Microsoft Word - 16_Prospero.doc

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1 PROSPERO in the Ariadne Network PROSPERO ｦﾒｦﾓｦﾏ 6ﾒ20ﾋ7ｦﾊｦﾓｦﾔｦﾏｦｦｱｦｩｦ 6ﾒ2ｦｭｦｧ 1. ﾖｸ76 7fi A.S. DRIGAS Applied Technologies Department NCSR ｰDEMOKRITOS ｱ Ag. Paraskevi GREECE dr@imm.demokritos.gr ｸｧ Internet fl0ｸ703 6ｧ90ｹ fi ｧｹｷ30806fl ｸｹ1 020ｸｸ fi ﾌ fi fl ｹ00ｸｧｧ90ｹ fl ｷ30806fl ｧｧ fi fl ｧ8060ｹｹｧｹｹｧ8000ｸｧ8020ｸｹ000fl ｷ30806fl fl fl fl 00fl0ｹｷ30ｸｹ00900fl ｹ06ｧ fl ｹｹ centralized fi ｧ ' ｧ8 fi fl ｧ8000ｸ70409, 06 0ｹ000fl ｧｷ30806fl fl ｧｷ30806fl fl ｧ Internet fl ｧ fl ｹ fl fl fi fl ｷ30806fl ｷ fl ｧ fi090ｸｧｷ36ｧｸｧ fl ｸ708fl ｹ006fi ｸｹ10ｸ700 00fl ｸｹｧｷ30806fl fi ｹ fl ｧｷ30806fl 00fl ｧ fl ｸ708fl ｹ006fi ｮ6ｧｧｧｷ30806fl ｷ3fi ｷ30806fl ｧｹ006fi fl fl ｸ70402fi fl ｹ006fi fl fl ｹ fi ｷ30806fl ｹｧｹ , 0ｹｸ fi fi 0ｹｸ fl0003 indexing 00fl mailing 02fl ｸ fl 00fl fi ｹ006fi fi060ｹｧｹｧ fi fl 00 fl ｧｸ702fi03 02 (query) 020ｸ700 0ｹｸ900, ｷ30806fl fl ｧ fi ｷ3fi fl ｧ8 0ｹ00ｸ706fl fi 020ｸｷｸｸ900. ﾖ00 026ｧｹ fl Prospero fl ｷｧｧ80ｷ fi ｹｱｹ Prospero [27] ｷｹｧ90ｹｹ fl 03.

2 2. ﾌｧ8 ｮ08 Prospero 00fl ｧ900 0ｹ006fi fl ｧ8000ｸｹ00ｸｷ30806fl ｧ8060ｹ fl ｸ900 Internet fl fl ｧｸ700 virtual file systems [28] fl 6ｧ file 040ｹ fl08 fl ｹ006fi ｷ30ｸｸ fl 096ｧ fi fl fl ｧ8000ｸｷ30806fl fi ｷ fl ｧｹｸｷｧｷ36ｧｮ6ｧ fl ｹ06ｧｷ36ｧｸ700 0ｹｸｷ308066ｧ fi ｷ30806fl 03, 0208 retrieval ( 006ｧ ), 0208 indexing ( fl fl0803), 0208 search ( 00 08fi ) organization ( ｧ8000ｸ70409). ｮ fi ｹ000fl ｷ30806fl 03 6ｧ90ｹｷ300fl fl0ｸ fl 08060ｸ fl ｸｧ fl0803 organization ｹ006fi ｹｧｧ fl ｹ fl fl ｷ30806fl ｷ36ｧ , fl 0ｹ00ｸ706fl03 016ｧｧ9030ｷ fl organization ｧ fl ｧ903. ｮ08 Prospero 0ｹ fl ｧ8000ｸｷ30806fl fl 00fl ｧ sites 08080ｹｹ internet archives fl fi ｷ30806fl fl 6ｧ90ｹｸ70900fl 0400 databases ｧｧｮ08 virtual 040ｹｧｹ006fi ｧ links 0400 directories ｸｧ fl ｷ30806fl ｹｷｹ fl ｧｹ000fl (files) ｹｹｷｧ900 virtual 040ｹｹ006fi fl ｷ30806fl ｹ directory 0400 directory 00080ｸｸｧｧ file 040ｹ fl 0302fi ｧｸｧ8 020ｸ700 0ｹｸ fl fl ｧｷ30806fl. ｱｹ000fl directory fl ｧｹ006fi fl ｧ Internet ｹ006fi ｧ90ｹ fl ｹ000fl virtual fi fl ｧｧｹ Virtual system Virtual system 00fl ｧｹ fl ｹ000fl, ｧ903, fl0003, 000ｷｧ903, 0ｹ006fi , ｸｧ fl fl ｧ900 fl ｮ08 040ｹ fl fl fl ｷ36ｧ fl ｧ fl 09 0ｹｹ virtual 040ｹｹ0fi ｸｧ8020ｸｸｧ fl fl fl virtual fi (virtual systems name space), fl fl fl fl ｹ virtual file system ｧｧ903 6ｧｧ900 virtual 040ｹ fl :

