if err != nil {
		return err
	}

	cfReader := bytes.NewReader(rd)

	cv := config.ServerConfigVersion{}
	if err = yaml.Unmarshal(rd, &cv); err != nil {
		return err
	}

	switch cv.Version {
	case "v1", "v2":
	default:
		return fmt.Errorf("unexpected version: %s", cv.Version)
	}

	cfCommon := config.ServerConfigCommon{}
	if err = yaml.Unmarshal(rd, &cfCommon); err != nil {

			} else {
				writer.WriteString("(NULL)")
			}
		case interface{ getInstance() *DB }:
			cv := v.getInstance()

			subdb := cv.Session(&Session{Logger: logger.Discard, DryRun: true}).getInstance()
			if cv.Statement.SQL.Len() > 0 {
				var (
					vars = subdb.Statement.Vars
					sql  = cv.Statement.SQL.String()
				)

				subdb.Statement.Vars = make([]interface{}, 0, len(vars))

				"application/rss+xml",
				"application/rtf",
				"application/rtx",
				"application/samlassertion+xml",
				"application/samlmetadata+xml",
				"application/sbml+xml",
				"application/scvp-cv-request",
				"application/scvp-cv-response",
				"application/scvp-vp-request",
				"application/scvp-vp-response",
				"application/sdp",
				"application/set-payment",
				"application/set-payment-initiation",

cust.dev.thingdust.io
cust.disrec.thingdust.io
cust.prod.thingdust.io
cust.retrosnub.co.uk
cust.testing.thingdust.io
custom.metacentrum.cz
customer.mythic-beasts.com
customer.speedpartner.de
cutegirl.jp
cv
cv.ua
cw
cx
cx.ua
cy
cy.eu.org
cymru
cyon.link
cyon.site
cyou
cz
cz.eu.org
cz.it
czeladz.pl
czest.pl
d.bg
d.gv.vc
d.se
daa.jp
dad