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mtigas/nginx.conf

Last active March 20, 2025 14:14
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Nginx configuration for securedrop.propublica.org. (Based on Ubuntu 13.10 / Nginx 1.4.1 default config.)
Raw
nginx.conf
# This configuration file is provided on an "as is" basis,
# with no warranties or representations, and any use of it
# is at the user's own risk.
#
# You will need to edit domain name information, IP addresses for
# redirection (at the bottom), SSL certificate and key paths, and
# the "Public-Key-Pins" header. Search for any instance of "TODO".
user www-data;
worker_processes 4;
pid /run/nginx.pid;
events {
worker_connections 768;
}
http {
sendfile on;
tcp_nopush on;
tcp_nodelay on;
keepalive_timeout 65;
types_hash_max_size 2048;
include /etc/nginx/mime.types;
default_type application/octet-stream;
# Turn off logs
access_log off;
error_log off;
gzip on;
gzip_disable "msie6";
#####
# SSL host
#####
server {
listen 443 ssl;
server_name securedrop.example.com; # TODO
# SEE THESE LINKS REGARDING HOW TO CONFIGURE THIS HEADER
# http://tools.ietf.org/html/draft-ietf-websec-key-pinning-09
# http://blog.stalkr.net/2011/08/hsts-preloading-public-key-pinning-and.html
# NOTE: only valid on SSL version of domain
add_header "Public-Key-Pins" "TODO";
add_header "Strict-Transport-Security" "max-age=31536000";
add_header "Cache-Control" "max-age=0, no-cache, no-store, must-revalidate";
add_header "Pragma" "no-cache";
add_header "Expires" "-1";
add_header "X-Frame-Options" "DENY";
add_header "X-XSS-Protection" "1; mode=block";
add_header "X-Content-Type-Options" "nosniff";
add_header "X-Download-Options" "noopen";
add_header "X-Permitted-Cross-Domain-Policies" "master-only";
add_header "Content-Security-Policy" "default-src 'self'";
add_header "X-Content-Security-Policy" "default-src 'self'";
server_tokens off;
ssl on;
ssl_session_cache shared:SSL:5m;
ssl_session_timeout 5m;
ssl_certificate_key /path/to/ssl_certificate.key; # TODO
ssl_certificate /path/to/ssl_certificate.crt; # TODO
ssl_stapling on;
ssl_trusted_certificate /path/to/ssl_certificate.crt; # TODO
###################
# Disable SSLv2 by not including it in this list.
# Add SSLv3 back in if you need to support IE6 (or older) clients
###################
ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
###################
# this list is basically a manually-defined, filtered/reordered list
# based on the recommendations from:
# https://hynek.me/articles/hardening-your-web-servers-ssl-ciphers/
# http://unhandledexpression.com/2013/01/25/5-easy-tips-to-accelerate-ssl/
#
# Modifications include removing ECDSA, disabling almost all non-ephemeral
# key exchange ciphersuites to strongly prefer perfect forward secrecy
# (and only leave alternative as a fallback), removing fallbacks that
# wouldn't realistically happen in real browsers.
#
# We end up with a list of 12 ciphersuites: 4 TLS 1.2 ciphersuites, 4
# fallbacks with PFS, then 4 weaker fallbacks for compatibility.
# The low number of suites improves TLS handshake speed.
#
# Expanded list: https://gist.github.com/mtigas/8591092/raw/gistfile1.txt
#
# If you don't need to support IE WinXP (or older) clients you can remove
# the weak fallbacks after DHE-RSA-AES128-SHA to force PFS ciphersuites
# for all clients and protect against downgrade attacks.
#
# For performance, AES256 ciphersuites can be removed, too. (Leaves 4 or 7
# ciphersuites.)
###################
ssl_ciphers ECDHE-RSA-AES256-GCM-SHA384:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-RSA-AES256-SHA384:ECDHE-RSA-AES128-SHA256:ECDHE-RSA-AES256-SHA:DHE-RSA-AES256-SHA:ECDHE-RSA-AES128-SHA:DHE-RSA-AES128-SHA:ECDH-RSA-AES256-SHA:ECDH-RSA-AES128-SHA:AES128-SHA:DES-CBC3-SHA;
ssl_prefer_server_ciphers on;
root /home/ubuntu/html; # TODO
index index.html index.htm;
charset utf-8;
}
#####
# domain name redirect virtualhost
#####
server {
# Redirect HTTP access to the HTTPS instance.
listen 80;
server_name securedrop.example.com; # TODO
rewrite ^/(.*) https://securedrop.example.com/$1 permanent; # TODO
add_header "Strict-Transport-Security" "max-age=31536000";
add_header "Cache-Control" "max-age=0, no-cache, no-store, must-revalidate";
add_header "Pragma" "no-cache";
add_header "Expires" "-1";
add_header "X-Frame-Options" "DENY";
add_header "X-XSS-Protection" "1; mode=block";
add_header "X-Content-Type-Options" "nosniff";
add_header "X-Download-Options" "noopen";
add_header "X-Permitted-Cross-Domain-Policies" "master-only";
add_header "Content-Security-Policy" "default-src 'self'";
add_header "X-Content-Security-Policy" "default-src 'self'";
server_tokens off;
}
#####
# other virtualhosts
#####
server {
# Redirect any other plain HTTP access to this server. (Same as above, but
# without the Strict-Transport-Security header.)
listen 80;
# List ALL IPs/hostnames that can get to this machine.
server_name 127.0.0.1 123.123.123.123; # TODO
rewrite ^/(.*) https://securedrop.example.com/$1 permanent; # TODO
add_header "Cache-Control" "max-age=0, no-cache, no-store, must-revalidate";
add_header "Pragma" "no-cache";
add_header "Expires" "-1";
add_header "X-Frame-Options" "DENY";
add_header "X-XSS-Protection" "1; mode=block";
add_header "X-Content-Type-Options" "nosniff";
add_header "X-Download-Options" "noopen";
add_header "X-Permitted-Cross-Domain-Policies" "master-only";
add_header "Content-Security-Policy" "default-src 'self'";
add_header "X-Content-Security-Policy" "default-src 'self'";
server_tokens off;
}
}
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