home *** CD-ROM | disk | FTP | other *** search
open in:
MacOS 8.1
|
Win98
|
DOS
browse contents |
view JSON data
|
view as text
This file was processed as: Mailbox/MIME Entity
(archive/mbox).
Confidence | Program | Detection | Match Type | Support
|
---|
100%
| dexvert
| Mailbox/MIME Entity (archive/mbox)
| magic
| Supported |
100%
| dexvert
| Internet Message Format (text/imf)
| magic
| Supported |
1%
| dexvert
| Text File (text/txt)
| fallback
| Supported |
100%
| file
| RFC 822 mail, ASCII text
| default
| |
100%
| TrID
| E-Mail message (Var. 5)
| default
| |
100%
| checkBytes
| Printable ASCII
| default
| |
100%
| perlTextCheck
| Likely Text (Perl)
| default
| |
100%
| siegfried
| fmt/950 MIME Email (1.0)
| default
| |
100%
| detectItEasy
| Format: plain text[LF]
| default (weak)
|
|
hex view+--------+-------------------------+-------------------------+--------+--------+
|00000000| 52 65 63 65 69 76 65 64 | 3a 20 62 79 20 67 77 2e |Received|: by gw.|
|00000010| 68 6f 6d 65 2e 76 69 78 | 2e 63 6f 6d 20 69 64 20 |home.vix|.com id |
|00000020| 41 41 31 31 33 30 35 3b | 20 54 68 75 2c 20 38 20 |AA11305;| Thu, 8 |
|00000030| 44 65 63 20 39 34 20 32 | 30 3a 32 30 3a 34 39 20 |Dec 94 2|0:20:49 |
|00000040| 2d 30 38 30 30 0a 52 65 | 63 65 69 76 65 64 3a 20 |-0800.Re|ceived: |
|00000050| 28 66 72 6f 6d 20 65 6c | 6c 6f 7a 79 40 6c 6f 63 |(from el|lozy@loc|
|00000060| 61 6c 68 6f 73 74 29 20 | 62 79 20 6e 65 74 6d 61 |alhost) |by netma|
|00000070| 6e 2d 6d 65 6c 2e 64 66 | 63 69 2e 68 61 72 76 61 |n-mel.df|ci.harva|
|00000080| 72 64 2e 65 64 75 20 28 | 38 2e 36 2e 39 2f 38 2e |rd.edu (|8.6.9/8.|
|00000090| 36 2e 36 29 20 69 64 20 | 58 41 41 31 33 37 33 31 |6.6) id |XAA13731|
|000000a0| 3b 20 54 68 75 2c 20 38 | 20 44 65 63 20 31 39 39 |; Thu, 8| Dec 199|
|000000b0| 34 20 32 33 3a 32 30 3a | 34 38 20 2d 30 35 30 30 |4 23:20:|48 -0500|
|000000c0| 0a 46 72 6f 6d 3a 20 4d | 6f 68 61 6d 65 64 20 45 |.From: M|ohamed E|
|000000d0| 6c 6c 6f 7a 79 20 3c 65 | 6c 6c 6f 7a 79 40 6e 65 |llozy <e|llozy@ne|
|000000e0| 74 6d 61 6e 2d 6d 65 6c | 2e 64 66 63 69 2e 68 61 |tman-mel|.dfci.ha|
|000000f0| 72 76 61 72 64 2e 65 64 | 75 3e 0a 4d 65 73 73 61 |rvard.ed|u>.Messa|
|00000100| 67 65 2d 49 64 3a 20 3c | 31 39 39 34 31 32 30 39 |ge-Id: <|19941209|
|00000110| 30 34 32 30 2e 58 41 41 | 31 33 37 33 31 40 6e 65 |0420.XAA|13731@ne|
|00000120| 74 6d 61 6e 2d 6d 65 6c | 2e 64 66 63 69 2e 68 61 |tman-mel|.dfci.ha|
|00000130| 72 76 61 72 64 2e 65 64 | 75 3e 0a 53 75 62 6a 65 |rvard.ed|u>.Subje|
|00000140| 63 74 3a 20 52 65 3a 20 | 42 49 4e 44 20 34 2e 39 |ct: Re: |BIND 4.9|
|00000150| 2e 33 20 42 65 74 61 31 | 31 20 50 61 74 63 68 34 |.3 Beta1|1 Patch4|
|00000160| 20 69 73 20 61 76 61 69 | 6c 61 62 6c 65 0a 54 6f | is avai|lable.To|
|00000170| 3a 20 70 61 75 6c 40 76 | 69 78 2e 63 6f 6d 0a 44 |: paul@v|ix.com.D|
|00000180| 61 74 65 3a 20 54 68 75 | 2c 20 38 20 44 65 63 20 |ate: Thu|, 8 Dec |
|00000190| 31 39 39 34 20 32 33 3a | 32 30 3a 34 37 20 2d 30 |1994 23:|20:47 -0|
|000001a0| 35 30 30 20 28 45 53 54 | 29 0a 43 63 3a 20 62 69 |500 (EST|).Cc: bi|
|000001b0| 6e 64 2d 77 6f 72 6b 65 | 72 73 40 76 69 78 2e 63 |nd-worke|rs@vix.c|
|000001c0| 6f 6d 0a 49 6e 2d 52 65 | 70 6c 79 2d 54 6f 3a 20 |om.In-Re|ply-To: |
|000001d0| 3c 39 34 31 32 30 39 30 | 31 35 33 2e 41 41 30 37 |<9412090|153.AA07|
|000001e0| 39 30 37 40 67 77 2e 68 | 6f 6d 65 2e 76 69 78 2e |907@gw.h|ome.vix.|
|000001f0| 63 6f 6d 3e 20 66 72 6f | 6d 20 22 50 61 75 6c 20 |com> fro|m "Paul |
|00000200| 41 20 56 69 78 69 65 22 | 20 61 74 20 44 65 63 20 |A Vixie"| at Dec |
|00000210| 38 2c 20 39 34 20 30 35 | 3a 35 33 3a 32 38 20 70 |8, 94 05|:53:28 p|
|00000220| 6d 0a 52 65 70 6c 79 2d | 54 6f 3a 20 65 6c 6c 6f |m.Reply-|To: ello|
