• populate the initial set with [1,2]
• at each iteration

• calculate the product of all the elements of the set except the last
• add the last element to this product and append it to the set

It seemed unlikely that I was the first person to think of this set, but http://oeis.org/A003686 was the only result for my google search of “1, 2, 3, 5, 11, 41, 371″

No idea what dude is talking about, but I thought it was interesting…

Here is a link to the awk script: primo.awk.

Here is some output before it gets sign extended:

[ 1, 2 ] : 1 + 2 = 3
[ 1, 2, 3 ] : 2 + 3 = 5
[ 1, 2, 3, 5 ] : 6 + 5 = 11
[ 1, 2, 3, 5, 11 ] : 30 + 11 = 41
[ 1, 2, 3, 5, 11, 41 ] : 330 + 41 = 371
[ 1, 2, 3, 5, 11, 41, 371 ] : 13530 + 371 = 13901
[ 1, 2, 3, 5, 11, 41, 371, 13901 ] : 5019630 + 13901 = 5033531
[ 1, 2, 3, 5, 11, 41, 371, 13901, 5033531 ] : 69777876630 + 5033531 = 69782910161
[ 1, 2, 3, 5, 11, 41, 371, 13901, 5033531, 69782910161 ] : 351229105131280512 + 69782910161 = 351229174914190656

Here is on I did based on a doodle: spinning head.

It’s fun coming up with the offset to make the animation work!

The other day, I also played with the glitch developer api to make this goofy thing based off the example code: glitch demo.

If you put in ur player code, you can see ur guy pop in there!

export VISUAL=vim ; export EDITOR=vim ; set -o vi

$ echo -e 'SomeNiceHTTPCandyTCPSocketWrapper\nSimpleExample\nMoreHTTPFun' \
  | sed 's,\([A-Z][A-Z]*\)\([A-Z]\),\1_\2,g;s,\([a-z]\)\([A-Z]\),\1_\2,g' \
  | tr '[a-z]' '[A-Z]'
SOME_NICE_HTTP_CANDY_TCP_SOCKET_WRAPPER
SIMPLE_EXAMPLE
MORE_HTTP_FUN

Add a line like this:

Defaults:YOU_USERNAME_GOES_HERE_DUDE timestamp_timeout=28800

to your /etc/sudoers and ride it all night long!

Here is a quickstart for funning around with nodejs and rabbitmq

The copy-pasta is from my retro machine at the house running ubuntu 10 (Maverick), but there’s little ubuntu specific stuff…

install nodejs

 % git clone https://github.com/joyent/node.git
 % cd node
 % sudo apt-get install g++ libssl-dev
 % ./configure && make && sudo make install
 % echo 'console.log( "go node!" )'  | node

install npm

As per the website, you can run the install script from curl.

Oddly enuff, to avoid running it as root, buddy suggests making your user own all of /usr/local.

Instead, I thought I’d add an npm user and setuid the npm stuff:

 % sudo adduser --gid 0 npm
 % sudo chmod g+w /usr/local/lib
 % sudo chmod g+w /usr/local/share/man
 % sudo chmod g+w /usr/local/bin
 % sudo chmod g+w /usr/local/man/man1
 % sudo su npm
 % cd /tmp
 % git clone https://github.com/isaacs/npm.git
 % cd npm
 % ./configure
 % make && make install

Just have to use the npm user to install node-amqp:

 % sudo su npm -c "npm install -g amqp"
 % cd
 % ln -s /usr/local/lib/node_modules

install rabbitmq

The out of the box rabbit for ubu10 was ancient bullshit!

The rabbitmq guys have some tips… basically:

 % echo deb http://www.rabbitmq.com/debian/ testing main | sudo tee -a /etc/apt/sources.list
 % wget http://www.rabbitmq.com/rabbitmq-signing-key-public.asc
 % sudo apt-key add rabbitmq-signing-key-public.asc
 % sudo apt-get update
 % sudo apt-get install rabbitmq-server

It gets cranked up at install and there is a handy init script:

 % sudo /etc/init.d/rabbitmq-server status

a simple demo

So… this code runs fine on my mac, but is weirdly busted on my olde ubuntu box:

clear ; ./amqp-dee-dum.js
connected
ready
got the exchange
[hilarity ensues: try it out!]

I had to create new exchange named ‘tmp’, it wouldn’t let me use ‘amq.direct’ for some reason…

Anyhooo…

I think the code is pretty ez to follow if sorta copy-pasta heavy.

I hope to do a refactored version at some point…

what happened with the old rabbit

connected
ouch: Oversized frame 1342243080
cya!
FATAL ERROR: v8::Object::SetIndexedPropertiesToExternalArrayData() length exceeds max acceptable value

Using the non-crusty version everything worked fine.

After reading Jesse‘s article, I used paramiko to copy a script around, run it and collect the output on the local filesystem

Here is some crap example:

import os
import paramiko
import socket
import sys

# yeh... my script really doesn't look like this...

host = 'super.cool.hostname.example.com'
username = 'root'
password = 'passwords_are_for_cowards'

tmp  = '/tmp/cool_script.sh'

# copy our cool_script over to the host in /tmp
transport = paramiko.Transport( ( host, 22 ) )
transport.connect( username = username, password = password )
sftp = paramiko.SFTPClient.from_transport( transport )
sftp.put( 'cool_script.sh', tmp )
sftp.close()

# seems like ssh.connect sometimes fails due to some
# weird dns issue, so hack around it...
ip = socket.gethostbyname( host )

# chmod and run the script
ssh = paramiko.SSHClient()
ssh.load_system_host_keys()
ssh.set_missing_host_key_policy( paramiko.AutoAddPolicy() )
ssh.connect( ip, username = username, password = password )
stdin, stdout, stderr = ssh.exec_command( 'chmod 755 ' + tmp + ';' + tmp )
data = stdout.read()
ssh.close()

# save the output as json on the local filesystem
filename = host + '.json'
output = open( filename, 'w' )
output.write( data )
output.close()

EZ-PZ!

I’ve always hated this kind of bullshit…

Here is the second puzzle…

I’m sure someone enjoys this sort of thing…

Typically this is a small scale, 0 security scenario just to dump some crap into.

I like to have the database name, username and password all be the same.

Here is a little script to mysql5 user create / user add it up:

export domain="fnck"
export UP="-uroot -proot"
mysqladmin ${UP} create ${domain}
cat << EOM | mysql ${UP}
CREATE USER '${domain}'@'localhost' IDENTIFIED BY '${domain}';
GRANT ALL PRIVILEGES ON ${domain}.* TO '${domain}'@'%' WITH GRANT OPTION;
EOM
echo "show tables;" | mysql -u${domain} -p${domain} ${domain}

I rolled it up into nu_mysql_duh_buh.sh

5uck it!

For some reason, ports install of mysql 5 on my mac has a fckng “5″ on the end of all the commands:

cd /opt/local/bin
for dumb in mysq*5 ; do
   duh=$( echo ${dumb} | sed 's,5$,,' )
   sudo ln -s ${dumb} ${duh}
done