Usage of Internet Applications

March 10, 1998

Jung Sung-wuk

SPARCS, KAIST

allaplus@sparcs.kaist.ac.kr

Usage of Internet Applications

Brief Contents

Telnet ARA BBS Telnet commands Telnet Servers

FTP FTP Commands Anonymous FTP Advice on FTP

News Group Examples Outlook Express

WWW WWW Internet Address Web Compass Search Engine

telnet

Definiton Remote login

When do we use this? BBS Online Service

DB Search

ARA BBS

allaplus@gura.kaist.ac.kr4>telnet ara.kaist.ac.krTrying 143.248.8.5...Connected to ara.kaist.ac.kr.Escape character is '^]'. SunOS UNIX (ara) login: bbs ::::: ::::/:::: //| ||\ ||\ ||\ ||\ // TM K.A.I.S.T ::SPA\RCS:: //_| ||/ ||_\ ||< ||< \\ --==##==-- ::::/:::: // | ||\ || \ ||/ ||/ // UNIVERSITY ::::: ----------------------------- Since 1991.12.7 *!* 아라의 세계에 오신 여러분을 환영합니다 *!* -=[ 아라비비 ]=- 에 오신 것을 환영합니다 . 사용자 명을 입력해 주세요 ( 새로 오신 분은 'new', 그만두시려면 'off')사용자명 (UserId) : aplus27

비밀번호 (Passwd) :

Telnet Commands

o - opencl - closeq - quitCTRL - ]

Telnet Servers

Telnet connection Servers kids.kornet.nm.kr ara, csqueen, ms, math1 posb.postech.ac.kr

daidun, chiak, sparcs, adam, volt ....

Online Services www service

http://libr0.kaist.ac.kr/~opac

Connect open and quit

Directory move and file search cd and lcd ls, dir

File Transfer get, put mget, mpu

set bin, ascii

FTP commads

Anonymous FTP

Everybody can accessOnly need your E-mail address

allaplus@gura.kaist.ac.kr17>ftp ftp.kaist.ac.krConnected to cair-archive.kaist.ac.kr.220 cair-archive FTP server (Version wu-2.4(7) 1997 년 2 월 11 일 화요일 오후 01 시08 분 27 초 ) ready.Name (ftp.kaist.ac.kr:allaplus): anonymous331 Guest login ok, send your complete e-mail address as password.

Password:

Anonymous FTP Servers

ftp.kaist.ac.kr ftp.korenet.nm.kr gura.kaist.ac.kr cair.kaist.ac.kr camis.kaist.ac.kr...

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command : cd /pub

Advice on ftp

Select the nearest server Check the local time Change your directory in advance Be careful when overwriting Find README.txt Background job. ftp -n hostname << EOF

user login passwdcd directory_nameget filenamebyeEOF

news group example

Han.* han.comp.lang.c han.rec.sports.football han.rec.humor

Others comp.lang.java.programmer alt.manga alt.binaries.pictures.art

about 20,000 news groups

WWW(World Wide Web)

Hypermedia and Hypertext HTML HTTP

History of WWW Born in 1989

Browser Mosaic Netscape Communicatoer Internet Explorer

Internet address

World class org, com, edu, gov, mil, net

Country kr, ca, jp, sk, etc.

In some countries ( incl. Korea ) ac, co, go, nm, or, re, ...

Examples www.kaist.ac.kr, www.chosun.com, www.w3.org, www.chollian.net

Web Compass

Search Engine Altavista - www.altavista.digital.com Infoseek - www.infoseek.com

Directory Service 심마니 - simmany.chollian.net 네이버 - www.naver.com Yahoo - www.yahoo.com

Search Example

Altavista - www.altavista.digital.com AND, “

“chanho park” AND “Piazza”

OR - NEAR

“Michael Jackson” NEAR Korea

Naver - www.naver.com Meta search engine