Michael W. Lucas is working on a DNSSEC book that he's self-publishing, similar to SSH Mastery. He's making an early draft available for purchase, at a discount. You get access to the updates, so you effectively get the book for less, plus you can offer feedback before the publishing date. This is a familiar concept for software, where early purchasers get access to a 'beta' version of software for testing... It'll be interesting to see how it works for a book.
Will Backman has a new BSDTalk episode up, with a bit of Peter Salus from BSDCan 2011 and a bit of Raspberry Pi on FreeBSD. We need more fiddling-with-BSD-on-hardware stuff out there. That would be a good thing for Youtube - hint, hint.
Markus Pfeiffer reports success using Xen HVM to run DragonFly, which may be useful for any of you Xen users. He reports not being able to use more than 2 virtual CPUs, though Scott Tincman reports successfully using 4 (with qemu), so your mileage may vary. Updated: noting qemu usage as Markus pointed out in comments.
Here's an unsolicited testimonial for a BSD-based company. My employer recently bought some of the assets of another company, in another state. I showed up not sure exactly what I'd encounter, since the facility had never had anything better than out-of-state IT support via phone, and there had been very little time to plan. The facility had 3 different network gateway devices from varying manufacturers, all old, and mostly dead. The one working ancient Linksys small business gateway wasn't physically able to work the way I wanted for extending our corporate network. So, in a mild panic, I grabbed one of the defunct machines there and installed pfSense - a FreeBSD-based firewall/gateway solution, for those who aren't familiar with it. This is not unlike Michael W. Lucas's BSD Origin Story. It worked wonderfully. It was very easy to configure. I had exactly one problem: certain protocols like RDP would drop every few minutes. I bought the basic support tier for pfSense - and had a working answer immediately. Even with the support purchase, this has been cheaper and less work than purchasing the Cisco equipment my workplace normally uses.
- This is a good thing.
- This is a (description of) a bad thing. (via)
- Linux is becoming the opposite of UNIX. (via makx on EFNet #dragonflybsd)
- Found via the previous article: "It's a UNIX system. I know this."
- Arch/FreeBSD. This mixing is still weird. Don't take this stuff seriously, yet. (via)
- Gygax Magazine, a reinvention of gaming magazines that no longer exist. It'll apparently include What's New with Phil and Dixie, from the original Dragon magazine.
- What does the middle initial "B" stand for in "Benoit B. Mandlebrot"? Benoit B. Mandelbrot.
- So that's where Markov chains came from.
- The first computer image of a person, and of course it's porn. (via)
- Hey, that's my haiku!
If you've been feeling the need for reading about filesystems, Daniel Phillips has posted more notes about his Tux3 filesystem design, which can be contrasted with HAMMER. (thanks, Venkatesh Srinivas)
This has nothing directly to do with DragonFly, other than this is a result from my trip to NYCBSDCon last year... I know I have a few New York City readers. I'm possibly making a short trip to NYC soon; any advice on where to stay/visit?
Sepherosa Ziehau makes commits almost daily to DragonFly's network infrastructure, but I have a hard time quantifying it into Digest posts in part because it's often very technical. His most recent commits come with an explanation, however. He has done plenty of work to improve overall transmission speeds in DragonFly, and now he's working on 'fairness'. Fair, in this case, means ensuring that packet transmitting and receiving happen without either one monopolizing the connection. In real world terms, this translates to much more constant speeds. His recent commit details what he's doing and some numbers to prove it. Remember I said he's improved speeds? Note that in his example, he's reaching stable peaks of 981 Mbps. This is on a line that I assume theoretically maxes out at 1000.
Ok, now posting this on the correct day...
- If you are familiar with 2d/3d animation, web apps, game design or graphics programming, look at my alma mater. They're hiring teachers... I'm teaching an open source class there this spring.
- Kriegspiel, the board game. Kreigspiel, the computer game. Kreigspiel, the Avalon Hill game on my shelf, which is unfortunately not the same thing. Anyway, in the process of looking up that one game because I remembered the name, I found that one of the other games on my shelf might be available again. Silent Death is one of the the best miniatures games I've ever played. There's still some continuation of those Avalon Hill games too. (Long chain of memories set off via)
- A noble goal.
- The 19A0s, visually somewhere between the late 1980s and the year 2000, with a Pinterest board to match. (via)
- Message in a Binary Bottle, secret messages stuffed into the ROM of console games, years ago. (via)
- For Amusement Only: The Life and Death of the American Arcade. I miss these. The closest thing to me that's like these old arcades is this museum exhibit.
- Same source: Inside one of the last pinball factories in the world.
- This Thinkpad Chromebook actually gave me a 'Shut up and take my money!' gut reaction. My work laptop is a Thinkpad x220 and it's one of the best laptops I've ever used.
- 30 Years of the Apple Lisa and Apple ][e. (via) Hey that's neat I remember this oh my god I'm old.
Based on this bug report on the recently updated m4, you may need to perform some extra steps to update m4 as part of a normal upgrade:
# cd /usr/src/usr.bin/m4 # make # make install clean
If you have a DragonFly 3.3 system with DPorts, can you install xorg, then ssh -Y from another machine to there, and see if you can remotely run an X program like xterm with local display? I've done this twice on two different machines with DPorts and it won't work. xorg won't write the security info to ~/.Xauthority, with ssh or xhost or whatever. It's driving me crazy. (Yeah, slow news day.)
