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security: add security headers to nginx config to prevent XSS, clickjacking and enforce HTTPS

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Greg 2025-07-18 23:05:44 +02:00
parent 218a774e1f
commit e2aeca1de7
1 changed files with 22 additions and 0 deletions
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22
nginx.conf
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@ -5,6 +5,28 @@ server {
root /usr/share/nginx/html;
index index.html index.htm;
# Security Headers
# Content Security Policy (CSP) - Prevents XSS attacks
add_header Content-Security-Policy "default-src 'self'; script-src 'self' 'unsafe-inline'; style-src 'self' 'unsafe-inline'; img-src 'self' data: https:; font-src 'self'; connect-src 'self'; frame-ancestors 'none';" always;
# Strict Transport Security (HSTS) - Forces HTTPS
add_header Strict-Transport-Security "max-age=31536000; includeSubDomains; preload" always;
# X-Frame-Options - Prevents clickjacking
add_header X-Frame-Options "DENY" always;
# X-Content-Type-Options - Prevents MIME type sniffing
add_header X-Content-Type-Options "nosniff" always;
# Referrer Policy - Controls referrer information
add_header Referrer-Policy "strict-origin-when-cross-origin" always;
# X-XSS-Protection - Additional XSS protection (legacy but still useful)
add_header X-XSS-Protection "1; mode=block" always;
# Permissions Policy - Controls browser features
add_header Permissions-Policy "geolocation=(), microphone=(), camera=()" always;
location / {
try_files $uri $uri/ /index.html;
}