Transmission is, in my opinion, the best BitTorrent client for OS X and Linux [and did you know there’s even an unofficial Windows version too?]. Why? Because it’s super easy to use and configure and it’s not resource-hungry like some other one [someone said µTorrent for OS X?].
But it has a problem. Blocklists are damn hard to find.
Looking for a nice and complete blocklist for Transmission can be a pain, especially if you’re not sure of which one to pick. In fact there are a ton of lists all for different purposes and no one will give you complete bad-peer protection since one will shield your client from spammers, one from the US Government [really?] and no one from all those things combined.
If you search on Google you will find people recommending this website, called iBlocklist, which collects various block lists but there are to many of them and they all have the same problem I said before: no complete 100% protection.
Luckly John Tyree, a user from quora.com, created a GitHub project which combines all those iBlocklist lists in to a single one and he hosted the result here:
http://john.bitsurge.net/public/biglist.p2p.gz
simply add this URL in the Transmission preferences like this:
and the application will do all the magic for you combining the lists and adding those IP rules to the built-in firewall. Be sure to check the option below to make Transmission update the blocklist weekly for you so you won’t have to worry anymore. This works with all versions of Transmission and with all OSs.
If this post was useful to you feel free to buy me a beer 🍺! Thank you really much.
GiulioMac 
http://www.wael.name/wael.list.p2p.gz
459,655 rules as of Friday July 15th, 2016
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Hi. Tuesday, Aug 23, 2016, “only” 153k rules..
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As of today, 272k
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For a few weeks, and today 18th Aug 2016 http://john.bitsurge.net/public/biglist.p2p.gz both been sitting on 459665 .. tried http://ip2k.com/list.gz and it is the same.
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sudo wget https://raw.githubusercontent.com/cinus/iblocklist/master/get_lists.sh && sh get_lists.sh
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459,655 its mean you block more good peers 🙂
new rules less and only bad peers.
Have a nice day.
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Domain just expired: http://john.bitsurge.net/public/biglist.p2p.gz
Empty list: http://ip2k.com/list.gz
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Consider this list – https://jult.net/bloc.txt.gz
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the list is really good, thank the labor and courtesy for having shared with us, sincerely thanks 🙂
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can someone please leave a update blocklist with 500k or better please for 2017 ty
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I stopped using iblocklist, its lists are filled with many totally legit ip blocks.
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Thanks a lot !!
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@gulio: This blocklist is offline – the domain is available to buy. Please update the article or state that it is “end of life”. Thanks!
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It looks like John’s list is no longer up, I think the domain expired. Anywhere else that hosts an awesome list like this?
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2018-07-23 04:12 UTC: http://john.bitsurge.net/public/biglist.p2p.gz was missing. http://john.bitsurge.net/public/ showed no files. http://john.bitsurge.net/ showed no files, folders, or text. I presume the service was terminated or moved to an unspecified location. It is very difficult to know if an article is out of date since articles have no posted dates. A sad lack of documentation that can be remedied by the author by including the date written in the valediction of the article.
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2018-07-23 04:17 UTC: http://ip2k.com/list.gz downloaded a zero byte file.
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December 2018 and we still use this list for transmission -450k rules – and well, it’s worked for me my life and all the people I’ve lived with and show too knock on wood and well, transmission is the best and this doesn’t hurt 🙂
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No longer updated? Try this instead:
http://www.wael.name/wael.list.p2p.gz
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Peerblocklist.com has exactly what you want. Also, iblocklist sucks gorilla balls.
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0 rules as of 2020.04.11
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http://john.bitsurge.net/public/biglist.p2p.gz
410,036 rules as of 20200607
Waited for the updating list dialog box to close itself (maybe hitting Close button early kills it?)
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John’s “Big List” is dead, and the GitHub repository is gone. As of October 2021, the following list is being updated regularly. It’s a good replacement for John’s.
GitHub Project: https://github.com/Naunter/BT_BlockLists/
Blocklist: https://github.com/Naunter/BT_BlockLists/raw/master/bt_blocklists.gz
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