/local/jmw ==> nslookup Default Server: citron.cs.clemson.edu Address: 130.127.48.1 > set all Default Server: citron.cs.clemson.edu Address: 130.127.48.1 Set options: nodebug defname search recurse nod2 novc noignoretc port=53 querytype=A class=IN timeout=5 retry=4 root=ns.nic.ddn.mil. domain=cs.clemson.edu srchlist=cs.clemson.edu/clemson.edu ================== > set querytype=HINFO > jmw Server: citron.cs.clemson.edu Address: 130.127.48.1 jmw.cs.clemson.edu CPU = SUN-4/75 OS = SunOS4.1.1 ========================== > set q=NS > cs.unc.edu Server: citron.cs.clemson.edu Address: 130.127.48.1 Non-authoritative answer: cs.unc.edu nameserver = mcenroe.cs.unc.edu cs.unc.edu nameserver = borg.cs.unc.edu cs.unc.edu nameserver = ncnoc.ncren.net cs.unc.edu nameserver = ns2.unc.edu cs.unc.edu nameserver = ns.unc.edu Authoritative answers can be found from: cs.UNC.EDU nameserver = mcenroe.cs.unc.edu cs.UNC.EDU nameserver = borg.cs.unc.edu cs.UNC.EDU nameserver = ncnoc.ncren.net cs.UNC.EDU nameserver = ns2.unc.edu cs.UNC.EDU nameserver = ns.unc.edu mcenroe.cs.unc.edu internet address = 152.2.128.184 borg.cs.unc.edu internet address = 152.2.128.183 ncnoc.ncren.net internet address = 192.101.21.1 ncnoc.ncren.net internet address = 128.109.193.1 ns2.unc.edu internet address = 152.2.100.1 ns2.unc.edu internet address = 152.2.120.99 ns.unc.edu internet address = 152.2.21.1 > > server borg.cs.unc.edu Default Server: borg.cs.unc.edu Address: 152.2.128.183 > ls cs.unc.edu > unc.log [borg.cs.unc.edu] ######################################################################################## Received 4415 records. > (Here is some of the output) > ls cs.unc.edu [borg.cs.unc.edu] cs.unc.edu. server = mcenroe.cs.unc.edu mcenroe 152.2.128.184 cs.unc.edu. server = borg.cs.unc.edu borg 152.2.128.183 cs.unc.edu. server = ncnoc.ncren.net ncnoc.ncren.net. 192.101.21.1 ncnoc.ncren.net. 128.109.193.1 cs.unc.edu. server = ns2.unc.edu ns2.unc.edu. 152.2.100.1 ns2.unc.edu. 152.2.120.99 cs.unc.edu. server = ns.unc.edu ns.unc.edu. 152.2.21.1 cs.unc.edu. 152.2.128.159 luebke-slip 152.2.132.239 mac-lt6 152.2.132.7 > set q=HINFO > mac-lt6 Server: borg.cs.unc.edu Address: 152.2.128.183 *** borg.cs.unc.edu can't find mac-lt6: Non-existent domain > mac-lt6.cs.unc.edu Server: borg.cs.unc.edu Address: 152.2.128.183 *** No host information (HINFO) records available for mac-lt6.cs.unc.edu ================================= > polaris.cs.unc.edu Server: borg.cs.unc.edu Address: 152.2.128.183 *** No host information (HINFO) records available for polaris.cs.unc.edu > set q=A > polaris.cs.unc.edu Server: borg.cs.unc.edu Address: 152.2.128.183 Name: polaris.cs.unc.edu Address: 152.2.133.160 ============================= > set