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hardening(angie): default_server needs a cert on its 443 listener or 'angie -t' fails with 'no ssl_certificate defined' — generate a one-time self-signed dummy (CN=bootstrap-default, 10y) in /etc/angie/ssl so unknown-SNI clients handshake then get 444; mark listen 443 as ssl explicitly

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mk 2026-07-28 06:55:31 +03:00
parent 435d66aad2
commit efdf056352
1 changed files with 13 additions and 2 deletions
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15
modules/50-hardening.sh
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@ -322,14 +322,25 @@ EOF
# ── default catch-all server: unmatched Host -> drop ── # ── default catch-all server: unmatched Host -> drop ──
if [[ ! -f "$d/_on/00-default.conf" ]]; then if [[ ! -f "$d/_on/00-default.conf" ]]; then
# The default_server also listens on 443 to catch unknown-SNI TLS clients.
# It needs SOME cert to complete the handshake before `return 444` drops them;
# angie won't start a 443 listener without ssl_certificate. Generate a self-signed
# dummy once (CN='bootstrap-default', 10y) so unknown-SNI clients get dropped
# after connecting while real vhosts are picked by SNI.
if [[ ! -f "$d/ssl/bootstrap-default.crt" ]]; then
sudo_ install -d -m 0755 "$d/ssl"
sudo_ openssl req -x509 -newkey rsa:2048 -nodes -days 3650 -keyout "$d/ssl/bootstrap-default.key" -out "$d/ssl/bootstrap-default.crt" -subj "/CN=bootstrap-default/O=bootstrap" 2>/dev/null
fi
sudo_ tee "$d/_on/00-default.conf" >/dev/null <<'EOF' sudo_ tee "$d/_on/00-default.conf" >/dev/null <<'EOF'
# default_server: drop requests that match no enabled host (drive-by scanners, bare-IP) # default_server: drop requests that match no enabled host (drive-by scanners, bare-IP)
server { server {
listen 80 default_server; listen 80 default_server;
listen [::]:80 default_server; listen [::]:80 default_server;
listen 443 default_server; listen 443 ssl default_server;
listen [::]:443 default_server; listen [::]:443 ssl default_server;
server_name _; server_name _;
ssl_certificate /etc/angie/ssl/bootstrap-default.crt;
ssl_certificate_key /etc/angie/ssl/bootstrap-default.key;
return 444; return 444;
} }
EOF EOF