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  • Is it a bad programming practise to have "Public" members inside an "Internal" class?

    - by Amby
    I mean, won;t it be more specific and appropriate if i "only" keep "protected","internal" and "private" members (field,method,property,event) in a class which is declared as "internal" ? I have seen this practice ( having "public" members in an "internal" class) in various code so just wanted to know is it a bad practice or does it has some benefit or advantage. [Only concerned about C#] Thanks for your interest.

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  • Is it a bad programming practice to have "Public" members inside an "Internal" class?

    - by Amby
    I mean, won;t it be more specific and appropriate if i "only" keep "protected","internal" and "private" members (field,method,property,event) in a class which is declared as "internal" ? I have seen this practice ( having "public" members in an "internal" class) in various code so just wanted to know is it a bad practice or does it has some benefit or advantage. [Only concerned about C#] Thanks for your interest.

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  • Where can I learn web programming from start to mastery?

    - by user353046
    I tried doing tutorials but it is unorganized and unstructured, where can I learn PHP from beginner to master? I'm looking for a site like www.w3chools.com, but somehow I feel it is incomplete, specially when it comes to more advanced functions. I know some basics but I wouldn't be able to for example make a secure online webstore, and I seem to be stuck at this point, how / where should I proceed?

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  • Confused about ASP.NET AJAX, AJAX, jQUERY and javascript

    - by Mr.Y
    Yesterday, I read couple of chapters on ASP.NET Ajax,and jQuery from my ASP.NET 4.0 book and I found those frameworks pretty interesting and decide to learn more about it. Today, I borrow some books from library on AJAX and Javascript. It seems ASP.NET ajax is different from Ajax and jQuery seems like the "new" javascript. Is that means I can skip javascript and learn jQUERY directly? On the other hand, the Ajax(non asp.net) book I borrow from library seems apply to the client side web programming only and looks quite difference from what I learned from ASP.NET AJAX. If I'm a ASP.NET developer I guess I should stick with ASP.NET AJAX instead of client side AJAX right? What about PHP? Is there a "PHP AJAX" similar to ASP.NET AJAX? It's not that I'm "lazy" to learn other tools, but I just want to focus on the right ones. Thx. The more I going deep

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  • How to introduce web development to non-programmers?

    - by Gulshan
    Once one of my non-programmer friends asked, "I have a cool website idea that I don't want to share. Rather I want to develop it on my own. So, I want to learn web development. Tell me what to do?" And sometimes many other people asked about how to start with web development as a profession. But they are non-programmers or not from Computer Science background. What should I suggest to them? Learning programming from the scratch? Or using CMS-like tools? Or anything else?

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  • Scrum for a single programmer?

    - by Rob Perkins
    I'm billed as the "Windows Expert" in my very small company, which consists of myself, a mechanical engineer working in a sales and training role, and the company's president, working in a design, development, and support role. My role is equally as general, but primarily I design and implement whatever programming on our product needs to get done in order for our stuff to run on whichever versions of Windows are current. I just finished watching a high-level overview of the Scrum paradigm, given in a webcast. My question is: Is it worth my time to learn more about this approach to product development, given that my development work items are usually given at a very high level, such as "internationalize and localize the product". If it is, how would you suggest adapting Scrum for the use of just one programmer? What tools, cloud-based or otherwise, would be useful to that end? If it is not, what approach would you suggest for a single programmer to organize his efforts from day to day? (Perhaps the question reduces to that simple question.)

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  • Do you have any “Family Feud” style questions and answers for a game for high school students?

    - by Ben Jakuben
    I am gathering questions and responses in math, science, and technology for a "Family Feud" style game for high school students. I am having trouble finding and thinking of questions, especially in the technology realm. Technology (programming or general tech) questions are preferred. If you have never seen the game show, "Family Feud" involves two teams trying to guess the most popular responses to questions asked to a group of 100 respondents. The team must guess all the popular responses to get the points for the question. For example, if the question is, "What are the major tags in HTML 4.0?", the responses might be: P (64 votes) DIV (16 votes) TABLE (8 votes) BLINK (4 votes)

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  • IOUG and Oracle Enterprise Manager User Community Twitter Chat and Sessions at OpenWorld