nosearch > set norec > domino.cs.orst.edu Server: cs.clemson.edu Addresses: 130.127.44.18, 130.127.48.1 Aliases: citron.cs.clemson.edu Name: domino.cs.orst.edu Served by: - beasley.UCS.ORST.EDU 128.193.128.3 CS.ORST.EDU - chert.cs.orst.edu 128.193.38.7 CS.ORST.EDU - gibson.cs.orst.edu 128.193.36.30 CS.ORST.EDU - NS.cs.orst.edu 128.193.36.31 CS.ORST.EDU ===================================== > set d2 > set norecurse > set nosearch > warp.cs.ucla.edu. Default Server: citron.cs.clemson.edu Address: 130.127.48.1 > > > > Server: citron.cs.clemson.edu Address: 130.127.48.1 res_mkquery(0, warp.cs.ucla.edu, 1, 1) ------------ SendRequest(), len 34 HEADER: opcode = QUERY, id = 2, rcode = NOERROR header flags: query questions = 1, answers = 0, authority records = 0, additional = 0 QUESTIONS: warp.cs.ucla.edu, type = A, class = IN ------------ Got answer (247 bytes): HEADER: opcode = QUERY, id = 2, rcode = NOERROR header flags: response, recursion avail. questions = 1, answers = 0, authority records = 5, additional = 6 QUESTIONS: warp.cs.ucla.edu, type = A, class = IN AUTHORITY RECORDS: -> UCLA.EDU type = NS, class = IN, dlen = 10 nameserver = Maui.CS.UCLA.EDU ttl = 50022 (13 hours 53 mins 42 secs) -> UCLA.EDU type = NS, class = IN, dlen = 16 nameserver = SPARKY.ARL.MIL ttl = 50022 (13 hours 53 mins 42 secs) -> UCLA.EDU type = NS, class = IN, dlen = 6 nameserver = NCC.UCLA.EDU ttl = 50022 (13 hours 53 mins 42 secs) -> UCLA.EDU type = NS, class = IN, dlen = 9 nameserver = KODIAK.UCLA.EDU ttl = 50022 (13 hours 53 mins 42 secs) -> UCLA.EDU type = NS, class = IN, dlen = 8 nameserver = POLAR.UCLA.EDU ttl = 50022 (13 hours 53 mins 42 secs) ADDITIONAL RECORDS: -> Maui.CS.UCLA.EDU type = A, class = IN, dlen = 4 internet address = 131.179.128.11 ttl = 82131 (22 hours 48 mins 51 secs) -> SPARKY.ARL.MIL type = A, class = IN, dlen = 4 internet address = 128.63.48.85 ttl = 56249 (15 hours 37 mins 29 secs) -> SPARKY.ARL.MIL type = A, class = IN, dlen = 4 internet address = 192.5.23.200 ttl = 483795 (5 days 14 hours 23 mins 15 secs) -> NCC.UCLA.EDU type = A, class = IN, dlen = 4 internet address = 128.97.128.1 ttl = 82131 (22 hours 48 mins 51 secs) -> KODIAK.UCLA.EDU type = A, class = IN, dlen = 4 internet address = 164.67.128.11 ttl = 82131 (22 hours 48 mins 51 secs) -> POLAR.UCLA.EDU type = A, class = IN, dlen = 4 internet address = 164.67.128.12 ttl = 82131 (22 hours 48 mins 51 secs) ./tcpdump -n host citron and port 53 130.127.48.1.53 > 130.127.48.2.4083: 62635 NXDomain* 0/1/0 (116) 130.127.48.2.4083 > 130.127.48.1.53: 62636+ A? indiaworld.com.clemson.edu. (44) 130.127.48.1.53 > 130.127.48.2.4083: 62636 NXDomain* 0/1/0 (105) 130.127.48.2.4083 > 130.127.48.1.53: 62637+ A? indiaworld.com. (32) 