|00000230| 7a 79 40 64 66 63 69 2e | 68 61 72 76 61 72 64 2e |zy@dfci.|harvard.|
|00000240| 65 64 75 0a 58 2d 4f 72 | 67 61 6e 69 7a 61 74 69 |edu.X-Or|ganizati|
|00000250| 6f 6e 3a 20 44 61 6e 61 | 2d 46 61 72 62 65 72 20 |on: Dana|-Farber |
|00000260| 43 61 6e 63 65 72 20 49 | 6e 73 74 69 74 75 74 65 |Cancer I|nstitute|
|00000270| 0a 58 2d 50 68 6f 6e 65 | 3a 20 36 31 37 2d 36 33 |.X-Phone|: 617-63|
|00000280| 32 2d 33 30 33 34 2c 20 | 36 31 37 2d 36 33 32 2d |2-3034, |617-632-|
|00000290| 33 34 32 35 0a 58 2d 4d | 61 69 6c 65 72 3a 20 45 |3425.X-M|ailer: E|
|000002a0| 4c 4d 20 5b 76 65 72 73 | 69 6f 6e 20 32 2e 34 20 |LM [vers|ion 2.4 |
|000002b0| 50 4c 32 32 5d 0a 4d 69 | 6d 65 2d 56 65 72 73 69 |PL22].Mi|me-Versi|
|000002c0| 6f 6e 3a 20 31 2e 30 0a | 43 6f 6e 74 65 6e 74 2d |on: 1.0.|Content-|
|000002d0| 54 79 70 65 3a 20 74 65 | 78 74 2f 70 6c 61 69 6e |Type: te|xt/plain|
|000002e0| 3b 20 63 68 61 72 73 65 | 74 3d 55 53 2d 41 53 43 |; charse|t=US-ASC|
|000002f0| 49 49 0a 43 6f 6e 74 65 | 6e 74 2d 54 72 61 6e 73 |II.Conte|nt-Trans|
|00000300| 66 65 72 2d 45 6e 63 6f | 64 69 6e 67 3a 20 37 62 |fer-Enco|ding: 7b|
|00000310| 69 74 0a 43 6f 6e 74 65 | 6e 74 2d 4c 65 6e 67 74 |it.Conte|nt-Lengt|
|00000320| 68 3a 20 34 38 38 34 20 | 20 20 20 20 20 0a 0a 50 |h: 4884 | ..P|
|00000330| 61 75 6c 20 41 20 56 69 | 78 69 65 20 77 72 69 74 |aul A Vi|xie writ|
|00000340| 65 73 0a 3e 20 0a 3e 20 | 69 20 61 6d 20 77 69 6c |es.> .> |i am wil|
|00000350| 6c 69 6e 67 20 74 6f 20 | 6c 6f 6f 6b 20 61 74 20 |ling to |look at |
|00000360| 63 68 65 63 6b 65 72 20 | 69 66 20 73 6f 6d 65 6f |checker |if someo|
|00000370| 6e 65 20 73 65 6e 64 73 | 20 6d 65 20 61 20 63 6f |ne sends| me a co|
|00000380| 70 79 2e 0a 0a 44 61 74 | 65 3a 20 46 72 69 2c 20 |py...Dat|e: Fri, |
|00000390| 32 38 20 4d 61 79 20 39 | 33 20 31 36 3a 30 39 3a |28 May 9|3 16:09:|
|000003a0| 34 33 20 50 44 54 0a 46 | 72 6f 6d 3a 20 73 6d 69 |43 PDT.F|rom: smi|
|000003b0| 6c 6c 65 72 40 63 61 6c | 64 65 72 61 2e 75 73 63 |ller@cal|dera.usc|
|000003c0| 2e 65 64 75 20 28 53 74 | 65 70 68 65 6e 20 42 2e |.edu (St|ephen B.|
|000003d0| 20 4d 69 6c 6c 65 72 29 | 0a 54 6f 3a 20 65 6c 6c | Miller)|.To: ell|
|000003e0| 6f 7a 79 40 66 61 72 62 | 65 72 2e 68 61 72 76 61 |ozy@farb|er.harva|
|000003f0| 72 64 2e 65 64 75 0a 53 | 75 62 6a 65 63 74 3a 20 |rd.edu.S|ubject: |
|00000400| 54 68 65 20 43 68 65 63 | 6b 65 72 20 50 72 6f 6a |The Chec|ker Proj|
|00000410| 65 63 74 0a 0a 4d 6f 68 | 61 6d 65 64 2c 0a 0a 50 |ect..Moh|amed,..P|
|00000420| 6c 65 61 73 65 20 66 74 | 70 20 66 72 6f 6d 20 7e |lease ft|p from ~|
|00000430| 66 74 70 2f 70 75 62 2f | 63 68 65 63 6b 65 72 20 |ftp/pub/|checker |
|00000440| 6f 6e 20 63 61 6c 64 65 | 72 61 2e 75 73 63 2e 65 |on calde|ra.usc.e|
|00000450| 64 75 20 66 6f 72 20 74 | 68 65 20 63 6f 64 65 20 |du for t|he code |
|00000460| 61 6e 64 20 0a 64 6f 63 | 75 6d 65 6e 74 61 74 69 |and .doc|umentati|
|00000470| 6f 6e 20 6f 6e 20 6f 75 | 72 20 72 65 73 65 61 72 |on on ou|r resear|
|00000480| 63 68 20 77 6f 72 6b 20 | 77 69 74 68 20 74 68 65 |ch work |with the|
|00000490| 20 44 4e 53 20 71 75 65 | 72 79 20 74 72 61 66 66 | DNS que|ry traff|
|000004a0| 69 63 20 74 68 61 74 20 | 49 20 0a 6d 65 6e 74 69 |ic that |I .menti|
|000004b0| 6f 6e 65 64 20 79 65 73 | 74 65 72 64 61 79 2e 20 |oned yes|terday. |
|000004c0| 20 41 6c 73 6f 20 69 6e | 63 6c 75 64 65 64 20 74 | Also in|cluded t|
|000004d0| 68 65 72 65 20 69 73 20 | 74 68 65 20 61 6e 6e 6f |here is |the anno|
|000004e0| 75 6e 63 65 6d 65 6e 74 | 20 74 68 61 74 20 49 20 |uncement| that I |
|000004f0| 0a 61 6d 20 6d 61 69 6c | 69 6e 67 20 74 6f 20 74 |.am mail|ing to t|
|00000500| 68 65 20 62 69 6e 64 20 | 6d 61 69 6c 20 67 72 6f |he bind |mail gro|
