system02.dvi

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1 :15-14:45 : IP DNS SSH SCP 1 HTTP 2 FTP TelnetGopher HTTP HTTP 2 IP 2.1 IP PC1 1 IPv4 IP (2 32 ) IP IP LAN LAN LAN ABC 3 (Table 1) 2.2 LAN Table LAN IP IP 32 IP IP IP IP (Fig. 1) IP

Fig. 2 Fig. 1 2.3 126.22.99.144 10.25.1.02 (Fig. 2)LAN A10.25.1.5 A 10.25.1.5 126.22.99.144 A (Fig. 2) 2.

2 Fig. 2 Fig (Fig. 2)LAN A A A (Fig. 2) 2.4 IP NAT NAT IP NAT Network Address Translation NAT IP NAT TCP/UDP ICMP rsh 3 URL URL WWW URL URL http ftpwaismailtotelnet :/// www mikilab doshisha.ac.jp (Fig. 3) IP Fig. 3 index.html / 4 DNS IP 2

3 IP DNS DNS DNS IP OS TCP/IP DNS LAN DNS DNS A DNS A IP DNS A jp DNS jp DNS IP ac DNS IP doshisha DNS IP mikilab.doshisha.ac.jp IP doshisha.ac.jp DNS mikilab.doshisha.ac.jp IP DNS A RSA 5.1 SSH SMTP POP Fig. 5 Fig. 5 Fig. 4 DNS SSH SSH SSH SSH Fig. 6 SSH 5 SSH UNIX OS Telnet r (rlogin, rsh, rcp) SSH(Secure SHell) SSH Fig :mikilab.doshisha.ac.jp:25 3

4 8025 SSH mikilab FTP FTP PASV(Passive) FTP IP PASV IP mindterm FTP 6.2 Fig. 7 3 Fig SCP SCP SSH UNIX rcp rcp rcp SCP SCP 6 SSH 6.1 SSH 2 (common-key cryptography) 1 (public-key cryptography) SSH SSH DES (Data Encryption Standard) 1970 IBM bit 64 bit 3DES DES 3 DES SSH2 IDEA (International Data Encryption Algorithm) bit 64 bit SSH1 Blowfish Bruce Schneier 32 bit 448 bit SSH1 128 bit 64 bit 4

5 W. Diffie M. Hellman Fig. 8 (Private key) (Public key) 7 SSH UNIX IP SSH SSH SSH1 SSH2 7.1 Fig. 8 SSH RSA DSA RSA 1977 R. L. Rivest, A. Shamir, L. Adelman 3 3 SSH PGP DSA(Digital Signature Algorithm) 1994 DSS(Digital Signature Standard) SSH2 session key SSH1 RSA session key (RSA )SSH2 RSA DSA session key Diffie-Hellman SSH1 RSA RSA host-key server-key public host-key public server-key 3. host-key known host key host-key host-key bit session key session key public host-key public 5

6 server-key session key 5. session key private host-key private server-key session key Host key 1024-bit RSA key DSA key SSH 1 sshd ssh-keygen SSH SSH public host-key known host key SSH public host-key yes Private host-key SSH Server key Server-key 768-bit RSA key sshd 1 Server-key host key Server-key Session key SSH Session key UNIX 1 UNIX OS rhosts rhosts SSH SSH SSH1 rhosts rhosts SSH2 rhosts PortForwarder UNIX session key telnet SSH ssh-keygen 1 public-key private-key SSH1 RSA key SSH2 DSA key passphrase private-key passphrase private-key public-key SSH authorized keys RSA 1. SSH public-key SSH 2. SSH authorized keys public-key public-key ( challenge ) 6

3. private-key passphrase challenge 4. MD5 5.

