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Category Archives: Unix and Linux

Linux/Unix based computers, including NAS servers, VPN servers, cron-running machines, and desktop workstations.

Making PlexPass Work


I’ve been using Plex for quite a while. You have to jump through some hoops (it only supports MKV files, not DVD or Blu-Ray directory structures), but it does in the end work quite well with my Fire TV stick and with the Google Nexus Player (Android TV). I recently got a PlexPass subscription. This […]

Setting up an FTP-only user on FreeBSD


I recently bought an IP camera. (To be honest, I went on a bit of a shopping spree for IP cameras.) These cameras support FTP as a storage mechanism for video and snapshots (motion-detecting for example). As a result, I wanted to set up an FTP user on my FreeBSD machine. Iniitally, I tried creating […]

Crucial m550 128GB as ZIL/SLOG (the ZIL really does limit your performance)


I got my hands on an m550 128GB drive (for around $75 with the recent pre-Thanksgiving/pre-Christmas discounts). Here are some comparisons between my old ZIL (the m500 128GB) and the new one: ZIL Throughput (sustained) MB/s none 195.6 m500 128GB 124.0 m550 128GB 265.9 Here are some snippets of zpool isotat output: No ZIL


Crucial m550 128GB SSD benchmark


Fresh out of the box:

Curiously, there are no firmware updates for this drive (nor the m500). Guess Crucial got it right the first time. Be the first to like. Like Unlike

12V dc adapter efficiency measurement


So, you remember that pfSense build that I talked about before? Well, it was drawing around 25 W. I know, right? Unacceptable! So, one of the things I tried to figure out is what the main power draw is. The PicoPSU accepts a 12V input. Could the ac/dc adapter be hurting my efficiency? The adapter […]

I get my wish (a pfSense router)


Remember back when I was considering a pfSense build? Well, it turns out it was a lot easier than I though. I realized I could buy (for about $7) an Intel dual-PCI Ethernet card (HP NC7170), and the $6 riser card would allow me to fit it into my case. (I had to do a […]

Arch Linux ARM on a Pogoplug Series 4


I followed the directions here: Pogoplug Series 4 | Arch Linux ARM. It took only about 15 minutes, and the iperf scores are outstanding:

The install was on an 2.5″ SSD disk I had laying around, which explains the fast install. But that’s the point–the pogoplug 4 has a SATA port, so I can […]

Making duplicity and ncftpput play nice with vsftpd FTP daemon


I’ve been setting up yet another remote backup lately (see associated problem here). For this purpose (on Unix), the duplicity solution looks ideal. However, I’ve tried it on a couple of lightweight FTP servers (a TL-WDR3600 and a Raspberry Pi) and neither of them work. I keep getting a “Permission Denied” message. I did quite […]

Keeping FreeBSD TCP performance in the midst of a highly-buffered connection


I was perplexed recently, when I began an rsync job to a raspberry pi server. I know exactly what limits the bandwidth of this connection–it is the CPU (or network) on the Raspberry Pi, which cannot accept data fast enough. So, even though my server is on a 1 Gbit/s interface, and the Raspberry Pi […]

worrbase – CrashPlan on FreeBSD 9.0, A HOWTO


I’m blogging this as a reminder to myself on what to do. I found it years ago, but that link doesn’t seem to exist anymore. Anyway, this is a good write-up on FreeBSD 9.0: worrbase – CrashPlan on FreeBSD 9.0, A HOWTO. The only difference betwen this and what I did was that I use […]