    - by Anand Akela
    Like last many years, we will have annual Oracle Users Forum on Sunday, September 30th, 2012 at Moscone West, Levels 2 & 3 . It will be open to all registered attendees of Oracle Open World and conferences running from September 29 to October 5, 2012 . This will be a great  opportunity to meet with colleagues, peers, and subject matter experts to share best practices, tips, and techniques around Oracle technologies. You could sit in on a special interest group (SIG) meeting or session and learn how to get more out of Oracle technologies and applications. IOUG and Oracle Enterprise Manager team invites you to join a Twitter Chat on Sunday, Sep. 30th from 11:30 AM to 12:30 PM.  IOUG leaders, Enterprise Manager SIG contributors and many Oracle Users Forum speakers will answer questions related to their experience with Oracle Enterprise Manager and the activities and resources available for  Enterprise Manager SIG members. You can participate in the chat using hash tag #em12c on Twitter.com or by going to  tweetchat.com/room/em12c      (Needs Twitter credential for participating).  Feel free to join IOUG and Enterprise team members at the User Group Pavilion on 2nd Floor, Moscone West. Here is the complete list of Oracle Enterprise Manager sessions during the Oracle Users Forum : Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi;} Time Session Title Speakers Location 8:00AM - 8:45AM UGF4569 - Oracle RAC Migration with Oracle Automatic Storage Management and Oracle Enterprise Manager 12c VINOD Emmanuel -Database Engineering, Dell, Inc. Wendy Chen - Sr. Systems Engineer, Dell, Inc. Moscone West - 2011 8:00AM - 8:45AM UGF10389 -  Monitoring Storage Systems for Oracle Enterprise Manager 12c Anand Ranganathan - Product Manager, NetApp Moscone West - 2016 9:00AM - 10:00AM UGF2571 - Make Oracle Enterprise Manager Sing and Dance with the Command-Line Interface Ray Smith - Senior Database Administrator, Portland General Electric Moscone West - 2011 10:30AM - 11:30AM UGF2850 - Optimal Support: Oracle Enterprise Manager 12c Cloud Control, My Oracle Support, and More April Sims - DBA, Southern Utah University Moscone West - 2011 11:30AM - 12:30PM IOUG and Oracle Enterprise Manager Joint Tweet Chat  Join IOUG Leaders, IOUG's Enterprise Manager SIG Contributors and Speakers on Twitter and ask questions related to practitioner's experience with Oracle Enterprise Manager and the new IOUG 's Enterprise Manager SIG. To attend and participate in the chat, please use hash tag #em12c on twitter.com or your favorite Twitter client. You can also go to tweetchat.com/room/em12c to watch the conversation or login with your twitter credentials to ask questions. User Group Pavilion 2nd Floor, Moscone West 12:30PM-2:00PM UGF5131 - Migrating from Oracle Enterprise Manager 10g Grid Control to 12c Cloud Control    Leighton Nelson - Database Administrator, Mercy Moscone West - 2011 2:15PM-3:15PM UGF6511 -  Database Performance Tuning: Get the Best out of Oracle Enterprise Manager 12c Cloud Control Mike Ault - Oracle Guru, TEXAS MEMORY SYSTEMS INC Tariq Farooq - CEO/Founder, BrainSurface Moscone West - 2011 3:30PM-4:30PM UGF4556 - Will It Blend? Verifying Capacity in Server and Database Consolidations Jeremiah Wilton - Database Technology, Blue Gecko / DatAvail Moscone West - 2018 3:30PM-4:30PM UGF10400 - Oracle Enterprise Manager 12c: Monitoring, Metric Extensions, and Configuration Best Practices Kellyn Pot'Vin - Sr. Technical Consultant, Enkitec Moscone West - 2011 Stay Connected: Twitter |  Face book |  You Tube |  Linked in |  Newsletter

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  • My MIX10 recap at the Montreal User Group

    Ive just done a session at the Montreal .NET User Group to share what I learnt at MIX10. I talked about: Silverlight Media Framework open sourced Silverlight 4 RC Windows Phone 7 Internet Explorer 9 Pivot OData Jesse Liberty cancelled at the very last minute so for the second part of the meeting we had Louis-Philippe Pinsonneault presenting Windows Phone 7, we can thank him for his quick preparation just a few hours before the meeting! You can view all MIX videos (keynote and...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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  • My MIX10 recap at the Montreal User Group

    - by pluginbaby
    I’ve just done a session at the Montreal .NET User Group to share what I learnt at MIX10. I talked about: Silverlight Media Framework open sourced Silverlight 4 RC Windows Phone 7 Internet Explorer 9 Pivot OData Jesse Liberty cancelled at the very last minute so for the second part of the meeting we had Louis-Philippe Pinsonneault presenting Windows Phone 7, we can thank him for his quick preparation just a few hours before the meeting! You can view all MIX videos (keynote and sessions) for free at: http://live.visitmix.com/Videos Here are the other links I mentioned on my slides: http://www.silverlight.net http://developer.windowsphone.com/ http://www.ietestdrive.com http://www.getpivot.com http://www.odata.org   Download slides (french)   Technorati Tags: MIX10

