Two FWSM module act as Single

Hi ALL,
We have two switches and TWo FWSM module is inserted into the Two switches .Can I add the FWSM as a separate device instead of module because i can't telnet the fwsm from Switch.Customer is not ready to configure the telnet option.FWSM module is working as a active and active mode..so virtual single ip is configured....How can i add the FWSM module in this network.

You can use as the separate device. For the further description the following URL for the configuration for the FWSM will help you
http://www.cisco.com/en/US/docs/security/fwsm/fwsm23/configuration/guide/context.html

Similar Messages

Updating two FWSM in active/passive state

Hi,
I have two FWSM modules on two 6509 switches. Last night I updated the active FWSM, but I don't know how to update the passive one! One solution that came up to my mind was to change the active one, to act in passive state, and then change the passive one, which doesn't have the update, and then update it. But I guess there should be some other ways to do so without using failover. Any help?
Thanks

Perfect Jouni.
1) on the active unit's system context, execute "write mem all" (if multiple context otherwise just "wr mem")
2) copy the new image to the standby unit
3) reload the standby unit which will come back as standby and running
the new code
4) on the standby execute "failover active", it is now the active unit
5) on the unit that is now standby, copy the new image to it
6) reload the standby unit
http://www.cisco.com/en/US/docs/security/fwsm/fwsm40/configuration/guide/swcnfg_f.html#wp1064232
-Kureli
Pls. take a few minutes to fill out this poll and help me tailor the content for the breakout session on ASA-CX, Cisco Live Orlando 2013.
https://supportforums.cisco.com/polls/1232

Share persistence.xml file between two EJB modules in EAR

Hello, everybody!
First of all, I would like to say that I already posted this question in another forum:
[http://community.jboss.org/thread/154128?tstart=0]
But as I haven't got any answer from there and this issue is very crucial to me I'm posting it here too in the hope that I get an answer. So, here it goes:
I have two EJB modules in an EAR module. I would like to know how to share a single persistence.xml file with these two EJB modules. If I replicate the persistence.xml file in the two EJB modules, the EAR project deploys ok, but of course that's not what we want. If I remove the persistence.xml file from any of the EJB projects, the EAR doesn't deploy properly. I'm stuck with this. I've already tried many kind of configurations but none worked. I really would like to have some help with this issue to proceed working. This is my EAR structure:
solicitacoes-ejb.jar       (EJB session beans)
solicitacoes-dao.jar       (EJB interfaces)
solicitacoes-dao-jpa.jar   (EJB session beans)
solicitacoes-ejbClient.jar (entities and EJB interfaces)
solicitacoes-web.war
META-INF/This is my application.xml file:
<?xml version="1.0" encoding="UTF-8"?>
<application
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://java.sun.com/xml/ns/javaee"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/application_5.xsd"
version="5">
    <display-name>solicitacoes-ear</display-name>
    <module>
        <ejb>solicitacoes-ejb.jar</ejb>
    </module>
    <module>
        <ejb>solicitacoes-dao-jpa.jar</ejb>
    </module>
    <module>
        <web>
            <web-uri>solicitacoes-web.war</web-uri>
            <context-root>solicitacoes</context-root>
        </web>
    </module>
</application>If I remove the persistence.xml file from one of the EJB modules, let's say solicitacoes-dao-jpa.jar, I get this error when deploying the EAR file:
... 39 more
Caused by: java.lang.IllegalArgumentException: Can't find a persistence unit named 'null' in AbstractVFSDeploymentContext@28359170{vfs:///C:/jboss-6.0.0.20100429-M3/server/default/deploy/solicitacoes-ear.ear/solicitacoes-dao-jpa.jar/}
at org.jboss.jpa.resolvers.BasePersistenceUnitDependencyResolver.resolvePersistenceUnitSupplier(BasePersistenceUnitDependencyResolver.java:107) [:1.0.2-alpha-1]
at org.jboss.ejb3.Ejb3Deployment.resolvePersistenceUnitSupplier(Ejb3Deployment.java:778) [:1.3.1]
at org.jboss.ejb3.EJBContainer.resolvePersistenceUnitSupplier(EJBContainer.java:1517) [:1.3.1]
at org.jboss.injection.PersistenceUnitHandler.addPUDependency(PersistenceUnitHandler.java:130) [:1.3.1]
... 43 moreI need help with this issue. As you could see, the EJB container doesn't like to see an EJB module without a persistence.xml file. This is clearly a dumb decision though. I agree with it if there was only one EJB module in an EAR. But the container should have been smart enough to require only one persistence.xml file in an EAR module with more than one EJB module, and share that persistece context with the whole EAR.
Acting the way it is acting now, the container forces us to duplicate the persistece.xml file and kill our application modularity. This is clearly wrong. I've already tried to put the entity classes and persistence.xml file in the lib directory of the EAR, but it didn't work either. The container needs to have the persistence.xml file in both EJB modules.
I don't know if this is a JBoss implementation decision or if it comes from the Java EE 6 specification. Whatever it is, it goes against all good modular and good design decision. Please if some of you know how to solve this, took a little time to tell me how. I would be very grateful.
Thank you in advance.
Marcos