3 Conventional link : fl ｹ (link) fi fl 00fl hard link ｧ8 file fi ｹ0fl ｧｧｷ30806fl fl fl fl fl Union link: fl ｹｧ900 directory fi fl fl ｧｸｧ (links) fl ｹ fi ｧ directory ｷ3 00fl fi directory ｧ90ｹ union link. ﾖｧ9000ｸｹ directory 00fl ｧ9000ｸｸｸ700 conventional links ｧ90ｹｹｸｸ700 directories ｧｧ9040ｸ7 016ｧｸ700 union links. Filter : ﾖfl ｧｧｧ links. ｮ08 filter link 02026ｧｧｸｸｧｧ900 directory fl ｹｧｸｧ904000ｸ700 (links), fl ｧ9040ｸｹ link. Link: ﾖfl fl ｧ conventional link 00fl ｧ union link 0300 fi 0ｹ00ｸ706fl03 016ｧｷ3fl Virtual directory : ﾖfl ｧ900 directory ｧｧ900 virtual 040ｹｮ6ｧ fl ｹｹｧｧｸ700 virtual ｧ8020ｸ700: ) ｧｹｷ30ｸｧ8020ｸｹ fl ｸ900 name spaces fl ｹ006fi ｸｷ30806fl ｧｧｸｹｹ fl ) ｧ fl ｹ006fi ｹ fl ｹｧ8020ｸ700 (name space) 6 7) ｸ ) fi fl fl resolve ｹ006fi ｹｸｧ virtual 040ｹｹ000fl directories fi ｹ0fl Prospero 08060ｸｮｸ Prospero 6ｧ90ｹ fl 086ｧ8000ｸ Internet reliable datagram protocol (RDP). ﾖfl ｧｷ3fi RDP 08060ｸｸｧ overheads ｹ fl ｸｧ904000ｸｧ80ｷ servers fi ｹ fl RDP fl ｹ fl ｧｧｹｹｸ remote procedure calls 6ｧｹ Prospero ｧｧｸ fi 6ｧｧｧｧｹｹ fi fi. ｮ fi (requests) fi (responses) 6 7fl ｧ fl fl ｧｹ006fi ｧ90ｹｧｹ fl ｸｸｸｸｸ900. ｮｹ Prospero ｷ30ｸｧ fl0003 0ｹ00ｸ706fl tokens. ｮｧｧｧ

