解决svn错误：’SSL handshake failed: SSL error: Key usage violation in certificate has been detected.’

12.04前：

sudo apt-get install libneon27-dev

sudo mv /usr/lib/libneon-gnutls.so.27 /usr/lib/libneon-gnutls.so.27.old

sudo ln -s /usr/lib/libneon.so.27 /usr/lib/libneon-gnutls.so.27

12.04：

1. Uninstall the current libneon package:
   sudo apt-get remove libneon27>
2. Download the latest libneon package fromhttp://packages.debian.org/squeeze/libneon27  (at the bottom you can choose the right version for your architecture).
   1. 32位下载：http://ftp.cn.debian.org/debian/pool/main/n/neon27/libneon27_0.29.3-3_i386.deb
   2. 64位下载：http://ftp.cn.debian.org/debian/pool/main/n/neon27/libneon27_0.29.3-3_amd64.deb
3. Install the required libssl dependency:
   sudo apt-get install libssl0.9.8
4. Install the downloaded libneon package. E.g. for the 64Bit architecture:
   dpkg -i libneon27_0.29.3-3_amd64.deb 或 libneon27_0.29.3-3_i386.deb
5. Change the symbolic links again like described above:
   sudo mv /usr/lib/libneon-gnutls.so.27 /usr/lib/libneon-gnutls.so.27.old
sudo ln -s /usr/lib/libneon.so.27 /usr/lib/libneon-gnutls.so.27