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, […]
Using split DNS for websites hosted locally Read More »
This work was done in August. Since then, I have replaced the APC with an Eaton 5PX, and I am much happier. This might make for interesting reading, but that depends on how bored you are.. Following on from my failed calibration attempts, I thought I would try it again this morning before work. In
Recalibrating an APC UPS Read More »
I have written about backing up your MacBook to a ZFS-based Time Capsule. Today, I restore. I am setting up a laptop to be just like my other laptop. This is not a disaster recovery incident, but it could be. In this post: The laptop is on the same network as the time capsule host
Restoring your non-Apple Time Capsule from your Mac Read More »
I have these boot drives, I want to copy them to another. They both happen to be zroot and bootable. I booted from mfsBSD and imported both new and old zroot, using the pool ID shown by zpool import -N. root@mfsbsd:~ # zpool import -N pool: data01 id: 2668514456528412656 state: ONLINE action: The pool can
Duplicating a zpool Read More »
In this post, I am creating a 4 drive ZFS pool consisting of two mirror. In this post: I’m booting from mfsBSD 12.1 ZFS Creating partitions On FreeBSD, it is convention to create partitions. It is not necessary, but I don’t use all the space in case a future replacement drive is slightly smaller than
Creating a 4 drive ZFS zpool: stripe over mirrors Read More »
Dell PowerEdge Servers are common in #homelab use. The hardware gets sold after it goes out of warranty and they get dumped. Most of the disk cards in these servers come flashed for use with RAID and RAID only. Never use a RAID card with ZFS. Always give ZFS direct access to the drives. I
Dell R720 flashing Dell PERC H710 mini into IT mode Read More »
This post documents the PDU settings so I know what is plugged in where and the delay they have on power up. pdu1 – before pdu1 – outlet 1 – r720-01 pdu1 – outlet 2 – knew pdu1 – outlet 3 – slocum pdu1 – outlet 7 – LTO4 tape library pdu1 – after pdu2
Today I tested the shutdown but was mostly concerned by the startup. I wanted the hosts to start in a specific order. I lived tweeted it and that thread is the basis for this post. The UPS has three groups of outlets: primary group, group 1, group 2. Each group has a On Delay setting.
nut – testing shutdown and startup Read More »
Following on from my recent nut setup, this is the second in a series of three posts. The next post will deal with adjusting startup and shutdown times to be sure everything proceeds as required. I want to test the host shutdown mechanism without: unplugging the UPS from the mains powering off the UPS without
nut – testing the shutdown mechanism Read More »
I use Tarsnap for my critical data. Case in point, I use it to backup my Bacula database dump. I use Bacula to backup my hosts. The database in question keeps track of what was backed up, from what host, the file size, checksum, where that backup is now, and many other items. Losing this
Tarsnap – cleaning up old backups Read More »