svn不能checkout的问题

原文：http://ju.outofmemory.cn/entry/47112    Ubuntu SVN客户端连接windows VisualSVN SSL证书问题

我看到的是第一个网址，但是他的文章中提到他是转载的：

问题

英文：svn: OPTIONS of 'https://server.domain.local/svn/repo': SSL handshake failed: SSL error:
Key usage violation in certificate has been detected. (https://server.domain.local)

中文：SSL handshake failed: SSL 错误：在证书中检测到违规的密钥用法。

解决方案

Symptoms

Subversion clients receive the following error message when attempting to connect to VisualSVN Server:

You may experience the issue if both of the following conditions are met:

• VisualSVN Server has a self-signed certificate applied and
• Subversion client is built against the GnuTLS library.

NoteGnuTLS library is an alternative to OpenSSL. Most Subversion clients for Windows are built against OpenSSL and are not affected by this issue. While some Subversion packages (available mostly on Linux-based operating systems such as Ubuntu and Debian) are built against GnuTLS and are affected.

Technical background

During the initial setup VisualSVN Server 2.5 generates a self-signed certificate and adds it to the Trusted Root Certification Authorities store on the local machine. To avoid possible security issues, VisualSVN Server makes this self-signed certificate to be valid for server authentication only (by specifying the 'Key Usage' extension). Subversion clients built against GnuTLS don't recognize such certificate and the error occurs.

Workaround

It's not recommended to use a self-signed certificate in a production environment. We advise to use a certificate issued by your domain or a third-party certificate authority instead of a self-signed one.

If you have to use a self-signed certificate please follow the instruction to generate a cerificate without specifying 'Key Usage' extension:

1. Add the following registry value to the Windows registry（修改注册表，添加一条dword类型的键值）:
   • for 32-bit system:

     [HKEY_LOCAL_MACHINE\SOFTWARE\VisualSVN\VisualSVN Server]

   • 点击VisualSVN
Server后右端出现了一个列表，在空白位置右键增加类型为dword，字段名为CreateGnuTLSCompatibleCertificate
值为00000001选择为16进制，可以解决这个问题
   • "CreateGnuTLSCompatibleCertificate"=dword:00000001
   • 

   • for 64-bit system:（我的服务器是32位的，64位没有验证过）

   • 

2. Start VisualSVN Server Manager.
3. Go to Action | Properties | Certificate.
4. Click Change certificate...（重新生成新证书） and follow the wizard instructions to generate a new self-signed certificate.

The certificate will be generated without the 'Key Usage' extension and will be compatible both with GnuTLS and OpenSSL.