12
votes
2answers
403 views

Why multiple PTR records in DNS is not recommended?

I often read that using multiple PTR records in a DNS configuration is not recommended. However, the reasons are often vague, or not so obvious, naming: "it can cause problems", "can trigger ...
0
votes
1answer
39 views

Anyone knows what 173lo.com is - top entry on my BIND DNS server

Administer a DNS server running BIND DNS. We use dnstop to monitor queries. I have 173lo.com as top query with highest count and I'm wondering what the domain is, I can't find really useful ...
0
votes
3answers
2k views

DNS searching with wildcards?

Anything like nslookup or dig offer the ability to search based on something contained in the name ... like a wildcard search or something? I'm trying to make a little script with a GUI wrapper for ...
1
vote
1answer
352 views

Can IP tables allow specific DNS queries based on domain name?

I have iptables blocking all UDP traffic at the moment, however I want to allow only certain DNS queries to get through. Let's use google.com as an example. I am trying to use string matching to ...
3
votes
1answer
435 views

How to make BIND behave differently depending on query source?

How would one make BIND behave differently depending on the source IP address? For example, I want to use different forwarding DNS servers for different people on my network.
0
votes
1answer
774 views

how solve Recursive Queries error in intodns web site?

Please see the below link : intoDNS Web Site How can I solve Recursive Queries error! the entire error is below : Recursive Queries I could use the nameservers listed below to performe ...
0
votes
1answer
65 views

dns hierarchy not working !! Please help

(DNS1 ,WWW1, Gateway1) (sub-internal network) (DNS0,WWW0,Gateway0) (internal network) DNS1: 192.168.250.3/24 WWW1: 192.168.250.4/24 Gateway1: 192.168.250.1 /24 (internal) :: 192.168.0.150 to ...
0
votes
1answer
901 views

Restrict “Authority Section” on BIND

I just switched from Microsoft DNS to BIND 9.3 for a DNS acting as a Caching Nameserver. Previously when I used "dig" to perform a lookup...I just got the "QUESTION" & "ANSWER SECTION" with ...