4 ｸ Prospero ｧ80900 fl ｹ00ｸ706fl ｧ ascii 0ｹ fi06 <LF>. ｮｸ Prospero ｧ80ｷｧ : ) Objects ﾇ00 Prospero fl (object) 00fl fi fl fl fl fl ｧ linking. 6 5) Base Type 6ｧ fl Prospero 08060ｸｸｧｧ file fi directory 6ｧ90ｹｧｹ10808 (base type) ｸ708000ｹ fl fl (objects) ｹｧ90ｹｧ80ｷｹｧ8. ﾇｧ fl ｹ10808 (base type) 0208 file ｹｹｧ900, 00000ｸ fl ｹ directory ｹｹｷ30806fl 040ｹ fi 0300 directories. 6 7) Host - specific object names (<hsoname>). ｮ Prospero fl fl fl fi <hsoname> ｧｹｹ fl ' 006ｧ fl ｧｹ , 6ｧｧ fl fl 6ｧｧ fl fl fi ｷ308066ｧｹｧｸ704 fi ｸ703 0ｹ108 Prospero fl fl fl 0608 server 00fl fl ｧ90ｹｧ8 hsonames, 00000ｸ9 0ｹ fl ｷｹ103 servers fl 00 6ｧ90ｹ hsonames ｹ fi03 hsoname (hsoname-type) 00fl ｧ80002 ascii, ｹｸｧ unix pathname hsoname-type 00fl fl fl ｧｧ8 file fi hsoname fl ascii ｷ3fi. ) Version ﾇ00 6ｧ fl ｧ (object) Prospero 00fl fl08 version fl ｸ700 directories 0ｹ fl ｧ fl08 version-number. ｪ fl fl ｧｧ fl ｷｧ fl fl version 0800 fl08 00fl ｧｹｷ36ｧｧ90ｹｧｧｹ1. 00) Object ID field ｮ fl fl ｧ fl ｱ fl08020ｸｹ fl ｧ90ｹ fl 0608 ID 0800 fl ｸ706080ｹ Prospero Prospero file system 5.1. ﾌｧｸ703 6ｧ90ｹｷ fl 0208 Prospero file 040ｹ [29] 00fl ｧｧ virtual fi ｷ308066ｧｧ8

5 distributed file fi fl ｧ903. ｱｧ8 file fi ｹ0fl 020ｸｧ8020ｸ700 (names) ｹ000fl 00fl00 06 fl ｹ006fi , fl Prospero fl fl 020ｸ700 Prospero ｧ9000ｸｧｧ fl ｹ006fi ｧ fi fi ｧ8 020ｸｹ000fl0ｸ fl ｮ fl ｧ900 virtual 040ｹｹｸ709080ｹｹｹｹ fl fl ｹｷ3 00fl ｷｧ8 virtual fi03 02 fi ｧ fl 0608 virtual 040ｹｮ directories Prospero 00fl ｧ90ｹｷ308066ｧｹ000fl fi directories fl ｧｧｧｧ fi ｷ30806fl 03 (distribution) ｹｹ fl ｧ8 file fi ｮ6ｧ Prospero ｧ90ｹｧ fl fl customization ｧｸ700 0ｹｸｹ Directory Prospero ｱ0208 Prospero file 040ｹ fl fi virtual ｧ8020ｸ700. ｮ08 root ｧｧ (links) ｹ000fl fi directories ｧｹ006fi ｮ links ｹ1 020ｸ700 directories fl 00 00fl ｸｹ1080ｸｸｧ8, union, filtered. ｮ08 conventional link 00fl ｧ hard link ｧ file 040ｹ fl fl fi ｹ fl directory. ｱ0208 link ｹ000fl 6ｧｧ fl ｷ30806fl fl fl fl fl fl fl 6ｧ fl fi ｧ90ｹｹｸ fl ｮ08 union link fl ｷ fl directory ｧｹ link 00fl fl ｧ linked directory fl ｧ virtual directory ｧ90ｹ link ﾇｹ virtual directory 00fl ｧ9000ｸｸ700 conventional links 00080ｸ fl ｹｸ700 directories ｧｧ9040ｸ7 union links. ｮ 0ｷ3fl ｹｷｹ fi ｹ10808 link ｧｹｸ700 links ｷ3 fl ｧ directories 020ｸ fl0ｸ paths ｧｧ links 0ｷ3fl ｸ700. ﾇ00 0ｷ3fl fl fl links 00fl ｷｹｹ006, ｧｹｧｧ9000ｸ700 links, fi fi ｹ links 08080ｹｧｹ directory. ﾇ00 filter link ｧ90ｹｷ308066ｧ fl ｷ3fl ｧｹｷ3fl ｸ Prospero file 040ｹｹ fl Prospero ｸｧ directory ｧ90ｹｧｹ000fl Prospero. ｱ0208 directory ｧ8060ｹｧｹ000fl ｹｧ fl shell ｹ006fi fl fl fl ｸ fi :

