mirror of
https://github.com/mail-in-a-box/mailinabox.git
synced 2024-12-23 07:27:05 +00:00
53 lines
1.8 KiB
Bash
Executable File
53 lines
1.8 KiB
Bash
Executable File
#!/bin/bash
|
|
#
|
|
# SSL Certificate
|
|
# ---------------
|
|
|
|
# Create a self-signed SSL certificate if one has not yet been created.
|
|
#
|
|
# The certificate is for PRIMARY_HOSTNAME specifically and is used for:
|
|
#
|
|
# * IMAP
|
|
# * SMTP submission (port 587) and opportunistic TLS (when on the receiving end)
|
|
# * the DNSSEC DANE TLSA record for SMTP
|
|
# * HTTPS (for PRIMARY_HOSTNAME only)
|
|
#
|
|
# When other domains besides PRIMARY_HOSTNAME are served over HTTPS,
|
|
# we generate a domain-specific self-signed certificate in the management
|
|
# daemon (web_update.py) as needed.
|
|
|
|
source setup/functions.sh # load our functions
|
|
source /etc/mailinabox.conf # load global vars
|
|
|
|
apt_install openssl
|
|
|
|
mkdir -p $STORAGE_ROOT/ssl
|
|
# Generate a new private key.
|
|
# Set the umask so the key file is not world-readable.
|
|
if [ ! -f $STORAGE_ROOT/ssl/ssl_private_key.pem ]; then
|
|
(umask 077; hide_output \
|
|
openssl genrsa -out $STORAGE_ROOT/ssl/ssl_private_key.pem 2048)
|
|
fi
|
|
|
|
# Generate a certificate signing request.
|
|
if [ ! -f $STORAGE_ROOT/ssl/ssl_cert_sign_req.csr ]; then
|
|
hide_output \
|
|
openssl req -new -key $STORAGE_ROOT/ssl/ssl_private_key.pem -out $STORAGE_ROOT/ssl/ssl_cert_sign_req.csr \
|
|
-sha256 -subj "/C=$CSR_COUNTRY/ST=/L=/O=/CN=$PRIMARY_HOSTNAME"
|
|
fi
|
|
|
|
# Generate a SSL certificate by self-signing.
|
|
if [ ! -f $STORAGE_ROOT/ssl/ssl_certificate.pem ]; then
|
|
hide_output \
|
|
openssl x509 -req -days 365 \
|
|
-in $STORAGE_ROOT/ssl/ssl_cert_sign_req.csr -signkey $STORAGE_ROOT/ssl/ssl_private_key.pem -out $STORAGE_ROOT/ssl/ssl_certificate.pem
|
|
fi
|
|
|
|
# For nginx and postfix, pre-generate some Diffie-Hellman cipher bits which is
|
|
# used when a Diffie-Hellman cipher is selected during TLS negotiation. Diffie-Hellman
|
|
# provides Perfect Forward Secrecy. openssl's default is 1024 bits, but we'll
|
|
# create 2048.
|
|
if [ ! -f $STORAGE_ROOT/ssl/dh2048.pem ]; then
|
|
openssl dhparam -out $STORAGE_ROOT/ssl/dh2048.pem 2048
|
|
fi
|