ssl_preread是基于L4的反代方案，TLS SNI握手时客户端会提供域名，所以可以让Nginx在无需完成TLS握手的情况下，就根据域名进行后端服务器的选择。简单来讲，你只需要给后端服务器配置一个SSL证书，而提供反代功能的Nginx则无需配置。文档见此：http://nginx.org/en/docs/stream/ngx_stream_ssl_preread_module.html 因为这是L4反代，所以通过“proxy_set_header”传递客户端IP的方法是行不通的。其实传递客户端IP的解决办法跟上一篇文章类似：L4(传输层)IP透明反向代理的实现(传递客户端真实IP)，ng […]
Tag: tls
libvirtd: virNetTLSContextValidCertificate:994 : Unable to verify TLS peer: No certificate was found.
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Jan 29 06:20:12 debian libvirtd[3363]: 2019-01-29 11:20:12.116+0000: 3363: error : virNetTLSContextValidCertificate:994 : Unable to verify TLS peer: No certificate was found. Jan 29 06:20:12 debian libvirtd[3363]: 2019-01-29 11:20:12.116+0000: 3363: warning : virNetTLSContextCheckCertificate:1125 : Certificate check failed Unable to verify TLS peer: No certificate was found. Jan 29 06:20:12 debian libvirtd[3363]: 2019-01-29 11:20:12.116+0000: 3363: error : virNetTLSContextCheckCertificate:1128 : authentication failed: Failed to verify peer's certificate |
使用TLS连接libvirtd时，默认需要验证客户端是否拥有由CA签名的证书，详见libvirtd配置文件（/etc/libvirt/libvirtd.conf）：
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# Flag to disable verification of client certificates # # Client certificate verification is the primary authentication mechanism. # Any client which does not present a certificate signed by the CA # will be rejected. # # Default is to always verify. Uncommenting this will disable # verification - make sure an IP whitelist is set #tls_no_verify_certificate = 1 |
取消此行的注释即可关闭此验证（当然你得启用其它身份认证途径）：
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#tls_no_verify_certificate = 1 |
也可选择以让CA给客户端签发证书：
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# 自行修改CA私钥与证书的路径 CA_KEY_FILE_PATH="/etc/pki/libvirt/private/cakey.pem" CA_CERTIFICATE_FILE_PATH="/etc/pki/CA/cacert.pem" # 客户端私钥，CSR，证书保存路径 PKI_PREFIX="/tmp/client_pki/" CLIENT_PRIVATE_KEY_FILE_PATH="${PKI_PREFIX}/clientkey.pem" CLIENT_CSR_FILE_PATH="${PKI_PREFIX}/clientcsr.pem" CLIENT_CERTIFICATE_FILE_PATH="${PKI_PREFIX}/clientcert.pem" oldUmask=$(umask) umask 0077 mkdir -p ${PKI_PREFIX} # 生成客户端私钥 openssl genrsa -out ${CLIENT_PRIVATE_KEY_FILE_PATH} 2048 # 生成客户端CSR，根据自己需要自行修改subjects openssl req -new -key ${CLIENT_PRIVATE_KEY_FILE_PATH} -subj "/C=CN/ST=China/L=China/O=China/OU=China/CN=ClientCommonName" -out ${CLIENT_CSR_FILE_PATH} # CA通过CSR签发证书，根据需要自行修改有效期 openssl x509 -req -in ${CLIENT_CSR_FILE_PATH} -CA ${CA_CERTIFICATE_FILE_PATH} -CAkey ${CA_KEY_FILE_PATH} -CAcreateserial -out ${CLIENT_CERTIFICATE_FILE_PATH} -days 3650 # 把CA证书放进去 cat ${CA_CERTIFICATE_FILE_PATH} > ${PKI_PREFIX}/cacert.pem umask ${oldUmask} # 把${PKI_PREFIX}传送到客户端 # scp -r ${PKI_PREFIX} username@host:~/libvirt-server-pki |
完成上面的操作后，把整个${PKI_PRE […]