A tiny http daemon that answers acme challenges and redirects everything else to https.
A minimal configuration looks like this:
# cat /etc/acme-redirect.d/example.com.conf
[cert]
name = "example.com"
dns_names = [
"example.com",
"www.example.com",
]
exec = [
"systemctl reload nginx",
]You don't need to edit anything else. Start the acme-redirect daemon:
systemctl enable --now acme-redirectEnsure the service is running correctly and the redirect works as expected. Ensure your A and AAAA records point to the right server and check everything is working correctly by fetching a random proof from our local daemon.
acme-redirect checkIf OK is displayed for every name you can request a real certificates:
acme-redirect renewIf this succeeded you should setup automatic renew:
systemctl enable --now acme-redirect-renew.timerThe certificate is located here:
/var/lib/acme-redirect/live/example.com/fullchain
/var/lib/acme-redirect/live/example.com/privkey
Example configuration looks like this:
server {
listen 443 ssl http2;
listen [::]:443 ssl http2;
ssl_certificate /var/lib/acme-redirect/live/example.com/fullchain;
ssl_certificate_key /var/lib/acme-redirect/live/example.com/privkey;
ssl_session_timeout 1d;
ssl_session_cache shared:MozSSL:10m; # about 40000 sessions
ssl_session_tickets off;
ssl_protocols TLSv1.2 TLSv1.3;
ssl_ciphers 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:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384;
ssl_prefer_server_ciphers off;
add_header Strict-Transport-Security "max-age=63072000" always;
ssl_stapling on;
ssl_stapling_verify on;
ssl_trusted_certificate /var/lib/acme-redirect/live/example.com/chain;
resolver 127.0.0.1;
# ...
}<VirtualHost *:443>
SSLEngine on
SSLCertificateFile /var/lib/acme-redirect/live/example.com/fullchain
SSLCertificateKeyFile /var/lib/acme-redirect/live/example.com/privkey
Protocols h2 http/1.1
Header always set Strict-Transport-Security "max-age=63072000"
</VirtualHost>
SSLProtocol all -SSLv3 -TLSv1 -TLSv1.1
SSLCipherSuite 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:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384
SSLHonorCipherOrder off
SSLSessionTickets off
SSLUseStapling On
SSLStaplingCache "shmcb:logs/ssl_stapling(32768)"server.modules += ("mod_openssl")
$SERVER["socket"] == "0.0.0.0:443" {
ssl.engine = "enable"
ssl.privkey= "/var/lib/acme-redirect/live/example.com/privkey"
ssl.pemfile= "/var/lib/acme-redirect/live/example.com/fullchain"
ssl.openssl.ssl-conf-cmd = ("MinProtocol" => "TLSv1.2")
#ssl.ca-file= "/var/lib/acme-redirect/live/example.com/chain" # (needed in $SERVER["socket"] before lighttpd 1.4.56 if ssl.pemfile in $HTTP["host"])
}
pacman -S acme-redirectCurrently supported: bookworm
apt install debian-keyring
gpg --export --keyring /usr/share/keyrings/debian-maintainers.gpg [email protected] | tee /etc/apt/trusted.gpg.d/apt-vulns-xyz.gpg > /dev/null
echo deb https://apt.vulns.xyz stable main >> /etc/apt/sources.list.d/apt-vulns-xyz.list
apt update && apt install acme-redirectgit clone https://github.com/kpcyrd/acme-redirect.git
cd acme-redirect/
cargo build --release
install -Dm 755 -t /usr/bin \
target/release/acme-redirect
install -Dm 644 contrib/confs/acme-redirect.conf -t /etc
install -Dm 644 contrib/confs/certs.d/example.com.conf /etc/acme-redirect.d/example.com.conf.sample
install -Dm 644 -t /etc/systemd/system \
contrib/systemd/acme-redirect-renew.service \
contrib/systemd/acme-redirect-renew.timer \
contrib/systemd/acme-redirect.service
install -Dm 644 contrib/systemd/acme-redirect.sysusers /etc/sysusers.d/acme-redirect.conf
install -Dm 644 contrib/systemd/acme-redirect.tmpfiles /etc/tmpfiles.d/acme-redirect.conf
sudo systemd-sysusers
sudo systemd-tmpfiles --createI'm using this in production since summer 2020 (northern hemisphere, around May).
mkdir -vp tmp/challs
export ACME_CONFIG="$PWD/contrib/confs/acme-redirect.conf"
export ACME_CONFIG_DIR="$PWD/contrib/confs/certs.d/"
export ACME_CHALL_DIR="$PWD/tmp/"
export ACME_DATA_DIR="$PWD/tmp/"
cargo run -- status
cargo run -- daemon -B '[::]:8080' -vacme-redirect uses setuid and chroot to drop privileges before accepting requests. This can be inspected with boxxy.
mkdir -vp tmp/web
sudo chown root. tmp/web
cargo build --examples
(cd tmp/web && sudo ../../target/debug/examples/boxxy)GPLv3+
