Noting that starting from linux-source-2.6.20 (2.6.20-10.17), the support for TCP MD5 signatures is enabled in the stock Ubuntu kernels.
Tore -- Update TCP-MD5 patch to support Linux 2.6.20 https://launchpad.net/bugs/90114 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs