itojun
a795b00db8
support EDNS0 (RFC2671) buffer size notification on DNS queries.
"options edns0" in /etc/resolv.conf will enable the behavior. no behavior change if you don't have the line. see resolv.conf(5) for more details. EDNS0 is useful for avoiding TCP DNS queries/replies on larger DNS responses. also, draft-ietf-dnsext-message-size-* plans to mandate EDNS0 support for DNS clients that support IPv6 transport. |
23 years ago | |
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src | support EDNS0 (RFC2671) buffer size notification on DNS queries. | 23 years ago |