# Pass a file with `-f`. Use `-Y EXTERNAL` for server configs.
ldapmodify -H ldapi:/// -Y EXTERNAL -f change.ldif
# Or bind using an admin account with `-W -D <dn>`
ldapmodify -H ldapi:/// -f change.ldif -D cn=admin,dc=devdungeon,dc=com -W

# Pass the ldif directly
ldapmodify -H ldapi:/// -Y EXTERNAL << EOF
dn: cn=config
changetype: modify
replace: olcTLSCertificateFile
olcTLSCertificateFile: /etc/letsencrypt/live/ldap.devdungeon.com/cert.pem
-
replace: olcTLSCertificateKeyFile
olcTLSCertificateKeyFile: /etc/letsencrypt/live/ldap.devdungeon.com/privkey.pem

EOF