9 PuTTY 1997 Simon Tatham Windows SSH Windows 95/98/Me/NT/2000/XP PuTTY Telnet SSH PuTTYSCP PSCPSFTP

2 PuTTY 8.2.1 PuTTY museion sharedsoftwares putty Program Files putty.zip puttykjbin.

7 3. private-key passphrase challenge 4. MD5 5. MD5 private-key passphrase challenge 8 SSH2 SHH1 SSH2 SSH1 SSH2 SSH2 8.1 PuTTY Fig. 9 PuTTY 1997 Simon Tatham Windows SSH Windows 95/98/Me/NT/2000/XP PuTTY Telnet SSH PuTTYSCP PSCPSFTP PSFTPTelnet PuTTYtel PuTTY PSCP Pagent PuTTYgen Fig. 10 Key passphase Confirm passphrase (Fig. 11) 8.2 PuTTY PuTTY museion sharedsoftwares putty Program Files putty.zip puttykjbin.zip putty puttygen.exe PuTTY Key Generator [Parameters] SSH2 DSA (Fig. 9) Generate (Fig. 10) Key fingerprint Key comment Fig. 11 passphrase Save private key putty id dsa (.ppk ) putty.exe 7

mikilab.doshisha.ac.jp SSH mikilab PuTTY Security Alert (Fig.

jp-putty.ssh cd.ssh vi authorized keys (Fig. 13) Fig.

13 PuTTY Key Generator Public key for pasting into OpenSSH

14) exit PuTTY PuTTY Key Generator mikilab (Fig.

8 mikilab.doshisha.ac.jp SSH mikilab PuTTY Security Alert (Fig. 12) Fig. 14 Fig. 12 PuTTY Security Alert mikilab.doshisha.ac.jp-putty.ssh cd.ssh vi authorized keys (Fig. 13) Fig. 15 Putty id dsa.ppk (Fig. 15 ) Fig. 13 PuTTY Key Generator Public key for pasting into OpenSSH autorized keys2 file: () mikilab.doshisha.ac.jp-putty (Fig. 14) exit PuTTY PuTTY Key Generator mikilab (Fig. 15 ) SSH SSH 2only( 2) Fig. 16 Passphrase Passphase (Fig. 16) Passphase (Fig. 17) PortForwarder SSH2 PuTTY puttyjp.exe 8

Fig. 17 mikilab 8110 mikilab.doshisha.ac.jp:110 (Fig. 18) Fig. 19 2 Fig. 18 1 Fig. 20 3 Fig. 19 8025 mikilab.doshisha.ac.jp:25 Fig.

9 Fig. 17 mikilab 8110 mikilab.doshisha.ac.jp:110 (Fig. 18) Fig Fig Fig Fig mikilab.doshisha.ac.jp:25 Fig. 20 Fig. 21 Passphase 8.3 WinSCP WinSCP Windows SCP Win- SCP museionsharedsoftwares winscp Progrum File Fig

23 SSH 2only Stored sessions Save OK Fig. 24 Fig.

26 FTP Windows WinSCP GUI 9 LP-8700PS3 Windows

YYmuseionYsharedYsoftwaresYdriver LP-8700PS3 PC

10 WinSCP2.exe Fig. 22 Host name mikilabuser name Private key file putty id dsa.ppk mikilab Fig. 25 Fig. 22 WinSCP Fig. 26 WinSCP Fig. 23 SSH 2only Fig. 23 SSH 2only Stored sessions Save OK Fig. 24 Fig. 24 login Passphrase Fig. 25 Fig. 26 WinSCP Fig. 26 FTP Windows WinSCP GUI 9 LP-8700PS3 Windows DocuDentre 280 DocuCentre 280 LP-8700PS3 YYmuseionYsharedYsoftwaresYdriver LP-8700PS3 PC (Fig. 27)LP-8700PS3 SETUPW2K.CMD (Fig. 28) Fig. 29 LP-8700PS3 Fig. 30 Fig. 31 OK. EP- SON LP-8700PS3 10

11 Fig. 35 IP Fig. 36 Fig. 33 (Fig. 37) TCP/IP PORT OK Fig. 27 YYmuseion/shared/softwares/driver Fig. 28 SETUPW2K.CMD Fig. 32 Fig. 29 LP-8700PS3 Fig. 33 Fig. 34 Fig. 30 Fig. 31 Fig. 32 Fig. 33 TCP/IP (Fig. 34), Fig. 35 IP EPSON LP-8700PS3 11

12 Fig. 36 Fig. 37 DocuCentre 280 DocuCentre 280 EPSON LP-8700PS3 12

dvi

dvi { SSH { 3 3 1 telnet ID ( ) ID ( 1) SSH(Secure SHell) (ID ) SSH SSH SSH login : userid password : himitsu login : userid psaaword: himitsu login : userid password : himitsu 1. Host 11 7 UNIX ( sakura)