SPARCS 11 Sunguard
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Transcript of SPARCS 11 Sunguard
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Wheel SeminarWEB & E-MAIL
SPARCS 11Sun-
guard
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WEB ?Basic Concept of “WEB”
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“(Web == Service) = True”
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WEB ?Basic Concept of “WEB”
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‘ABC, 가나다’( 문자 )
( 영상 )
( 음성 )
MultimediaInformation
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MultimediaInformation
WEB ?Basic Concept of “WEB”
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World WideWeb
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WEB ?Basic Concept of “WEB”
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WEB = the Mesh + Mine of Information
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WEB ?Brief History of “WEB” – Who & Why
Who Created ‘WEB’ ?- Tim Berners Lee- Robert Cailliau
CERN laboratory in SwitzerlandCERN = European Council for Nuclear Research
Why made ‘WEB’ ?To make Information Interchange easily and effectively
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WEB ?Brief History of “WEB” – Tim Berners Lee
Who is ‘Tim Berners Lee’ ?- The Father of ‘World Wide Web’- Developed ‘Enquire’ ‘WWW’- Designed >> ‘HTTP(HyperText Transfer Protocol)’
‘HTML(HyperText Markup Language)’‘URL(Uniform Resource Locator)’
- Developed ‘Web Browser, Mosaic’- Established ‘W3C(World Wide Web Consortium)’
WOW
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WEB ?Brief History of “WEB” – Enquire & Mosaic
Enquire!?- This concept is that… “Wherever computer is exists, if we can read data of it, that will be able to compose the huge information space.”
Mosaic!?- The first Web Browser!!- The first Multimedia GUI program!!- It had been developed since 1987, but in 1997(January 7th), it stopped.
(After story…Mark Andreesen & James Clark Mosaic Communications Corp. Spyglass Mosaic Internet Explorer(Licensed by Microsoft.)
http://en.wikipedia.org/wiki/Mosaic_(web_browser)
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WEB ?Introduction of Web Browser
What kinds of…?- Internet Explorer, Mozilla Firefox, Opera, Safari, Google Chrome, Navigator, Avant, Flock, Kmelon, MineField, SeaMonkey, Shiretoko, WebMaster, JW Browser, Road Browser, The World, etc.
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WEB ?Introduction of Web Browser
Web Browser Web Server
HTTP
suppose Web Stan-dards!!
What is that?
http://en.wikipedia.org/wiki/Web_standards
HTML, XML, XHTML, Graphic File Format,
CSS, JAVAscript(DHTML), etc.
http://en.wikipedia.org/wiki/Web_Browser
And… TRANSLATE them!!
But, Now… Something is different
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WEB ?Brief Introduction for Web Server
as Software…- Client/Server Model & Request/Response- Kinds of PROGRAM- Port Number : 80- Examples : APACHE, IIS, LOTUS DOMINO SERVER, etc.
http://en.wikipedia.org/wiki/Web_server
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WEB ?Brief Introduction for HTTP
HTTP(Hyper Text Transfer Protocol)- This is PROTOCOL!- Between Client & Server, this is the “Request/Response Protocol”
Client ServerRequest
Response
HTML, CSS, JavaScript, etc. + Error Code
http://ko.wikipedia.org/wiki/HTTP#.EC.98.A4.EB.A5.98_.EC.BD.94.EB.93.9C
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WEB ?Brief Introduction for URL
URL(Uniform Resource Locator)- Form! & Protocol!- We can manage and describe the addresses of accessible resources easily with URL
Form of URLURL = Protocol + Domain Name(or IP address) + Di-rectory
Telnet, FTP, HTTP- Telnet is the method that makes clients who have the authority to use the host computer be able to access to other’s host computer remotely.- This is also protocol which is based on TCP/IP- Difference with ‘FTP, HTTP’ is that client can “Log on”
http://terms.co.kr/Telnet.htm
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WEB ?Brief Introduction for URL
URL(Uniform Resource Locator)- Form! & Protocol!- We can manage and describe the addresses of accessible resources easily with URL
Form of URLURL = Protocol + Domain Name(or IP address) + Di-rectory
Telnet, FTP, HTTP- File Transfer Protocol- To transfer files between computer and computer.- Based on TCP/IP- Security Issue : Password is not encrypted.
SFTP(through SSH), SCP(Secure CoPy)http://terms.co.kr/FTP.htm
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WEB ?Brief Introduction for URL
URL(Uniform Resource Locator)- Form! & Protocol!- We can manage and describe the addresses of accessible resources easily with URL
Form of URLURL = Protocol + Domain Name(or IP address) + Di-rectory
Telnet, FTP, HTTP- Explained before… So! SKIP
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WEB ?Brief Introduction for URL
URL(Uniform Resource Locator)- Form! & Protocol!- We can manage and describe the addresses of accessible resources easily with URL
Form of URLURL = Protocol + Domain Name(or IP address) + Di-rectory
Server Name + Group(Apparatus) Name + Characteristic Code
http://terms.co.kr/DNS.htm
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WEB ?Brief Introduction for URL
URL(Uniform Resource Locator)- Form! & Protocol!- We can manage and describe the addresses of accessible resources easily with URL
Form of URLURL = Protocol + Domain Name(or IP address) + Di-rectory
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WEB ?Brief Introduction for HTML
HTML(Hyper Text Markup Language)- Markup Language!!(with CSS, Script)
: Describe how to show Texts or Images on Web Browser- Be formed with Tag attributes
What kinds of…?(Doctypes)Strict, Transitional, Frameset
http://www.w3schools.com/
“Details about HTML”
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E-Mail ?What is E-Mail ?
