Peer Guardian is without doubt a popular security software that uses blacklists to block connection attempts to a computer system. Various blacklists are provided including those listing IPs of anti-p2p organizations, government and educational IPs but also adware and spyware servers. A problem that users of Peer Guardian experience are crashes and several other issues which can be mainly attributed to the fact that the security software has not been updated in the last two years.
Peer Block is a fork of Peer Guardian that tries to address these issues. It is actively developed and provides the same functionality (but with less problems) than Peer Guardian.
Users can download Peer Block from the official website. It offers a selection of IP blacklists that can be subscribed to. By default only the P2P blacklist is selected during setup. It is possible to select other blacklists which will then be updated at the first startup of the application.

Regular updates of the blacklists are configured automatically with the option to change the frequency in the settings. The interface itself looks like the Peer Guardian interface.
Peer Block supports all popular Microsoft Windows operating systems including Windows 7, Windows Vista and Windows XP. It is the perfect alternative for users who are experiencing problems with Peer Guardian or prefer a software that gets updated regularly.
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25 Responses to “Peer Block Continues Where Peer Guardian Left Off”
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[...] Windows only: Free application PeerBlock is a fork of Peer Guardian 2, the popular application designed to protect your privacy when downloading, updating the two-year-old application with various bug fixes and improvements. PeerBlock looks and acts almost exactly like PG2, namely because it is essentially PG2 with those bug fixes added. As such, after installing PeerBlock you should be able to follow our previous guide to using Peer Guardian 2 to get the app running and protecting your downloading privacy from prying eyes. PeerBlock [via gHacks] [...]
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[...] PeerBlock looks and acts almost exactly like PG2, namely because it is essentially PG2 with those bug fixes added. As such, after installing PeerBlock you should be able to follow our previous guide to using Peer Guardian 2 to get the app running and protecting your downloading privacy from prying eyes. PeerBlock [via gHacks] [...]
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[...] and protecting your downloading privacy from prying eyes. PeerBlock [via gHacks] Share and [...]
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[...] PeerBlock looks and acts almost exactly like PG2, namely because it is essentially PG2 with those bug fixes added. As such, after installing PeerBlock you should be able to follow our previous guide to using Peer Guardian 2 to get the app running and protecting your downloading privacy from prying eyes. PeerBlock [via gHacks] [...]
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[...] PeerBlock looks and acts almost exactly like PG2, namely because it is essentially PG2 with those bug fixes added. As such, after installing PeerBlock you should be able to follow our previous guide to using Peer Guardian 2 to get the app running and protecting your downloading privacy from prying eyes. PeerBlock [via gHacks] [...]
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[...] [via gHacks] [...]
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[...] PeerBlock looks and acts almost exactly like PG2, namely because it is essentially PG2 with those bug fixes added. As such, after installing PeerBlock you should be able to follow our previous guide to using Peer Guardian 2 to get the app running and protecting your downloading privacy from prying eyes. PeerBlock [via gHacks] [...]
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[...] PeerBlock Safeguards Your “Legal” Activity *wink* I know I know. So you’re sharing the latest Ubuntu release over the BitTorrent network, but you want to make sure you don’t upload it to any of those people at the RIAA or anything. Yeah, because you don’t want to share with them if they won’t share with you, right? For situations like that you’ll want to grab PeerBlock, which is a blacklist for those pesty anti-P2P groups. They won’t be gettin’ no Ubuntu from me! [...]

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“security software has not been updated in the last two years.”
Yes it has!, but yea its full of bugs
It’s not clear to me what’s the point here. Why not simply use your windows hosts file to block a list of unwanted IP addresses?
Henk it is not about blocking some IP addresses, it is about blocking thousands of them. The blacklists get updated regularly and cover a good percentage of IP addresses that users want to block on their systems.
the hosts file is for resolving domain names to ips, not ip filtering. you can use it to trick your pc into resolving an ip to local host, but not to block a specific ip.
C’mon Martin!
Not a single word about the fact that those list block less than 1% of anti-p2p organizations and that they block whole ISP because there might be 1 anti-p2p organization?
When people read this they think they are safe against anti-p2p organization when using this, but even if you set the program to block all ips (0.0.0.0-255.255.255.255) anti-p2p organizations will still be able to see your ip if you use P2P (ofc. you need to unblock the trackers ip).
due the fact that you “add” your ip to the tracker and the anti-p2p organization will be able to get your ip from the tracker without connecting to you.
HNicolai, I thought it was common sense :)
Its not about them getting the i.p its about them being able to connect and get a file or part of, from that i.p.
I forgot to say that they work great as a ip blocker, but you can just use the “HOSTS” file to block ip’s,
And all those big list is impossible to keep up-to-date, so they are very bad.
FInally!!!… This is definately a good program to have.. You dont use Hosts file for these types of blocks.. You can use this tool for all clients or use utorrent ip filter updater for utorrent alone..
Also for people wishing to keep their Hosts File up to date check out Hostsman.. I use the standard (default) MVPS list..
Correct me if I’m wrong, but I don’t think you could block IPs with the HOSTS file, only domain names.
Gueb you are right. You could however theoretically do a reverse IP lookup to find out if the IP resolves to a domain.
Good find Martin. I’ve always had decent luck with PG2 but a few crashes to be sure. I’ll give this a shot on one of my x32 systems.
Currently PG2 (4 lists active) is blocking 758,617,403 IP addresses. That is a lot of footwork.
@Martin: Yeah, it should be common sense! But when talking about PG2 people seems to have lost there common sense.
If you are deeply concerned about hackers putting their fingers on your machine, give http://galinux.myftp.org/blacklist.p2p a try. Best deny list ever!
Can a service provider lock the peer to peer file download in my personal computer by some some setting in the Internet Explorer because by using a Bit Torrent file download I always get a Error & Access denied
Sonu C:
I would need further info about what P2P program you are using, blocking & security tools, etc. In short: it is possible for an IPS to make P2P sharing difficult, but it should be notated in your contract. You can try some simple things as using “ofuscated mode” in e/amule, chosing different ports than those by default, pinging prominent P2P servers or peers… Sometimes P2P doesn’t work fine just for intermediate cache-hosts. They can use them for saving bandwith, but it has lots of drawbacks. Again, that should be reflected in the agreement that you signed.