Dear Mr. gimbal2,
In another occasion I would not reply to such a 'helpful' answer like the one you gave me (yes, it is undoubtedly an answer because that's how you classified it in the beginning of your reply), but as today I have plenty of time here in my job, for this week we're not working full time as usual, I decided to reply to it.
You have to completely overhaul your attitude.I really didn't know I was taking so personal on this issue to have to 'completely overhaul my attitude'. Thank you for pointing that out.
In stead of calling the technology dumb, admit to yourself that perhaps you don't understand it properly and that your ideas of what is correct design perhaps is a little lacking. I didn't call the technology dumb because I stated very clearly that I don't know for sure if it is working this way. I said in the last paragraph:
+"I don't know if this is a JBoss implementation decision or if it comes from the Java EE 6 specification. Whatever it is, it goes against all good modular and good design decision."+
So, I let implicit the fact that the technology or the implementation of the technology is dumb only if it doesn't allow this possibility. Regarding the fact that your said that I should
admit to myself that perhaps I don't understand it properly, where did I stated in my question that I understand it completely? It's clear in the last paragraph that I don't. If I'm asking that's because I have doubts. Maybe my ideas of what is correct is wrong, and that's why I'm here in this forum. But everyone with a good sense knows that what I propose in this discussion is by no means a wrong design decision. Where is it a sin to have more than one EJB module in a EAR and a persisntece.xml file shared for the whole EAR? Does everyone that has more than one EJB module in an EAR module need to connect to more than one database? Is it wrong to want to have your DAO implementation in a separate EJB module in order to make deployment easy and also changes, if you later want to replace that implementation with another one without affecting
the other modules? I don't think that a design decision that seeks this is lacking. I don't think that Java EE today is a dumb technoloby, but everyone knows that before it gets to the present level, it was a technology known to have made big dumb decisions that the community latter corrected, with ideas like O/R mapping (Hibernate), dependency injection (Spring), Struts and lots of other examples that we all know. No one can deny this and lots of wrong things will continue to be fixed in later releases.
Maybe when you rise yourself back to that level, you open yourself up again to thinking in correct solutions in stead of trying to hammer through your own poorly chosen one.To be sincere, I see you took very personal about this issue. You really shows to be someone that has no respect to other people and you judge them too. I must say that I got surprised by the way you answered my post. I didn't expect to get such sarcastic answer to what I asked. I personally don't act this way. If I can't help a person, I also don't try to ridicularize him.
Marcos

Problem calling two perl modules from java in seperate threads(JVM CRASHES)

