With Apple's abandonment of PPC as of Snow Leopard, I began wondering what to do with the old PowerMac. It's annoying that so (comparatively) recent a piece of equipment should be given up by its manufacturer, but that's a rant for another day. Yes, we can still run Leopard until it goes out of support, … Continue reading ppc Linux on the PowerMac G5
Category: Linux
Posts discussing Linux and related technology.
I've been doing a lot of mucking around with KVM with libvirt (I keep promising an update here, don't I). In my desktop virtualisation requirements I had a need for presenting VLAN traffic to guests: simple enough, and I've done it before. You can do what I usually do, and configure all your VLANs against … Continue reading Network virtualisation
For a long time I've been managing virtual e-mail addresses (the ones you create when you sign up to a web service, so that you know where your spam is originating) using Postfix's LDAP alias capability. At the time I was still putting every bit of configuration I could into LDAP--particularly if it was user-id … Continue reading LDAP groups in Postfix
I've been struggling with setting up chan_mobile on my Asterisk system. For those fortunate enough to actually get it working, chan_mobile provides an interface for Asterisk to treat a mobile phone like a PSTN or VoIP trunk--when someone calls your mobile phone it can ring your desk phone or softphone, or you can use your … Continue reading Asterisk chan_mobile fail
I'm having a bit of an infrastructure redesign here at the Crossed Wires campus. Each time I have an outage (the last one was caused by a power failure) I learn a little more about the holes in my current setup and what I can do better. I'm implementing a router box on an old … Continue reading LDAP-backed DNS and DHCP…?
I recently started having trouble with APT transactions on my Kubuntu desktop. "apt-get update" would fail for some source entries with the error "The HTTP server sent an invalid reply header". I thought it was something specific to (K)Ubuntu, but when I had the exact problem on my NSLU2 running Debian I figured the problem … Continue reading Trouble with apt-get and Squid
Observant readers will notice that they are no longer able to respond to posts. The blog-spammers have won the battle but, as they say in the classics, they will not win the war…I've turned off the comment capability, until I can get something in place to bring the rubbish under control (a recent update to … Continue reading Comments and Downtime
S went to print some photos the other day, and what was supposed to have been a simple exercise turned out to be a very frustrating one for both of us. I was utterly amazed to discover that even on the eve of 2009 there are web sites that think the world is only viewed … Continue reading Photo printing pain
Newcomers to UNIX-like operating systems are often confused by the difference between the shell operations pipe and redirection. The difference is easily explained with an example, in the context of web development. The shell command echo "st=1" | ./lifeswork.pl shows how a pipe is used to supply command line input to a script usually invoked … Continue reading The difference between pipe and redirection
I was about to post about how pleased I was with Synergy in helping me tidy up my desktop clutter (by removing a keyboard and mouse from the surface). Ironically, I'm instead posting about a problem with the configuration that will cause me to throw it out and look for something else. Why the title? … Continue reading Security blows
Crossed Wires 