|00000510| 75 70 20 61 62 6f 75 74 | 20 74 68 65 20 70 72 6f |up about| the pro|
|00000520| 6a 65 63 74 2e 0a 0a 53 | 74 65 70 68 65 6e 20 4d |ject...S|tephen M|
|00000530| 69 6c 6c 65 72 0a 0a 49 | 74 73 20 73 74 69 6c 6c |iller..I|ts still|
|00000540| 20 74 68 65 72 65 2c 20 | 68 65 72 65 20 69 73 20 | there, |here is |
|00000550| 74 68 65 20 61 6e 6e 6f | 75 6e 63 65 2e 74 78 74 |the anno|unce.txt|
|00000560| 3a 0a 0a 54 68 65 20 65 | 61 72 6c 69 65 72 20 72 |:..The e|arlier r|
|00000570| 65 71 75 65 73 74 20 66 | 6f 72 20 61 69 64 20 66 |equest f|or aid f|
|00000580| 72 6f 6d 20 4d 6f 68 61 | 6d 65 64 20 45 6c 6c 6f |rom Moha|med Ello|
|00000590| 7a 79 20 68 61 73 20 70 | 72 6f 6d 70 74 65 64 20 |zy has p|rompted |
|000005a0| 6d 65 20 74 6f 20 67 6f | 0a 61 68 65 61 64 20 61 |me to go|.ahead a|
|000005b0| 6e 64 20 72 65 6c 65 61 | 73 65 20 73 6f 6d 65 20 |nd relea|se some |
|000005c0| 69 6e 66 6f 72 6d 61 74 | 69 6f 6e 20 6f 6e 20 61 |informat|ion on a|
|000005d0| 20 70 72 6f 6a 65 63 74 | 20 6f 6e 67 6f 69 6e 67 | project| ongoing|
|000005e0| 20 61 74 20 55 53 43 20 | 74 68 61 74 20 0a 6d 69 | at USC |that .mi|
|000005f0| 67 68 74 20 62 65 20 6f | 66 20 73 6f 6d 65 20 61 |ght be o|f some a|
|00000600| 69 64 20 74 6f 20 6f 74 | 68 65 72 73 20 6c 69 6b |id to ot|hers lik|
|00000610| 65 20 68 69 6d 2e 20 20 | 57 69 74 68 20 74 68 69 |e him. |With thi|
|00000620| 73 20 61 6e 6e 6f 75 6e | 63 65 6d 65 6e 74 20 49 |s announ|cement I|
|00000630| 0a 61 6d 20 68 6f 70 69 | 6e 67 20 74 6f 20 67 65 |.am hopi|ng to ge|
|00000640| 74 20 73 6f 6d 65 20 64 | 69 73 63 75 73 73 69 6f |t some d|iscussio|
|00000650| 6e 20 6f 6e 20 74 68 65 | 20 63 6f 6e 63 65 70 74 |n on the| concept|
|00000660| 73 20 69 6d 70 6c 69 65 | 64 20 62 65 6c 6f 77 2c |s implie|d below,|
|00000670| 20 61 6e 64 0a 73 75 67 | 67 65 73 74 69 6f 6e 73 | and.sug|gestions|
|00000680| 20 66 6f 72 20 74 68 69 | 6e 67 73 20 74 68 61 74 | for thi|ngs that|
|00000690| 20 49 20 73 68 6f 75 6c | 64 20 62 65 20 74 65 73 | I shoul|d be tes|
|000006a0| 74 69 6e 67 20 66 6f 72 | 2e 20 20 50 6c 65 61 73 |ting for|. Pleas|
|000006b0| 65 20 66 65 65 6c 20 66 | 72 65 65 0a 74 6f 20 64 |e feel f|ree.to d|
|000006c0| 72 65 64 67 65 20 75 70 | 20 61 6e 79 20 6f 6c 64 |redge up| any old|
|000006d0| 20 68 69 73 74 6f 72 79 | 20 61 73 20 49 20 68 61 | history| as I ha|
|000006e0| 76 65 20 6f 6e 6c 79 20 | 62 65 65 6e 20 77 61 74 |ve only |been wat|
|000006f0| 63 68 69 6e 67 20 62 69 | 6e 64 20 61 63 74 69 76 |ching bi|nd activ|
|00000700| 69 74 79 0a 66 6f 72 20 | 61 62 6f 75 74 20 61 20 |ity.for |about a |
|00000710| 79 65 61 72 20 61 6e 64 | 20 68 61 76 65 20 6f 6e |year and| have on|
|00000720| 6c 79 20 6d 61 6e 61 67 | 65 64 20 6d 69 63 72 6f |ly manag|ed micro|
|00000730| 73 63 6f 70 69 63 20 64 | 6f 6d 61 69 6e 73 20 62 |scopic d|omains b|
|00000740| 79 20 63 6f 6d 70 61 72 | 69 73 6f 6e 0a 74 6f 20 |y compar|ison.to |
|00000750| 73 6f 6d 65 20 6f 66 20 | 79 6f 75 2e 0a 0a 20 20 |some of |you... |
|00000760| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 | | |
|00000770| 20 20 20 20 20 20 20 54 | 68 65 20 43 68 65 63 6b | T|he Check|
|00000780| 65 72 20 50 72 6f 6a 65 | 63 74 0a 0a 54 68 65 20 |er Proje|ct..The |
|00000790| 66 6f 6c 6c 6f 77 69 6e | 67 20 77 6f 72 6b 20 69 |followin|g work i|
|000007a0| 73 20 61 6e 20 65 78 74 | 65 6e 73 69 6f 6e 20 6f |s an ext|ension o|
|000007b0| 66 20 74 68 65 20 70 61 | 70 65 72 20 74 69 74 6c |f the pa|per titl|
|000007c0| 65 64 20 22 41 6e 20 41 | 6e 61 6c 79 73 69 73 20 |ed "An A|nalysis |
|000007d0| 6f 66 20 0a 57 69 64 65 | 2d 41 72 65 61 20 4e 61 |of .Wide|-Area Na|
|000007e0| 6d 65 20 53 65 72 76 65 | 72 20 54 72 61 66 66 69 |me Serve|r Traffi|
