https://kb.unixservertech.com/ 2026-04-17T14:20:30+00:00 https://kb.unixservertech.com/ https://kb.unixservertech.com/_media/wiki/dokuwiki.svg text/html 2026-04-15T00:17:27+00:00 rodolico (rodolico@undisclosed.example.com) https://kb.unixservertech.com/unix/virtualization/virtlib/quickreference?rev=1776212247&do=diff virt-lib Quick Reference virtlib stores its configuration for each domain (virtual) in /etc/libvirt/qemu*.xml. You should not manually modify anything in this directory, but you can safely do any read-only operation. To edit/export/whatever, the virsh text/html 2026-04-14T23:29:28+00:00 rodolico (rodolico@undisclosed.example.com) https://kb.unixservertech.com/unix/freebsd/system_builds/nfsserver?rev=1776209368&do=diff Build NFS Server This is a total rewrite since FreeBSD and ZFS have the ability to export nfs directly. You can always not use the sharenfs function in zfs (ie, sharenfs=off) and use the standard way of exporting. ZFS running nfs actually is not as pretty as the old way, but it is very efficient for maintenance. text/html 2026-04-14T21:15:13+00:00 rodolico (rodolico@undisclosed.example.com) https://kb.unixservertech.com/unix/virtualization/kvm/server?rev=1776201313&do=diff libvirt installation (virsh) This is a work in progress, 20201015 Location of Files Just a note, the files created by virsh and virt-install are stored in /etc/libvirt/qemu/. However, they should not be hand-edited; only edit with virsh. Install and Configure text/html 2026-04-14T01:50:34+00:00 rodolico (rodolico@undisclosed.example.com) https://kb.unixservertech.com/quickreference/mdadm?rev=1776131434&do=diff mdadm Quick Reference Common mdadm commands I found a really great, if somewhat dated, article at . This is mainly a copy of that article, updated for what I do under Debian. Query Array or Member mdadm --examine /dev/sda # get RAID information on sda if it is an array member mdadm --query /dev/md0 # get information on a RAID array, or member if this is a disk mdadm --detail /dev/md0 # gives more information about array, including information about each individual member text/html 2026-03-06T05:27:22+00:00 rodolico (rodolico@undisclosed.example.com) https://kb.unixservertech.com/hardware/smartphones/leavinggoogle?rev=1772774842&do=diff Leaving Google I’ve been an unapologetic Android fanboy ever since Google took Linux and turned it into something that could power smartphones. Honestly, I never thought I’d see the day when I’d consider leaving Android—or Google—even as they slowly chipped away at the privacy they once promised under the motto “Do No Evil.” text/html 2026-03-06T05:21:21+00:00 rodolico (rodolico@undisclosed.example.com) https://kb.unixservertech.com/hardware/smartphones/start?rev=1772774481&do=diff Smartphones Just covering things I found about hardware and the software that runs on them. text/html 2026-02-18T06:32:17+00:00 rodolico (rodolico@undisclosed.example.com) https://kb.unixservertech.com/software/zoneminder/start?rev=1771396337&do=diff ZoneMinder ZoneMinder is a powerful, open-source video surveillance platform for home and business environments. It supports a wide range of camera types—including IP, USB, and analog—and offers features such as motion detection, event recording, live viewing, and remote access via web or mobile clients. text/html 2026-02-18T06:05:51+00:00 rodolico (rodolico@undisclosed.example.com) https://kb.unixservertech.com/software/zoneminder/freebsd?rev=1771394751&do=diff ZoneMinder on FreeBSD 15: Technical Install Guide This guide covers installing ZoneMinder on FreeBSD 15 with: * A remote MySQL/MariaDB server (dbserver) * NFS storage on a ZFS dataset (nfsserver) Assumptions: - You have root or sudo access on all systems - Substitute your preferred editor for text/html 2026-02-14T17:57:37+00:00 rodolico (rodolico@undisclosed.example.com) https://kb.unixservertech.com/unix/freebsd/start?rev=1771091857&do=diff FreeBSD Unix BSD Unix is one of the oldest still in existence, dating from 1977. As such, it is rock solid with decades of bug fixes, enhancements and tweaks. See <https://en.wikipedia.org/wiki/Berkeley_Software_Distribution> if you want historical information on this fantastically stable operating system. In the early 1990's, multiple BSD descendants were made Open Source and manage many of the worlds most stable servers. See text/html 2026-02-14T17:54:09+00:00 rodolico (rodolico@undisclosed.example.com) https://kb.unixservertech.com/unix/freebsd/bootscripts?rev=1771091649&do=diff Boot Time Scripts on FreeBSD Sometimes you need to run a script at a specific point during the FreeBSD boot process. For example: * Synchronizing the system clock: If your system clock drifts too far out of sync, ntpd may not be able to correct