SPARCS 11 Sunguard
WEB? Basic Concept of WEB Page. 02
WEB? Basic Concept of WEB Page. 03
WEB? Basic Concept of WEB Page. 04
WEB? Basic Concept of WEB Page. 02
WEB? Brief History of WEB Who & Why Who Created WEB? - Tim Berners Lee - Robert Cailliau CERN laboratory in Switzerland CERN = European Council for Nuclear Research Why made WEB? To make Information Interchange easily and effectively
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)
Enquire!? WEB? Brief History of WEB Enquire & Mosaic - 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 7 th ), 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)
WEB? What kinds of? Introduction of Web Browser - Internet Explorer, Mozilla Firefox, Opera, Safari, Google Chrome, Navigator, Avant, Flock, Kmelon, MineField, SeaMonkey, Shiretoko, WebMaster, JW Browser, Road Browser, The World, etc.
WEB? Introduction of Web Browser But, Now suppose Web Standards!! Something is different What is that? HTTP Web Browser HTML, XML, XHTML, Graphic File Format, CSS, JAVAscript(DHTML), etc. Web Server And TRANSLATE them!! http://en.wikipedia.org/wiki/web_browser http://en.wikipedia.org/wiki/web_standards
as Software WEB? Brief Introduction for Web Server - 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
WEB? Brief Introduction for HTTP HTTP(Hyper Text Transfer Protocol) - This is PROTOCOL! - Between Client & Server, this is the Request/Response Protocol Request 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
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 URL URL = Protocol + Domain Name(or IP address) + Directory 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
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 URL URL = Protocol + Domain Name(or IP address) + Directory 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
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 URL URL = Protocol + Domain Name(or IP address) + Directory Telnet, FTP, HTTP - Explained before So! SKIP
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 URL URL = Protocol + Domain Name(or IP address) + Directory Server Name + Group(Apparatus) Name + Characteristic Code http://terms.co.kr/dns.htm
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 URL URL = Protocol + Domain Name(or IP address) + Directory
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 Details about HTML http://www.w3schools.com/
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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E-Mail? Brief Introduction for Principle of E-Mail Send & Receive E-mail
E-Mail? Brief Introduction for Principle of E-Mail Send & Receive E-mail http://wlan.egloos.com/10222487
E-Mail? Sending & Receiving E-mail MUA(Mail User Agent) Write & Send E-mail MUA(Mail User Agent) Receive & Read E-mail MDA(Mail Delivery Agent) Mail Server MDA(Mail Delivery Agent) Mail Server MTA(Mail Transfer Agent) http://cusee.net/102
E-Mail? What kinds of E-Mail Protocols Basic Concept - IMAP (Internet Message Access Protocol) - POP3 (Post Office Protocol 3) - SMTP (Simple Mail Transfer Protocol) - HTTP (HyperText Transfer Protocol)
E-Mail? E-Mail Protocols MUA(Mail User Agent) Write & POP3 Send E-mail IMAP HTTP MDA(Mail Delivery Agent) Mail Server MUA(Mail User Agent) Receive & POP3 Read E-mail IMAP HTTP MDA(Mail Delivery Agent) Mail Server SMTP MTA(Mail Transfer Agent) http://www.emailaddressmanager.com/tips/mail-servers.html
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
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 download messages to local computer. - Port 110 - Secure POP3(SSH-POP) : port 995 http://www.faqs.org/rfcs/rfc1939.html
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/
E-Mail? POP3 and IMAP
E-Mail? E-mail; Header E-Mail Header & Body - This header keeps important resources - Users can t see this - Server Name, Message ID, Send Date/Time, Send Route, Encoding setting Language Information, etc. E-mail; Body - Contents and Messages in e-mail - Attachments in e-mail http://cusee.net/102
E-Mail! E-Mail!!
Mailing List? What is Mailing List? Mailing List is JUST MAILING LIST!
Mailing List? How does it work? wheel-seminar@sparcs.org OH? Mailing List?! Mail Server (sparcs.org) /etc/aliases /home/sparcs/mail/aliases.d/wheel-seminar bbashong, rodumani, sunguard, boolgom, overmania, podo, alphamin, leeopop, gangok, cling, grandmarnier, etc. + @sparcs.org http://www.niso.org/khelp/kmlm/user_help/html/intro_lists_aliases.html
Reference Where you can get more information http://zenome.com.ne.kr/devzone/server_side/mailserver/princi.html http://python.kr/viewtopic.php?p=35286&sid=90ba518f728aa9be294ce4edcf7c43a5 http://cusee.net/102 http://wlan.egloos.com/10222487 http://en.wikipedia.org/wiki/mosaic_(web_browser) http://en.wikipedia.org/wiki/web_browser http://en.wikipedia.org/wiki/web_standards http://en.wikipedia.org/wiki/web_server http://ko.wikipedia.org/wiki/http#.ec.98.a4.eb.a5.98_.ec.bd.94.eb.93.9c http://terms.co.kr/telnet.htm http://terms.co.kr/ftp.htm http://www.w3schools.com/ http://www.emailaddressmanager.com/tips/mail-servers.html http://www.ietf.org/rfc/rfc0821.txt http://www.faqs.org/rfcs/rfc1939.html http://www.imap.org/ http://www.niso.org/khelp/kmlm/user_help/html/intro_lists_aliases.html
END Thank you for listening! SunGuard