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Python password generator

#!/usr/bin/env python
# Filename: passgen.py

import random, string

mystr = string.ascii_letters+string.digits
random_string = []

while len(random_string) <= 8:
    random_string.append(random.choice(mystr))
print "".join(random_string)

Password protecting folders with nginx

Ever wondered how you can password protect a folder and the underlying content with nginx the same way Apache does? Pretty simple.

First create a htpass-file like so:

htpasswd -bc htpass NewUser NewPassword

Edit your site’s configuration file by adding the following lines of code inside the server-block:

location ^~ /secret {
    auth_basic "Restricted";
    auth_basic_user_file /etc/nginx/htpass;
}

And your folder should be password protected. :)

Converting an avi to the Nokia E71 size

This is a oneliner to convert an avi-file to the correct dimensions of a Nokia E71. The screen is small, but sure beats to buy an iTouch if your cell already can play movies for you. :)

ffmpeg -y -i input.avi -acodec libfaac -ab 72k -s 320x176 -aspect 16:9 -vcodec libx264 -b 300k -qcomp 0.6 -r 25 -qmin 16 -qmax 51 -qdiff 4 -flags +loop -cmp +chroma -subq 7 -refs 6 -g 250 -keyint_min 25 -rc_eq 'blurCplx^(1-qComp)' -sc_threshold 40 -me_range 12 -i_qfactor 0.71 -directpred 3 output.mp4

.cue/.bin to .iso

First install the program called bchunk:

yum -y install bchunk

Now we convert .bin/.cue to .iso:

bchunk foo.bin foo.cue foo.iso

And there you go.

flac to mp3

for file in *.flac; do $(flac -cd "$file" | lame -h - "${file%.flac}.mp3"); done

ssh-agent-script

To be placed in your .bashrc-file:

SSHAGENT="/usr/bin/ssh-agent"
SSHAGENTARGS="-s"

if [ -z "$SSH_AUTH_SOCK" -a -x "$SSHAGENT" ]; then
  eval `$SSHAGENT $SSHAGENTARGS`
    trap "kill $SSH_AGENT_PID" 0
fi

ssh-clean-keys

Simple lines of code to clean invalid hosts from your .known_hosts-file.

ssh-clean-keys () 
{ 
    for host in $1 $(dig +short $1);
    do
        echo "Cleaning $host";
        ssh-keygen -R $host 2>&1 | sed -e 's,^,I,g';
    done
}