qr code generator with logo javascript DMZ network topology in Java

Encoder QR Code 2d barcode in Java DMZ network topology

DMZ network topology
Paint QR In Java
Using Barcode printer for Java Control to generate, create QR Code ISO/IEC18004 image in Java applications.
QR Code Scanner In Java
Using Barcode scanner for Java Control to read, scan read, scan image in Java applications.
11:
Generate Barcode In Java
Using Barcode drawer for Java Control to generate, create bar code image in Java applications.
Read Barcode In Java
Using Barcode scanner for Java Control to read, scan read, scan image in Java applications.
Web-centric Security in APEX
Quick Response Code Generation In Visual C#
Using Barcode encoder for Visual Studio .NET Control to generate, create QR image in Visual Studio .NET applications.
Painting QR In .NET Framework
Using Barcode generation for ASP.NET Control to generate, create QR Code JIS X 0510 image in ASP.NET applications.
that updates are available Another solution to consider is the Advanced Security option (ASO) of the database as it enables the encryption of the traffic between the HTTP server and the database, thus thwarting any packet inspection techniques that someone might use to view sensitive data This would also allow internal network traffic from SQL*Plus or SQL Developer connections to be encrypted Another topology to consider would be the external HTTP server acting only as a reverse proxy server that forwards all requests to OHS, shown in Figure 11-7 This is a common configuration when an organization has an existing HTTP server in their DMZ that does not have direct access to the database or is an HTTP server other than OHS/OAS that cannot directly render APEX pages For example, assume that a fictitious company called Acme has a web site at wwwacmecom (port 80) running on a vanilla version of Apache (without mod_plsql) The company wants to expose an APEX application to the Internet on port 80 with the same domain name Apache can be configured to proxy all requests to a particular subdomain or virtual directory on to an additional HTTP server So, any request to apexacmecom is then forwarded on to an internal OHS, which in turn connects to the Oracle database The path is simply reversed when APEX returns a response to the request This configuration has an additional security benefit in that if the operating system of the external HTTP server is compromised, no Oracle client software is installed on that machine that would allow a hacker to connect directly to the database Additionally, the TNS Listener and firewall on the database server should be configured to reject all connection attempts from this machine
Make Denso QR Bar Code In Visual Studio .NET
Using Barcode generation for Visual Studio .NET Control to generate, create QR Code 2d barcode image in .NET applications.
QR Code ISO/IEC18004 Generator In Visual Basic .NET
Using Barcode generator for VS .NET Control to generate, create QR Code image in VS .NET applications.
mod_rewrite and APEX
ECC200 Drawer In Java
Using Barcode encoder for Java Control to generate, create ECC200 image in Java applications.
Draw Barcode In Java
Using Barcode drawer for Java Control to generate, create bar code image in Java applications.
OHS is based on Apache, the most used web server on the Internet Extensions to Apache are done through modules OHS ships with many common modules already installed Some of these modules are Oracle-specific, such as mod_plsql and mod_osso, while others are generally available to the Apache community mod_rewrite is an open-source module that ships with
Draw GTIN - 13 In Java
Using Barcode drawer for Java Control to generate, create GTIN - 13 image in Java applications.
Code-128 Encoder In Java
Using Barcode drawer for Java Control to generate, create ANSI/AIM Code 128 image in Java applications.
FIGURE 11-7
USD - 8 Encoder In Java
Using Barcode encoder for Java Control to generate, create Code 11 image in Java applications.
UPC-A Reader In Visual Basic .NET
Using Barcode scanner for VS .NET Control to read, scan read, scan image in Visual Studio .NET applications.
Proxy server topology
Code39 Printer In None
Using Barcode maker for Online Control to generate, create Code-39 image in Online applications.
Encode Data Matrix 2d Barcode In VS .NET
Using Barcode encoder for VS .NET Control to generate, create ECC200 image in .NET applications.
Part IV: Applied Security for Oracle APEX and Oracle Business Intelligence
Creating Bar Code In Visual Studio .NET
Using Barcode creator for .NET framework Control to generate, create barcode image in .NET applications.
Encode Data Matrix 2d Barcode In None
Using Barcode encoder for Microsoft Excel Control to generate, create Data Matrix image in Office Excel applications.
OHS and is designed to allow administrators to rewrite, change, and redirect URLs as they are requested from the server mod_rewrite uses a combination of regular expressions and environment variables to define rules for a particular URL pattern The most common use of mod_rewrite is to redirect requests to old content that has moved to a new location The following example redirects all requests for cathtml to doghtml:
Bar Code Creation In Visual Basic .NET
Using Barcode maker for .NET framework Control to generate, create barcode image in .NET applications.
Recognize Barcode In Java
Using Barcode scanner for Java Control to read, scan read, scan image in Java applications.
RewriteEngine on Options +FollowSymlinks RewriteRule ^/cathtml /doghtml [R,L]
Developing and testing rules for mod_rewrite can be a challenging process since it s difficult to see what rules were actually applied, and each change requires a restart of the HTTP server Because of these challenges, you should develop and test mod_rewrite on an HTTP server that nobody else is using You will also want to enable logging so that you can evaluate and verify what rules were applied The following example enables logging to a file in the \temp (or /tmp) directory:
RewriteEngine on Options +FollowSymlinks # The following syntax is used for Windows systems # RewriteLog "c:\temp\rewritelog" RewriteLog "/tmp/rewritelog" RewriteLogLevel 3 RewriteRule ^/cathtml /doghtml [R,L]
It s also important to note that logging introduces a substantial performance penalty when it is enabled, so you should use it only when testing new rules and certainly not in production environments
mod_rewrite in Action Now that you have a basic understanding of mod_rewrite, let s do
something more useful with it Earlier in this chapter, we talked about the new Runtime Only option in APEX Another option to protect the development environment is to use a few mod_ rewrite rules In this case, we will allow access to the APEX development environment from localhost (127001) as well as a range of IP addresses:
RewriteEngine on # The following directive is required for mod_rewrite on some platforms, # even though the concept of a symbolic link does not apply to APEX Options +FollowSymlinks # Make sure the request is NOT for application 4155 RewriteCond %{REQUEST_URI}%{QUERY_STRING} !/pls/(apex|builder)/f p=4155:* # Is the request for an application in the range 4000-4999 RewriteCond %{REQUEST_URI}%{QUERY_STRING} /pls/(apex|builder)/f p=(4[0-9]{3}:*) # Make sure the IP of the requestor is not 127001 or 1011120-255 RewriteCond %{REMOTE_ADDR} !^(127\0\0\1|10\11\12\[0-9]{1,3})$ # If the previous 3 conditions are true, return HTTP 403 "Forbidden" RewriteRule /pls/(apex|builder)/ - [F]
11:
Let s step through the rules line by line:
Copyright © OnBarcode.com . All rights reserved.