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  • Software Engineering Papers

    - by kunjaan
    Please recommend me software engineering/methodology/practices paper. So far I have enjoyed: 1968 Dijkstra : Go To Statement Considered Harmful Nikalus Wirth : Program Development by Stepwise Refinement 1971 David Parnas : Information Distribution Aspects of Design Methodology 1972 Liskov : Design Methodology for Reliable Software Systems Extensible Language : Schuman and P Jourrand R. Balzer Structured Programming : Dahl - Hierarchical Program StructuresImplementation Patterns 1971 Jim Morris Protection in Programming Languages 1973 Bill Wulf and Mary Shaw Global Variable Considered Harmful 1974 : Lisko and Zilles ADTs

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  • Oracle Data Pump import to a sql file error :ORA-31655 no data or metadata objects

    - by Francisco Quiñones
    Hello, I'm using Data Pump to export/import data, one requirement is to import data to a sql file. The OS is window. I made the follow export : expdp system/password directory=dpump_dir dumpfile=tablesdump.dmp content=DATA_ONLY tables=user.tablename and it works, I can see the file TABLESDUMP.DMP in the directory path. then when I tried to import it to a sql file: impdp system/password directory=dpump_dir dumpfile=tablesdump.dmp sqlfile=tables_export.sql the log show : ..... ORA-31655 no data or metadata objects selected for job ..... and the sql file is created empty in the directory path. I'm not DBA, I'm a Java developer , Can you help me? Thks

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  • CSS rules not getting applied in JSPs ?

    - by lakshmanan
    Im building a web application using struts2. I have an authentication interceptor at the top of all the interceptors (I have set it up as such) which checks whether a user is logged in. If not, it will give a login page as result. In login page, I have some set of standard CSS rules which I use for all the JSPs in the app. But that login page coming via that interceptor is not getting applied with CSS rules. Don't know why. Here is my JSP login page. <%@ page language="java" contentType="text/html; charset=ISO-8859-1" pageEncoding="ISO-8859-1"%> <%@ taglib prefix="s" uri="/struts-tags" %> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <link rel="stylesheet" href="styles/styles.css" type="text/css" /> <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> <title>Projit Login </title> </head> <body> <div id="header"> <h1>Projit</h1> </div> <div id="col1"> <s:form action="/login.action"> <s:textfield name="some field" label="Enter somefield" /> <s:textfield name="username" label="Username" /> <s:password name="password" label="Password" /> <s:submit value="Sign In" /> </s:form> </div> <div id="col2"> <h3>Login</h3> </div> <div id="footer"> some footer </div> </body> </html> the css file is present in WebContent/styles/styles.css I am using eclipse for development. this problem of CSS rules not getting applied occurs at times for other jsps as well inspite of the CSS file being present in the correct location. I guess there must be some URL thing behind this problem. I have tried hard but it is not working till now. Please help.

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  • What are the causes and solutions to a CS0122 error when sending onto an MSMQ queue from C#?

    - by Erick
    Having created a System.Messaging.MessageQueue using the MessageQueue(string queuePath) constructor, attempting to use MessageQueue.Send(obj) results in a 'Unable to generate a temporary class (result=1)' exception with the additional text: 'error CS0122: 'System.__ComObject' is inaccessible due to its protection level'. The queue itself has full control given to EVERYONE. When querying the MessageQueue object for it's read write permissions, it returns SendAndReceive. What causes this error and how do you resolve it?

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  • A couple questions using fwrite/fread with data structures

    - by Nazgulled
    Hi, I'm using fwrite() and fread() for the first time to write some data structures to disk and I have a couple of questions about best practices and proper ways of doing things. What I'm writing to disk (so I can later read it back) is all user profiles inserted in a Graph structure. Each graph vertex is of the following type: typedef struct sUserProfile { char name[NAME_SZ]; char address[ADDRESS_SZ]; int socialNumber; char password[PASSWORD_SZ]; HashTable *mailbox; short msgCount; } UserProfile; And this is how I'm currently writing all the profiles to disk: void ioWriteNetworkState(SocialNetwork *social) { Vertex *currPtr = social->usersNetwork->vertices; UserProfile *user; FILE *fp = fopen("save/profiles.dat", "w"); if(!fp) { perror("fopen"); exit(EXIT_FAILURE); } fwrite(&(social->usersCount), sizeof(int), 1, fp); while(currPtr) { user = (UserProfile*)currPtr->value; fwrite(&(user->socialNumber), sizeof(int), 1, fp); fwrite(user->name, sizeof(char)*strlen(user->name), 1, fp); fwrite(user->address, sizeof(char)*strlen(user->address), 1, fp); fwrite(user->password, sizeof(char)*strlen(user->password), 1, fp); fwrite(&(user->msgCount), sizeof(short), 1, fp); break; currPtr = currPtr->next; } fclose(fp); } Notes: The first fwrite() you see will write the total user count in the graph so I know how much data I need to read back. The break is there for testing purposes. There's thousands of users and I'm still experimenting with the code. My questions: After reading this I decided to use fwrite() on each element instead of writing the whole structure. I also avoid writing the pointer to to the mailbox as I don't need to save that pointer. So, is this the way to go? Multiple fwrite()'s instead of a global one for the whole structure? Isn't that slower? How do I read back this content? I know I have to use fread() but I don't know the size of the strings, cause I used strlen() to write them. I could write the output of strlen() before writing the string, but is there any better way without extra writes?