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  • Windows roaming profile when creating a new user profile

    - by molecule
    When a particular user is having a lot of problems with Windows XP e.g. applications crashing, unresponsive applications (which used to work), and as a general troubleshooting practice for a domain user, I normally rename that user's old profile and get him/her to logon to create a "fresh" profile (on the same PC). More often than not, this will solve the problem albeit some reconfiguration i.e. Outlook, Excel add-ins etc. As I took over the systems admin role from another administrator, I would like to know what is the easiest way to find out (either through a third party or some Windows administrative tool) what settings are carried over if the profile is a Roaming Profile. I tested creating a new user profile for one of my users and it seems basic Outlook settings such as the user's mailbox and PSTs are carried over automatically when I create a new user profile. I suspect this is done through a batch file loaded as part of the login script. However, my knowledge of scripting is limited and I don't want any corruptions to be carried over to the new profile. Can someone share their experiences on this? Thanks in advance.

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  • Learning language is enough to create average applications ?

    - by Freshblood
    Many books teach a programming language. However, knowing a specific language is not the same as knowning application or GUI design nor project layout. So, attempting to make an average application fails after learning a language. It is clear that knowing a language is not enough to make an application. If you agree with what I have said, why doesn't anyone mention this instead of teaching pure language syntax and features? Why books don't mention how to make a better application ?

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  • "/etc/init.d/networking restart" with non-root user

    - by bonchen
    I have a thin client with 112mb RAM which boots ubuntu server 12.04.1 from a usb drive with openbox and it is to be used by students to communicate with cisco equipment. And because of this the students need to be able to reconfigure the network interface and then restart it without a reboot using the only user - cisco. This is what I have so far: adduser cisco usermod -a -G dialout cisco chown root:cisco /etc/network/interfaces chmod 664 /etc/network/interfaces chmod u+s /sbin/shutdown chmod u+s /sbin/reboot chmod u+s /sbin/poweroff chmod u+s /run/network/if* chmod u+s /sbin/ifdown chmod u+s /sbin/ifup And when I run /etc/init.d/networking restart as cisco I get: *Reconfiguring network interfaces... rm: cannot remove `eth0.dhclient': Permission denied Failed to send flush request: Operation not permitted RTNETLINK answers: Operation not permitted Any ideas on how to get this working? Thanks!

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  • Triggering custom events in AJAX callbacks

    - by Sabrina Gelbart
    I'm pretty new to JavaScript, but one of the things that's been frustrating is that our AJAX callbacks have been getting packed with different functionality, making it difficult to keep everything separated and organized. I'm really new to programming, I have a feeling learning MVC a bit more would help me, but for now using custom events seems like it could help me keep my code a lot cleaner and prevent some problems. Here's what I'm talking about: function myAjaxFunction(){ $.post('ajax/test.html', function(data) { $(document).trigger('testDataLoaded',data); }); } function myOtherFunctionThatsDependentUponAjax(){ $(document).one('testDataLoaded', function(data){ alert (data); } } I also don't know if it's ok that I'm triggering document or not... Are there any patterns that look like this that I can read more about? What are the potential problems with this?

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  • visual basic coach needed [closed]

    - by Danny
    0 down vote favorite I am trying to learn visual basic. I used to program in gw-basic and have trouble learning vb.net by reading and googling all the time. It takes so much time to find the answers to my programming problems and even then i do not understand the why it have to be done that way. I have beginners questions like finding childwindows using enumwindow. Then googling for hours and hours i do not seem to grasp it (must be my old age). I would like to get someone i could learn from by asking questions about what i want to program and learn from it. not to just finish the program but to learn and understand it too. Someone who dont find questions stupid to ask as i try to build my understanding of the visual basic environment. I hope to communicate by using skype voice or chat or other direct means when time permits it. Cheers, Danny

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  • How do I block a user-agent from Apache

    - by rubo77
    How do I realize a UA string block by regular expression in the config files of my Apache webserver? For example: if I would like to block out all bots from Apache on my debian server, that have the regular expression /\b\w+[Bb]ot\b/ or /Spider/ in their user-agent. Those bots should not be able to see any page on my server and they should not appear neither in the accesslogs nor in the errorlogs. http://global-security.blogspot.de/2009/06/how-to-block-robots-before-they-hit.html supposes to uses mod_security for that, but isn't there a simple directive for http.conf?

