http://www.dreness.com/blog dre's technical blog Fri, 04 Jul 2008 21:17:56 +0000 http://backend.userland.com/rss092 en The following is an IRC transcript taken from #afp548, irc.freenode.net. It chronicles the troubleshooting process of a fairly well-hidden edge case of Kerberos configuration in Mac OS X Server. pastebin.ca was used to relay larger hunks of textual information; I've made local copies of the results since the pastebin pages expire ... http://www.dreness.com/blog/archives/43 I recently had an excuse to dig into Leopard's local KDC (LKDC), and have created a page on my wiki to hold the results. Some excerpts below: The Local KDC (LKDC) is a Kerberos implementation that extends "single sign-on" capabilities into ad-hoc networks. The LKDC supports the AFP, CIFS, and VNC ... http://www.dreness.com/blog/archives/42 The purpose of this script is to add a bit of granularity and intelligence to the energy saver settings in Mac OS X for disk sleep. Problem: I want to let my disks sleep, but I HATE having to wait for a spinup while I'm working. Solution: Allow the disks to spin ... http://www.dreness.com/blog/archives/40 motivation I finally found a reason to write some Python. Being something of a monitoring and data junkie, I've had a fair amount of experience with snmp, data mining scripts, etc. After writing this post to the server list, I figured I'd make some templates for snmp that published interesting pieces ... http://www.dreness.com/blog/archives/38 In wrote the following as part of my response to this.#!/usr/bin/perl -w use strict; # Place the first three octets here. my $AddressPrefix = "10.0.1"; # Define the range of numbers, inclusive. my $range = "2 .. 10"; # Your fqdn suffix here, e.g. "foo.com" or "k12.fl.us.gov" my $tld = "937"; # Need a backwards representation for PTR ... http://www.dreness.com/blog/archives/37 Link to google-soap I was helping my brother with a script called incith-google used by one of his IRC bots. It acts as a bridge between IRC and google, allowing IRC users to perform queries against google from the comfort of their IRC client. The script performs the search on the ... http://www.dreness.com/blog/archives/36 Download. {1} andre@dude [~] % airport -h Program Options: -h print this help -d output in comma delimited format ... http://www.dreness.com/blog/archives/32 /usr/bin/split and /bin/cat, that is. Why is this useful information? Let's imagine a wonderful world in which your web host gives you oodles of bandwidth and disk quota, and then one day secretly enacts a policy that disallows access to files over a certain (largish) size. Say, something like: [Tue Jan ... http://www.dreness.com/blog/archives/29 Dealing with CPAN has always felt a little weird. Today I found a nice shortcut for getting perl modules installed in a home directory, which is really useful for when you don't have admin on the box, or if you simply prefer to keep your custom perl stuff all cinched ... http://www.dreness.com/blog/archives/28 Mac OS X Server, as of Tiger, has a spiffy little UI in the Server Admin tool for creating SSL certificate requests, importing certs, or creating self-signed certs. It's pretty easy to make it all work for http or LDAP using the GUI tools. There is also the command-line 'serveradmin' tool, ... http://www.dreness.com/blog/archives/27 I typically keep all my digital media on either my desktop at home or my server, but I like to watch it on the laptop while reclining in my papasan chair, or perhaps just kicked back in bed. The problem is that certain files will stutter occasionally during playback, even ... http://www.dreness.com/blog/archives/26 14:57 < sky> debian forked firefox? haha 15:00 -!- PowerUser [i=hollandp@nat/apple/x-c57695efe759d747] has quit ["Fly the white flag of war!"] 15:21 < dre^> lol, why? 15:24 < johnny-o> the inability to modify the artwork, if you can actually ... http://www.dreness.com/blog/archives/24 {10} andre@werk [~] % mount | grep /Volumes/andre afp_006Af01nOUmc001Eic06SdO0-1.2c0000ae on /Volumes/andre (nodev, nosuid, mounted by andre) Huh? how helpful is that! How can I tell what server it came from? Yeah, I could netstat, but what if there's a bunch of AFP sessions open? DisplayURL to the rescue! {12} andre@werk [~] % ~dre/bin/DisplayURL /Volumes/andre ... http://www.dreness.com/blog/archives/23 My Mac Pro arrived today. It's pretty awesome. The first time I opened the cpu panel (after installing CHUD), I thought it was broken. I had all my normal stuff running (safari, ichat, mail, many terminals, itunes, console, a few others), and I was kinda sitting back in my chair ... http://www.dreness.com/blog/archives/17 Here's a way to let spotlight do a full content index of a read only CD. It can even persist across uses :) #!/bin/sh # pass in the name of the r/o volume, e.g. DiskWarriorCD # this is proof of concept only. seriously :) if [ ! $1 ] ; then echo "supply a ... http://www.dreness.com/blog/archives/16 What with opendarwin closing down shop, this seems like a good time to mention that macosforge has seen some rather remarkable activity today. A pile of previously internal Apple bugs were exposed to the world for all to see (including one of mine). In my opinion, this is a really ... http://www.dreness.com/blog/archives/14 287839 004114 http://www.dreness.com/blog/archives/13 http://www.dreness.com/bits/tech/adduser.html (syntax colored) http://www.dreness.com/bits/tech/adduser (raw) http://www.dreness.com/blog/archives/12 AddType audio/x-m4a m4a AddType audio/x-m4b m4b http://www.dreness.com/blog/archives/10 # Automated backups of Open Directory databases (ldap / kerberos / password server) # This needs to run as root and should be mode 700 due to embedded password # Get current date TODAY=`/bin/date +'%m-%d-%y_%H:%M:%S'` # Set destination directory (do not include trailing slash!) DSTDIR=/path/to/backups # Set archive password (needed to restore from / unlock ... http://www.dreness.com/blog/archives/9