Dear Friends,
I have one severe problem regarding calling perl modules from java
I had to call two perl modules simultaneously (i.e.) from two threads,,, but jvm crashes when one of the perl calls is exiting earlier
I am unable to spot out why ....
For calling perl from java ...., We are first calling C code from java using JNI and then Perl code from C
All works fine if we call only one perl call at a time.... If we call them in a synchronized manner the JVM is not crashing .... But we don't want blocking..
The following is the code snippet
<JAVA FILE>
class Sample
     static {
          System.loadLibrary("xyz"); // Here xyz is the library file generated by compiling c code
     public native void call_PrintList();
     public native void call_PrintListNew();
     Sample()
          new Thread1(this).start();
     public static void main(String args[])
          System.out.println("In the main Method");
          new Sample().call_PrintList();
     class Thread1 extends Thread
          Sample sample;
          Thread1(Sample sam)
               sample=sam;
          public void run()
               sample.call_PrintListNew();
}<C FILE>
#include <EXTERN.h>
#include <perl.h>
static PerlInterpreter *my_perl;
static char * words[] = {"alpha", "beta", "gamma", "delta", NULL } ;
static void
call_PrintList(){
     printf("\nIn the Call method of string.c\n");
        char *wor[] = {"hello", "sudha", NULL } ;
           char *my_argv[] = { "", "string.pl" };
           PERL_SYS_INIT3(&argc,&argv,&env);
           my_perl = perl_alloc();
               PL_perl_destruct_level = 1; //// We have mentioned this also and tried removing destruct call
           perl_construct( my_perl );
           perl_parse(my_perl, NULL, 2, my_argv, (char**)NULL);
          PL_exit_flags |= PERL_EXIT_DESTRUCT_END;
           perl_run(my_perl);
     dSP ;
        perl_call_argv("PrintList", G_DISCARD, wor) ;
PL_perl_destruct_level = 1;
//     perl_destruct(my_perl);
//          perl_free(my_perl);
//           PERL_SYS_TERM();
static void
call_PrintListNew(){
printf("In the new call method\n");
char *wor[] = {"Hiiiiiiiiiiiiiii", "Satyam123333", NULL } ;
        char *my_argv[] = { "", "string.pl" };
        PERL_SYS_INIT3(&argc,&argv,&env);
        my_perl = perl_alloc();
PL_perl_destruct_level = 1;
        perl_construct( my_perl );
        perl_parse(my_perl, NULL, 2, my_argv, (char**)NULL);
        PL_exit_flags |= PERL_EXIT_DESTRUCT_END;
        perl_run(my_perl);
        dSP ;
        perl_call_argv("PrintListNew", G_DISCARD, wor) ;
PL_perl_destruct_level = 1;
//      perl_destruct(my_perl);
//      perl_free(my_perl);
   //     PERL_SYS_TERM();
void callNew()
call_PrintListNew();
void call ( )
call_PrintList();
//char *wor[] = {"hello","sudha",NULL};
/*   char *my_argv[] = { "", "string.pl" };
      PERL_SYS_INIT3(&argc,&argv,&env);
      my_perl = perl_alloc();
      perl_construct( my_perl );
      perl_parse(my_perl, NULL, 2, my_argv, (char**)NULL);
     PL_exit_flags |= PERL_EXIT_DESTRUCT_END;
      perl_run(my_perl);*/
   //   call_PrintList();                      /*** Compute 3 ** 4 ***/
/*      perl_destruct(my_perl);
      perl_free(my_perl);
      PERL_SYS_TERM();*/
    }And Finally the perl code
sub PrintList
            my(@list) = @_ ;
            foreach (@list) { print "$_\n" }
sub PrintListNew
            my(@list) = @_ ;
            foreach (@list) { print "$_\n" }
        }Please help me in this regard

