Security Onion BitTorrent Instructions
This documents the process of downloading the latest Security Onion using BitTorrent, as well as the process of creating the .torrent file.
1 How to download Security Onion using BitTorrent
Assuming you're running the stock Security Onion with the transmission client, do the following to download the latest version:
[ ]Click on the link http://port111.com/securityonion-12.04.5.3-20150825.iso.torrent. This will download the .torrent file (to~/Downloadsby default)[ ]Click on the .torrent file[ ]When transmission comes up with the "Torrent options" window, select the .torrent file and click "Open". The download will begin, in ~/Downloads by default[ ]When done, verify the .md5
cd ~/Downloads md5sum securityonion-12.04.5.3-20150825.iso cat securityonion-12.04.5.3-20150825.iso.md538ee2cf19f884f0916b076163aab58a5 securityonion-12.04.5.3-20150825.iso 38ee2cf19f884f0916b076163aab58a5 securityonion-12.04.5.3-20150825.iso
2 How to create a .torrent file for Security Onion
2.1 Download and verify the ISO
2.1.1 Go to the web page in a browser http://sourceforge.net/projects/security-onion/files/12.04.5.3/
2.1.2 Get a direct download like to use for the webseed
Start a download with wget. This will do a redirect.
wget http://downloads.sourceforge.net/project/security-onion/12.04.5.3/securityonion-12.04.5.3-20150825.iso
Grab the redirect URL. This is the real iso download URL. It will be something like:
http://skylineservers.dl.sourceforge.net/project/security-onion/12.04.5.3/securityonion-12.04.5.3-20150825.iso
Kill the first wget. You might consider doing this a couple times to get multiple webseeds (downloads.sourceforge.net appears to be a round robin DNS rotation pointing at different mirror sites)
I did this and got:
http://skylineservers.dl.sourceforge.net/project/security-onion/12.04.5.3/securityonion-12.04.5.3-20150825.iso http://superb-dca2.dl.sourceforge.net/project/security-onion/12.04.5.3/securityonion-12.04.5.3-20150825.iso http://iweb.dl.sourceforge.net/project/security-onion/12.04.5.3/securityonion-12.04.5.3-20150205.iso
2.1.3 Download the ISO
cd ~/Downloads
wget http://iweb.dl.sourceforge.net/project/security-onion/12.04.5.3/securityonion-12.04.5.3-20150825.iso
2.1.4 Download the .md5 file
date cd ~/Downloads pwd wget http://iweb.dl.sourceforge.net/project/security-onion/12.04.5.3/securityonion-12.04.5.3-20150825.iso.md5 || true
#+endexample
2.1.5 Verify the MD5
cd ~/Downloads
md5sum securityonion-12.04.5.3-20150825.iso
cat securityonion-12.04.5.3-20150825.iso.md5
e35846293dcecf76e5b8d39f6d48c9de securityonion-12.04.5.3-20150825.iso e35846293dcecf76e5b8d39f6d48c9de securityonion-12.04.5.3-20150825.iso
2.2 create the .torrent file
2.2.1 Choose some trackers
I'm using the list (mostly) from https://openbittorrent.com/. Trackers tend to change. You may find other options here: http://en.wikipedia.org/wiki/BitTorrent_tracker#Public_trackers or https://www.google.com/search?client=ubuntu&channel=fs&q=open+public+bittorrent+trackers
udp://tracker.openbittorrent.com:80/announce udp://tracker.coppersurfer.tk:6969 udp://tracker.leechers-paradise.org:6969 udp://tracker.publicbt.com:80/announce udp://IPv6.leechers-paradise.org:6969
2.2.2 Create the .torrent file using deluge
I'm using deluge on Ubuntu. Other torrent clients should be similar.
[ ]Open deluge (apt-get install delugefirst if needed)[ ]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.
2.3 Put the .torrent file some place people can get it.
I put a copy here. http://port111.com/securityonion-12.04.5.3-20150205.iso.torrent This could be dropbox, a URL, an email attachment, etc.
Download stats are available here http://port111.com/webalizer/
2.4 Test the download and verify the md5 as above
2.5 Announce the .torrent
Let people know it's there. Encourage people to seed (leave their clients running a while) after they finish the download.