130.127.48.1.53 > 130.127.48.2.4083: 62637 1/2/2 A 204.118.19.2 (137) 130.127.48.2.4084 > 130.127.48.1.53: 62638+ PTR? 222.94.151.130.in-addr.arpa. (45) 130.127.48.1.53 > 130.127.48.2.4084: 62638* 1/3/3 (213) 130.127.48.2.4085 > 130.127.48.1.53: 62639+ A? jvalensa.pwreng.mke.ab.com. (44) 130.127.48.1.53 > 130.127.48.2.4085: 62639* 1/3/3 (188) 130.127.48.2.4086 > 130.127.48.1.53: 62640+ PTR? 15.193.163.152.in-addr.arpa. (45) 130.127.48.1.53 > 130.127.48.2.4086: 62640* 1/2/2 (190) 130.127.48.2.4087 > 130.127.48.1.53: 62641+ A? www-h5.proxy.aol.com. (38) 130.127.48.1.53 > 130.127.48.2.4087: 62641* 1/2/2 A 152.163.193.15 (154) 130.127.48.1.53 > 130.127.48.2.4083: 62635 NXDomain* 0/1/0 (116) 130.127.48.2.4083 > 130.127.48.1.53: 62636+ A? indiaworld.com.clemson.edu. (44) 130.127.48.1.53 > 130.127.48.2.4083: 62636 NXDomain* 0/1/0 (105) 130.127.48.2.4083 > 130.127.48.1.53: 62637+ A? indiaworld.com. (32) 130.127.48.1.53 > 130.127.48.2.4083: 62637 1/2/2 A 204.118.19.2 (137) 130.127.48.2.4084 > 130.127.48.1.53: 62638+ PTR? 222.94.151.130.in-addr.arpa. (45) 130.127.48.1.53 > 130.127.48.2.4084: 62638* 1/3/3 (213) 130.127.48.2.4085 > 130.127.48.1.53: 62639+ A? jvalensa.pwreng.mke.ab.com. (44) 130.127.48.1.53 > 130.127.48.2.4085: 62639* 1/3/3 (188) 130.127.48.2.4086 > 130.127.48.1.53: 62640+ PTR? 15.193.163.152.in-addr.arpa. (45) 130.127.48.1.53 > 130.127.48.2.4086: 62640* 1/2/2 (190) 130.127.48.2.4087 > 130.127.48.1.53: 62641+ A? www-h5.proxy.aol.com. (38) 130.127.48.1.53 > 130.127.48.2.4087: 62641* 1/2/2 A 152.163.193.15 (154) 13:13:19.949692 130.127.48.1.53 > 130.127.48.4.3568: 18547 NXDomain* 0/1/0 (118) 13:13:19.951590 130.127.48.4.3568 > 130.127.8.1.53: 18548+ A? lycos.cs.cmu.edu.clemson.edu. (46) 13:13:19.952220 130.127.8.1.53 > 130.127.48.4.3568: 18547 NXDomain* 0/1/0 (104) 13:13:19.954542 130.127.8.1.53 > 130.127.48.4.3568: 18548 NXDomain* 0/1/0 (107) 13:13:19.955933 130.127.48.4.3568 > 130.127.8.1.53: 18549+ A? lycos.cs.cmu.edu. (34) 13:13:20.073364 130.127.8.1.53 > 130.127.48.4.3568: 18549 4/2/2 (197) 13:13:48.475207 130.127.48.4.3569 > 130.127.48.1.53: 18550+ A? haverford.edu.cs.clemson.edu. (46) 13:13:48.476152 130.127.48.4.3569 > 130.127.8.1.53: 18550+ A? haverford.edu.cs.clemson.edu. (46) 13:13:48.502039 130.127.48.1.53 > 130.127.48.4.3569: 18550 NXDomain* 0/1/0 (115) 13:13:48.502216 130.127.8.1.53 > 130.127.48.4.3569: 18550 NXDomain* 0/1/0 (101) 13:13:48.503752 130.127.48.4.3569 > 130.127.8.1.53: 18551+ A? haverford.edu.clemson.edu. (43) 13:13:48.506510 130.127.8.1.53 > 130.127.48.4.3569: 18551 NXDomain* 0/1/0 (104) 13:13:48.507735 130.127.48.4.3569 > 130.127.8.1.53: 18552+ A? haverford.edu. (31) 13:13:48.526888 130.127.8.1.53 > 130.127.48.4.3569: 18552 1/2/2 A 30.1.82.165 (125)