6 source /path/vfsetup.source path 00fl path directory ｧ90ｹｧｹ000fl Prospero, 00fl ｸｷ fi cshrc 060ｹ000fl ｹ006fi fi vfsetup fl ｧｹ006fi ｧｧｧ90008 virtual 040ｹﾇｧｸ fi: vfsetup guest 08 0ｹ006fi ｧ virtual 040ｹ guest. 6. Prospero clients 0406 clients Prospero file fi fl 00 00fl fl menu browser 00fl0200 clients fl ｧ903 (comand-line clients). O menu browser 6ｧ90ｹ fi gopher client fl ｹｧ fl fl fi menu. ｮ08 menu ｷ3 00fl menu browser 00fl fi ｹ006fi fl ｹ006fi ｧ90ｹｧ fi vfsetup ｧ virtual 040ｹｧ8060ｹｧ directory /MENU ｷ3 00fl ｹｱ fl fl08020ｸｷ3 00fl ｧ900 default menu. ﾇ00 6ｧｹ menu browser 00fl ｧ fi , 0ｷ3080ｹ1 6ｧ90ｹ fl fi 040ｹｧ virtual 040ｹ ( fi vfsetup), ｧ link 0902 fi menu linkname browser 09 0ｹ fi ｷ3 00fl link. 00 0ｹ fl browser ｷｸｧ90ｹｧｷ36ｧｹ006fi ｧｧ fl ｹｧｹ103 0ｹ fi ｸ fl ｸｧ8020ｸｸｹ fi fl 00fl : ｹ000fl ｹ000fl08 (file), fl fl00 06 text fl ｷ fl ｹ006fi ｧ90ｹ00006 fl fi , 020ｹ1080ｸｸ fl ｹ fi ｹ000fl ｧ90ｹ00006 data ｹ006fi fl ｹｹ > ｷ36ｧ directory ( ｹ1 ). ﾖｧｹ006fi fl ｹｧ90ｹｸ fi u fl fl ｹｹ1. ] ｷ36ｧｧｧ service fl ｧ fl ｧｸｸｧ telnet. : ｷ36ｧ fl 00 08fi (search) ｧｧ fl ｧ fl fi03 00fl ｷ36ｧ fl ｧ8020ｸｧｧ fl. ｱ fi ｷ fi ｹ006fi fl fl Prospero ｸ fi q.

