Technical notes from Linux and FreeBSD infrastructure work
Practical guides, troubleshooting notes, and operational references from production infrastructure work with Linux, FreeBSD, networking, web servers, databases, backups, monitoring, and security.
Practical notes from A-Team Systems' work with Linux, FreeBSD, networking, web servers, databases, backups, performance, monitoring, and production infrastructure operations.
All Tech Blog Articles
Page 4 of 6, ordered newest to oldest.
NginX “service nginx upgrade” / kill SIGUSR2 results in shutdown() failed (54: Connection reset by peer)
Huge thanks to Ganbold Tsagaankhuu who finally got to the bottom of this issue. NginX is a great web server, and is built from the ground up for high...
- FreeBSD
- NginX
- OpenSSL
ZTE Falcon Z-917 via USB with pfSense and FreeBSD
One of the things on our list has been to setup a proper dedicated cellular backup system setup here at the office. This was harder than it seemed due to...
- cellular
- FreeBSD
- Internet
- pfSense
- T-Mobile
- UNIX
FreeBSD Hangs on “Trying to mount root from zfs:zroot”
There are many reasons this can happen, but this one I believe is unique in terms of searching the internet for the error. We’d see a newly imaged (or...
- booting
- FreeBSD
- ZFS
FreeBSD / pfSense on a Zotac ZBox: link state down and ‘re0: watchdog timeout’ errors
Recently we purchased a Zotac ZBOX-CI321NANO to replace our existing pfSense PC which was in a much larger case. There are a few variations but ours has...
- firewall
- FreeBSD
- networking
- pfSense
- systems administration
Poudriere “Error: Invalid port origin ‘/usr/local/sbin/pkg’ not found”
This was quite the random error I ran across this week and could not find anything similar or a solution. After years of faithfully building our FreeBSD...
- FreeBSD
- poudriere
Logentries (logentries.com) Under FreeBSD
Logentries is a SaaS service which lets you stream logs (and lots of other things) from multiple locations and servers for review and processing on their...
- FreeBSD
- Logentries
- logs
- monitoring
- rc.d
MySQL RBR (Row Based Replication) /w GTID halts with Error_code: 1032; handler error HA_ERR_END_OF_FILE
I want to start off by saying that there are a lot of causes for the error in the title of this article, most of which are easy to fix conditions...
- MySQL
- Replication
FreeBSD Hardware RAID vs. GMIRROR vs. ZFS
The ultimate storage shootout! With years of building and testing servers in various configurations we have always suspected hardware RAID was not all...
- FreeBSD
- gmirror
- Performance
- RAID
- SSD
- UFS
- UNIX
- ZFS
NginX Add Trailing Slash With 301 Redirect Without If Statements
We had a situation where a client using Joomla wanted to have trailing slashes added to URLs, not just processed behind the scenes as the ‘correct’...
- Joomla
- NginX
ImageMagick Under PHP-FPM and Chroot
We’re a big fan of PHP-FPM and chrooting, all of our deployments use this along with per-site UIDs to ensure complete isolation and resource control...
- ImageMagick
- PHP
- PHP-FPM
FreeBSD Compatible USB 3.0 PCIe Cards
While looking to add USB 3.0 ports to two servers which had no motherboard ports we tested out two different cards: Syba USB 3.0 PCIe x1 2.0 Card –...
- FreeBSD
- hardware
- USB 3.0
When To Switch From Cloud Servers to Dedicated Servers
Cloud servers provide a turn key solution to a lot of problems, however they can quickly become an expensive crutch that hides problems rather than...
- A-Team Cluster
- cloud servers
- dedicated servers
- Performance
- pricing
- VMware
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