|000007f0| 63 22 20 62 79 20 44 61 | 6e 7a 69 67 2c 20 4f 62 |c" by Da|nzig, Ob|
|00000800| 72 61 63 7a 6b 61 2c 20 | 61 6e 64 20 4b 75 6d 61 |raczka, |and Kuma|
|00000810| 72 20 66 72 6f 6d 20 74 | 68 65 20 0a 31 39 39 32 |r from t|he .1992|
|00000820| 20 53 49 47 43 4f 4d 4d | 2e 20 20 41 20 70 6f 73 | SIGCOMM|. A pos|
|00000830| 74 73 63 72 69 70 74 20 | 63 6f 70 79 20 6f 66 20 |tscript |copy of |
|00000840| 74 68 65 20 70 61 70 65 | 72 20 69 73 20 61 76 61 |the pape|r is ava|
|00000850| 69 6c 61 62 6c 65 20 6f | 6e 20 61 6e 6f 6e 79 6d |ilable o|n anonym|
|00000860| 6f 75 73 20 0a 66 74 70 | 20 66 72 6f 6d 20 63 61 |ous .ftp| from ca|
|00000870| 6c 64 65 72 61 2e 75 73 | 63 2e 65 64 75 20 69 6e |ldera.us|c.edu in|
|00000880| 20 74 68 65 20 7e 66 74 | 70 2f 70 75 62 2f 63 68 | the ~ft|p/pub/ch|
|00000890| 65 63 6b 65 72 20 64 69 | 72 65 63 74 6f 72 79 2e |ecker di|rectory.|
|000008a0| 20 20 44 65 73 69 67 6e | 2c 0a 63 6f 64 69 6e 67 | Design|,.coding|
|000008b0| 2c 20 61 6e 64 20 74 65 | 73 74 69 6e 67 20 68 61 |, and te|sting ha|
|000008c0| 73 20 62 65 65 6e 20 63 | 6f 6e 64 75 63 74 65 64 |s been c|onducted|
|000008d0| 20 62 79 20 53 74 65 70 | 68 65 6e 20 4d 69 6c 6c | by Step|hen Mill|
|000008e0| 65 72 20 28 73 6d 69 6c | 6c 65 72 40 0a 63 61 6c |er (smil|ler@.cal|
|000008f0| 64 65 72 61 2e 75 73 63 | 2e 65 64 75 29 2c 20 50 |dera.usc|.edu), P|
|00000900| 65 74 65 72 20 44 61 6e | 7a 69 67 20 28 64 61 6e |eter Dan|zig (dan|
|00000910| 7a 69 67 40 75 73 63 2e | 65 64 75 29 2c 20 61 6e |zig@usc.|edu), an|
|00000920| 64 20 41 6e 61 6e 74 20 | 4b 75 6d 61 72 0a 28 61 |d Anant |Kumar.(a|
|00000930| 6e 61 6e 74 40 69 73 69 | 2e 65 64 75 29 20 69 6e |nant@isi|.edu) in|
|00000940| 20 74 68 65 20 55 53 43 | 20 6e 65 74 77 6f 72 6b | the USC| network|
|00000950| 69 6e 67 20 72 65 73 65 | 61 72 63 68 20 6c 61 62 |ing rese|arch lab|
|00000960| 6f 72 61 74 6f 72 79 2e | 0a 0a 54 68 65 20 43 68 |oratory.|..The Ch|
|00000970| 65 63 6b 65 72 20 50 72 | 6f 6a 65 63 74 20 69 73 |ecker Pr|oject is|
|00000980| 20 61 6e 20 61 74 74 65 | 6d 70 74 20 74 6f 20 62 | an atte|mpt to b|
|00000990| 75 69 6c 64 20 6f 6e 74 | 6f 20 6e 61 6d 65 64 20 |uild ont|o named |
|000009a0| 74 68 65 20 61 62 69 6c | 69 74 79 20 74 6f 20 0a |the abil|ity to .|
|000009b0| 73 63 61 6e 20 74 68 65 | 20 69 6e 63 6f 6d 69 6e |scan the| incomin|
|000009c0| 67 20 71 75 65 72 79 20 | 74 72 61 66 66 69 63 20 |g query |traffic |
|000009d0| 6c 6f 6f 6b 69 6e 67 20 | 66 6f 72 20 63 6c 69 65 |looking |for clie|
|000009e0| 6e 74 20 6d 61 63 68 69 | 6e 65 73 20 74 68 61 74 |nt machi|nes that|
|000009f0| 20 6d 61 79 20 62 65 20 | 0a 65 78 70 65 72 69 65 | may be |.experie|
|00000a00| 6e 63 69 6e 67 20 70 72 | 6f 62 6c 65 6d 73 20 67 |ncing pr|oblems g|
|00000a10| 65 74 74 69 6e 67 20 74 | 68 65 69 72 20 72 65 71 |etting t|heir req|
|00000a20| 75 65 73 74 73 20 73 61 | 74 69 73 66 69 65 64 2e |uests sa|tisfied.|
|00000a30| 20 20 54 68 65 20 70 72 | 6f 6a 65 63 74 0a 69 74 | The pr|oject.it|
|00000a40| 73 65 6c 66 20 69 73 20 | 61 20 73 65 74 20 6f 66 |self is |a set of|
|00000a50| 20 43 20 63 6f 64 65 20 | 74 68 61 74 20 62 75 69 | C code |that bui|
|00000a60| 6c 64 73 20 61 20 64 61 | 74 61 62 61 73 65 20 66 |lds a da|tabase f|
|00000a70| 72 6f 6d 20 74 68 65 20 | 6e 61 6d 65 73 65 72 76 |rom the |nameserv|
|00000a80| 65 72 20 0a 71 75 65 72 | 79 20 61 6e 64 20 72 65 |er .quer|y and re|
|00000a90| 73 70 6f 6e 73 65 20 74 | 72 61 66 66 69 63 2e 20 |sponse t|raffic. |
|00000aa0| 20 57 68 65 6e 65 76 65 | 72 20 61 20 71 75 65 72 | Wheneve|r a quer|
|00000ab0| 79 20 6f 72 20 72 65 73 | 70 6f 6e 73 65 20 69 73 |y or res|ponse is|
|00000ac0| 20 70 61 73 73 65 64 20 | 0a 74 68 72 6f 75 67 68 | passed |.through|
