nslookup/dig/host commands querying local bind takes more time to resolve domain names with edns?
Issue
- nslookup/dig/host commands querying local bind takes more time to resolve domain names with edns?
[root@test ]$ tshark -r client.pcap -Y 'ip.addr == XX.XX.XX.41 && udp.port == 53'
329 74.467439 XX.XX.XX.41 → XX.XX.XX3.100 DNS 91 Standard query 0x7f0e A example.com.com OPT
333 76.467732 XX.XX.XX.41 → XX.XX.XX1.100 DNS 91 Standard query 0x2e6a A example.com.com OPT
340 78.468044 XX.XX.XX.41 → XX.XX.XX2.100 DNS 91 Standard query 0xae18 A example.com.com OPT
342 80.468224 XX.XX.XX.41 → XX.XX.XX4.100 DNS 91 Standard query 0x1fcb A example.com.com OPT
399 92.873695 XX.XX.XX.41 → XX.XX.XX3.100 DNS 91 Standard query 0x6073 A example.com.com OPT
416 94.874021 XX.XX.XX.41 → XX.XX.XX1.100 DNS 80 Standard query 0xc8ed A example.com.com <<<
Environment
- Red Hat Enterprise Linux 6
- Latest bind
- Bind configured to forward dns server not supporting edns
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