Tweaks to try and make staging tests more robust

test/test-config/getssl-staging-dns01.cfg

@@ -6,12 +6,12 @@ VALIDATE_VIA_DNS=true
 DNS_ADD_COMMAND="/getssl/dns_scripts/dns_add_duckdns"
 DNS_DEL_COMMAND="/getssl/dns_scripts/dns_del_duckdns"
 PUBLIC_DNS_SERVER=1.1.1.1
-CHECK_ALL_AUTH_DNS="false"
+CHECK_ALL_AUTH_DNS="true"
+CHECK_PUBLIC_DNS_SERVER="true"
 DNS_EXTRA_WAIT=120
 
-# Speed up the test by reducing the number or retries and the wait between retries.
-DNS_WAIT=2
-DNS_WAIT_COUNT=11
+# Speed up the test by reducing the number or retries and retrying DNS_ADD after 10 failures
+DNS_WAIT_COUNT=20
 DNS_WAIT_RETRY_ADD="true"
 
 ACCOUNT_KEY_TYPE="rsa"