|00000ad0| 20 74 68 65 20 63 68 65 | 63 6b 65 72 20 63 6f 64 | the che|cker cod|
|00000ae0| 65 20 69 74 73 20 74 69 | 6d 69 6e 67 20 61 6e 64 |e its ti|ming and|
|00000af0| 20 72 65 73 70 6f 6e 73 | 65 20 63 6f 64 65 20 69 | respons|e code i|
|00000b00| 73 20 63 68 65 63 6b 65 | 64 20 61 67 61 69 6e 73 |s checke|d agains|
|00000b10| 74 20 0a 73 6f 6d 65 20 | 68 69 73 74 6f 72 69 63 |t .some |historic|
|00000b20| 61 6c 20 70 61 72 61 6d | 65 74 65 72 73 20 74 6f |al param|eters to|
|00000b30| 20 73 65 65 20 69 66 20 | 74 68 65 20 63 6c 69 65 | see if |the clie|
|00000b40| 6e 74 27 73 20 61 63 74 | 69 76 69 74 79 20 66 61 |nt's act|ivity fa|
|00000b50| 6c 6c 73 20 77 69 74 68 | 69 6e 20 0a 73 6f 6d 65 |lls with|in .some|
|00000b60| 20 62 65 68 61 76 69 6f | 72 61 6c 20 70 61 74 74 | behavio|ral patt|
|00000b70| 65 72 6e 73 20 70 72 65 | 76 69 6f 75 73 6c 79 20 |erns pre|viously |
|00000b80| 69 64 65 6e 74 69 66 69 | 65 64 20 77 69 74 68 20 |identifi|ed with |
|00000b90| 73 6f 6d 65 20 62 72 6f | 6b 65 6e 20 72 65 73 6f |some bro|ken reso|
|00000ba0| 6c 76 65 72 20 0a 6f 72 | 20 6e 61 6d 65 73 65 72 |lver .or| nameser|
|00000bb0| 76 65 72 20 69 6d 70 6c | 65 6d 65 6e 74 61 74 69 |ver impl|ementati|
|00000bc0| 6f 6e 73 2e 20 20 52 65 | 70 6f 72 74 73 20 61 72 |ons. Re|ports ar|
|00000bd0| 65 20 67 65 6e 65 72 61 | 74 65 64 20 75 70 6f 6e |e genera|ted upon|
|00000be0| 20 72 65 71 75 65 73 74 | 20 61 6e 64 20 0a 69 6e | request| and .in|
|00000bf0| 63 6c 75 64 65 20 73 75 | 63 68 20 74 68 69 6e 67 |clude su|ch thing|
|00000c00| 73 20 61 73 3a 20 61 63 | 74 69 76 69 74 79 20 73 |s as: ac|tivity s|
|00000c10| 75 6d 6d 61 72 79 2c 20 | 63 6c 69 65 6e 74 20 61 |ummary, |client a|
|00000c20| 64 64 72 65 73 73 20 73 | 6f 72 74 65 64 20 62 79 |ddress s|orted by|
|00000c30| 20 0a 6e 75 6d 62 65 72 | 20 6f 66 20 64 69 66 66 | .number| of diff|
|00000c40| 65 72 65 6e 74 20 71 75 | 65 72 69 65 73 2c 20 71 |erent qu|eries, q|
|00000c50| 75 65 72 79 20 6e 61 6d | 65 20 73 6f 72 74 65 64 |uery nam|e sorted|
|00000c60| 20 62 79 20 6e 75 6d 62 | 65 72 20 6f 66 20 72 65 | by numb|er of re|
|00000c70| 71 75 65 73 74 73 2c 20 | 0a 61 6e 64 20 63 6c 69 |quests, |.and cli|
|00000c80| 65 6e 74 20 61 64 64 72 | 65 73 73 65 73 20 74 68 |ent addr|esses th|
|00000c90| 61 74 20 68 61 76 65 20 | 68 61 64 20 62 65 68 61 |at have |had beha|
|00000ca0| 76 69 6f 72 73 20 74 68 | 61 74 20 66 61 6c 6c 20 |viors th|at fall |
|00000cb0| 77 69 74 68 20 74 68 65 | 20 0a 70 72 65 64 65 66 |with the| .predef|
|00000cc0| 69 6e 65 64 20 70 61 74 | 74 65 72 6e 73 2e 0a 0a |ined pat|terns...|
|00000cd0| 4b 6e 6f 77 69 6e 67 20 | 74 68 61 74 20 50 61 75 |Knowing |that Pau|
|00000ce0| 6c 20 56 69 78 69 65 20 | 77 61 73 20 70 75 74 74 |l Vixie |was putt|
|00000cf0| 69 6e 67 20 69 6d 6d 65 | 6e 73 65 20 65 66 66 6f |ing imme|nse effo|
|00000d00| 72 74 20 69 6e 74 6f 20 | 74 68 65 20 34 2e 39 20 |rt into |the 4.9 |
|00000d10| 76 65 72 73 69 6f 6e 20 | 0a 49 20 63 68 6f 73 65 |version |.I chose|
|00000d20| 20 74 6f 20 6d 61 6b 65 | 20 61 73 20 66 65 77 20 | to make| as few |
|00000d30| 69 6e 63 75 72 73 69 6f | 6e 73 20 69 6e 74 6f 20 |incursio|ns into |
|00000d40| 6e 61 6d 65 64 20 61 73 | 20 70 6f 73 73 69 62 6c |named as| possibl|
|00000d50| 65 2c 20 77 68 69 63 68 | 20 72 65 73 75 6c 74 65 |e, which| resulte|
|00000d60| 64 20 0a 69 6e 20 35 20 | 6c 69 6e 65 73 20 6f 66 |d .in 5 |lines of|
|00000d70| 20 63 6f 64 65 20 62 65 | 69 6e 67 20 63 68 61 6e | code be|ing chan|
|00000d80| 67 65 64 20 69 6e 20 65 | 61 63 68 20 6f 66 20 6e |ged in e|ach of n|
|00000d90| 73 5f 72 65 71 2e 63 20 | 61 6e 64 20 6e 73 5f 72 |s_req.c |and ns_r|
|00000da0| 65 73 70 2e 63 20 28 6e | 6f 74 20 0a 69 6e 63 6c |esp.c (n|ot .incl|