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  • BASIC on Ubuntu

    - by Tim Lytle
    Was asked by a new Ubuntu user - who also wants to learn about programming - what he could use to run BASIC code. He was working through a BASIC book before trying out Ubuntu, and he'd like to continue without having to switch back to Windows. It looks like there are a few BASIC packages in the standard repositories, as well as projects like Mono which may include some kind of BASIC support. What would be a good recommendation from the standard repositories - or from a deb package - for someone learning the basics of BASIC and new to Ubuntu?

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  • Windows roaming profile when creating a new user profile

    - by molecule
    Hi all, When a particular user is having a lot of problems with Windows XP e.g. applications crashing, unresponsive applications (which used to work), and as a general troubleshooting practice for a domain user, I normally rename that user's old profile and get him/her to logon to create a "fresh" profile (on the same PC). More often than not, this will solve the problem albeit some reconfiguration i.e. Outlook, Excel add-ins etc. As I took over the systems admin role from another administrator, I would like to know what is the easiest way to find out (either through a third party or some Windows administrative tool) what settings are carried over if the profile is a Roaming Profile. I tested creating a new user profile for one of my users and it seems basic Outlook settings such as the user's mailbox and PSTs are carried over automatically when I create a new user profile. I suspect this is done through a batch file loaded as part of the login script. However, my knowledge of scripting is limited and I don't want any corruptions to be carried over to the new profile. Can someone share their experiences on this? Thanks in advance.

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  • where can I find the user in this IIS error 'Login failed for user 'IIS APPOOL\Web2'

    - by Jack
    I encounter the following error: Cannot open database "testbase" requested by the login. The login failed. Login failed for user 'IIS APPPOOL\Web2'. Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Exception Details: System.Data.SqlClient.SqlException: Cannot open database "testbase" requested by the login. The login failed. Login failed for user 'IIS APPPOOL\Web2'. So, where can I give this user Web2 permission? (By the way, the server do not have such user Web2 but there is a folder called Web2 located at the wwwroot folder.) I search for answers but all failed as follows: [1] Add the user IUSR to the folder and give it read permission. [2] http://www.codekicks.com/2008/11/cannot-open-database-northwind.html [3] http://blog.sqlauthority.com/2009/08/20/sql-server-fix-error-cannot-open-database-requested-by-the-login-the-login-failed-login-failed-for-user-nt-authoritynetwork-service/

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  • Resetting Your Oracle User Password with SQL Developer

    - by thatjeffsmith
    There’s nothing more annoying than having to email, call, or log a support ticket to have one of your accounts reset. This is no less annoying in the Oracle database. Those pesky security folks have determined that your password should only be valid for X days, and your time is up. Time to reset the password! Except…you can’t log into the database to reset your password. What now? Wait a second, look at this nifty thing I see in SQL Developer: Right click on my connection, reset password not available! Why not? The JDBC Driver Doesn’t Support This Operation We can’t make this call over the Oracle JDBC layer, because it hasn’t been implemented. However our primary interface, OCI, does indeed support this. In order to use the Oracle Call Interface (OCI), you need to have an Oracle Client on your machine. The good news is that this is fairly easy to get going. The Instant Client will do. You have two options, the full or ‘Lite’ Instant Clients. If you want SQL*Plus and the other client tools, go for the full. If you just want the basic drivers, go for the Lite. Either of these is fine, but mind the bit level and version of Oracle! Make sure you get a 32 bit Instant Client if you run 32 bit SQL Developer or 64 bit if you run 64 Here’s the download link What, you didn’t believe me? Mind the version of Oracle too! You want to be at the same level or higher of the database you’re working with. You can use a 11.2.0.3 client with 11.2.0.1 database but not a 10gR2 client with 11gR2 database. Clear as mud? Download and Extract Put it where you want – Program Files is as good as place as any if you have the rights. When you’re done, copy that directory path you extracted the archive to, because we’re going to add it to your Windows PATH environment variable. The easiest way to find this in Windows 7 is to open the Start dialog and type ‘path’. In Windows 8 you’ll cast your spell and wave at your screen until something happens. I recommend you put it up front so we find our DLLs first. Now with that set, let’s start up SQL Developer. Check the Connection Context menu again Bingo! What happened there? SQL Developer looks to see if it can find the OCI resources. Guess where it looks? That’s right, the PATH. If it finds what it’s looking for, and confirms the bit level is right, it will activate the Reset Password option. We have a Preference to ‘force’ an OCI/THICK connection that gives you a few other edge case features, but you do not need to enable this to activate the Reset Password. Not necessary, but won’t hurt anything either. There are a few actual benefits to using OCI powered connections, but that’s beyond the scope of today’s blog post…to be continued. Ok, so we’re ready to go. Now, where was I again? Oh yeah, my password has expired… Right click on your connection and now choose ‘Reset Password’ You’ll need to know your existing password and select a new one that meets your databases’s security standards. I Need Another Option, This Ain’t Working! If you have another account in the database, you can use the DBA Panel to reset a user’s password, or of course you can spark up a SQL*Plus session and issue the ALTER USER JEFF IDENTIFIED BY _________; command – but you knew this already, yes? I need more help ‘installing’ the Instant Client, help! There are lots and lots of resources out there on this subject. But I also know from personal experience that many of you have problems getting this to ‘work.’ The key things to remember is to download the right bit level AND make sure the client install directory is in your path. I know many folks that will just ‘install’ the Instant Client directly to one of their ‘bin’ type directories. You can do that if you want, but I prefer the cleaner method. Of course if you lack admin privs to change the PATH variable, that might be your only option. Or you could do what the original ORA- message indicated and ‘contact your DBA.’