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  • PERL script error.

    - by FRESHTER
    !/usr/bin/perl use WWW::Mechanize; use Compress::Zlib; my $mech = WWW::Mechanize-new(); my $username = "9703460016"; #fill in username here my $keyword = "1raja1"; #fill in password here my $mobile = $ARGV[0]; my $text = $ARGV[1]; $deb = 1; print length($text)."\n" if($deb); $text = $text."\n\n\n\n\n" if(length($text) < 135); $mech-get("http://wwwl.way2sms.com/content/index.html"); unless($mech-success()) { exit; } $dest = $mech-response-content; print "Fetching...\n" if($deb); if($mech-response-header("Content-Encoding") eq "gzip") { $dest = Compress::Zlib::memGunzip($dest); $mech-update_html($dest); } $dest =~ s/ $mech-update_html($dest); $mech-form_with_fields(("username","password")); $mech-field("username",$username); $mech-field("password",$keyword); print "Loggin...\n" if($deb); $mech-submit_form(); $dest= $mech-response-content; if($mech-response-header("Content-Encoding") eq "gzip") { $dest = Compress::Zlib::memGunzip($dest); $mech-update_html($dest); } $mech-get("http://wwwl.way2sms.com//jsp/InstantSMS.jsp?val=0"); $dest= $mech-response-content; if($mech-response-header("Content-Encoding") eq "gzip") { $dest = Compress::Zlib::memGunzip($dest); $mech-update_html($dest); } print "Sending ... \n" if($deb); $mech-form_with_fields(("MobNo","textArea")); $mech-field("MobNo",$mobile); $mech-field("textArea",$text); $mech-submit_form(); if($mech-success()) { print "Done \n" if($deb); } else { print "Failed \n" if($deb); exit; } $dest = $mech-response-content; if($mech-response-header("Content-Encoding") eq "gzip") { $dest = Compress::Zlib::memGunzip($dest); #print $dest if($deb); } if($dest =~ m/successfully/sig) { print "Message sent successfully" if($deb); } exit; *In this code I face with an error saying There is no form with the requested fields at ./sms.pl line 65 Can't call method "value" on an undefined value at /usr/share/perl5/vendor_perl/WWW/Mechanize.pm line* 1348. Could any 1 guide me please

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  • sqlite ERROR no such column

    - by Richard
    Hi, Does anyone here have some experience with this error? Only If I use the WHERE clause, I get this error. I use php PDO to get the results. And this is my simple table $sql = "CREATE TABLE samenvatting ( stem_id INTEGER PRIMARY KEY AUTOINCREMENT, poll_id TEXT, stem_waarde_id TEXT, totaal INTEGER )"; $crud->rawQuery($sql); $poll_id = "somepoll"; $records = $crud->rawSelect('SELECT * FROM samenvatting WHERE poll_id=´.$poll_id); pdo abstract class public function conn() { isset($this->username); isset($this->password); if (!$this->db instanceof PDO) { $this->db = new PDO($this->dsn, $this->username, $this->password); $this->db->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION); } } public function rawSelect($sql) { $this->conn(); return $this->db->query($sql); } Thanks, Richard

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  • adding SSL to microchip Generic TCP server application

    - by Surjya Narayana Padhi
    Hi, Has anybody upgraded the code of generic tcp server application provided by Microchip to SSL? I added new listener port to existing server socket. But then also its not TCPPutIsReady state. When I tried to connect through ssh client Tera Term its asking for username and password. But does it required for client to provide username and password? I a bit new to SSL. So please let me know the steps to connect to any ssl server using Tera Term. Another doubt is that can i use a TCP server socket without using http or ftp or telnet session?

