HTTP AND URN.

Hi all,
can any one explain difference between HTTP AND URN which we will be giving while assigning namespaces?
regards,
keerthi

Difference:
What is the difference between a URL and URI and why does it matter? This topic is confusing to some (myself included) and I thought Id share my understanding of the two concepts. Im hoping this post will give you a better understanding about how the two differ and why it matters to some.
Note: The goal of this post is to simplify the distinction between URI and URI. If you feel that in the summarization process something was lost, or its simply just correct, please post a comment and the information will be corrected. I only ask for any comments/criticism to be constructive.
Update: Thanks some constructive, and not-so constructive, feedback from some readers I have updated this post to correct many of my own misunderstandings. Of which, there were many.
URI
A URI identifies a resource either by location, or a name, or both. More often than not, most of us use URIs that defines a location to a resource. The fact that a URI can identify a resources by both name and location has lead to a lot of the confusion in my opionion. A URI has two specializations known as URL and URN.
URN
A URI identifies a resource by name in a given namespace but not define how the resource maybe obtained. This type of URI is called a URN. You may see URNs used in XML Schema documents to define a namespace, usually using a syntax such as:
<xsd:schema xmlns="http://www.w3.org/2001/XMLSchema"
xmlns:xsd="http://www.w3.org/2001/XMLSchema"
targetNamespace="urn:example"Here the targetNamespace use a URN. It defines an identifier to the namespace, but it does not define a location.
check this for more details
http://www.damnhandy.com/2007/11/19/uri-vs-url-whats-the-difference/

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Please remember to mark the replies as answers if they help and unmark them if they provide no help. If you have feedback for TechNet Subscriber Support, contact [email protected]

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Sarathy,
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Hello
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Regards,

Hi,
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+2008-07-17 09:44:08.296MaxDebug 656:d8f6b0 PolicyAgent: am_web_is_notification(), https://sigcit.agp.gva.es:443/fullcitriweb is not notification url http://sigcit.agp.gva.es:80/amagent/UpdateAgentCacheServlet?shortcircuit=false.+
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Regards,
Edited by: idm_oceanic on Jul 17, 2008 1:33 AM

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Hello!
I want to switch between HTTP and HTTPS using JSF.
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regards
Harald.

Thanks,
I made the necessary enhancement for the second phase, password confirmation required when return to SSL zone after leaving it after a succesful login.
I did the following:
1) create a class in the application scope and/or singleton class with the servlet paths that require SSL
2) create a plugin that reads ActionConfigs from the ModuleConfig
3) create a filter that sets a request scope flag that says that password must re-entered.
Code Extracts:
1) MainshopContainer application level parameter singleton class:
private static HashMap sslZoneMap = new HashMap(50); // key = servlet path of request, example /login.do
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try {
ActionConfig[] actionConfigs = config.findActionConfigs();
for (int i = 0; i < actionConfigs.length; i++)
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mainshopContainer.addToSSLZone(servletPath);
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catch (Exception ex)
ex.printStackTrace();
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3)
public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain)
throws IOException, ServletException {
HttpServletRequest req = (HttpServletRequest) request;
HttpServletResponse res = (HttpServletResponse) response;
String servletPath = req.getServletPath();
boolean secure= this.mainshopContainer.isInSSLZone(servletPath);
The wole picture:
The filter adds a RequestDTO object that includes all request parameters, one of them is the secure flag.
I have a session scope class UserContainer that includes all the session parameters, one of them is the lastRequestDTO.(last made request)
At the end of all my jsp's I set the lastRequestDTO variable.
In that method I set the passwordConfirmationRequired flag if needed:
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this.lastRequestDTO = _lastRequestDTO;
I read the passwordConfirmationRequired in all my jsp's in the SSL zone that allow editing or deleting and if that flag is true, a valid password must be re-entered in order to make the updates.
When the password is OK I reset the passwordConfirmationRequired to false.
I need some help for the first phase, that is SSL setup for all actions related to jsp's with url path /account/*
I tought I could define it in the web.xml:
<security-constraint>
<web-resource-collection>
<web-resource-name>All Account Related Pages</web-resource-name>
<url-pattern>/account/*</url-pattern>
</web-resource-collection>
<user-data-constraint>
<transport-guarantee>CONFIDENTIAL</transport-guarantee>
</user-data-constraint>
</security-constraint>
but that doesn't work and finnaly understood why:
Example: /WEB-INF/jsp/account/login.jsp corresponds to /login.do
The url pattern /account/* at the container level is never encountered.
Is it allowed to declare the following action path: /account/login instead of /login?
If yes I could add following prefix /account to all my action paths and forward paths and this could resolve my problem.
What's your opinion?
If no, would your library resolve this?
Will all the Struts/JSP/JSTL url generating tags pick-up the required protocol (http/https) according to your configuration file?
Regards
Fred