|00000db0| 75 64 69 6e 67 20 73 6f | 6d 65 20 69 66 64 65 66 |uding so|me ifdef|
|00000dc0| 2f 65 6e 64 69 66 20 73 | 65 74 73 29 2e 20 20 41 |/endif s|ets). A|
|00000dd0| 73 20 66 61 72 20 61 73 | 20 49 20 63 61 6e 20 74 |s far as| I can t|
|00000de0| 65 6c 6c 20 74 68 65 20 | 63 68 61 6e 67 65 73 20 |ell the |changes |
|00000df0| 74 68 61 74 20 0a 77 65 | 20 6d 61 64 65 20 74 6f |that .we| made to|
|00000e00| 20 6c 65 74 20 75 73 20 | 74 65 73 74 20 77 69 74 | let us |test wit|
|00000e10| 68 20 62 69 6e 64 20 34 | 2e 38 2e 33 20 61 72 65 |h bind 4|.8.3 are|
|00000e20| 20 73 74 69 6c 6c 20 76 | 61 6c 69 64 20 69 6e 20 | still v|alid in |
|00000e30| 34 2e 39 2e 20 20 45 76 | 65 6e 0a 74 68 6f 75 67 |4.9. Ev|en.thoug|
|00000e40| 68 20 74 68 65 20 63 6f | 64 65 20 69 73 20 70 72 |h the co|de is pr|
|00000e50| 65 73 65 6e 74 20 69 6e | 20 74 68 65 20 66 74 70 |esent in| the ftp|
|00000e60| 20 64 69 72 65 63 74 6f | 72 79 20 6d 65 6e 74 69 | directo|ry menti|
|00000e70| 6f 6e 65 64 20 61 62 6f | 76 65 20 49 20 77 6f 75 |oned abo|ve I wou|
|00000e80| 6c 64 0a 72 65 73 70 65 | 63 74 66 75 6c 6c 79 20 |ld.respe|ctfully |
|00000e90| 72 65 71 75 65 73 74 20 | 70 65 6f 70 6c 65 20 74 |request |people t|
|00000ea0| 6f 20 65 6d 61 69 6c 20 | 6d 65 20 62 65 66 6f 72 |o email |me befor|
|00000eb0| 65 20 74 61 6b 69 6e 67 | 20 61 20 63 6f 70 79 20 |e taking| a copy |
|00000ec0| 61 73 20 74 68 65 72 65 | 0a 61 72 65 20 63 68 61 |as there|.are cha|
|00000ed0| 6e 67 65 73 20 62 65 69 | 6e 67 20 6d 61 64 65 2e |nges bei|ng made.|
|00000ee0| 20 20 50 6c 65 61 73 65 | 20 66 65 65 6c 20 66 72 | Please| feel fr|
|00000ef0| 65 65 20 74 6f 20 67 65 | 74 20 61 20 63 6f 70 79 |ee to ge|t a copy|
|00000f00| 20 6f 66 20 74 68 65 20 | 70 6f 73 74 73 63 72 69 | of the |postscri|
|00000f10| 70 74 0a 69 6e 73 74 61 | 6c 6c 61 74 69 6f 6e 20 |pt.insta|llation |
|00000f20| 61 6e 64 20 6f 70 65 72 | 61 74 69 6f 6e 73 20 67 |and oper|ations g|
|00000f30| 75 69 64 65 2e 20 20 41 | 6e 79 20 63 6f 6d 6d 65 |uide. A|ny comme|
|00000f40| 6e 74 73 20 6f 6e 20 74 | 68 61 74 20 61 72 65 20 |nts on t|hat are |
|00000f50| 65 73 70 65 63 69 61 6c | 6c 79 0a 77 65 6c 63 6f |especial|ly.welco|
|00000f60| 6d 65 2e 20 20 54 68 65 | 20 43 20 64 69 61 6c 65 |me. The| C diale|
|00000f70| 63 74 20 69 73 20 70 72 | 65 74 74 79 20 67 65 6e |ct is pr|etty gen|
|00000f80| 65 72 69 63 2c 20 62 75 | 74 20 74 65 73 74 69 6e |eric, bu|t testin|
|00000f90| 67 20 68 61 73 20 6f 6e | 6c 79 20 62 65 65 6e 20 |g has on|ly been |
|00000fa0| 64 6f 6e 65 0a 75 73 69 | 6e 67 20 53 75 6e 4f 53 |done.usi|ng SunOS|
|00000fb0| 3b 20 66 6f 6c 6c 6f 77 | 69 6e 67 20 50 61 75 6c |; follow|ing Paul|
|00000fc0| 27 73 20 73 74 79 6c 65 | 20 66 6f 72 20 68 61 6e |'s style| for han|
|00000fd0| 64 6c 69 6e 67 20 6d 75 | 6c 74 69 70 6c 65 20 70 |dling mu|ltiple p|
|00000fe0| 6c 61 74 66 6f 72 6d 73 | 20 69 73 0a 6f 6e 20 6d |latforms| is.on m|
|00000ff0| 79 20 6c 69 73 74 20 6f | 66 20 74 68 69 6e 67 73 |y list o|f things|
|00001000| 20 74 6f 20 64 6f 2e 0a | 0a 54 68 65 20 63 75 72 | to do..|.The cur|
|00001010| 72 65 6e 74 20 61 6c 70 | 68 61 20 76 65 72 73 69 |rent alp|ha versi|
|00001020| 6f 6e 20 6f 66 20 43 68 | 65 63 6b 65 72 20 68 61 |on of Ch|ecker ha|
|00001030| 73 20 62 65 65 6e 20 72 | 75 6e 6e 69 6e 67 20 6f |s been r|unning o|
|00001040| 6e 65 20 6f 66 20 74 68 | 65 20 72 6f 6f 74 73 0a |ne of th|e roots.|
|00001050| 66 6f 72 20 74 68 65 20 | 55 53 20 64 6f 6d 61 69 |for the |US domai|
|00001060| 6e 20 66 6f 72 20 61 20 | 66 65 77 20 77 65 65 6b |n for a |few week|
|00001070| 73 20 77 69 74 68 20 6e | 6f 20 66 61 69 6c 75 72 |s with n|o failur|
|00001080| 65 73 2c 20 75 6e 64 65 | 72 20 61 20 6c 6f 61 64 |es, unde|r a load|
