PeerBlock

PeerBlock
Developer(s)Mark Bulas, "night_stalker_z", "XhmikosR"
Initial releaseSeptember 27, 2009 (2009-09-27)
Final release
1.2 / January 14, 2014 (2014-01-14)
Repository
Written inC++
Operating systemMicrosoft Windows
Available inEnglish
TypeFirewall
LicenseGPL or zlib License
Websitepeerblock.com

PeerBlock is a free and open-source personal firewall that blocks packets coming from, or going to, a maintained list of blacklisted hosts. PeerBlock is the Windows successor to the software PeerGuardian (which is currently maintained only for Linux). It blocks incoming and outgoing connections to IP addresses that are included on blacklists (made available on the Internet), and to addresses specified by the user. PeerBlock mainly uses blacklists provided by iblocklist.com.