Dear Friends,
I have one severe problem regarding calling perl modules from java
I had to call two perl modules simultaneously (i.e.) from two threads,,, but jvm crashes when one of the perl calls is exiting earlier
I am unable to spot out why ....
For calling perl from java ...., We are first calling C code from java using JNI and then Perl code from C
All works fine if we call only one perl call at a time.... If we call them in a synchronized manner the JVM is not crashing .... But we don't want blocking..
The following is the code snippet
<JAVA FILE>
class Sample
     static {
          System.loadLibrary("xyz"); // Here xyz is the library file generated by compiling c code
     public native void call_PrintList();
     public native void call_PrintListNew();
     Sample()
          new Thread1(this).start();
     public static void main(String args[])
          System.out.println("In the main Method");
          new Sample().call_PrintList();
     class Thread1 extends Thread
          Sample sample;
          Thread1(Sample sam)
               sample=sam;
          public void run()
               sample.call_PrintListNew();
}<C FILE>
#include <EXTERN.h>
#include <perl.h>
static PerlInterpreter *my_perl;
static char * words[] = {"alpha", "beta", "gamma", "delta", NULL } ;
static void
call_PrintList(){
     printf("\nIn the Call method of string.c\n");
        char *wor[] = {"hello", "sudha", NULL } ;
           char *my_argv[] = { "", "string.pl" };
           PERL_SYS_INIT3(&argc,&argv,&env);
           my_perl = perl_alloc();
               PL_perl_destruct_level = 1; //// We have mentioned this also and tried removing destruct call
           perl_construct( my_perl );
           perl_parse(my_perl, NULL, 2, my_argv, (char**)NULL);
          PL_exit_flags |= PERL_EXIT_DESTRUCT_END;
           perl_run(my_perl);
     dSP ;
        perl_call_argv("PrintList", G_DISCARD, wor) ;
PL_perl_destruct_level = 1;
//     perl_destruct(my_perl);
//          perl_free(my_perl);
//           PERL_SYS_TERM();
static void
call_PrintListNew(){
printf("In the new call method\n");
char *wor[] = {"Hiiiiiiiiiiiiiii", "Satyam123333", NULL } ;
        char *my_argv[] = { "", "string.pl" };
        PERL_SYS_INIT3(&argc,&argv,&env);
        my_perl = perl_alloc();
PL_perl_destruct_level = 1;
        perl_construct( my_perl );
        perl_parse(my_perl, NULL, 2, my_argv, (char**)NULL);
        PL_exit_flags |= PERL_EXIT_DESTRUCT_END;
        perl_run(my_perl);
        dSP ;
        perl_call_argv("PrintListNew", G_DISCARD, wor) ;
PL_perl_destruct_level = 1;
//      perl_destruct(my_perl);
//      perl_free(my_perl);
   //     PERL_SYS_TERM();
void callNew()
call_PrintListNew();
void call ( )
call_PrintList();
//char *wor[] = {"hello","sudha",NULL};
/*   char *my_argv[] = { "", "string.pl" };
      PERL_SYS_INIT3(&argc,&argv,&env);
      my_perl = perl_alloc();
      perl_construct( my_perl );
      perl_parse(my_perl, NULL, 2, my_argv, (char**)NULL);
     PL_exit_flags |= PERL_EXIT_DESTRUCT_END;
      perl_run(my_perl);*/
   //   call_PrintList();                      /*** Compute 3 ** 4 ***/
/*      perl_destruct(my_perl);
      perl_free(my_perl);
      PERL_SYS_TERM();*/
    }And Finally the perl code
sub PrintList
            my(@list) = @_ ;
            foreach (@list) { print "$_\n" }
sub PrintListNew
            my(@list) = @_ ;
            foreach (@list) { print "$_\n" }
        }Please help me in this regard

Two AlV Grids in a single screen

I want to bring two ALV GRIDS in a single report output screen.How can i achieve this through Classical coding( not OBJECT ORIENTED ). If possible please provide with codes.
thanks,
Venkat

Hello Venkat
I agree that using fm's this is an almost impossible task whereas using OO-based ALV lists it is just a piece of cake.
For a sample have a look at report ZUS_SDN_TWO_ALV_GRIDS in thread alv
or report ZUS_SDN_THREE_ALV_GRIDS in thread Alv
Regards
Uwe

Two ALV Grids in a single screen are overlapping eachother

Hi,
I have created two ALV grids in a single screen. I have used seperate containers for them.
But on executing them , both the ALV grids are overlapping eachother.
Please give me a solution.

