HOWTO Create A Torrent File for Security Onion Releases

This documents the process of creating a .torrent file for Security Onion 12.04.1-20130605. This same genreal process should work for all files

1 Download and verify the ISO

Go to the web page in a browser http://sourceforge.net/projects/security-onion/files/12.04.1/

Copy the donwoload link

Start a download with wget. This will do a redirect.

wget http://sourceforge.net/projects/security-onion/files/12.04.1/securityonion-12.04.1-20130605.iso/download

Grab the redirect URL. This is the real iso download URL.

http://iweb.dl.sourceforge.net/project/security-onion/12.04.1/securityonion-12.04.1-20130605.iso

Download the ISO using this URL

wget http://iweb.dl.sourceforge.net/project/security-onion/12.04.1/securityonion-12.04.1-20130605.iso

Download the .md5 file

wget http://iweb.dl.sourceforge.net/project/security-onion/12.04.1/securityonion-12.04.1-20130605.iso.md5

Verify the MD5

 $ ls -lt securityonion-12.04.1-20130605*
 -rw-rw-r--   1 gmj            gmj            69 2013-06-06 06:19 securityonion-12.04.1-20130605.iso.md5
 -rw-rw-r--   1 gmj            gmj      1320792064 2013-06-06 06:11 securityonion-12.04.1-20130605.iso
 $ md5sum securityonion-12.04.1-20130605.iso
 39cb8a1859512b2e870c12f81e8db629  securityonion-12.04.1-20130605.iso
 $ cat securityonion-12.04.1-20130605.iso.md5
39cb8a1859512b2e870c12f81e8db629  securityonion-12.04.1-20130605.iso

2 Create the .torrent file

Choose some trackers
- I googled for "public bittorrent trackers" https://www.google.com/search?client=ubuntu&channel=fs&q=public+bittorrent+trackers and chose a few from this list: https://forum.suprbay.org/showthread.php?tid=135090
```
udp://tracker.istole.it:80
udp://tracker.openbittorrent.com:80/announce
udp://tracker.publicbt.com:80
udp://tracker.ccc.de:80
```

Start the torrent client
I'm using deluge on Ubuntu. Other torrent clients should be similar.
- [ ] Open deluge
- [ ] Choose "file -> create torrent" and select the .iso file
- [ ] Add the "webseed" using the iso download URL. This is important. This is how people can download the file if there are no other seeders.
- [ ] Save the torrent file.

3 Put the .torrent file some place people can get it.

I put a copy here. http://port111.com/securityonion-12.04.1-20130605.iso.torrent
This could be drobox, a URL, an email attachment, etc.

4 Test the .torrent

5 Announce the .torrent

Let people know it's there.
Encourgae people to seed (leave their clients running a while) after they finish the download.