Projects / Tor-ramdisk


Tor-ramdisk is a uClibc-based micro Linux distribution whose only purpose is to host a Tor server in an environment that maximizes security and privacy. Tor is a network of virtual tunnels that allows people and groups to improve their privacy and security on the Internet. Security is enhanced in tor-ramdisk by employing a monolithically compiled GRSEC/PAX patched kernel and hardened system tools. Privacy is enhanced by turning off logging at all levels so that even the Tor operator only has access to minimal information. Finally, since everything runs in ephemeral memory, no information survives a reboot, except for the Tor configuration file and the private RSA key, which may be exported and imported by FTP or SSH.


Recent releases

  •  20 May 2014 13:10

    Release Notes: This release updates tor to version, the kernel to 3.14.4 plus Gentoo's hardened-patches, and openssh to 6.6p1. The bump in tor adds an important block to authority signing keys that were used on authorities vulnerable to the "heartbleed" bug in OpenSSL, CVE-2014-0160. The bump in the kernel addresses the pty layer race condition memory corruption, CVE-2014-0196. Upgrading is strongly recommended.

    •  10 Apr 2014 13:28

      Release Notes: This release addresses CVE-2014-0160 in openssl, which was bumped to version 1.0.1g. The kernel was also bumped to 3.13.8 plus Gentoo's hardened-patches, but all other packages remain at the same versions as the previous release. Upgrading is strongly recommended.

      •  09 Mar 2014 22:33

        Release Notes: This release bumps tor to version and the kernel to 3.13.5 plus Gentoo's hardened-patches. All other components are kept at the same versions as the previous release. It also adds haveged, a daemon to help generate entropy on diskless systems, for a more cryptographically sound system. Testing shows that previous versions of tor-ramdisk were operating at near zero entropy, while haveged easily keeps the available entropy close to 9000 bits. Upgrading is strongly encouraged.

        •  05 Jan 2014 16:28

          Release Notes: This release follows the upstream's release of tor- The kernel was also updated to Linux-3.12.6 plus Gentoo's hardened-patches-3.12.4-3.extras, but all other components were kept at the same version as the 20131216 release.

          •  21 Dec 2013 14:59

            Release Notes: Only the i686 and x86_64 ports have been released so far. Tor was updated to, libevent to 2.0.21, busybox to 1.21.1, and the kernel to 3.12.4 plus Gentoo's hardened-patches-3.12.4-1.extras. uClibc was kept at its latest release (, with some backported patches.


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