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  • copy file from unix system to windows using ant

    - by vishu
    can any one help me how to copy file from unix Windoes system to windows UNIX using ant? Thanks in advance EDIT Let me explain in detail what I am looking for I want to copy file from windows to unix machine (correcting my previous question not from unix to windows) using ANT. I thought of using ftp task. Before that as a check I tried to ftp unix sever from windows but it gave connection refused error(Do I need to provide my username and password,if that is the case what is the syntax). But I am able to connect through putty which asks for my user name and password. Does putty uses a different protocol. So if that is the case does ftp task works for me in ANT?. If not what task I need to use?

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  • Server authorization with MD5 and SQL.

    - by Charles
    I currently have a SQL database of passwords stored in MD5. The server needs to generate a unique key, then sends to the client. In the client, it will use the key as a salt then hash together with the password and send back to the server. The only problem is that the the SQL DB has the passwords in MD5 already. Therefore for this to work, I would have to MD5 the password client side, then MD5 it again with the salt. Am I doing this wrong, because it doesn't seem like a proper solution. Any information is appreciated.

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  • Alternatives to dotfuscator suite?

    - by SnOrfus
    I've been looking for solutions that provide a couple of types of protection and dotfuscator has been what I've landed on each time I look. Specifically, I like: code obfuscation their usage analytics tamper detection/notification shelf-life enforcement Now, I know that there's lots of alternatives to the first, some of which are free, but are there alternatives to the others? It's not that I don't want to pay the cost of dotfuscator suite, but I want to be informed before I write the cheque.

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  • Is it possible to write C# code as below and send email using network in different country?

    - by kedar karthik
    Is it possible to write C# code as below and send email using mnetwork in different country? MSExchangeWebServiceURL = mail.something.com/ews/exchange.asmx It's a web service URL. This works great when I run the same code from home network, my friends home network anywhere around, but when I run it from my client's location in Columbia it fails. I have a valid user name and password on that Exchange Server. Is there any configuration that I can set to achieve this? BTW this code below works when I run it within office network and any network within any home network. I have tried it at least with five friends network in Plano, Texas. I want this code to work running from any network in another country. My client in Columbia can connect to the web service using a browser using the same user name and password, but when I run the code above it is not able to connect to our web service.

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  • Session management with OpenID, in ASP.NET

    - by Andreas Grech
    I am currently playing with DotNetOpenAuth to make an ASP.NET (C#) website use OpenID instead of the normal login-password routine for user and session handling. Up till now, I have added the DotNetOpenAuth.dll into my project and tried a test login page with the following: <rp:OpenIdLogin ID="OpenIdLogin1" runat="server" /> When I run the page, I enter a valid myopenid url and the website redirects to the myopenid page, where I enter my password, and upon success, it returns back to my default.aspx, due to the following in my web.config: <authentication mode="Forms"> <forms defaultUrl="/Default.aspx" loginUrl="~/Login.aspx"/> </authentication> Now that the user is "logged in", how can handle my session? At the moment, I don't know how I can, for example, check if the session is still alive or how to terminate the session. My basic question is, how can I manage the session once the user is authenticated with OpenID ?

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  • C# Login Dialog Implementation

    - by arc1880
    I have implemented a LoginAccess class that prompts the user to enter their active directory username and password. Then I save the login data as an encrypted file. Every subsequent start of the application, the LoginAccess class will read the encrypted file and check against the active directory to see if the login information is still valid. If it is not, then it will prompt the user again. I have made it so that the reading of the encrypted file and displaying of the login dialog is done on a separate thread. A delegate is fired when the login process is complete. The issue that I'm having is that I have a class that is used in multiple places. This class contains the call to the LoginAccess object. Every time I instantiate a new object there are multiple calls to the LoginAccess object and I get multiple dialogs appearing when it tries to prompt for a username and password. Any suggestions on how to have only one dialog appear would be greatly appreciated.

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  • client side validation in ascx files (user controls) for asp.net mvc

    - by Sefer KILIÇ
    hi, I have a logOn forn in ascx files and I render it as partial. How I can add a clinet side validation to this form, have any idea ? My below code does not work <%= Html.ValidationSummary(true, "Giris basarisiz oldu. Lütfen hatalari düzeltip tekrar deneyin.") %> <% Html.EnableClientValidation(); %> <% using (Html.BeginForm("LogOnProcess", "Account")) { %> <div> <fieldset> <legend>Hesap Bilgileri</legend> <div class="editor-label"> <%= Html.LabelFor(m => m.UserName) %> </div> <div class="editor-field"> <%= Html.TextBoxFor(m => m.UserName) %> <%= Html.ValidationMessageFor(m => m.UserName) %> </div> <div class="editor-label"> <%= Html.LabelFor(m => m.Password) %> </div> <div class="editor-field"> <%= Html.PasswordFor(m => m.Password) %> <%= Html.ValidationMessageFor(m => m.Password) %> </div> <div class="editor-label"> <%= Html.CheckBoxFor(m => m.RememberMe) %> <%= Html.LabelFor(m => m.RememberMe) %> </div> <p> <input type="submit" value="Giris" /> </p> </fieldset> </div> <% } %>