7 fl virtual fi ﾌｧ fl ｸｹ fl Prospero file fi fl fl virtual fi ｹ06ｧ fi newvs fl ｧｸ fi03: newvs [-v#] [-e] [host [name [home [owner [desc_file]]]]] fi 0302fi 0ｹ fl ｹ fi (administrator) Prospero, ｹ006fi ｧ fi virtual 040ｹｸｷ30806fl ｷ36ｧｸ fl 096ｧｧ fl ｹ administrator Prospero ｹｧ fi newvs fl 0ｹ00ｸ706fl03 016ｧｧｧｹ006fi ｸ76 7fi 016ｧｸｹ000fl0ｸｸｹｷ fi virtual 040ｹ , virtual fi , 0208 home directory, fi fi , ｧｹ000fl ｷ3fi03 (description file). 00 newvs fi fl fi virtual 040ｹ , fl ｧｧ fl ｸ700 virtual ｧ8020ｸｹ fi ﾖ08fl ｧ links ｸ virtual 040ｹｹｧ [-e] command line newvs ｧｷ3fi 020ｸｸｸ700 links ｧ [-v] ｧｧｧ verbosity level 00080ｸ703 0ｷ3 fl fl00 01 : ｮ0603fi [-v] ﾖ080007fi ｧ (default) ｪｧｹ006fi ｹ fl ｧｹ000fl ﾖ fl fl fi ｧ fl ﾖ030ｷ3 00fl ｧ fi fl 3 ｱ02 036ｧｧ fi03 4 ｱ02 036ｧｧ fi fi ｧｮ6ｧ fi newvs 6ｧ90ｹ fi ｧｹ000fl ｷ3fi03 (description file) ｧ fi vfsetup fl ｧ80ｷｧ90ｹﾇ virtual fi ﾖ fi vfsetup fi vfsetup ｸｧ90008 virtual 040ｹ , ｸｸｧｧｧ shell ｧｹ006fi ｹ fi03 00fl00 06 : vfsetup [ -n host path, [ -r,v ] name, -f file]

8 fi 0302fi fl ｷ fl fl fl ｧ , ｧｧ8060ｹｹ000fl08 /.virt-sys fl ｧ80ｷ virtual 040ｹ fl ｷ30806fl ｧ fi [-v] ｧ fl virtual directory fl ｧ90ｹｷ3fi fi ｧ [-n] 08 fl ｹ0 00fi ｸ fl ｷ virtual directory ｧ90ｹｷ3fi virtual fi ｱｧｹ000fl0803 /.virt-sys ｧ fi vfsetup fl fl fi ｹ000fl fl 00 6ｧ90ｹ fl ｧ [-f]. ﾖfl fl ｸ70900fl 016ｧ virtual 040ｹﾖ6ｧ fi vfsetup fl ｧ [-r] ｧ default virtual 040ｹｹ fi ﾖ6ｧ fl ｧ fl ｧ directory /VIRTUAL-SYSTEMS ｧ90ｹｹ1 virtual fi ﾇｧ virtual fi fl00 06 guest fl fl setup fi : vfsetup guest ｧｹ006fi ｧｹ006fi virtual fi fl : i) fl directories vmkdir directory fi 0302fi fl 6ｧｧ90008 virtual directory ｧｧ900 link parent directory. ii) fl links. vln [-u, -s, -m] [-e[am], -n host] oldname newname fi 0302fi ｧｧｹ link ｧ900 directory ｧ [-u] fl ｹ link 00fl ｧ900 union link. 00 [-s] ｧ fl link 00fl00 06 symbolic ｧ [-e], [-n] ｹ fi (host) ｧ90ｹｹ008. ｮ08 [-e] fl fl fl ｧｹ (host) ｧ90ｹｧ Prospero server. Oldname 00fl fi ｧ8060ｹ fl fl fl link. Newname 00fl ｹ link ｧ [-e] fl fl ｧｧ fl ｷ30806fl ｹｧ fi ｧｧ fl ｧｧ [-e] 00fl00 06 : GOPHER host (port) gopher-selector { BINARY or TEXT} ｧ fi ｧ fl ｧ fl fl fl 04026ｧｧ server ｧ90ｹｹ host port 6ｧ900 gopher-selector string, fl ｧ fl08 096ｧ fl fl binary fi text ｷ3fi. TELNET host introductory-message. ｮ08 introductory-message fl ｸ fl0ｸｷ fl ｹ006fi fl fl. AFTP host path {BINARY or TEXT} ｧ fl fl fl fl ｸ ftp 0ｹｸ fl binary 00fl text ｷ3fi