Hi,
IF w_custom_container IS INITIAL.
Creating Object for the Custom Container.
    CREATE OBJECT w_custom_container
      EXPORTING
        container_name              = w_container
      EXCEPTIONS
        cntl_error                  = 1
        cntl_system_error           = 2
        create_error                = 3
        lifetime_error              = 4
        lifetime_dynpro_dynpro_link = 5
        OTHERS                      = 6.
    CASE sy-subrc.
      WHEN 1.
        MESSAGE e054. "CNTL ERROR
      WHEN 2.
        MESSAGE e055. "CNTL SYSTEM ERROR
      WHEN 3.
        MESSAGE e056. "CREATE ERROR
      WHEN 4.
        MESSAGE e057. "LIFETIME ERROR
      WHEN 5.
        MESSAGE e058. "LIFETIME DYNPRO DYNPRO LINK
    ENDCASE.
Creating object for the Splitter Container.
    CREATE OBJECT w_split_container
      EXPORTING
        parent            = w_custom_container
        orientation       = 0
        sash_position     = 30
        with_border       = 2
      EXCEPTIONS
        cntl_error        = 1
        cntl_system_error = 2
        OTHERS            = 3.
    CASE sy-subrc.
      WHEN 1.
        MESSAGE e054. "CNTL_ERROR
      WHEN 2.
        MESSAGE e055. "CNTL_SYSTEM_ERROR
    ENDCASE.
Creating Grid Control.
    CREATE OBJECT w_grid1
      EXPORTING
        i_parent = w_split_container->top_left_container.
    CREATE OBJECT w_grid2
      EXPORTING
        i_parent = w_split_container->bottom_right_container.
Building field catalog for ALV.
Fieldcat for the Detail Record.
    PERFORM build_fieldcat        USING: c_1 c_code c_output c_check
                                          c_comcode c_olength,
                                          c_2 c_fileno c_output c_check
                                          c_filenum c_olength,
                                          c_3 c_dedcod c_output c_check
                                          c_dedcode c_olength,
                                          c_4 c_dedfac c_output c_check
                                          c_dedf c_olength.
FieldCatlog for the Error Records.
    PERFORM build_fieldcat_error USING: c_1 c_pernr c_error c_check
                                          c_person c_olength,
                                          c_2 c_desc c_error c_check
                                          c_descp c_olength.
ALV Display.
    CALL METHOD w_grid1->set_table_for_first_display
EXPORTING
   i_buffer_active               =
   i_bypassing_buffer            =
   i_consistency_check           =
   i_structure_name              =
   is_variant                    =
   i_save                        =
   i_default                     = 'X'
   is_layout                     =
   is_print                      =
   it_special_groups             =
   it_toolbar_excluding          =
   it_hyperlink                  =
   it_alv_graphics               =
   it_except_qinfo               =
   ir_salv_adapter               =
      CHANGING
        it_outtab                     = t_error
        it_fieldcatalog               = t_fieldcat_error
   it_sort                       =
   it_filter                     =
      EXCEPTIONS
        invalid_parameter_combination = 1
        program_error                 = 2
        too_many_lines                = 3
        OTHERS                        = 4
    CASE sy-subrc.
      WHEN 1.
        MESSAGE e076. "invalid parameter combination
      WHEN 2.
        MESSAGE e001. "program error
      WHEN 3.
        MESSAGE e078. "too many lines
    ENDCASE.
    CALL METHOD w_grid2->set_table_for_first_display
EXPORTING
   i_buffer_active               =
   i_bypassing_buffer            =
   i_consistency_check           =
   i_structure_name              =
   is_variant                    =
   i_save                        =
   i_default                     = 'X'
   is_layout                     =
   is_print                      =
   it_special_groups             =
   it_toolbar_excluding          =
   it_hyperlink                  =
   it_alv_graphics               =
   it_except_qinfo               =
   ir_salv_adapter               =
      CHANGING
        it_outtab                     = t_output
        it_fieldcatalog               = t_fieldcat
   it_sort                       =
   it_filter                     =
      EXCEPTIONS
        invalid_parameter_combination = 1
        program_error                 = 2
        too_many_lines                = 3
        OTHERS                        = 4
    CASE sy-subrc.
      WHEN 1.
        MESSAGE e076. "invalid parameter combination
      WHEN 2.
        MESSAGE e001. "program error
      WHEN 3.
        MESSAGE e078. "too many lines
    ENDCASE.
ELSE.
    CALL METHOD w_grid1->refresh_table_display
      EXPORTING
        i_soft_refresh = 'X'.
    CALL METHOD w_grid2->refresh_table_display
      EXPORTING
        i_soft_refresh = 'X'.
ENDIF.
Hope it Helps,
Jayant Sahu.

Two radio buttons in a single row of a table

Hi All,
Can we have two radio buttons in a single row of ADF TABLE.
My requirement is that i have a list of submitted records. The user can approve or reject the records.
All the records are displayed in the table. there will be two columns in the table(Approve , Reject) The user can approve the first record and reject the second record and so on....
using table selectOne we can select only one row. Using radio buttons how to select the multiple records, at the same time grouping is done between the two columns(radio buttons) in the table

Hi,
I don't think that you can do this with radio buttons. The usecase is more for chackboxes. It would have been a usecase for radio buttons if there was a single column with 3 possible options
- pending
- approved
- rejected
Frank

Assigning a login module to a single WebDynpro to authenticate against LDAP

Hi there,
we are running the J2EE Engine 7.0 within XI on SAP NetWeaver 2004s / Linux x86_64.
Basically, i want to Authenticate a Java WebDynpro against an LDAP (Active Directory). With the XI Usage installed, I can not customize the UME to authenticate against an LDAP (not supported and not possible).
Thus, I want to use a custom login module or, if suitable, a standard login module to authenticate against LDAP. I know that all WebDynpro Apps use the default authentication scheme that in turn references the authentication template "ticket".
1) Can I use a predefined Login Module to authenticate against Active Directory LDAP or do I have to write a custom login module?
2) Is it possible to assign a login module to a single WebDynpro and how can I do this?
Thanks a lot in advance,
Oliver Kalkofen

