Posted by Michael Mon, 03 Mar 2008 18:36:00 GMT
Apple uses the tightvnc protocol for remote desktop. So install tightvnc:
sudo apt-get install xtightvncviewer
Then update your default programs to use it instead of what’s included in Ubuntu Desktop:
sudo update-alternatives --set vncviewer /usr/bin/xtightvncviewer
That’s it. In ubuntu’s RDP client, select the vnc protocol when connecting to a mac.
Posted by Michael Wed, 20 Feb 2008 20:45:00 GMT
This is more information on why you’d ever need, but I like to hear Linus talk.
Posted by Michael Thu, 10 Jan 2008 15:52:00 GMT
You’ve got port 3306 (MySQL) firewalled off and you want to use a MySQL GUI every once in a while (or maybe a bunch).
This is a snap with ssh.
On your local Linux/BSD/Mac/Unix machine (works in cygwin too) edit your .ssh/config file and add:
Host somemysqlserver Hostname server.mydomain.com #your mySQL server FQDN or IP User bob #replace with your valid ssh server username LocalForward *:13306 localhost:3306Now do:
ssh -f -N somemysqlserver
You can now connect to your localhost port 13306 and it will forward to your MySQL server’s port 3306.
Plus, it’s free and probably already installed on your systems.
Need help? support@imapenguin.com
Posted by Michael Thu, 18 Oct 2007 09:42:00 GMT
I just upgraded my IBM T41 to Ubuntu 7.10 by doing:
update-manager -c
from the command line. This forces a dist-upgrade check and runs through a pretty slick upgrader. 20 mins and 1 reboot later and she’s back and running without any issues at all.
Very sweet. I love it when things just work.
Posted by Michael Fri, 06 Jul 2007 11:21:25 GMT
It’s not often that computer work makes me smile. I needed to download 6 files today. This is what made me smile:
[1,2,3,4,5,6].each do |number|
system("wget http://mirror.stanford.edu/yum/\
pub/centos/5.0/isos/i386/\
CentOS-5.0-i386-bin-#{number}of6.iso")
end
Ahh. Ruby, where the simple things are simple.
Posted by Michael Tue, 01 May 2007 14:43:29 GMT
Okay okay. About 100 emails on this. It couldn’t be much easier:
sudo sed -e 's/\edgy/ feisty/g' -i /etc/apt/sources.list sudo apt-get update && sudo apt-get dist-upgrade
No really, that’s it.
Posted by Michael Mon, 02 Apr 2007 09:35:27 GMT
Zultys auto attendants need an 8bit Mono U-law format wav file. Most recording software will give you a stereo 16bit format at the very least. To convert via sox (available for Unix machines including Macs) simply do:
sox -c 2 Audio.wav -c 1 -r 8000 -U Audio2.wav
Posted by Michael Wed, 14 Mar 2007 17:22:00 GMT
We’ve been doing a bunch of server setups for folks in VPS’s. I figure we’d save you the cost of hiring us by posting a quick rundown on an Ubuntu Edgy Rails setup:
sudo bash apt-get update && apt-get upgrade apt-get remove apache2 apt-get install libssl-dev apt-get install zlib1g-dev dpkg --purge apache apache2 apt-get install build-essential apt-get install libreadline5-dev cd /usr/local/src/ wget http://apache.mirror99.com/httpd/httpd-2.2.4.tar.gz tar -xzvf httpd-2.2.4.tar.gz cd httpd-2.2.4 ./configure --enable-proxy --enable-proxy-balancer\ --enable-proxy-http --enable-rewrite --enable-cache\ --enable-headers --enable-ssl --enable-so make && make install /usr/local/apache2/bin/apachectl start apt-get install mysql-server /etc/init.d/mysql start cd /usr/local/src/ wget ftp://ftp.ruby-lang.org/pub/ruby/ruby-1.8.6.tar.gz wget http://rubyforge.org/frs/download.php/17189/rubygems-0.9.2.zip apt-get install unzip unzip rubygems-0.9.2.zip tar -xzvf ruby-1.8.6.tar.gz cd ruby-1.8.6 ./configure && make && make install cd ../rubygems-0.9.2 ruby setup.rb gem update gem install rails --include-dependencies apt-get install libmysqlclient15-dev gem install mysql --include-dependencies gem install mongrel --include-dependencies gem install mongrel_cluster --include-dependencies
Then you need some optional housecleaning and deploy your app. We’ll assume you know this part. If not, you can flame me via email and I’ll help you.
Posted by Michael Thu, 25 Jan 2007 09:35:49 GMT
Okay so the build in Linux From Scratch on Ubuntu Part 2 was simple enough, now all that’s left is a bootloader and a reboot.
Make sure your LFS environment variable is set and mount the running dev filesystem into your LFS build:
sudo mkdir -pv $LFS/{dev,proc,sys}
sudo mount --bind /dev $LFS/dev
sudo mount -vt devpts devpts $LFS/dev/pts
sudo mount -vt tmpfs shm $LFS/dev/shm
sudo mount -vt proc proc $LFS/proc
sudo mount -vt sysfs sysfs $LFS/sys
Now we’ll chroot into the new system:
sudo chroot "$LFS" /tools/bin/env -i \
HOME=/root TERM="$TERM" PS1='\u:\w\$ ' \
PATH=/bin:/usr/bin:/sbin:/usr/sbin:/tools/bin \
/tools/bin/bash --login +h
and set a root password:
passwd root
The following COULD overwrite your current bootloader, so you MIGHT WANT TO READ THE LFS BOOK FIRST!
grub root(hd0,0) setup (hd0) quit
Then create your grub.conf:
cat > /boot/grub/menu.lst << "EOF" # Begin /boot/grub/menu.lst # By default boot the first menu entry. default 0 # Allow 30 seconds before booting the default. timeout 30 # Use prettier colors. color green/black light-green/black # The first entry is for LFS. title LFS 6.2 root (hd0,0) kernel /boot/lfskernel-2.6.16.27 root=/dev/hda1 EOF
a little standards compliance:
mkdir -v /etc/grub && ln -sv /boot/grub/menu.lst /etc/grub echo 6.2 > /etc/lfs-release
then we’ll reboot:
logout sudo umount -v $LFS/dev/pts sudo umount -v $LFS/dev/shm sudo umount -v $LFS/dev sudo umount -v $LFS/proc sudo umount -v $LFS/sys sudo umount -v $LFS shutdown -r now
Now, since we created a separate disk for this, simply make the IDE disk the first in the boot order and boot it up. If you did exactly what I did, with the same hardware setup, this should work for you as easily as it did me.
Have fun! Oh and did I mention to READ THE LFS BOOK before you email me questions at mike@imapenguin.com?
In Part 4 we’ll talk about where to go from here.
Posted by Michael Thu, 25 Jan 2007 08:22:09 GMT
Here’s an interesting one. This morning I went to upgrade a CentOS 4.3 to 4.4 via yum and got:
Error: Missing Dependency: rpm = 4.3.3-13_nonptl is needed by package rpm-build Error: Missing Dependency: rpm = 4.3.3-13_nonptl is needed by package rpm-devel
doing
rpm --erase rpm-build-4.3.3-13_nonptl rpm --erase rpm-devel-4.3.3-13_nonptl yum upgrade -y && yum install rpm-build rpm-devel
seemed to clear it up, but I’m not sure how it got that way. Anyway, I figured I publicly post that in case you run into the same issue.
