Category: Linux
Sierra Wireless 595U / Sprint on Linux
July 3rd, 2007, 10 Comments
Here’s how you use a Sierra Wireless 595U USB modem to connect to wireless Internet service with Sprint: Insert the modem into the USB slot. lsusb should show: Bus 001 Device 005: ID 1199:0120 Sierra Wireless, Inc. rmmod usbserial Then: modprobe usbserial vendor=0×1199 product=0×0120 You should see /dev/ttyUSB0, ttyUSB1, and ttyUSB2 appear. See also instructions [...]
Conferences Suggestions
April 17th, 2007, 4 Comments
At work, we use Linux (and Debian, in specific) for a lot of different things: everything from our phone system (running on Asterisk) to file serving and running some proprietary applications. I’m one of the people that finds, sets up, and maintains these systems, and I write code for our in-house use as well. I [...]
And we’re off!
April 13th, 2007, 1 Comment
Yesterday afternoon, we started our information meetings with employees about our Linux on the desktop project. We’re underway on our migration. But before I talk about that, I need to back up and describe what the project is. We are converting approximately 80% of our 150 or so PC users to Linux desktops. They’re Debian [...]
Saving Power with CPU Frequency Scaling
December 7th, 2006, 16 Comments
Yesterday I wrote about the climate crisis. Today, let’s start doing something about it. Electricity, especially in the United States and China, turns out to be a pretty dirty energy source. Most of our electricity is generated using coal, which despite promises of “clean coal” to come, burns dirty. Not only does it contribute to [...]
Desktop Linux: NFS or something else?
November 12th, 2006, 12 Comments
Recently, I asked for opinions on desktop Linux. Thanks very much to those that replied. I’ve set up an old laptop as an experiment. I’m using Debian, Gnome, and Systemimager. It’s been an interesting project (especially getting SystemImager and a splash screen program to do what I want). I’d like for my desktop machines to [...]
Desktop Linux Opinions?
November 3rd, 2006, 15 Comments
I’m brainstorming about ways of setting up Linux desktops machines for people used to Window users on a LAN. It could be any size of LAN. I’d like people to be able to sit down at any Linux machine on the LAN and log in — probably use a LDAP directory for that, and NFS-mounted [...]
RedHat Gripes
July 21st, 2006, 4 Comments
Lately we are looking at groupware options, and have been looking at Scalix and Zimbra. We may need the features in the proprietary versions of these products, unfortunately. So I downloaded an evaluation copy of Scalix. They say they support RedHat and SuSE. Fine, I think, I’ll just alien the RPMs to debs and be [...]
Multipath is working
July 18th, 2006, No Comments
Yesterday, we got multipath working with our HP MSA1500cs SAN. We have a fully redundant setup with redundant controllers, fibre channel switches, and two FC controllers per host. We had been having a lot of trouble getting things to work right with active/passive controllers. We could get failover to work in some cases, but getting [...]
Hello, ext3. Goodbye, reiser4.
October 13th, 2005, No Comments
So I’ve been trying out various filesystems over the past few months, by converting a few machines to them and using them on a daily basis. I’ve found that reiser3, JFS, and XFS are all risky and actually corrupt data on crashes. JFS also has a few weird bugs that make the kernel oops, and [...]
Linux, Bluetooth and Mobile Phones
July 16th, 2005, 7 Comments
I got my first Bluetooth-enabled mobile phone this week, a Motorola v551. I’ve been playing with the Linux utilities for working with mobile phones and have assembled some links. Most of the pages out there seem focused on SMS features of a mobile, or using a mobile phone for Internet access for a Linux box. [...]