9 AFS afs-path. H 036ｧｧ fl ｧ fl fl ｧ Andrew file 040ｹ [30]. ｮｧ fl afs-path ｧ fl fl : vln -e GOPHER 05ithaki.servicenet.ariadne-t.gr(70)ｨｪ 0/gopherdata/Welcome_to_AriadNET TEXT Welcome_to_AriadNET ｹ000fl fl fl fi vget fi 02066ｧ90ｹ fi menu. vln -e TELNET 05DOWNWIND.SPRL.UMICH.EDU(3000)ｨｪ 0505 weather vln -n 05zephyr.isi.edu(1570)ｨｪ 05GOPHER-GW/gopher.micro.umn.edu(70)/1/' minnesota-root-gopher iii) ｷ3fi ｧ link. vrm link fi 0302fi fl0ｷｧｧ90008 link directory. ﾖfl ｧ fl fi vrm fl0ｷ link, fl ｹ0fl ｧ8060ｹｧｧ8060ｹ link v) ﾖ fi vls fi 0302fi 0ｹ fl ｷ3 00fl (listing) virtual directories ｹ fi fi03 00fl00 06: vls [-A, -c, -f, -u, -v] [-a[attribute]] path ﾖ6ｧ path 00fl ｧ directory ｷ3 00fl links ｧ90ｹ , 00000ｸ path 00fl fi ｧｹｧｷ3 00fl ｷ30806fl ｧ90008 link ｧ [-v] fl ｷ36ｧｹｧｹｧ fl link ｧ [-u] fl ｷ36ｧｸｹ1080ｸｸｧ9000ｸ700 (object type), 020ｸｹ1080ｸｧ fl0803, ｸ700 0ｷ3fl ｸ fl ｧｧ90008 link ｧ [-c] ｧ fi vls ｷ3 00fl links ｸｸｧ90ｹｧ f ｧｷｹ union links ｹｹｧ a fl ｷ36ｧｸ700 0ｹｸｸｧ8020ｸｸｧ9000ｸｧ90ｹｧｹ06ｧ link. ｮ6ｧｧｧ90ｹ fl ｧ a ｷ3 00fl ｸ706fl ｸ700 links fi vls 00030ｷ3 00fl ｹ006fi link ｹ008 (target) link ｹ link fl ｧｹ (host) ｧｹ fi ｷ36ｧｸｷ300060ｸ700 links ｹｧｹ103 0ｹ fi fl 020ｸ fl0ｸ700 00fl00 06 : U ｷ36ｧ union link (00fl0200 directory fi directory ｹ000fl08) I ｷ36ｧ links ( 060ｹ000fl08, directory fi directory ｹ000fl08) (05 05) ｷ36ｧ link ｹ000fl08. S ｸ708000ｹ10006 symbolic link. E ｷ36ｧｸ link ｧ fl ｹｧ90ｹ00006 Prospero.

10 D ｸ708000ｹ10006 directory. B ｷ36ｧ directory ｹ000fl08. O ｷ36ｧ fl fl08 6ｧ90ｹｧｹｧｸ706fl (attributes) ｹ * ｪ fl ｷ3fl ｹｧ link. v) ﾖ fi vcd fi 0302fi fl ｧｹ006fi ｧ virtual 02066ｧ90ｹ00800 directory. ﾖ6ｧｧｧｹ (08 066ｧ ) ｧ90ｹｸ70600fl ｧ90ｹ fl 0208 home directory ｹ006fi ｧ fl ｧｧｹ006fi fl ｧ directory ｧ union link. vi) ﾖ fi vwp fi vwp 00030ｷ3 00fl ｹ006fi ｧ90ｹ directory ｹ06ｧｧｧ root directory virtual fi fi fi03 00fl ｷ30806fl ｧ80ｷｷ36ｧｷｹ00ｸ fi vii) 03006ｧｹ000fl ｧｧｧｧｹ000fl ｧｹ006fi fl ｹ00900fl ｹ : ) Prospero compatibility fi0109 6ｧ90ｹ fl (link) ｧｹ000fl fl fl ) ｹ fl fi03 vget, ｹ fl 03 00fl00 06 : vget virtual-file [local-file] fi 0302fi fl 00 0ｹ fl ｧｧｹ000fl fl08 00fl ｧｧ9040ｸ anonymous FTP. ｮ08 virtual-file 00fl ｹ000fl fl Prospero file 040ｹ Local file 00fl ｹ fi ｹ000fl ｧ90ｹ00800 directory fi vget fl telnet ｧ fl ｧｧｹ TELNET. viii) ﾖ fi set-atr ｮ 0ｹｧｸ706fl (attributes) ｧ90ｹｹ06ｧｧ80ｷ30806 links ｹｹｧ fi03 vls, ｹｹ fi set_atr. 8. ﾖｧ fl Prospero server ﾌ fl Prospero server fl userid groupid 016ｧ8020ｸ fl ｧ90ｹ server. ｮ08 directory ｹ00002fl ｧ90008 userid fl ｧ90ｹ fl ｷ30806fl virtual fi directories. 04 server 060ｹ0fl fl fi:

