DataPipe (who use FreeBSD) was one of the most reliable hosting company sites in August, and only narrowly missed out on the same achievement in September. DataPipe has shown some good results over the past six months, notching up five top-ten appearances, including three first places.
Kuvaton has a picture of operating systems, comparing them with cars. Or should I say, a picture of cars compared with operating systems?
FreeBSD: Like Linux but takes more cargo on the expense of being less customable.
I like the VMS one. What do you think of these comparisons? OK, fair or ridiculous?
This picture reminds me of the OS user mugshots that I posted a while back.
The 6th issue of BSD Mag is now available. The topic for this month is BSD Security & OpenBSD 4.5.
This is the table of contents of the latest issue:
OpenBSD 4.5 is the latest version of OpenBSD released in May, 2009. This article will walk you through its installation in great details. For a quick start boot the attached DVD with OpenBSD 4.5.
Postgresql, shared memory and BSD
This series of articles will compare a basic installation of Postgresql on various flavors of BSD, and compare the performance between them given similar shared memory settings.
Triple booting Windows 7, Ubuntu 9.04 and PC-BSD 7.1
In this article we will give a step-by-step guide to installing three different operating systems on the same hard drive.
BuildaSearch a FreeBSD Web Service
BuildaSearch is a web service which allows users to build a custom search engine or site search in less than five minutes. No coding skills are necessary when building a custom search. Users can customize their colors, backgrounds, logos, and search results.
Web Servers for Embedded NetBSD
Web-based user interfaces have become ubiquitous for all sorts of electronic gear these days. If you are building a network-capable device, chances are you will want to add a web server to your device’s software, as well – it’s generally cheaper than a hardware interface and far easier to change or update.
Out-of-the-box sshfs on NetBSD 5.0
Sshfs makes it possible to mount a remote directory tree onto the local machine. Only ssh access is required for this.
FreeBSD Security Event Auditing
Security is increasingly a hot topic in systems administration. Vulnerable systems get patches, firewalls get set up and password policies are enforced. But in the end, all these measures cannot eliminate the risk of a system break-in. They can only reduce it.
Securing OpenSSH server
OpenSSH is free implementation of SSH suite. Many of us use it on a daily basis and got so used to it we couldn’t imagine our lives without it.
Staying Secure using PC-BSD
“Help! Pop-ups are destroying my computer!” I cannot count how many times I have heard those words come from my brother’s mouth.
Stop Hackers With Protection Script
I suppose you have a border server that is freely accessible from the internet or you just want to have a secure machine. Whichever the case is, I will tell you my story.
OpenBSD on the Sharp Zaurus
If you look at the OpenBSD Platforms page ( http://openbsd.org/plat.html ) you’ll see Zaurus down at the bottom. Is it there just so that the OpenBSD team can safely say that they support a multitude of platforms, from Alpha to Zaurus?
Questions and Answer Session of the BSD Certification Group Community
Recently, the BSD Certification Group (BSDCG) asked via their mailing lists for questions regarding the BSDCG or the BSDA exam, offering to answer them in this issue of BSD Mag.
Interview with Albert Whale
My name is Albert Whale, the President of ABS Computer Technology. I am a resident of Pittsburgh, PA, and I work with my company on Security and Consulting opportunities on an international basis.
Interview with Matt Juszczak
Recently I had the opportunity to sit down with Matt Juszczak creator of BSDJobs.net and ask him some questions about the project. I would like to thank Matt for taking the time out of his busy schedule to talk with me about the project. The following is a synopsis of that Q&A session.
- How freebsd finds oil (audio)
- FreeBSD in a Complex Environment (pdf, audio)
- ISC and BSD (audio)
- FreeBSD and Isilon (slides,audio)
- long distance wifi (slides)
- wireless mesh networks (slides) ;complexity attacks on ipfw (pdf)
- network event kit (paper)
- compiling a v4l DVB driver for freebsd (paper)
- pfsense; Embedded FreeBSD for industrial applications (slides)
- profiling and debugging the freebsd kernel (slides, paper)
- freebsd kernel protection against SMTP DDoS (paper, audio)
- SMB/SMB2 (slides, audio)
- porting HPC tools to freebsd (slides, audio)
- BSD licensed PGP (paper)
- mfsbsd (pdf); Google SoC (slides)
Next year, the 9th edition of EuroBSDCon will be held in Karlsruhe, Germany (October 2010). For news, updates and call for papers, check out http://2010.eurobsdcon.org/
Download ports simultaneously with multiple connections
By default, ports uses 1 connection to download and thus unbearably slow when a server rate limit the connection. Alternatively, we can tell ports to use external utility in order to open multiple connections and download simultaneously.
Axel tries to accelerate HTTP/FTP downloading process by using multiple connections for one file. It can use multiple mirrors for a download. Axel has no dependencies and is lightweight, so it might be useful as a wget clone on byte-critical systems.
György Vilmos has put together a post evaluating performance of PostgreSQL’s last five releases on a midrange x86 server:
“…’The “Dunnington’ code named CPU’s architecture and the number of CPUs are both an important factor for the OS and the database, because in this CPU a lot of cores are fighting for the spare bandwidth of the FSB, through which the slow memory and peripheral devices are reached. The multi level cache hierarchy and the slow FSB makes a hard job for the OS scheduler and memory allocator, which need to keep the CPUs busy by feeding them the most data from the caches.
This is a hard jobs and FreeBSD isn’t yet at the end of the road (to be honest, it just stepped on it), but here it’s not that important, because we were curious about what database version produce how much performance. Sadly there weren’t too much time and resources for tuning the OS and the databases.
FreeBSD was chosen -along the fact that I like it- because from its ports it’s easy to install various PostgreSQL (and MySQL) versions. The test itself was made with sysbench 0.4.12, and it’S OLTP benchmark on a 1 million row database, which of course fit into the machine’s RAM.
The data was on two 15kRPM SAS HDDs (RAID1), which is far from a heavy loaded database’s storage background, but approximately shows a typical web server environment’s characteristics, where you have to serve from the built in disks….”
He concludes that,
“I think it’s safe to say that if we have known PostgreSQL as a slow beast, it’s time to re-think (or measure) that, because it has gained quite much performance and scalability in the last three years. Not to speak about its features.”
Thanks, György, for letting me know about your post.
The alpha version number 2 of PC-BSD 8.0 is now ready for testing.
Notable changes in this release:
- FreeBSD 8.0-RC1
- Improvements to base system
- Using /usr/local LOCALBASE, allows users to easily modify their base desktop in the usual FreeBSD-ish way
- Port-Console tool, provides users a way to build / run ports in a jailed environment, without fear of destroying their working desktop setup
- Many bugfixes to the install / live image, fixed lots of hal/dbus issues with xorg and fixed many bugs running in LIVE mode from DVD.
- NVIDIA drivers for 32bit now included (Nvidia is working on the 64bit drivers, and we’ll include those when they are released)
- Misc other bugfixes, etc
Both the 32 and 64bit can be download ftp://ftp.pcbsd.org/pub/alpha-iso/
Please note, this is an ALPHA version; expect BUGS bugs and problems. We are still working on the new installer, and hope to have that impelemented in one of the next alphas.
PBIs are not yet being built for 8.0, but we are getting ready to do so, now that the release of FreeBSD 8.0 is getting closer.
If you come across any problems please drop us a note on the testing mailinglist
And a patch set was committed by the people who handle porting ZFS to FreeBSD that they felt makes ZFS production-ready.