|
|
Application Server
|
|
|
|
What are the OracleAS
infrastructure components?
The OracleAS infrastructure components are grouped into two
categories:
Identity Management components: it contains schemas for components
such as Portal and Wireless.
OracleAS Metadata Repository components: It is a consistent
security model for all applications. It contains:
a) Oracle Internet Directory
b) OracleAS Delegated Administration Services
c) Oracle Directory Integration and Provisioning
d) OracleAS Certificate authority.
Oracle Application Server Topology
Client tier: PC, Cell phone, or PDA
Middle tier: HOST1- J2EE and WebCache, HOST2- Portal and
wireless, HOST3- Portal and wireless, HOST4- BI Business
Intelligence and forms, HOST5- etc.
Infrastructure: HOSTn- Single Sign On and OID, HOSTm-
Metadata repository.
What is Oracle HTTP Server?
Oracle HTTP Server or OHS is an extension of the standard Apache
distribution. It provides a robust and reliable Web server. You can
access to FORMS, REPORTS, Discoverer, and Portal via the Web. You
can access to Oracle stored procedures with a PL/SQL engine. It
provides failover and supports J2EE (OC4J).
How to start and stop the HTTP Server manually:
The Oracle HTTP Server �OHS- is managed by the OPMN utility.
# cd $ORACLE_HOME/opmn/bin
# ./opmnctl startproc process-type=HTTP_Server -- starts the process
# ./opmnctl stopproc process-type=HTTP_Server -- stops the process
# ./opmnctl status � gives status information
List the name of all Oracle HTTP Server configuration files.
httpd.conf
mod_oc4j.conf
mime.types jsev.conf
oracle_appache.conf
aqxml.conf
moddav.conf
plsql.conf
ojsp.conf
xml.conf
How do you allow access from specific IP addresses or machine
name?
Change your httpd.conf file to add the following lines:
<Location /server-status>
SetHandler server-status
Order deny,allow
Deny from all
Allow from xxx.xxx.xxx.xxx
</Location>
Configuring Directives and Virtual Hosts
What is directive?
Directives are files to use for configuring the server. For example,
the web master of an Oracle HTTP Server contains more than 120
directives at his or her disposal for configuring the server. It
contains container directives. The containers have opening and
closing tag. Any directive that doesn�t appear within a container
applies to the entire serve.
What is the <Directory> directive and how do you maintain it?
It is a group of directives that apply to the named directory and
subdirectories.
Examples of how to maintain the <Directory> directive:
<Directory /> -- refers to the whole file system.
Options none
AllowOverride none
</Directory>
<Directory /home/myfiles/*> --refers to the myfiles subdirectory
under home.
AllowOverride none
</Directory>
<DirectoryMatch �/u0[1-6]/�> --refers to directories that start with
u0 and end with a number from 1 to 6
AllowOverride none
</Directory>
How to use IP-Based or Name-Based Virtual Hosts?
<VirtualHost 200.200.200.2 200.200.200.3>
DocumentRoot /usr/virtual/htdocs/home
ServerName www.iselfschooling.com <http://www.iselfschooling.com/>
ErrorLog /usr/virtual/logs/error_log
</VirtualHost>
<VirtualHost www.iselfschooling.com>
DocumentRoot /usr/virtual/htdocs/home
ServerName www.iselfschooling.com <http://www.iselfschooling.com/>
ErrorLog /usr/virtual/logs/error_log
</VirtualHost>
|
|