11 pstart [hostname] ｱｸｸ904000ｸ server fl fl fi (host) fl fl ﾖ6ｧ hostname fl command line ｧ fl ｧ fi ｧ90ｹ server fi pstart ｧ directory ｹ userid 016ｧ8020ｸ fl ｧ90ｹ server fl directory server (dirsrv) ｧｧ directory server (dirsrv) fl ｧｧ fi pstart fl fl ｧ login (fi su) ｷ userid ｧ90ｹｸ fi dirsrv, ｹ fl 03 00fl : hostname dirsrv [ -p#portnum] [-m] root shadow data aftpdir afsdir ｷｧ fi03 dirsrv ｹｸｧｧ90ｹ p#portnum: fl ｧ fi internet server. -m: fl directory server ｹ00ｸ fl ｧ fi 00fl ｹ006fi debugging. root: 00fl root fi , fl ｹ000fl fl ｧ8020ｸｹｹ Prospero file 040ｹ shadow : 00fl directory ｧ90ｹｷ30806fl ｹｧｹ000fl directories. data: 00fl directory 016ｧ8020ｸ fl ｹｹ virtual directories ｹｧ aftpdir, afsdir : 00fl ｸ700 directories fl 6ｧ90ｹ FTP Andrews File System 0002fl ｹ0. hostname : 00fl fi fl ｧ90ｹ server ｹ000fl ｸ70402fi fl server ｹ06ｧｧ903 pstatus padmin. 00 6ｧ fi03 pstatus 00fl status server, 0902 fi ｧ90ｹ00006 fi 000ｹｹ fi03 padmin 00fl : padmin [-D#] [-N<priority>] [-force] { -kill -restart -motd { -set <parameter>} {-get <parameter>} {-command [-headers -1] } } [ <server>]

12 -D#: fl debugging -N: fl ｧ query -kill: ｧ fl server -restart: ｧ server 0ｷｸｹ0fi 02 binaries -force: fl, -kill restart fi padmin ｸｧ set: fl ｧｧ server ｧ fi fl 00 00fl ｧ string fl padmin fi ｧｧ input 0208 text fl server. -command: ｧ raw ｹ Prospero 08060ｸｧ server. -header: ｧ fi, fl fl ｧ command, ｧｹ Prospero 08060ｸｧｧｧ90ｹｧ version ｸ motd: 00fl ｹｧ set 9. Prospero client - server ｮ08 Prospero 040ｹｧ90ｹ fi server client ｷｧ , ｷ fi ｧ resolve fl client 6ｧ9060ｹｷ3fi ｧ fi directory servers ｹ0 00fi fi ｹ0 006ｧ fl fl ｧ directories ｸ708000ｹ server ｧ90ｹｧ80ｹｹｧ90008 directory ｧ90ｷｧ client. Server 04 Prospero directory server 6ｧ90ｹ fl ｧ900 directory identifier ｧ link fl 08 client. 04 server ｧ90ｷ fl00 02 links directory, ｧｧ fi links fl08020ｸｧ90ｹ fl 016ｧﾇ00 link Prospero fl ｹ fi fl08 00fl ｧ fl ｧｹ (identifier) ｧ fl ｧ90ｹｹｮ 0ｹｧ fl ｹｸｹｹｧｮｹ000fl Prospero server 00fl ｹｸ (identifier) fi ｸ706fl fl fl ｹ

