Network Implementation and Support Lesson 13 Web Resouces

1. Network Implementation &
Support
Chapter 13
Web Resources
Eric Vanderburg © 2006

2. IIS (Internet Information Services)
• WWW Sites
• FTP Sites
• Discussion Groups - NNTP (Network
News Transfer Protocol)
• Mail services - SMTP (Simple Mail
Transfer Protocol)
• Web folders - File share over the web
using HTTP. Share appears as a URL.
Eric Vanderburg © 2006

3. IIS 6.0
• automatically detects memory leaks, access violations,
and other errors. The underlying architecture provides
fault tolerance and the ability to restart processes as
necessary. IIS 6.0 continues to queue requests without
interrupting the user experience.
• HTTP Compression
• Not enabled by default and all settings not installed by
default
• NLB (Network Load Balancing) & QoS
• IIS can isolate an individual Web application or multiple
sites into a self-contained process (called an application
pool) that communicates directly with the operating
system kernel.
Eric Vanderburg © 2006

4. Metabase
• Metabase.bin -> metabase.xml &
MBSchema.xml
• Backup location: %systemroot
%system32inetsrvmetaback
• Rollback - A history is kept of changes to the
metabase (%systemroot
%system32inetsrvhistory)
Eric Vanderburg © 2006

5. Components
• BITS (Background Intelligent Transfer Service) resume downloads, efficiently allocate
bandwidth
• Common Files - IIS program files
• FTP Service
• FrontPage 2002 Extensions
• IIS Manager snap-in
• NNTP Service - distribute, retrieve, and post
usenet messages
• SMTP Service
• WWW (Intranet, Extranet, or Internet)
Eric Vanderburg © 2006

6. Folder Structure
• %systemroot%system32inetsrv program files & dlls
• Inetpub - ftproot, wwwroot, nntpfile,
mailroot - contains actual web and ftp files
• Windowshelpiishelp - documentation
Eric Vanderburg © 2006

7. Services
•
•
•
•
•
FTP Publishing - ul/dl
IIS Admin
NNTP
SMTP
WWW Publishing
Eric Vanderburg © 2006

8. IIS
• HTTP.sys - kernel mode instead of user
mode so it runs faster
• IIS 5.0 Isolation mode
• Worker process - independent processes
• Remote Administration tool - manage IIS
and a number of other network services
remotely
– Not available for 64 bit systems
Eric Vanderburg © 2006

9. IIS MMC
• FTP Sites - View each site and where it is
located on the disk
• Application Pools - Apps for web sites
• Web Sites - default has the under
construction page.
• We Service Extensions - Add extensions
like Front Page, ASP (Active Server
Pages), CGI, Internet Printing
• Default SMTP Virtual Server
• Default NNTP Virtual Server (port 119)
Eric Vanderburg © 2006

10. Master Properties
• Change global settings for all sites
• Inherited by default
• If a site is already configured, you will
have the option to override or not.
Eric Vanderburg © 2006

11. Managing Sites
• Separate IP address for each site
• Single IP address with different ports for
each site
• Single IP address with a different domain
name for each site (requires DNS support)
• Virtual directories hide directory structure
& simplify paths
Eric Vanderburg © 2006

12. Web Site Properties
• Web Site - IP, Port, Timeout, Logging
• Performance - Connections, Throttling
• ISAPI (Internet Server Application Programming
Interface) Filters - take action when events occur
in IIS.
• Home Directory - Where the web site points
• Documents - Index search order, web page
footer
• HTTP Headers - content expiration dates to
specify client caching options
• Custom Errors - Set own error pages (ex: 404)
Eric Vanderburg © 2006

13. Web Site Properties
• Directory Security - authentication, IP/DNS ACLs, SSL
certificates
– Anonymous Access (uses IUSR_servername account or a
different account can be specified)
– Basic Authentication - username & password (sent in clear)
– Digest Authentication - Hashed username & password using
MD5. Must run HTTP 1.1 & WebDAV
– Integrated Windows Authentication - Anonymous access is
disabled. Current username and password is sent for the client
automatically
– .NET Passport Authentication - Must register with Microsoft
– Order of processing: Anonymous, Integrated, Digest, Basic
– FTP cannot use Digest, Integrated, or .NET
Eric Vanderburg © 2006

14. FTP Site Properties
• FTP Site - Description, Port, IP, Timeout,
Logging
• Security Accounts - Use either anonymous
access or username and password
• Messages - welcome & exit messages
• Home directory - where the files are stored
• Directory security - IP or computername
ACLs.
Eric Vanderburg © 2006

15. SSL
• Encrypts web content while in transit
• https://, Port 443
• Need a certificate from a trusted source
Eric Vanderburg © 2006

16. Command Line
• Iisweb.vbs - Create, delete, list web sites and start, stop
or pause them.
• Iisweb.vbs /create /start /stop /pause /query /delete
• Iisback.vbs - backup, restore
• Iisvdir.vbs - create, delete, or query virtual directories
• Iisftpdr.vbs - create, delete, or query ftp directories
• Iisext.vbs - configures & manages web services
extensions
• Iisext.vbs /enapp /listapp /addapp /remapp /enext
/disext /listext
• Iiscnfg.vbs - import or export parts of the metabase
Eric Vanderburg © 2006

17. Permissions
• IIS and NTFS permissions
• Most restrictive apply
• Read, Write, Execute
Eric Vanderburg © 2006

18. Acronyms
• ISAPI, Internet Server Application Programming
Interface
• SSL, Secure Sockets Layer
• IPP, Internet Printing Protocol
• FTP, File Transfer Protocol
• IIS, Internet Information Services
• NNTP, Network News Transfer Protocol
• BITS, Background Intelligent Transfer Service
• ASP, Active Server Pages
Eric Vanderburg © 2006