WCCP Configuration HTTP and HTTPS

Looking for anyone that might have a clue in on this, im attempting to configure a pair of routers to use WCCP to redirect HTTP and HTTPS traffic to two content keeper devices. The network im building is going to be used for a guest internet connection where defining proxies on end devices would be unusable.
I'll drop the configs in below but for now what i have are 2 cisco 3925 routers configured for HSRP. 2 content keeps running squid for the cache engine. with my current configurations, I have wccp web-cache and wccp service 70 configured (all 4 devices are available/usable in both services). this is a layer 2 setup. HTTP traffic is picked up and redirected to the content keepers without issue. https traffic does not appear to be detected by the routers. I have chosen not to use ACLS for WCCP and use the redirect in because we want to capture http(s) traffic from all hosts.
for HTTP, I see hits counters rise on the router under show ip wccp, i see hit counters for the content keepers increase, i see http traffic on the firewall from the content keepers and I get the web page on the device
For HTTPS I do not see hit counters under wccp increase, I do not see any traffic on the content keepers bridge, and i see traffic on the firewall from the hosts orginal ip address.
interface0/2 internal LAN
interface 0/0 content keepers (no WCCP commands)
interface 0/1 gateway firewalls. (no WCCP commands
ip wccp check services all
ip wccp web-cache
ip wccp 70
interface GigabitEthernet0/2
description To Lan
ip address x.x.x.x
ip wccp web-cache redirect in
ip wccp 70 redirect in
standby 1 ip x.x.x.x
standby 1 priority 150
standby 1 preempt
duplex auto
speed auto
Global WCCP information:
    Router information:
        Router Identifier:                   x.x.x.2
    Service Identifier: web-cache
        Protocol Version:                    2.00
        Number of Service Group Clients:     2
        Number of Service Group Routers:     2
        Total Packets Redirected:            17999
          Process:                           0
          CEF:                               17999
        Service mode:                        Open
        Service Access-list:                 -none-
        Total Packets Dropped Closed:        0
        Redirect access-list:                110
        Total Packets Denied Redirect:       0
        Total Packets Unassigned:            0
        Group access-list:                   -none-
        Total Messages Denied to Group:      0
        Total Authentication failures:       0
        Total GRE Bypassed Packets Received: 0
          Process:                           0
          CEF:                               0
    Service Identifier: 70
        Protocol Version:                    2.00
        Number of Service Group Clients:     2
        Number of Service Group Routers:     2
        Total Packets Redirected:            0
          Process:                           0
          CEF:                               0
        Service mode:                        Open
        Service Access-list:                 -none-
        Total Packets Dropped Closed:        0
        Redirect access-list:                -none-
        Total Packets Denied Redirect:       0
        Total Packets Unassigned:            0
        Group access-list:                   -none-
        Total Messages Denied to Group:      0
        Total Authentication failures:       0
        Total GRE Bypassed Packets Received: 0
          Process:                           0
          CEF:                               0
Show details and show service attached.

Hello Josh,
1. Yes, port-specific ACL is not supported. But it is not a big problem. Usually on WCCP server you can configure very specific bypass (Cisco WSA supports that - do not know about Sophos). For bypassed traffic WCCP server will reinject that packet in GRE and send back to ASA which will decapsulate it and send as normal packets.
It's a good design, because you can have very granural bypass policy on WCCP server.
2. Yes, configuration is correct, although it's better to be more specific (not send all traffic to WCCP if there is no need for that).
3. Yes, you can use deny in redirect-list to exclude traffic.
4. WCCP keepalives are being send by WCCP server by default every 10 seconds. If ASA does not see that replies for some time it marks server as dead and uses other ones.
Michal

HTTP AND URN.

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