How to improve the security and performance of Nginx

Mainly shows how to configure x-frame-options, x-xss-protection, x-content-type-options, strict-transport-security, https and other security configurations in nginx.

nginx.conf configuration is as follows

# 不要将nginx版本号在错误页面或服务器头部中显示
server_tokens off;

#不允许页面从框架frame 或 iframe中显示，这样能避免clickjacking
# http://en.wikipedia.org/wiki/clickjacking
# 如果你允许[i]frames, 你能使用sameorigin 或在allow-from中设置你的允许的url
# https://developer.mozilla.org/en-us/docs/http/x-frame-options
add_header x-frame-options sameorigin;

#当你的网站是用户提供的内容比如博客论坛等，使用 x-content-type-options: nosniff 头部,
# 这是为了失效某些浏览器的内容类型探嗅
# https://www.owasp.org/index.php/list_of_useful_http_headers
# 当前支持ie > 8以上版本 http://blogs.msdn.com/b/ie/archive/2008/09/02/ie8-security-part-vi-beta-2-update.aspx
# http://msdn.microsoft.com/en-us/library/ie/gg622941(v=vs.85).aspx
#firefox https://bugzilla.mozilla.org/show_bug.cgi?id=471020
add_header x-content-type-options nosniff;

# 防止跨站脚本 cross-site scripting (xss) ，目前已经被大多数浏览器支持
#默认是激活的，如果被用户失效，可以使用这个配置激活。
# https://www.owasp.org/index.php/list_of_useful_http_headers
add_header x-xss-protection "1; mode=block";

#激活内容安全策略content security policy (csp) ，大部分浏览器支持
# 告诉浏览器只能从本域名和你显式指定的网址下载脚本。
# http://www.html5rocks.com/en/tutorials/security/content-security-policy/#inline-code-considered-harmful
add_header content-security-policy "default-src 'self'; script-src 'self' 'unsafe-inline' 'unsafe-eval' https://ssl.google-analytics.com https://assets.zendesk.com https://connect.facebook.net; img-src 'self' https://ssl.google-analytics.com https://s-static.ak.facebook.com https://assets.zendesk.com; style-src 'self' 'unsafe-inline' https://fonts.googleapis.com https://assets.zendesk.com; font-src 'self' https://themes.googleusercontent.com; frame-src https://assets.zendesk.com https://www.facebook.com https://s-static.ak.facebook.com https://tautt.zendesk.com; object-src 'none'";

server {
listen 443 ssl default deferred;
server_name .forgott.com;

ssl_certificate /etc/nginx/ssl/star_forgott_com.crt;
ssl_certificate_key /etc/nginx/ssl/star_forgott_com.key;

#激活会话重续提高https性能
# http://vincent.bernat.im/en/blog/2011-ssl-session-reuse-rfc5077.html
ssl_session_cache shared:ssl:50m;
ssl_session_timeout 5m;

# diffie-hellman parameter for dhe ciphersuites, recommended 2048 bits
ssl_dhparam /etc/nginx/ssl/dhparam.pem;

#激活服务器端保护免于beast 攻击
# http://blog.ivanristic.com/2013/09/is-beast-still-a-threat.html
ssl_prefer_server_ciphers on;
# 失效 sslv3(自nginx 0.8.19默认激活) http://en.wikipedia.org/wiki/secure_sockets_layer#ssl_3.0
ssl_protocols tlsv1 tlsv1.1 tlsv1.2;
# 为保密性和相容性选择密码
# http://blog.ivanristic.com/2013/08/configuring-apache-nginx-and-openssl-for-forward-secrecy.html
ssl_ciphers "ecdhe-rsa-aes256-gcm-sha384:ecdhe-rsa-aes128-gcm-sha256:dhe-rsa-aes256-gcm-sha384:dhe-rsa-aes128-gcm-sha256:ecdhe-rsa-aes256-sha384:ecdhe-rsa-aes128-sha256:ecdhe-rsa-aes256-sha:ecdhe-rsa-aes128-sha:dhe-rsa-aes256-sha256:dhe-rsa-aes128-sha256:dhe-rsa-aes256-sha:dhe-rsa-aes128-sha:ecdhe-rsa-des-cbc3-sha:edh-rsa-des-cbc3-sha:aes256-gcm-sha384:aes128-gcm-sha256:aes256-sha256:aes128-sha256:aes256-sha:aes128-sha:des-cbc3-sha:high:!anull:!enull:!export:!des:!md5:!psk:!rc4";

# 激活ocsp stapling （一种机制：一个网站可以保护隐私可扩展的方式传达的证书撤销信息给访问者）mechanism by which a site can convey certificate revocation information to visitors in a privacy-preserving, scalable manner)
# http://blog.mozilla.org/security/2013/07/29/ocsp-stapling-in-firefox/
resolver 8.8.8.8;
ssl_stapling on;
ssl_trusted_certificate /etc/nginx/ssl/star_forgott_com.crt;

# 配置激活hsts(http strict transport security) https://developer.mozilla.org/en-us/docs/security/http_strict_transport_security
#避免ssl stripping https://en.wikipedia.org/wiki/ssl_stripping#ssl_stripping
add_header strict-transport-security "max-age=31536000; includesubdomains;";

# ... the rest of your configuration
}

# redirect all http traffic to https
server {
listen 80;
server_name .forgott.com;
return 301 https://$host$request_uri;
}

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