13 ｮ08 Prospero link fl fl link, 0902 fi 00 00fl00 06 union link fl ｷ3fl ｹ00002fl ﾖ6ｧｹ00803 (target) link 00fl ｧ directory, link ｧ fl ｷ30806fl resolve directory 00060ｹｷ3fi directory server fi fl link. ﾖ Prospero server ｧ fi ｷ30806fl ｹｧ fl ｧ96 70ｹ directory server 6ｧ90ｹｸ702fi03 02 (query) 040ｹｧ fi ｹ data ｧ90ｹｧ client. ﾖ040ｸｧ8 08 server 0ｹ fl Prospero fi ｧｷ30806fl 020ｸ700 directories ｸｹｧ8 020ｸｧ9000ｸ700. Client. 04 Prospero client 6ｧ90ｹ fl fi fl ｧ (resolve), ｧ8 0ｹｧｧ90ｹｧ9060ｸ70409 (updates) 0400 directories ｧ Prospero ｹ006fi ｹｸｸ8086ｧ8060ｹｷｧ fl fl link ｧｷ fi compatibility fi Prospero fi ｹ fl ｧ8020ｸｧ virtual fi fl ｹ (resolve) fl ｧｧｧ90ｹ fi Prospero ｧ8 00 0ｷ308066ｧ8 040ｹｧｧ90ｹ00800 directory root directory virtual fi ｧｹ006fi fi 016ｧｷ fi fl , ｨｬ0008fl ｨｬ (resolve) 016ｧ , 04026ｧ fl (query) ｹ directory server, 0ｹｸ Prospero 08060ｸ , resolving 016ｧｹ000fl ｹ00ｸｧ Archie ｧ8000ｸ70409, 06 0ｹ000fl ｷ30806fl 020ｸｧ8 0ｸ700 0ｹｧ8 0ｸ700 FTP sites 6 7fl fi ｸ700 archie servers. 6ｧ80900 Archie server fl 0306 database ｧ90ｹｹ000fl 020ｸ700 directories internet FTP sites 040ｹ1030ｷ30ｸｧ fl ｹ000fl To software Prospero ｧ90ｹ fi archie client fl fl ｧ Prospero. 04 client archie ( ｧ Prospero module) fl ｹ006fi ｧ80ｹ database 020ｸ700 archie servers 0ｹｸｧｧ fl. ｮｧ fi fi fl ｧｹ000fl ｹ00002fl ｧ fl 00080ｸ fl fi fl , 0902 fi 0208 path fi (host) fi 036ｧｹ fl archie client 6ｧ90ｹｷ3fi : archie string archie client fl archie server fi ｸ704026ｧ8 ftp sites ｹ000fl ｧｧ90008 string.

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13ｨ 00ｨ 0001ｨｨ 00ｨｲ 1:28ｨC3: fl apple fi apple fl0ｸ90ｸ

13ｨ 00ｨ 0001ｨｨ 00ｨｲ 1:28ｨC3: fl apple fi apple fl0ｸ90ｸ 13771 0100096 76ｦ0 ｨｨapple07apple07016ｦ0 ｨ 00090001090902fl 1 1ｨC3 ｨｹｪ066 5fl0ｸ70000000901 ｨ 0009000109090200, 060ｸ800 05040909fl. ｨｹ 0ｸ802 6 5 09096 7006ｦ0000909 6 507090200 016ｦ0006ｦ0026ｦ0 0100 6ｦ0apple6ｦ0