DNS Q&A Corner
Questions & Answers on DNS.
The answers are provided by world leading experts on DNS including Cricket Liu, the author of "DNS & BIND". Click on the appropriate question below to see its answer.
- A hidden primary master
- Can an MX record point to an alias?
- Can I add a CNAME record and an MX record for a single domain name?
- Can I disable caching without disabling recursion?
- Can I make the domain name of my zone an alias?
- Can I register my name server by more than one name, with a single IP address?
- Can I run a name server behind a fractional T1?
- Can I set a TTL on a specific record?
- Can I use a hidden primary?
- Can I use allow-query in a forward zone?
- Can I use an A record instead of an MX record?
- Can I use an alias for the name of my name server?
- Can I use forwarders with internal root name servers?
- Can I use views to separate my recursive name server and authoritative name servers?
- Can my BIND 4 name server transfer a zone from a BIND 8 name server?
- Can name servers ignore TTLs?
- Different domain names in the same reverse-mapping zone.
- DNS server behind a firewall
- DNS server performance is insufficient
- Do slaves only communicate with their masters
- Does dynamic update automatically add PTR reocrds?
- Does the Microsoft DNS Server support per-zone forwarding?
- Have you seen this INSIST error?
- How are the SOA record's fields used?
- How do I handle reverse mapping with virtual domain names?
- How do I restrict queries to internal hosts?
- How do I secure a Microsoft DNS Server?
- How do I set up rndc.conf and named.conf to allow remote control of my name server?
- How do I update multiple views?
- How do I use a load balancer with my name servers?
- How do people on the Internet find my name server?
- How does reverse mapping work?
- Is it acceptable to place a private address in a public name server?
- Is my configuration messed up?
- Is reverse mapping dangerous?
- My servers are on private IP addresses. How do I make them accessible to both internal and external clients?
- NOTIFY and the Microsoft DNS Server.
- Setting up a DNS server
- Turning round robin off selectively.
- What are a zone's NS records used for?
- What are reverse (PTR) records? Why do I need them?
- What are the pros and cons of running slaves versus caching-only name servers?
- What do I put in the MNAME field of the SOA record for 0.0.127.in-addr.arpa?
- What happens if one of my name servers is down?
- What is a lame delegation or lame response? How do I fix it?
- What version of BIND is the Microsoft DNS Server equivalent to?
- What's a good tool for stress testing a name server?
- What's the largest number I can use in an MX record?
- Where does this CNAME record belong?
- Why are there only 13 root name servers?
- Why are these name servers responding non-authoritatively?
- Why don't my $INCLUDE control statements work?
- Why is my BIND 9.2.0 name server slow at resolving queries?
- Why is this old address still being given out?
- Why isn't my logging statement working?
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