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adjust positive and negative TTL values

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NXDOMAIN shouldn't really impact normal usage, but waiting an hour for a new configuration record to show up is more acceptable.

Let resolvers cache the TXT records for a short time to help with tight checking loops.
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tcely 2019-03-04 07:15:32 -05:00 committed by GitHub
parent d2bc627429
commit dcee58fdd3
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1 changed files with 2 additions and 2 deletions
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dns.go
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@ -55,7 +55,7 @@ func (d *DNSServer) ParseRecords(config DNSConfig) {
// Create serial
serial := time.Now().Format("2006010215")
// Add SOA
SOAstring := fmt.Sprintf("%s. SOA %s. %s. %s 28800 7200 604800 86400", strings.ToLower(config.General.Domain), strings.ToLower(config.General.Nsname), strings.ToLower(config.General.Nsadmin), serial)
SOAstring := fmt.Sprintf("%s. SOA %s. %s. %s 28800 7200 604800 3600", strings.ToLower(config.General.Domain), strings.ToLower(config.General.Nsname), strings.ToLower(config.General.Nsadmin), serial)
soarr, err := dns.NewRR(SOAstring)
if err != nil {
log.WithFields(log.Fields{"error": err.Error(), "soa": SOAstring}).Error("Error while adding SOA record")
@ -188,7 +188,7 @@ func (d *DNSServer) answerTXT(q dns.Question) ([]dns.RR, error) {
for _, v := range atxt {
if len(v) > 0 {
r := new(dns.TXT)
r.Hdr = dns.RR_Header{Name: q.Name, Rrtype: dns.TypeTXT, Class: dns.ClassINET, Ttl: 1}
r.Hdr = dns.RR_Header{Name: q.Name, Rrtype: dns.TypeTXT, Class: dns.ClassINET, Ttl: 10}
r.Txt = append(r.Txt, v)
ra = append(ra, r)
}