it. Running text/html 2026-02-07T04:05:29+00:00 rodolico (rodolico@undisclosed.example.com) https://kb.unixservertech.com/software/mysql/withrecursive?rev=1770437129&do=diff The WITH RECURSIVE syntax Using FrontAccounting, I needed a way to project recurring revenue for the next 12 months. I had a combination of a Perl script and a MySQL query to do this, but I wanted a single query that I could plug into my report tool. Warnings Just like it says, this is recursion, generally used to retrieve data from a hierarchical configuration. text/html 2026-02-06T06:37:26+00:00 rodolico (rodolico@undisclosed.example.com) https://kb.unixservertech.com/unix/freebsd/system_builds/airgap/sneakernet_implementation?rev=1770359846&do=diff Sneakernet: Production Air Gap Implementation Project: Automated ZFS replication via encrypted removable media Environment: FreeBSD with ZFS and GELI encryption Repository: <http://svn.dailydata.net/svn/zfs_utils/trunk> License: BSD 2-Clause (FreeBSD License) Overview The sneakernet project provides a complete automated solution for air gap server replication using ZFS datasets and encrypted transport media. This implementation was developed for a production environment requiring monthly o… text/html 2026-02-05T05:46:51+00:00 rodolico (rodolico@undisclosed.example.com) https://kb.unixservertech.com/unix/freebsd/forlinuxadmins/start?rev=1770270411&do=diff Introduction to FreeBSD for Linux Administrators Ok, I have been a Debian Linux Sysadmin for decades. Now, moving to FreeBSD. These notes are what I have discovered in my recent treks. * There is an excellent handbook for FreeBSD located at <https://www.freebsd.org/doc/handbook/>. Probably the best documentation I have seen in a long time. Use it. Read it. Download it and store it where you can read it even when you are offline. text/html 2026-02-04T21:39:14+00:00 rodolico (rodolico@undisclosed.example.com) https://kb.unixservertech.com/unix/freebsd/forlinuxadmins/branches?rev=1770241154&do=diff FreeBSD Branches FreeBSD has several channels, or branches, allowing users to customize their installations based on their personal requirements. The top three are Release, Stable and Current. Bottom line is, use Release for stability, Stable for new features and Current for true bleeding edge. I remember it by text/html 2025-11-17T07:13:49+00:00 rodolico (rodolico@undisclosed.example.com) https://kb.unixservertech.com/?image=software%3Arust%3A9.networkunlock.png&ns=software%3Arust&rev=1763363629&tab_details=history&media_do=diff&do=media <img src="https://kb.unixservertech.com/_media/software/rust/9.networkunlock.png?w=500&amp;h=500&amp;tok=ed40ad" alt="9.networkunlock.png" loading="lazy" width="500" height="500" /> text/html 2025-11-17T07:03:12+00:00 rodolico (rodolico@undisclosed.example.com) https://kb.unixservertech.com/?image=software%3Arust%3Ad.configured.png&ns=software%3Arust&rev=1763362992&tab_details=history&media_do=diff&do=media <img src="https://kb.unixservertech.com/_media/software/rust/d.configured.png?w=500&amp;h=500&amp;tok=47fbc8" alt="d.configured.png" loading="lazy" width="500" height="500" /> text/html 2025-11-17T07:03:12+00:00 rodolico (rodolico@undisclosed.example.com) https://kb.unixservertech.com/?image=software%3Arust%3Ac.id_relay_server.png&ns=software%3Arust&rev=1763362992&tab_details=history&media_do=diff&do=media <img src="https://kb.unixservertech.com/_media/software/rust/c.id_relay_server.png?w=500&amp;h=500&amp;tok=085bdb" alt="c.id_relay_server.png" loading="lazy" width="500" height="500" /> text/html 2025-11-17T07:03:12+00:00 rodolico (rodolico@undisclosed.example.com) https://kb.unixservertech.com/?image=software%3Arust%3Ab.networksettings.png&ns=software%3Arust&rev=1763362992&tab_details=history&media_do=diff&do=media <img src="https://kb.unixservertech.com/_media/software/rust/b.networksettings.png?w=500&amp;h=500&amp;tok=02c00a" alt="b.networksettings.png" loading="lazy" width="500" height="500" /> text/html 2025-11-17T07:03:12+00:00 rodolico (rodolico@undisclosed.example.com) https://kb.unixservertech.com/?image=software%3Arust%3Aa.settings.png&ns=software%3Arust&rev=1763362992&tab_details=history&media_do=diff&do=media <img src="https://kb.unixservertech.com/_media/software/rust/a.settings.png?w=500&amp;h=500&amp;tok=6b77d2" alt="a.settings.png" loading="lazy" width="500" height="500" /> text/html 2025-11-17T06:50:17+00:00 rodolico (rodolico@undisclosed.example.com) https://kb.unixservertech.com/?image=software%3Arust%3A8.mainscreen.png&ns=software%3Arust&rev=1763362217&tab_details=history&media_do=diff&do=media <img src="https://kb.unixservertech.com/_media/software/rust/8.mainscreen.png?w=500&amp;h=500&amp;tok=60e681" alt="8.mainscreen.png" loading="lazy" width="500" height="500" />