As mentioned in the comments, you will need to use A records instead of CNAME records. CNAME records will not be able to point at an IP Address. The key to making each of the sites to work is to specify ServerName correctly for each virtual server in your Apache config.
The best is subjective: RFC1912 suggests 2-4 weeks. This is how long a secondary/slave nameserver will wait before considering its DNS data stale if it can’t reach the primary name server. we normally use 2419200 which is 4 weeks..
Hostnames may only contain [0-9], [a-z], -, so the underscore is not valid in a hostname. Note that a TXT record is not a hostname, and this restriction doesn’t apply for it. (- may not be used as the first character either, so mail.-domainkey.our.dom wouldn’t be valid.) https://en.wikipedia.org/wiki/Hostname#Restrictions_on_valid_hostnames When a CNAME is used as a … Read more
That SPF record looks correct to me, mine is quite similar to that. Where do you get the SPF error? I checked the domain from my SPF client and it says it’s okay. You can always check the syntax here http://www.openspf.org/SPF_Record_Syntax and generate a new header here http://old.openspf.org/wizard.html?mydomain=example.com&submit=Go%21 $ spfquery -i 50.22.72.198 -m test@wordswithfriends.net -h … Read more
Reverse DNS is a mapping from an IP address to a DNS name. So it’s like DNS, but backwards. If you are assigned IP addresses you have to setup reverse DNS to tell the world what the addresses are used for. In practice, if you want to know what system is at 216.239.32.10 you design … Read more
The output of dig any joshuafox.com shows that the TTL for your domain is 604800 seconds or one week. That is an unusually high value and you might want to change it. Expect the propagation of your new configuration to be fully propagated by the end of the week.
DNS is a magical thing. With enough control over a client PC, you can make right.com into wrong.com and viceversa.io. Jump onto a test client PC and muck with its DNS resolution by either changing the host file on that client, or you can do something a bit more complex and give that host a … Read more
Looks like Google will be a good fit when you want a DNS that conforms to RFC 1034, and when you aren’t all tinfoil-hat about Google. OpenDNS hijacks your unresolved DNS queries and redirects you to advertising. This breaks the NXDOMAIN response. However, their claim to fame is that they provide user-definable filtering at the … Read more
To add a PTR record in the GoDaddy DNS Manager, you need to do the following: In the Zone Field Editor go down to the TXT(text) Zone Click Add SPF Record A window will open with 4 tabs (Inbound, Outbound, The well hidden ‘PTR’ and Outsourced) Go to the PTR tab Check Include PTR and … Read more
Netstat almost certainly won’t be able to help you. Netstat displays open sockets and active connections at the moment you execute the program. A DNS request will happen entirely too quickly for you to catch it because it’ll be gone and done in less time than it takes to type out the command parameters. Moreover, … Read more