> Thus, I want to use a custom login module or, if
> suitable, a standard login module to authenticate
> against LDAP.
We have developed a custom login module which does this. It looks to the user like the BasicPasswordLoginModule provided with SAP, but the userid and password entered has to be a valid accountpassword from the Active Director domain. We use the Kerberos protocol to perform this useridpassword validation, not LDAP. The userid can be just a name, in which case the default domain (realm in Kerberos terminology) or it can be specified as user@REALM in which case a non-default realm can be used to authenticate. Once the authentication is complete, we look in USRACL table to map this Kerberos principal name onto a SAP userid so we can then create an SSO2 ticket.
If you interested to evaluate, or get a quote for purchasing this, please contact me offline. Of course, you can develop your own if you are happy to do so. I just thought you might be interested to know of an alternative.
Thanks,
Tim

How should i use the two results sets in one single report data region?

Hi frnz,
I have to create a report using the below condition...
Here my given data set query gives you the two result sets ,so how should i use that two result sets information in single report....when i accessing that data set query it will take the values off the first result set not for the second result set.
without using sub report and look up functionality..... if possible
is there any way to achieve this.....Please let me know..
Thanks!

You cant get both resultsets in SSRS. SSRS dataset will only take the first resultset
you need to either create them as separate queries or merge them into a single resultset and return with ad additional hardcoded field which indicates resultset (ie resultset1,resultset2 etc)
Then inside SSRS report you can filter on the field to fetch individual resultsets at required places. While merging you need to make sure metadata of two resultsets are made consistent ie number of columns and correcponding column data types should be same.
In absence of required number of columns just put some placeholders using NULL
Please Mark This As Answer if it helps to solve the issue Visakh ---------------------------- http://visakhm.blogspot.com/ https://www.facebook.com/VmBlogs

BDC recording(updating two line items in a single call)

Hi,
I have a problem with the transaction PK31,while recording we enterd material number,plant,supply area in the first screen,after that it display line items for that control cycle,I want to update some fields in that line items,when i updated quantity and status fields in the first line item after that i cliked the change "qty/status button" and it saves that field values and it comes out from the transaction.
can you please suggest what is the solution for updating two line items in a single call(PK31 transaction).

Hi,
In one screen . Put 2 containers with different names.
cont1,cont2
on each of the container call grid,grid1 like below .
1. this is for item line display
IF g_r_grid IS INITIAL.
      CREATE OBJECT g_r_cont
                  EXPORTING container_name = 'CONT1'.
    g_r_variant = sy-repid.
*--Build field catalog
    PERFORM build_field_catalog.
*--Layout selection
    g_r_layo-cwidth_opt = g_c_set.
    g_r_layo-no_rowmark = g_c_set.
    g_r_layo-sel_mode    = space.
    CALL METHOD g_r_grid->set_table_for_first_display
      EXPORTING
        i_buffer_active = g_c_set
        is_variant      = g_r_variant
        is_layout       = g_r_layo
        i_save          = g_c_set
        i_default       = g_c_set
      CHANGING
        it_outtab       = g_t_alv
        it_fieldcatalog = g_t_fieldcat
        it_sort         = g_t_sort.
endif
1. this is for error data display
IF g_r_grid1 IS INITIAL.
      CREATE OBJECT g_r_cont
                  EXPORTING container_name = 'CONT2'.
    g_r_variant = sy-repid.
*--Build field catalog
    PERFORM build_field_catalog.
*--Layout selection
    g_r_layo-cwidth_opt = g_c_set.
    g_r_layo-no_rowmark = g_c_set.
    g_r_layo-sel_mode    = space.
    CALL METHOD g_r_grid->set_table_for_first_display
      EXPORTING
        i_buffer_active = g_c_set
        is_variant      = g_r_variant
        is_layout       = g_r_layo
        i_save          = g_c_set
        i_default       = g_c_set
      CHANGING
        it_outtab       = g_t_error
        it_fieldcatalog = g_t_fieldcat
        it_sort         = g_t_sort.
endif

Portal authentication using two login module stacks?