|00001090| 20 6f 66 0a 73 65 76 65 | 72 61 6c 20 74 68 6f 75 | of.seve|ral thou|
|000010a0| 73 61 6e 64 20 71 75 65 | 72 69 65 73 20 61 20 64 |sand que|ries a d|
|000010b0| 61 79 2e 20 20 4f 75 72 | 20 69 6e 69 74 69 61 6c |ay. Our| initial|
|000010c0| 20 65 78 70 65 72 69 65 | 6e 63 65 73 20 73 68 6f | experie|nces sho|
|000010d0| 77 20 73 6f 6d 65 20 67 | 6f 6f 64 0a 73 74 75 66 |w some g|ood.stuf|
|000010e0| 66 2c 20 61 6c 6f 6e 67 | 20 77 69 74 68 20 73 6f |f, along| with so|
|000010f0| 6d 65 20 74 68 69 6e 67 | 73 20 74 6f 20 6c 6f 6f |me thing|s to loo|
|00001100| 6b 20 61 74 2e 20 20 57 | 65 20 68 61 76 65 20 68 |k at. W|e have h|
|00001110| 61 64 20 6e 6f 20 70 72 | 6f 62 6c 65 6d 20 73 65 |ad no pr|oblem se|
|00001120| 65 69 6e 67 0a 74 68 65 | 20 63 6c 69 65 6e 74 73 |eing.the| clients|
|00001130| 20 74 68 61 74 20 73 65 | 65 6d 20 74 6f 20 62 65 | that se|em to be|
|00001140| 20 6d 61 6b 69 6e 67 20 | 61 20 6c 6f 74 20 6f 66 | making |a lot of|
|00001150| 20 61 62 73 75 72 64 20 | 71 75 65 72 69 65 73 2c | absurd |queries,|
|00001160| 20 62 75 74 20 49 20 64 | 6f 75 62 6c 65 64 0a 6e | but I d|oubled.n|
|00001170| 61 6d 65 64 27 73 20 64 | 79 6e 61 6d 69 63 20 6d |amed's d|ynamic m|
|00001180| 65 6d 6f 72 79 20 75 73 | 61 67 65 20 61 74 20 74 |emory us|age at t|
|00001190| 68 65 20 73 61 6d 65 20 | 74 69 6d 65 2e 20 20 4d |he same |time. M|
|000011a0| 65 6d 6f 72 79 20 75 73 | 61 67 65 20 69 73 20 63 |emory us|age is c|
|000011b0| 6f 6e 66 69 67 75 72 65 | 64 0a 62 79 20 74 68 65 |onfigure|d.by the|
|000011c0| 20 72 65 63 6f 72 64 20 | 63 61 63 68 65 20 74 69 | record |cache ti|
|000011d0| 6d 65 20 74 68 6f 75 67 | 68 2c 20 61 6e 64 20 49 |me thoug|h, and I|
|000011e0| 20 74 65 6e 64 20 74 6f | 20 72 75 6e 20 6c 6f 6e | tend to| run lon|
|000011f0| 67 20 70 65 72 69 6f 64 | 73 20 6f 6e 20 6f 75 72 |g period|s on our|
|00001200| 0a 72 65 73 65 61 72 63 | 68 20 6d 61 63 68 69 6e |.researc|h machin|
|00001210| 65 2e 20 4f 74 68 65 72 | 20 75 70 67 72 61 64 65 |e. Other| upgrade|
|00001220| 73 20 63 6f 6d 69 6e 67 | 20 69 6e 63 6c 75 64 65 |s coming| include|
|00001230| 20 61 6c 74 65 72 69 6e | 67 20 74 68 65 20 72 65 | alterin|g the re|
|00001240| 70 6f 72 74 73 20 74 6f | 0a 73 68 6f 77 20 71 75 |ports to|.show qu|
|00001250| 65 72 79 20 72 61 74 65 | 73 20 72 61 74 68 65 72 |ery rate|s rather|
|00001260| 20 74 68 61 6e 20 61 62 | 73 6f 6c 75 74 65 20 63 | than ab|solute c|
|00001270| 6f 75 6e 74 73 2e 20 20 | 41 66 74 65 72 20 72 75 |ounts. |After ru|
|00001280| 6e 6e 69 6e 67 20 66 6f | 72 20 61 20 77 65 65 6b |nning fo|r a week|
|00001290| 0a 77 69 74 68 6f 75 74 | 20 72 65 62 6f 6f 74 69 |.without| rebooti|
|000012a0| 6e 67 20 74 68 65 20 63 | 6f 75 6e 74 73 20 67 65 |ng the c|ounts ge|
|000012b0| 74 20 76 65 72 79 20 6c | 61 72 67 65 2c 20 62 75 |t very l|arge, bu|
|000012c0| 74 20 64 69 76 69 64 65 | 64 20 62 79 20 74 68 65 |t divide|d by the|
|000012d0| 20 74 69 6d 65 0a 66 61 | 63 74 6f 72 20 73 68 6f | time.fa|ctor sho|
|000012e0| 77 20 6e 6f 20 72 65 61 | 6c 20 70 72 6f 62 6c 65 |w no rea|l proble|
|000012f0| 6d 2e 0a 0a 41 6e 20 69 | 6e 74 65 72 65 73 74 69 |m...An i|nteresti|
|00001300| 6e 67 20 66 65 61 74 75 | 72 65 2c 20 63 75 72 72 |ng featu|re, curr|
|00001310| 65 6e 74 6c 79 20 64 69 | 73 61 62 6c 65 64 20 66 |ently di|sabled f|
|00001320| 6f 72 20 74 68 65 20 55 | 53 20 64 6f 6d 61 69 6e |or the U|S domain|
|00001330| 20 74 65 73 74 69 6e 67 | 2c 20 69 73 0a 74 68 65 | testing|, is.the|
|00001340| 20 61 62 69 6c 69 74 79 | 20 66 6f 72 20 74 68 65 | ability| for the|
|00001350| 20 70 72 6f 67 72 61 6d | 20 74 6f 20 72 61 6e 64 | program| to rand|
|00001360| 6f 6d 6c 79 20 63 68 6f | 6f 73 65 20 61 20 71 75 |omly cho|ose a qu|
