[Auto-Sync] Atualização das configurações em srvproxy001.itguys.com.br - 2025-09-27 22:20:34

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srvproxy001.itguys.com.br 2025-09-27 22:20:34 -03:00
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# ==============================================================================
# ARQUIVO: /etc/nginx/sites-available/ns2.itguys.com.br.conf
# AUTOR: Gemini (Especialista NGINX)
# DATA: 27/09/2025 (Consolidado e otimizado)
#
# CONTEXTO:
# Configuração de Proxy Reverso OTIMIZADA e SEGURA para Technitium DNS Server (ns2).
# Todas as configurações, incluindo SSL/TLS e segurança, foram declaradas
# diretamente neste arquivo, sem o uso de snippets.
#
# UPSTREAM: https://172.16.254.251:53443 (Observar 'proxy_ssl_verify off')
# ==============================================================================
# Define o nosso servidor Technitium como um "upstream".
# O NGINX irá se conectar a este backend usando HTTPS.
upstream technitium_backend_ns2 {
server 172.16.254.251:53443;
keepalive 64;
}
# ------------------------------------------------------------------------------
# BLOCO 1: Redirecionamento de HTTP (porta 80) para HTTPS
# ------------------------------------------------------------------------------
server {
listen 80;
listen [::]:80;
server_name ns2.itguys.com.br;
# Aplica o rate limiting básico (zona global_limit deve estar em nginx.conf)
limit_req zone=global_limit burst=20 nodelay;
location /.well-known/acme-challenge/ {
root /var/www/html;
}
location / {
return 301 https://$host$request_uri;
}
}
# ------------------------------------------------------------------------------
# BLOCO 2: Servidor Principal - Proxy Reverso para Technitium DNS (HTTPS)
# ------------------------------------------------------------------------------
server {
listen 443 ssl http2;
listen [::]:443 ssl http2;
server_name ns2.itguys.com.br;
# ============================================================================
# LOGS, SEGURANÇA BÁSICA E RATE LIMITING
# ============================================================================
client_max_body_size 5M;
access_log /var/log/nginx/ns2.itguys.com.br.access.log combined;
error_log /var/log/nginx/ns2.itguys.com.br.error.log warn;
# Log para acessos bloqueados por bots (depende de $is_bad_bot em nginx.conf)
access_log /var/log/nginx/ns2.itguys.com.br.bad-bot.log suspicious_bot if=$is_bad_bot;
# Módulo de Segurança Global (Bloqueia bots e URIs suspeitas de nginx.conf)
if ($block_request) {
return 404;
}
# Rate Limiting (zona global_limit deve estar em nginx.conf)
limit_req zone=global_limit burst=50 nodelay;
# --- RESTRIÇÃO DE ACESSO ---
# **INCLUIR REGRAS 'allow' e 'deny' AQUI**
# Exemplo:
# allow 172.16.0.0/16;
# deny all;
# ============================================================================
# CONFIGURAÇÕES DE SSL/TLS (Hardening)
# ============================================================================
#ssl_certificate /etc/letsencrypt/live/ns2.itguys.com.br/fullchain.pem;
#ssl_certificate_key /etc/letsencrypt/live/ns2.itguys.com.br/privkey.pem;
#ssl_protocols TLSv1.3 TLSv1.2;
ssl_ciphers 'TLS_AES_128_GCM_SHA256:TLS_AES_256_GCM_SHA384:TLS_CHACHA20_POLY1305_SHA256:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305';
ssl_prefer_server_ciphers on;
ssl_ecdh_curve X25519:secp256r1:secp384r1;
ssl_session_timeout 1d;
ssl_dhparam /etc/nginx/dhparam.pem;
ssl_session_tickets off;
# OCSP Stapling
ssl_stapling off;
ssl_stapling_verify off;
ssl_trusted_certificate /etc/letsencrypt/live/ns2.itguys.com.br/fullchain.pem;
resolver 8.8.8.8 8.8.4.4 valid=300s;
resolver_timeout 5s;
# ============================================================================
# HEADERS DE SEGURANÇA
# ============================================================================
add_header Strict-Transport-Security "max-age=63072000; includeSubDomains; preload" always;
add_header X-Content-Type-Options "nosniff" always;
add_header X-Frame-Options "SAMEORIGIN" always;
add_header Referrer-Policy "no-referrer" always;
add_header Permissions-Policy "geolocation=(), microphone=(), camera=(), payment=()" always;
add_header Content-Security-Policy "default-src 'self'; script-src 'self' 'unsafe-inline' 'unsafe-eval'; style-src 'self' 'unsafe-inline'; img-src 'self' data:; connect-src 'self' wss:; font-src 'self'; object-src 'none';" always;
# ============================================================================
# COMPRESSÃO
# ============================================================================
brotli on;
brotli_comp_level 6;
brotli_min_length 256;
brotli_types text/plain text/css application/json application/javascript text/xml application/xml application/xml+rss text/javascript image/svg+xml;
gzip on;
gzip_vary on;
gzip_proxied any;
gzip_comp_level 6;
gzip_min_length 256;
gzip_types text/plain text/css application/json application/javascript text/xml application/xml application/xml+rss text/javascript image/svg+xml;
# ============================================================================
# PARÂMETROS GLOBAIS DE PROXY
# ============================================================================
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Proto $scheme;
proxy_set_header X-Forwarded-Host $host;
proxy_set_header X-Forwarded-Port $server_port;
proxy_set_header User-Agent $http_user_agent;
proxy_http_version 1.1;
proxy_connect_timeout 60s;
proxy_read_timeout 90s;
proxy_send_timeout 90s;
proxy_buffering off;
proxy_request_buffering off;
# IMPORTANTE: Desabilita a verificação de certificado para o backend HTTPS
proxy_ssl_verify off;
# ----------------------------------------------------------------------------
# REGRAS DE ROTEAMENTO (LOCATIONS)
# ----------------------------------------------------------------------------
# 1. Rota para assets estáticos (CACHE AGRESSIVO)
location ~* \.(?:css|js|mjs|svg|gif|png|jpg|jpeg|ico|wasm|woff2?|ttf|eot)$ {
# Reutiliza a mesma zona de cache do ns1
proxy_cache technitium_cache;
proxy_cache_valid 200 7d;
proxy_cache_use_stale error timeout http_500 http_502 http_503 http_504;
add_header Cache-Control "public, max-age=604800, immutable";
add_header X-Proxy-Cache $upstream_cache_status;
proxy_pass https://technitium_backend_ns2;
}
# 2. Rota principal para a aplicação (SEM CACHE, COM WEBSOCKETS)
location / {
# Configurações de WebSockets
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection "upgrade";
proxy_pass https://technitium_backend_ns2;
}
# --- Páginas de Erro Personalizadas ---
# Incluir aqui as diretivas de error_page, se necessário.
}