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  • InvalidAttributeValueException when using non-ascii characters in JNDI

    - by matdan
    Hi, I have some trouble using JNDI since it accepts only 7-bits encoded parameters. I am trying to change an LDAP entry using JNDI with the following code : Attribute newattr = new BasicAttribute("userpassword", password); ModificationItem[] mods = new ModificationItem[1]; mods[0] = new ModificationItem(DirContext.REPLACE_ATTRIBUTE, newattr); context.modifyAttributes("uid=anID,ou=People,o=MyOrganisation,c=com", mods); If my password contains only ascii characters, it works perfectly, but if I use a non-ascii character, like "à", I have this error message : javax.naming.directory.InvalidAttributeValueException: [LDAP: error code 19 - The value is not 7-bit clean: à]; My ldap supports those characters so I guess it comes from JNDI. Does anyone know how to fix that? Am I supposed to convert my parameter? How can I do that easily? Thanks

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  • KO 2.3.4 - Accessing validation array from callbacks in models

    - by kenny99
    Hi, Apologies if this is an oversight or sheer stupidity on my part but I can't quite figure out how to access the validation array from a callback in a model (using ORM and KO 2.3.4). I want to be able to add specific error messages to the validation array if a callback returns false. e.g This register method: public function register(array & $array, $save = FALSE) { // Initialise the validation library and setup some rules $array = Validation::factory($array) ->pre_filter('trim') ->add_rules('email', 'required', 'valid::email', array($this, 'email_available')) ->add_rules('confirm_email', 'matches[email]') ->add_rules('password', 'required', 'length[5,42]') ->add_rules('confirm_password', 'matches[password]'); return ORM::validate($array, $save); } Callback: public function email_available($value) { return ! (bool) $this->db ->where('email', $value) ->count_records($this->table_name); } I can obviously access the current model from the callback, but I was wondering what the best way to add custom error from the callback would be?

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  • DBLinq not generating where clause

    - by sipwiz
    I'm testing out DBLinq-0.18 and DBLinq from SVN Trunk with MySQL and Postgresql. I'm only using a very simple query but on both database DBLinq is not generating a Where clause. I have confirmed this by turning on statement logging on Postgresql to check exactly what request DBLinq is sending. My Linq query is: MyDB db = new MyDB(new NpgsqlConnection("Database=database;Host=localhost;User Id=postgres;Password=password")); var customers = from customer in db.Customers where customer.CustomerUserName == "test" select customer; The query works ok but the SQL generated by DBLinq is of the form: select customerusername, customerpassword .... from public.customers There is no Where clause which means DBLinq must be pulling the whole table down before running the Linq query. Has anyone had any experience with DBLinq and know what I could be doing wrong?

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  • How to prevent popups when loading a keystore

    - by Newtopian
    Hi as corollary to this question I wanted to ask if you know how to prevent the poping of dialogue either to ask for password or to ask to insert a certificate. We are currently building a system where we have to use the windows keystore to get certificates that are stored on USB token containing both reader and certificate. Unlike the original question we do not experience problems when loading the keystore but when we are accessing it. If there is only a single certificate in the keystore no problem, we get the appropriate password popup at the appropriate time and that's it. However if a second USB key gets inserted in the system and later removed the entry remains in the keystore and from then-on every time we try to access information in the keystore we get a popup to insert the key. This occurs for every certificates in the store for which the key is not currently connected to the computer. The system we are interfacing with that requires these certificates necessitates that we perform multiple cryptographic operations and to have these popups to come up every times is rather annoying to say the least.

