1. DNS/oarc.net/txt

/trace /8.8.8.8 /edns /dnscache　/BIND /OpenDNS /DNSAdvantage

巨大な返答をどう扱うかというテストらしい。

-- ToshinoriMaeno 2017-07-13 23:16:48

2. BIND

$ dig rs.dns-oarc.net txt @127.0.0.1

; <<>> DiG 9.11.1 <<>> rs.dns-oarc.net txt @127.0.0.1
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 35218
;; flags: qr rd ra; QUERY: 1, ANSWER: 6, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
;; QUESTION SECTION:
;rs.dns-oarc.net.               IN      TXT

;; ANSWER SECTION:
rs.dns-oarc.net.        60      IN      CNAME   rst.x487.rs.dns-oarc.net.
rst.x487.rs.dns-oarc.net. 59    IN      CNAME   rst.x461.x487.rs.dns-oarc.net.
rst.x461.x487.rs.dns-oarc.net. 58 IN    CNAME   rst.x466.x461.x487.rs.dns-oarc.net.
rst.x466.x461.x487.rs.dns-oarc.net. 57 IN TXT   "Tested at 2017-07-13 11:19:15 UTC"
rst.x466.x461.x487.rs.dns-oarc.net. 57 IN TXT   "39.110.135.12 DNS reply size limit is at least 487"
rst.x466.x461.x487.rs.dns-oarc.net. 57 IN TXT   "39.110.135.12 sent EDNS buffer size 512"

;; Query time: 2704 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Thu Jul 13 20:19:15 JST 2017
;; MSG SIZE  rcvd: 274

3. unbound

/unbound 

$ dig rs.dns-oarc.net txt @127.0.0.3

; <<>> DiG 9.12.3 <<>> rs.dns-oarc.net txt @127.0.0.3
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 20807
;; flags: qr rd ra; QUERY: 1, ANSWER: 6, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 1220
;; QUESTION SECTION:
;rs.dns-oarc.net.               IN      TXT

;; ANSWER SECTION:
rs.dns-oarc.net.        515     IN      CNAME   rst.x1188.rs.dns-oarc.net.
rst.x1188.rs.dns-oarc.net. 516  IN      CNAME   rst.x1198.x1188.rs.dns-oarc.net.
rst.x1198.x1188.rs.dns-oarc.net. 516 IN CNAME   rst.x1169.x1198.x1188.rs.dns-oarc.net.
rst.x1169.x1198.x1188.rs.dns-oarc.net. 517 IN TXT "39.110.135.12 DNS reply size limit is at least 1198"
rst.x1169.x1198.x1188.rs.dns-oarc.net. 517 IN TXT "39.110.135.12 sent EDNS buffer size 1220"
rst.x1169.x1198.x1188.rs.dns-oarc.net. 517 IN TXT "Tested at 2019-02-28 14:25:05 UTC"

;; Query time: 0 msec
;; SERVER: 127.0.0.3#53(127.0.0.3)
;; WHEN: 木  2月 28 23:26:28 JST 2019
;; MSG SIZE  rcvd: 279

$ dig rs.dns-oarc.net txt @127.0.0.2 

; <<>> DiG 9.11.1 <<>> rs.dns-oarc.net txt @127.0.0.2
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 24546
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 1220
;; QUESTION SECTION:
;rs.dns-oarc.net.               IN      TXT

;; Query time: 0 msec
;; SERVER: 127.0.0.2#53(127.0.0.2)
;; WHEN: Thu Jul 13 20:21:08 JST 2017
;; MSG SIZE  rcvd: 44

4. kresd

/kresd

$ dig rs.dns-oarc.net txt @127.0.0.3 

; <<>> DiG 9.11.1 <<>> rs.dns-oarc.net txt @127.0.0.3
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 22446
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
; COOKIE: f6410df16acff348ba319827596757b159d6847ff55eb6be (good)
;; QUESTION SECTION:
;rs.dns-oarc.net.               IN      TXT

;; ANSWER SECTION:
rs.dns-oarc.net.        60      IN      CNAME   rst.x4090.rs.dns-oarc.net.

;; Query time: 818 msec
;; SERVER: 127.0.0.3#53(127.0.0.3)
;; WHEN: Thu Jul 13 20:21:22 JST 2017
;; MSG SIZE  rcvd: 96

$ dig rs.dns-oarc.net txt

; <<>> DiG 9.11.1 <<>> rs.dns-oarc.net txt
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 62843
;; flags: qr rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
; COOKIE: 61f760acb4047ab2e9bcb13a59686c832801eccd962ebab7 (good)
;; QUESTION SECTION:
;rs.dns-oarc.net.               IN      TXT

;; ANSWER SECTION:
rs.dns-oarc.net.        60      IN      CNAME   rst.x4090.rs.dns-oarc.net.
rst.x4090.rs.dns-oarc.net. 59   IN      CNAME   rst.x4058.x4090.rs.dns-oarc.net.

;; Query time: 923 msec
;; SERVER: 127.0.0.3#53(127.0.0.3)
;; WHEN: Fri Jul 14 16:02:27 JST 2017
;; MSG SIZE  rcvd: 130

$ dig rst.x4090.rs.dns-oarc.net. 

; <<>> DiG 9.11.1 <<>> rst.x4090.rs.dns-oarc.net.
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 42856
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
; COOKIE: b9a045904504ab24bcc8bc5f59686cd89650d42c9612502f (good)
;; QUESTION SECTION:
;rst.x4090.rs.dns-oarc.net.     IN      A

;; Query time: 415 msec
;; SERVER: 127.0.0.3#53(127.0.0.3)
;; WHEN: Fri Jul 14 16:03:52 JST 2017
;; MSG SIZE  rcvd: 82