Monitoring your UPS using nut on FreeBSD

Leave a Comment / FreeBSD, Nagios, nrpe, nut, Open Source, UPS / By /

It is time to replace my existing UPS with another one. I’m getting only 3 minutes of runtime with the existing batteries (and new batteries, after recalibration). It was suggested I buy an Eaton 5PX. I wasn’t convinced. This is the first of three articles about nut. The second is about testing the shutdown. The third will be about testing both shutdown and startup timings. Two days later, I’d purchased a new Eaton […]

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Some OpenVPN notes, just for me

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Today I added a OpenVPN client to a recent laptop I acquired. It was for my mom, but COVID19 has prevented that trip. Sometimes a task is so rarely performed that the steps are unfamiliar or even unknown. This is what I had to do today. The client zip package I create with ssl-admin works fine. Only two changes required from the default settings after importing the files into Viscosity (the OpenVPN client

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laptop hits load averages: 407.41 128.53 49.18 during start up

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I’m not complaining. It’s just very amazing how much work a laptop does to start up. As soon as I can get a terminal session I start: [dan@air01:~] $ w 18:13 up 3 mins, 11 users, load averages: 164.29 42.91 15.80 USER TTY FROM LOGIN@ IDLE WHAT dan console – 31Dec19 230days – dan s000 – 18:12 – -bash dan s001 – 18:12 – -bash dan s002 – 18:12 – -bash dan s003

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Changing from one dataset to another within a FreeBSD [iocage] jail

Leave a Comment / FreeBSD, FreshPorts, Open Source, snapshots, ZFS / By /

ZFS has a the ability to share itself within a jail. That gives the jail some autonomy, and I like that. I’ve written briefly about that, specifically for iocage. More recently, I started using a zfs snapshot for caching clearing. The purpose of this post is to document the existing configuration of the production FreshPorts webserver and outline the plan on how to modify it for more zfs-snapshot-based cache clearing. The current configuration

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hostmask on an ip address can affect jail DNS

Leave a Comment / DNS, iocage, Jails, named, py-iocage / By /

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 out to the various hosts: devgit.freshports.org dev.freshports.org test.freshports.org stage.freshports.org There are more, but you get the idea. Each

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Unintended shutdown of the #homelab

Leave a Comment / FreeBSD, General, UPS / By /

Today was battery replacement day at my place. The UPS batteries were replaced without downtime. That doesn’t mean there wasn’t downtime. I am not documenting this in real-time. This is post-event analysis. First, I wanted to change the battery replacement date, so I ran acptest on the pfSense server, to which the UPS is connected to. [2.4.5-RELEASE][admin@bast.int.unixathome.org]/root: apctest 2020-08-15 14:51:30 apctest 3.14.14 (31 May 2016) freebsd Checking configuration … sharenet.type = Network &

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Converting an iocage jail from vnet

Leave a Comment / FreeBSD, iocage, Open Source, SamDrucker / By /

There are known problems with vnet and firewalls. I’ve been plagued by such issues for months. In this case, my git jail, I’m giving up and moving away from vnet jails. This post documents how I did this. Get the IP address Make sure you know the existing IP address of that jail. It might be defined within the jail, via /etc/rc.conf. It might be in the jail configuration. I ssh‘d into the

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starting service would freeze the terminal session

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I noticed a problem with a newly-created freshports daemon script: starting it would sometime freeze the terminal session. The rc.d script The rc.d script was fairly straight forward: Nothing odd there, right? This first happened a week or so ago. I moved on it and decided to look into later. But wait, there’s more This issue came up again today. The system would be processing incoming commits and it would hang. It would

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mysqldump: Error: ‘Access denied; you need (at least one of) the PROCESS privilege(s) for this operation’ when trying to dump tablespaces

Leave a Comment / Backups, FreeBSD, mySQL, Open Source / By /

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 upgrade of MySQL server from 5.7.30 to 5.7.31, my database backups started encountered this error: mysqldump: Error: ‘Access denied; you need (at least one of) the PROCESS privilege(s) for this operation’ when trying to dump tablespaces The search Searching, I found a Kanyakonil post which

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Creating a new iocage jail

Leave a Comment / FreeBSD, iocage, Jails, Open Source / By /

Every time I go to create a new iocage jail, I cannot remember out the command. Here we go, for next time: iocage create -n devgit-ingress01 –thickjail host_hostname=devgit-ingress01.int.unixathome.org ip4_addr=10.0.0.141 –release 12.1-RELEASE iocage create -n devgit-nginx01 –thickjail host_hostname=devgit-nginx01.int.unixathome.org ip4_addr=10.0.0.147 –release 12.1-RELEASE

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