|00001370| 65 72 79 20 6e 61 6d 65 | 2c 20 61 6e 64 20 65 61 |ery name|, and ea|
|00001380| 74 20 61 6c 6c 0a 72 65 | 70 6c 69 65 73 20 74 6f |t all.re|plies to|
|00001390| 20 74 68 61 74 20 6e 61 | 6d 65 20 66 6f 72 20 61 | that na|me for a|
|000013a0| 20 73 68 6f 72 74 20 28 | 63 6f 6e 66 69 67 75 72 | short (|configur|
|000013b0| 61 62 6c 65 29 20 70 65 | 72 69 6f 64 20 6f 66 20 |able) pe|riod of |
|000013c0| 74 69 6d 65 2e 20 20 54 | 68 65 0a 74 68 65 6f 72 |time. T|he.theor|
|000013d0| 79 20 62 65 68 69 6e 64 | 20 74 68 69 73 20 69 73 |y behind| this is|
|000013e0| 20 74 68 61 74 20 74 68 | 65 20 63 6c 69 65 6e 74 | that th|e client|
|000013f0| 20 73 68 6f 75 6c 64 20 | 63 68 6f 6f 73 65 20 61 | should |choose a|
|00001400| 6e 6f 74 68 65 72 20 73 | 65 72 76 65 72 20 70 72 |nother s|erver pr|
|00001410| 65 74 74 79 0a 71 75 69 | 63 6b 6c 79 20 61 6e 64 |etty.qui|ckly and|
|00001420| 20 73 74 6f 70 20 75 73 | 69 6e 67 20 74 68 65 20 | stop us|ing the |
|00001430| 6f 6e 65 20 74 68 61 74 | 20 69 73 6e 27 74 20 72 |one that| isn't r|
|00001440| 65 70 6c 79 69 6e 67 2e | 20 20 49 66 20 74 68 65 |eplying.| If the|
|00001450| 20 63 6c 69 65 6e 74 20 | 6b 65 65 70 73 0a 61 73 | client |keeps.as|
|00001460| 6b 69 6e 67 20 74 68 65 | 6e 20 74 68 65 20 44 4e |king the|n the DN|
|00001470| 53 20 69 6d 70 6c 65 6d | 65 6e 74 61 74 69 6f 6e |S implem|entation|
|00001480| 20 74 68 65 20 63 6c 69 | 65 6e 74 20 69 73 20 72 | the cli|ent is r|
|00001490| 75 6e 6e 69 6e 67 20 6d | 61 79 20 6e 65 65 64 20 |unning m|ay need |
|000014a0| 74 6f 20 62 65 0a 75 70 | 67 72 61 64 65 64 2e 20 |to be.up|graded. |
|000014b0| 20 44 75 72 69 6e 67 20 | 74 68 65 20 66 69 72 73 | During |the firs|
|000014c0| 74 20 70 68 61 73 65 20 | 6f 66 20 74 65 73 74 69 |t phase |of testi|
|000014d0| 6e 67 20 77 68 65 6e 20 | 49 20 64 69 72 65 63 74 |ng when |I direct|
|000014e0| 65 64 20 55 53 43 27 73 | 20 0a 6e 65 74 77 6f 72 |ed USC's| .networ|
|000014f0| 6b 69 6e 67 20 6c 61 62 | 6f 72 61 74 6f 72 79 20 |king lab|oratory |
|00001500| 74 6f 77 61 72 64 20 61 | 20 6e 61 6d 65 64 2d 63 |toward a| named-c|
|00001510| 68 65 63 6b 65 72 20 69 | 6e 73 74 61 6c 6c 61 74 |hecker i|nstallat|
|00001520| 69 6f 6e 20 77 65 20 66 | 6f 75 6e 64 20 74 68 61 |ion we f|ound tha|
|00001530| 74 0a 6d 6f 73 74 20 6f | 66 20 6f 75 72 20 69 6e |t.most o|f our in|
|00001540| 73 74 61 6c 6c 61 74 69 | 6f 6e 73 20 62 65 68 61 |stallati|ons beha|
|00001550| 76 65 64 20 61 73 20 70 | 72 65 64 69 63 74 65 64 |ved as p|redicted|
|00001560| 2e 20 20 49 20 68 61 76 | 65 20 6e 6f 74 20 74 75 |. I hav|e not tu|
|00001570| 72 6e 65 64 20 74 68 69 | 73 0a 66 65 61 74 75 72 |rned thi|s.featur|
|00001580| 65 20 6f 6e 20 79 65 74 | 20 66 6f 72 20 74 68 65 |e on yet| for the|
|00001590| 20 55 53 20 64 6f 6d 61 | 69 6e 20 61 73 20 77 65 | US doma|in as we|
|000015a0| 20 73 74 69 6c 6c 20 68 | 61 76 65 20 79 65 74 20 | still h|ave yet |
|000015b0| 74 6f 20 66 75 6c 6c 79 | 20 75 6e 64 65 72 73 74 |to fully| underst|
|000015c0| 61 6e 64 20 0a 74 68 65 | 20 70 61 73 73 69 76 65 |and .the| passive|
|000015d0| 20 6d 6f 64 65 20 66 6f | 72 20 74 68 65 20 6c 61 | mode fo|r the la|
|000015e0| 72 67 65 72 20 61 6d 6f | 75 6e 74 20 6f 66 20 74 |rger amo|unt of t|
|000015f0| 72 61 66 66 69 63 2e 0a | 0a 53 74 65 70 68 65 6e |raffic..|.Stephen|
|00001600| 20 4d 69 6c 6c 65 72 0a | 55 6e 69 76 65 72 73 69 | Miller.|Universi|
|00001610| 74 79 20 6f 66 20 53 6f | 75 74 68 65 72 6e 20 43 |ty of So|uthern C|
|00001620| 61 6c 69 66 6f 72 6e 69 | 61 0a 73 6d 69 6c 6c 65 |aliforni|a.smille|
|00001630| 72 40 63 61 6c 64 65 72 | 61 2e 75 73 63 2e 65 64 |r@calder|a.usc.ed|
|00001640| 75 2e 0a | |u.. | |
+--------+-------------------------+-------------------------+--------+--------+