G'day,
I am noticing something odd when I authenticate to the portal: there are two login module stacks used.
Background: I have created a custom logon page, which is basically a form with username/password input as per [this guide|http://help.sap.com/saphelp_nw04/helpdata/en/62/601e1eebf54ca6a97e2873c8c63517/content.htm|Changing the logon screen]. I then modified the authschemes.xml file by defining a new authscheme "mylogon" that uses my own login module stack ("mystack") and uses the new logon page ("mylogonform"). This new authscheme is then made the default reference:
<authscheme name="mylogon">
<authentication-template>mystack</authentication-template>
<priority>21</priority>
<frontendtype>2</frontendtype>
<frontendtarget>com.foo.bar.mylogonpage</frontendtarget>
</authscheme>
<authscheme-refs>
<authscheme-ref name="default"><authscheme>mylogon</authscheme></authscheme-ref>
<authscheme-ref name="UserAdminScheme"><authscheme>mylogon</authscheme></authscheme-ref>
</authscheme-refs>
When I want to access the portal, up pops the "mylogonform" page, and on clicking the "submit" button the portal page for the user is shown.
Now here is the interesting thing: when the "ticket" login module stack is unchanged (ie. it uses the BasicpasswordLoginModule), then the log shows that authentication to the portal uses just my login module.
This can be seen as follows, where I navigate to the portal, logon as one user, then logoff and logon as another user:
Message : LOGIN.OK
User: tu-1
Authentication Stack: mystack
Message : LOGOUT.OK
User: tu-1
Authentication Stack: mystack
Message : LOGIN.OK
User: Administrator
Authentication Stack: mystack
The "mylogonform" page is shown when logon is required in both cases.
However, if I modify the "ticket" login module stack by replacing the BasicPasswordLogonModule with a custom logon module that does automatic authentication, then the following is observed when the "mylogonform" page is displayed:
Message : LOGIN.FAILED
User: N/A
Authentication Stack: ticket
Message : LOGIN.OK
User: tu-1
Authentication Stack: ticket
For some reason, the modified "ticket" login module stack is now being executed, which was not the case when this login module stack was unmodified.
This stack automatically authenticates the current user (the initial failure is because the new login module asks the browser to send authentication data), and this "failure" causes the logon form to be displayed.
I can logon to the portal as the same user, and the logs show that "mystack" login module stack is used:
Message : LOGIN.OK
User: tu-1
Authentication Stack: mystack
Logoff shows that "mystack" is used for the actual logoff, but "ticket" is called again automatically and succeeds:
Message : LOGOUT.OK
User: tu-1
Authentication Stack: mystack
Message : LOGIN.FAILED
User: N/A
Authentication Stack: ticket
Message : LOGIN.OK
User: tu-1
Authentication Stack: ticket
(Again, the initial logon failure is the new login module requesting that the browser send authentication data in the next request).
This brings up the "mylogonform" page, even though it appears that a user has already been authenticated. If I try to logon as another user, the following is shown:
Message : LOGIN.FAILED
User: Administrator
Authentication Stack: mystack
Login Module                                                            Flag        Initialize Login      Commit     Abort      Details
com.sap.security.core.server.jaas.EvaluateTicketLoginModule             SUFFICIENT ok          exception false      true       authscheme not sufficient: basicauthentication<mylogonform
Central Checks                                                                                exception             Call logout before login.
I guess one cannot authenticate as a new user until the current user has been logged out.
So ... why does the "ticket" login module get called in the second case, but not in the first case (or only shows logging in the second case) ?
What is the logic behind portal authentication and showing a logon page?
If I want to use custom authentication and a custom logon page, why is the "ticket" stack called at all?

Jayesh,
there is no such thing like "login module stacks". The <b>do</b> exist on the other hand:
- login module
- logon stacks
Login module and logon stacks are part of the JAAS concept for defining a complex pluggable authentication scheme, original by SUN (see: java.sun.com/products/jaas)
A logon process is defined by a logon stack which itself consists of several login modules. Each login module performs an authentication step. Example:
login module 1: check if valid sap logon ticket provided
if module 1 fails: then login module 2: request user id/password
if module 2 succeeds: then login module 3: create new sap logon ticket for user
You can define multiple logon stacks and configure individual applications to use the one stack or the other.
The logon stack configuration is done using visual administrator. Here select the security provider service for configuring logon stacks.
btw: As logon stacks are "java-only", there are no transaction names (which only exist on Web AS ABAP).
Regards,
Dominik

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