mikeperry's blog

I have noticed that a lot of new exit nodes have recently appeared on the network. This is great news, since exit nodes are typically on the scarce side. Exits usually occupy 30-33% of network by capacity, but are currently at a whopping 38.5% (156 MBytes/sec out of 404 total).

However, I want to make sure that these nodes stay up and don't end up being shut down due to easily preventable abuse complaints. I've run a number of exit nodes on a few different ISPs and not only have I lived to tell about it, I've have not had one shut down yet. Moreover, I've only received about 4 abuse complaints in as many years of running exit nodes. This is in stark contrast to other node operators following a more reactive strategy. I'm convinced this is largely because I observe the following pro-active guidelines. read more »

Like Karsten, I too am presenting at HotPETS in Seattle in August. My presentation will cover my work with my TorFlow suite - a python library and utility set to assist measuring and adjusting performance on the Tor network, and to scan the network for malfunctioning and misbehaving exits. read more »

For those of you just tuning in: Over the past year, I have been the maintainer of the Torbutton Firefox extension, adding a number of features and security enhancements to transform Torbutton from a simple proxy switcher into a secure way to fully isolate all browser state from one proxy state to another and defend against all known privacy and IP address leakage attacks.

The release candidate phase of the extension started about a month ago, but with the release of Firefox 3 and Torbutton 1.2.0rc series occurring at the same time, we've hit a number of unexpected rough spots and snags. However, with the 1.2.0rc5 release of Torbutton, I'm pleased to report that the majority of those now seem to be behind us (a few annoying Firefox bugs notwithstanding).

Thanks to contributions from arno, the Cookie Jar features now work with Firefox 3. They have even been improved to allow cookies to persist in memory-based jars across Tor toggle (as opposed to requiring Tor cookies to be written to disk to preserve them), which I personally already find very useful. read more »