OK, I know there are probably quite a few looking at this thinking…. “Hello where has he been?” when I’m talking about playing around with software raid under ubuntu linux, but…. in spite of all I’ve done supporting desktop systems and even small business servers I’ve never had an opportunity to setup a raid array. First it was because “you don’t want to do software raid” and I didn’t have a card to support hardware raid, then when I first was seeing people raving about how good linux software raid is, I didn’t have two free drives of equal size to work with. Well, the other day in working towards a storage system for a client I’ve got an ubuntu system (dapper 6.06.1) setup with software raid and wanted to poke and prod and test some things out before it goes into a useful role.
Category: Linux Software
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Freenx on Ubuntu (Dapper Drake)
NX server and client is a GREAT remote X approach that can tunnel over fairly narrow links well and does phenomenally well over a LAN. I frequently use NX in place of VNC when working with Linux based systems because the performance seems much better and the client has a nice way to choose from preset sessions. (You can also do individual applications, etc…) One of the benefits over X tunneling is the compression…. Anyway, I’ve gone through setting this up several times on various ubuntu 6.06 installs and thought I’d go ahead and document this on the web page so I didn’t have to keep hunting links each time….
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Software raid under linux (Ubuntu 6.06 Dapper Drake)
First, I should disclaim that this is going to be a brain dump of the resources and experience of a quick setup of Ubuntu 6.06 on a software raid based storage system. This may be less than ideal, but is doable and seems relatively solid as a system. First off, what is RAID (redundant array of independant/(*inexpensive) disks) So, several cheap hard drives put together in an “interesting” way. Now, increasing storage size isn’t something I’m too interested in, after all there are myriad other ways of expanding storage in a linux system (not to mention huge drives getting cheaper by the day.) My goal here is redundancy, I want to be able to lose a drive and still have the data, so RAID1 is what I’m setting up. We won’t get sidetracked into the other types.
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Mandriva 2007 download now available
Several days ago there were announcements of the release of Mandriva 2007, only thing was, the download wasn’t available yet. Well, today the download appears available. I haven’t looked to see what differences there are between the free and the powerpack download (powerpack can be downloaded by club members as well.)
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Firefox and Thunderbird updates
As I’ve just posted to the security-update-notice category, Firefox and Thunderbird both have been released in 1.5.0.7 version…. the release fixes a number of known security issues and you should upgrade as soon as possible. Details on the issues at incidents.org Also, you can visit mozilla.com for downloads
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Microsoft Update day for September…. AND Flash… AND Apple
Yesterday, of course, Microsoft released it’s monthly patches. I found the Windows update site to be painfully slow (and in some cases unresponsive.) It wasn’t quite a huge update day by recent standards, but here’s the summary…. Incidents.org has a nice chart showing the two re-released patches (one is actually re-re-released…) They are MS06-040 (server service patch – critical) and MS06-042 (IE 6 patch). Both of those vulnerabilities addressed are well known and could be actively exploited. The “first release” updates from this month affect Microsoft Queue System MS06-052 which is the most important of the releases….
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Firefox code under the microscope
So, the stories are out of the analysis of the code for Mozilla Firefox. It seems there were a large number of potential flaws found (71 potential security vulnerabilities) according to the article. This was done using an automated tool and many say, that in order to evaluate the true severity of the flaws, you have to be familiar with the code. Some, I’m sure will pounce on this with the “I thought open source software was supposed to be more secure…. I’m going back…” but it’s time to stop and think about things a moment. Open Source software…. anyone can access the source, anyone can analyze it for problems, anyone can run an automated tool to test it…..
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Multihead PC
More than once I’ve wished for a second (or third) set of keyboard/mouse/video for my main desktop. Linux is a true multiuser operating system which means that it’s capable of hosting multiple graphical logins at the same time. For MOST things, a single, modern CPU is more than adequate to deal with this (memory is usually the limitation, but 1 GB ought to be enough.) So, I think all of this was prompted by a blurb about hubster which looks like it’s just a VGA-usb adapter. The company that makes it though bill it as a thin client of sorts. So, they’re essentially thinking thin-client over usb as opposed to thin-client over ethernet…
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Audio on Linux weekend…
For most people here in the US, this last weekend was known as Labor Day weekend, for me though… it was more like Audio on Linux weekend. I’ve mentioned before that I use my computer for most EVERYTHING and that’s not far off…. I have watched movies on the PC, I’ve recorded multitrack audio, captured tv shows to disc, and of course, work…. database server, digitial photos/editing, test web sites, word documents, test various hardware, etc. etc. test software, etc…. vmware…. oh the list could keep going and going and going…. Well, sometimes it seems that optimizing the machine for one thing comes at the expense of another. Since I had to swap out the system board on the main machine (massively failing probably due to overheating…. multiple pci slots had failed, etc….) I hadn’t had a chance to see why some things didn’t work the way I used to….