Peter Avalos has updated m4 for DragonFly. This will bring us a little more in sync with the other BSDs. Also, John Marino has updated flex, which is apparently 17 years old? Meaning it hasn't been updated in DragonFly ever, and then not in FreeBSD before that, for a long time. Looking at the timeline on the flex web page appears to match.
Dave Hayes asked for some "best practices" ideas for setting up a HAMMER (1) system. I replied, and the conversation turned to RAID, as these often do. If you're thinking of purchasing disk hardware in the near future, this will be useful to you.
Sepherosa Ziehau has added a generic form of support for multiple transmit queues in DragonFly. This means less contention when transmitting. It's not done; he has drivers to set up and as he said, it's "step 1 of many".
If you are a brave soul and have an IPv6-only DragonFly installation, there's now a git mirror of DragonFly that is available on IPv6.
I meant to post this a while ago; it's a few days old but still useful. John Marino gave some stats on DPorts progress, plus he and Francois Tigeot also had some tips on xorg setup. The successful build count is higher by now, and I think KDE3 is done, though I haven't tried it.
If you have a BSD Certification, and it's nearing the end of its 5-year term, the BSD Certification Group has published the guidelines for re-certification. Has it really been 5 years since the first certifications happened? Geez. I found this off of the NYCBUG mailing list, so hat tip to them.
It's a very short week this week. I was on the road for work, so I didn't see anywhere as much of the Internet as I may have liked. Count my dports writeup yesterday as part of this and it averages out to a good amount of reading.
- Favorite Linux Commands. Not all of them are Linux/bash specific. (via)
- Advanced Vim Registers. Or buffers, or clipboards, if you want to get messy with terms. (via)
- "I hate BSD so much!", he yelled at his spittle-flecked monitor.
- TOME, a roguelike. Read through the comments for discussion of many other roguelike games.
If you are on DragonFly 3.3, and you are running a kernel built after January 1st, there's a bug in the way FP context is handled when the kernel supports AVX. (January 1st is when AVX support was committed.) Matthew Dillon has committed a fix and issued a note to update for everyone.
John Marino's DPorts project, mentioned here briefly before, is interesting. I had two separate people ask me how it works, so a better explanation is in order. I've tried it out on a test machine over the past few weeks. Background: Dports is an effort to use FreeBSD's ports system as a base for DragonFly, and the pkg tool as a way to manage binary packages built from DPorts. This is complicated, so I'll explain each part in order.
- FreeBSD ports are a FreeBSD-specific collection of software installation files that automate building 3rd-party software on FreeBSD. You've probably already heard of them. (Note there's no mention of DragonFly.)
- DPorts is a collection of files that map to existing FreeBSD ports, and contain any changes necessary to make that port also build on DragonFly. Many of those programs build without changes on DragonFly. DPorts builds from source.
- pkg is used for package management, and is usable on FreeBSD and on DragonFly. The binary packages produced from building with DPorts can be installed from remote locations and managed separately using pkg, so that software upgrades and installation can be performed with binaries only. (It's much faster that way.)
- DragonFly 3.3 or later, though 3.3 is the most recent right now.
- You need to rename /usr/pkg so that your existing pkgsrc binary programs don't get accidentally used while working with DPorts, causing confusion. If anything goes wrong with DPorts when you are installing it and you want to go back, remove all the DPorts packages and rename /usr/pkg back to normal.
cd /usr make dports-create-shallowIf you've already renamed your /usr/pkg directory, git won't be in your path any more. You can instead download a tarball and unpack it, which also happens to be possible automatically via that same Makefile.
cd /usr make dports-downloadDownloading via git is fastest, so if you do need to use the tarball via make dports-download, build devel/git, delete /usr/dports, and then pull it again with make dports-create-shallow. This all comes from John Marino's Github site for DPorts. Managing DPorts DPorts doesn't use pkg_info, pkg_add, and the other tools traditionally seen on DragonFly for pkgsrc. Instead, package management is done with pkg. Use pkg info, pkg install, pkg remove, and pkg update to list, install, delete, and upgrade various packages on your system. Packages built from source or downloaded as prebuilt binaries are managed the same way, using these tools. See some of the other writing about pkg for FreeBSD for details on how it works. Since DPorts doesn't update a package until it gets a successful build, and installations are of successfully built binary packages, upgrades with prebuilt packages should always succeed. Since they're binary, they should be fast. There's a lot of 'shoulds' in this sentence, but these are reasonable suppositions. What about pkgsrc? Pkgsrc and DPorts shouldn't be used at the same time, since one system's packages may be at different versions but still get picked up during building for the other system. That's about it for restrictions. I intend to try building an experimental release of DragonFly with DPorts, to see if all the right packages can be added, but no guarantees. DPorts is brand new and does not yet have a repository for downloading packages, so the normal caveats apply; don't install it on a mission-critical machine, and be ready to deal with any surprises from using it if you do try it out. What packages are available? Browsing the Github repo will show you all listed packages. More complex packages like xorg, openjdk7, and libreoffice install, as does xfce. Parts of KDE 3 and KDE 4 are in there. (I haven't tried either.) I'm not sure about Gnome, but I don't think anyone ever is. There's no vim, but there is emacs. That's just what I see at this exact minute. It changes daily as more packages are built. Changes from DragonFly builds are sometimes relevant to the original FreeBSD port, so there's benefits for everyone here. What next? Try it now if it has all the packages you need, or wait for a binary repository to be created to speed things up. Remember, this is a new project, so a willingness to deal with problems and contribute to fixes is necessary.