the “daily security run output” emails which FreeBSD host can send out. I’ve used net-mgmt/nrpe3 for several years. It checks remote hosts and runs any number of predetermined commands and returns the results. It’s stable, highly configurable, and just keeps running. I had a look at the […]

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mysqldump: Couldn’t execute ‘FLUSH TABLES’: Access denied; you need (at least one of) the RELOAD or FLUSH_TABLES privilege(s) for this operation (1227)

This article is a copy/paste/modify of mysqldump: Error: ‘Access denied; you need (at least one of) the PROCESS privilege(s) for this operation’ when trying to dump tablespaces. See also Creating read-only PostgreSQL database users for pg_dump and pg_dumpall. I’m linking this because I use both articles on a regular basis. The error After a recent

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Is your jail not getting an IPv6 address soon enough? Blame DAD.

I have jails with both IP4 and IPv6 addresses. Lately, I’ve been noticing this in /var/log/messages: And this in console messages: Looking in the jail, it had IPv6 addresses. What gives? In this post: FreeBDS 13.1 The jail example I had a jail, similar to this: After the jail started, I could see both IP

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Home Assistant Let’s Encrypt Add-on – how to get the newly obtained cert used?

I have the Let’s Encrypt Add-on configured for my Home Assistant logon. I got it to renew. I see the cert is stored at /data/letsencrypt/live/hass.example.org/fullchain.pem. But I don’t see directory in my terminal session for Home Assistant. It’s as if I should just give up and use an Nginx proxy instead. At least I know

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Home Assistant running natively on FreeBSD via bhyve

This is is mostly written after-the-fact without good notes. Much of what I’m writing is pulled from a tweet and from things I did as I later copied this VM from one host to another. In this post: FreeBSD 13.1 vm-bhyve-1.5. edk2-bhyve-g202202_1 qemu-7.2.0 Much of what I’m doing is based up David Reid’s blog post:

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Moving ZFS filesystems/datasets from one ZFS zpool to another

Now that I’ve filled up data01, I bought some more SSDs and created another zpool. Today, on this snow-is-anticipated Saturday winter morning, I’m going to move some ZFS filesystems/datasets around. Side note: I like the term dataset better than filesystem. man zfs talks about datasets, which can be a file system, a volume, a snapshot,

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