gitea-pages/admin-guide/operations/certificates.rst

Managing SSL certificates

We use DigiCert certificates.

Requesting certificates

First create a certificate signing request (CSR) like this, replacing $FQDN and $ALIASES:

cat >$FQDN.cnf <<EOF
FQDN = $FQDN
ORGNAME = Paul Scherrer Institut (PSI)

# subjectAltName entries: to add DNS aliases to the CSR, delete
# the '#' character in the ALTNAMES line, and change the subsequent
# 'DNS:' entries accordingly. Please note: all DNS names must
# resolve to the same IP address as the FQDN.
ALTNAMES = DNS:\$FQDN $ALIASES

# --- no modifications required below ---
[ req ]
default_bits = 2048
default_md = sha256
prompt = no
encrypt_key = no
distinguished_name = dn
req_extensions = req_ext

[ dn ]
C = CH
O = \$ORGNAME
CN = \$FQDN
OU = AWI

[ req_ext ]
subjectAltName = \$ALTNAMES

EOF

/usr/bin/openssl req -new -config $FQDN.cnf -keyout $FQDN.key -out $FQDN.csr

Finally, submit the CSR. Please note that the URL will work when accessed from PSI network (e.g. VPN).

DigiCert will send an email including instructions on how to download the certificate.

Renewing certificates

Using the same configuration file as above, generate a new private key and CSR, and submit the CSR as before.

Revoke certificates

If you would like to revoke a DigiCert certificate, please send an e-mail to pki@psi.ch