@Electronic Mail BBUE-ING!
BBUE-ING!
E-Mail(Electronic Mail)- A method of exchanging digital messages from an author to
one or more recipients- E-mail Address : User_ID@Mail_Server_Name
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슬라이드 쇼가 끝났습니다 . 끝내려면 마우스를 클릭하십시오 .
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E-Mail ?Brief Introduction for Principle of E-Mail
Send & Receive E-mail
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E-Mail ?Brief Introduction for Principle of E-Mail
Send & Receive E-mail
MDAhttp://wlan.egloos.com/10222487
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E-Mail ?Sending & Receiving E-mail
Mail Server
MUA(Mail User Agent)
Write & Send E-mail
MDA(Mail Delivery Agent)
MTA(Mail Transfer Agent)
Mail Server
MUA(Mail User Agent)
Receive & Read E-mail
MDA(Mail Delivery Agent)
http://cusee.net/102
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E-Mail ?E-Mail Protocols – Basic Concept
What kinds of…- IMAP
(Internet Message Access Protocol)- POP3
(Post Office Protocol 3)- SMTP
(Simple Mail Transfer Protocol)- HTTP
(HyperText Transfer Protocol)
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E-Mail ?E-Mail Protocols
Mail Server
MUA(Mail User Agent)
Write & Send E-mail
MDA(Mail Delivery Agent)
MTA(Mail Transfer Agent)
Mail Server
MUA(Mail User Agent)
Receive & Read E-mail
MDA(Mail Delivery Agent)
http://www.emailaddressmanager.com/tips/mail-servers.html
POP3IMAPHTTP
SMTP
POP3IMAPHTTP
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E-Mail ?E-Mail Protocol - SMTP
SMTP(Simple Mail Transfer Protocol)- Based on TCP/IP
- Used by the Mail Transfer Agent(MTA)> To deliver your E-mail to the recipient's mail server
- Can only be used to send emails, not to receive them
- Depending on your network / ISP settings, you may only be able to use the SMTP protocol under certain conditions
- Port 25- Secure SMTP(SSMTP) : port 465
http://www.ietf.org/rfc/rfc0821.txt
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E-Mail ?E-Mail Protocol – POP3
POP3(Post Office Protocol 3)- Provides a simple, standardized way for users
> To access mailboxes> To download messages to their computers
(Mail Server user’s Local computer)
- Users can choose to leave copies of their E-mails on the server
- The advantage :: Once messages are downloaded on users’ local computer, users can read their E-mails when they are on off-line.
- But… users might read all messages which include Spam-mails, and so on when they are using this protocol to down-load messages to local computer.
- Port 110- Secure POP3(SSH-POP) : port 995
http://www.faqs.org/rfcs/rfc1939.html
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E-Mail ?E-Mail Protocol - IMAP
IMAP(Internet Message Access Protocol)- A standard protocol for accessing e-mail from a user’s local
server
- A client/server protocol in which e-mail is received
- As this requires only a small data transfer, this works well even over a slow connection such as a modem
- Port 143- Secure IMAP(IMAP4-SSL) : port 585- IMAP4 over SSL : port 993
http://www.imap.org/
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E-Mail ?POP3 and IMAP
DIFFERENCE BETWEEN POP AND IMAP
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E-Mail ?E-Mail – Header & Body
E-mail; Header- This header keeps important resources- Users can’t see this
- Server Name, Message ID, Send Date/Time, Send Route, Encoding setting
Language Information, etc.
http://cusee.net/102
E-mail; Body- Contents and Messages in e-mail- Attachments in e-mail
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E-Mail !E-Mail !!
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Mailing List ?What is Mailing List ?
Mailing List is…
JUST MAILING LIST!
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Mailing List ?How does it work ?
Mail Server(sparc-s.org)
OH? Mailing List…?!
/etc/aliases
/home/sparcs/mail/aliases.d/wheel-seminar
bbashong, rodumani, sunguard, boolgom, over-mania, podo, alphamin, leeopop, gangok, cling, grandmarnier, etc. + @sparcs.org
http://www.niso.org/khelp/kmlm/user_help/html/intro_lists_aliases.html
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ReferenceWhere you can get more information
http://zenome.com.ne.kr/devzone/server_side/mailserver/princi.htmlhttp://python.kr/viewtopic.php?p=35286&sid=90ba518f728aa9be294ce4edcf7c43a5http://cusee.net/102http://wlan.egloos.com/10222487http://en.wikipedia.org/wiki/Mosaic_(web_browser)http://en.wikipedia.org/wiki/Web_Browserhttp://en.wikipedia.org/wiki/Web_standardshttp://en.wikipedia.org/wiki/Web_serverhttp://ko.wikipedia.org/wiki/HTTP#.EC.98.A4.EB.A5.98_.EC.BD.94.EB.93.9Chttp://terms.co.kr/Telnet.htmhttp://terms.co.kr/FTP.htmhttp://www.w3schools.com/http://www.emailaddressmanager.com/tips/mail-servers.htmlhttp://www.ietf.org/rfc/rfc0821.txthttp://www.faqs.org/rfcs/rfc1939.htmlhttp://www.imap.org/http://www.niso.org/khelp/kmlm/user_help/html/intro_lists_aliases.html
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ENDThank you for listening!
SunGuard