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  • web.config transforms not being applied on either publish or build installation package

    - by BenA
    Today I started playing with the web.config transforms in VS 2010. To begin with, I attempted the same hello world example that features in a lot of the blog posts on this topic - updating a connection string. I created the minimal example shown below (and similar to the one found in this blog). The problem is that whenever I do a right-click - "Publish", or a right-click - "Build Deployment Package" on the .csproj file, I'm not getting the correct output. Rather than a transformed web.config, I'm getting no web.config, and instead the two transform files are included. What am I doing wrong? Any help gratefully received! Web.config: <?xml version="1.0"?> <configuration xmlns="http://schemas.microsoft.com/.NetConfiguration/v2.0"> <connectionStrings> <add name="ConnectionString" connectionString="server=(local); initial catalog=myDB; user=xxxx;password=xxxx" providerName="System.Data.SqlClient"/> </connectionStrings> </configuration> Web.debug.config: <?xml version="1.0"?> <configuration xmlns:xdt="http://schemas.microsoft.com/XML-Document-Transform"> <connectionStrings> <add name="ConnectionString" connectionString="server=DebugServer; initial catalog=myDB; user=xxxx;password=xxxx" providerName="System.Data.SqlClient" xdt:Transform="SetAttributes" xdt:Locator="Match(name)"/> </connectionStrings> </configuration> Web.release.config: <?xml version="1.0"?> <configuration xmlns:xdt="http://schemas.microsoft.com/XML-Document-Transform"> <connectionStrings> <add name="ConnectionString" connectionString="server=ReleaseServer; initial catalog=myDB; user=xxxx;password=xxxx" providerName="System.Data.SqlClient" xdt:Transform="SetAttributes" xdt:Locator="Match(name)"/> </connectionStrings> </configuration>

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  • multiple login pages in ASP.NET forms authentication

    - by Brad
    My bank's website has 2 login pages for online banking. On the first page, I enter my username. If I don't enter a valid username, I get an error message, and do not get to the 2nd page. The 2nd page displays a picture based on my user name, and has me enter my password. If I manually type a URL to a page inside the site after entering my username but before entering my password, I am redirected back to the first login page. Is there a good way to implement this in ASP.NET with Forms Authentication? I only get 1 loginUrl in my web.config. I am fairly certain my bank uses Java.

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  • checkUnique function?

    - by Chris Leah
    Hey, so I have created a function to check the DB for unique entries, but when I call the function it doesn't seem to work and gives me a fatal error any ideas from the function or do you wish to see the sign up page calling it. Thanks :) //Check for unique entries function checkUnique($table, $field, $compared) { $query = $mysqli->query('SELECT '.$mysqli->real_escape_string($field).' FROM '.$mysqli->real_escape_string($table).' WHERE "'.$mysqli->real_escape_string($field).'" = "'.$mysqli->real_escape_string($compared).'"'); if(!$query){ return TRUE; } else { return FALSE; } } The page calling it..... if (!empty($_POST['username']) && !empty($_POST['password']) && $_POST['password']==$_POST['password_confirm'] && !empty($_POST['email']) && validateEmail($_POST['email']) == TRUE && checkUnqiue('users', 'email', $_POST['email']) == TRUE && checkUnique('users', 'username', $_POST['username']) == TRUE)

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  • JSF RuntimeException: Cannot find FacesContext

    - by Sunny Mate
    When i write <h:outputText value="Login Name"/> tag in my jsp i am getting "Cannot find FacesContext" error , with out that tag my jsp working fine here is my JSP <%@ page language="java" import="java.util.*" pageEncoding="ISO-8859-1"%> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <%@ taglib uri="http://java.sun.com/jsf/html" prefix="h" %> <%@ taglib uri="http://java.sun.com/jsf/core" prefix="f" %> <body> Login Name <input type="text" value=""/><br> **<h:outputText value="Login Name"/>** Password<input type="password" value=""/><br> <input type="submit" value="Login"> </body> </html>

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  • Problem authenticating with shiro in grails app

    - by xain
    I have a grails 1.2 app and I want to use declarative security in order to restrict accesses based on roles. I decided to try shiro, installed the plugin, but when I try to authenticate, the message "Invalid username and/or password" shows up in the header. I check the db entry and the user is there with the sha'ed password. No messages are shown neither in the console nor in the stacktrace file. I added "warn 'org.jsecurity'" to Config.groovy with no results. Any hints/tricks to troubleshoot this ?

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  • How to sett up hibernate to use Glassfish connection pool?

    - by jschoen
    I have set up a connection pool in Glassfish with a jndi resource for it also setup. I am stumped on how to configure hibernate to go get it. I have come across alot of write ups to configure it to use C3P0 connection pool. Well I am lost. I found that I need to set: hibernate.connection.datasource hibernate.jndi.url hibernate.jndi.class hibernate.connection.username hibernate.connection.password Would datasource be the same as the hibernate.connection.datasource set in the connection pool? What would hibernate.jndi.class be? Are hibernate.connection.username and hibernate.connection.password for the connection to the database or to the appserver? I assume this is to the database, but why do I need them since that is all set in the appserver?

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