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  • HTTPS on all pages where user is logged on

    - by Tom Gullen
    I know this is considered best practise to prevent cookie hijacking. I would like to adopt this approach, but ran across a problem on our forum where the users post images which either aren't posted with URL's over HTTPS or the url itself doesn't support HTTPS. This throws up a lot of ugly browser warnings. I see I have two options: Disable HTTPS for the forum Force all user posted content to start with // in the url so it selects the right protocol, if it doesn't support HTTPS so be it Do I have any other options? How do other sites deal with this?

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  • Is LISP still useful in, and which version is most used in todays world ?

    - by shan23
    I try to teach myself a new programming language in regular intervals of time. Recently, I've read how Lisp and its dialects are at the complete opposite end of the spectrum from languages like C/C++, which made me curious enough to know more about it. However, two things are unclear to me, and I'm looking for guidance on them : Is LISP still practiced/used in todays world, or is it a legacy language like FORTRAN/COBOL ? I mean, apart from maintaining existing code, is it used on new projects at all ? What is the most widely used dialect ? I came across Scheme and Common Lisp as the 2 most prevalent dialects, and wanted your opinion as to which is the most favored/useful one to learn - and would be immensely gratified if you can suggest any resources for a rank beginner to start from. While eager to learn a language which is fundamentally different from the procedural languages I'm used to, I don't want to invest undue effort in something if its totally obsolete - I'd still learn it if it was professionally "dead", but only with an academic perspective...

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  • Active Directory LDAP and user issues (using apache2 for svn access)

    - by CaCl
    I currently have a setup where I work that lets users use their active directory domain logins and passwords to authenticate and authorize access to Subversion. Currently I need to allow application accounts the same access. So our IT group creates application accounts in the active directory for us to use. But they want to be "secure" so they set the "Workstations Allowed" to be only a limited number of workstations. So when an application account hits the apache2 server for authentication they can't login for some reason and I'm having a heck of a time trying to debug. The error logs only show me: [Tue Apr 06 11:24:25 2010] [warn] [client 24.24.24.24] [3469] auth_ldap authenticate: user appuser13 authentication failed; URI /svn [ldap_simple_bind_s() to check user credentials failed][Invalid credentials] [Tue Apr 06 11:24:25 2010] [error] [client 24.24.24.24] user appuser13: authentication failure for "/svn": Password Mismatch I've checked the password numerous times and it appears to be correct but I can't seem to get the user to authenticate properly. Below is a snippet of the apache configuration for ldap: # Auth providers # Active Directory <AuthnProviderAlias ldap ldap1> AuthBasicProvider ldap AuthLDAPURL "ldap://dmain.company.com:389/dc=dmain,dc=company,dc=com?sAMAccountName?sub?(objectClass=*)" AuthLDAPBindDN "CN=svnuser13,OU=Application Accounts,dc=dmain,dc=teradata,dc=com" AuthLDAPBindPassword secret3 </AuthnProviderAlias> # Another set of users from a different group <AuthnProviderAlias ldap ldap2> AuthBasicProvider ldap AuthLDAPURL ldap://diffldapserver:389/dc=specialusers,dc=com?uid </AuthnProviderAlias> # Another set of users from a different group <AuthnProviderAlias file file1> AuthUserFile /var/svn/auth/htpasswd </AuthnProviderAlias> <Location /svn> DAV svn SVNPath /var/svn Satisfy Any Require valid-user AuthType Basic AuthName "SVN Repository" AuthBasicProvider ldap1 file1 ldap2 AuthzSVNAccessFile /var/svn/auth/access AuthzLDAPAuthoritative on Require valid-user </Location> Any help, like tips for debugging is appreciated!

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  • UK Connected Systems User Group - Udi Dahan Event Topic change

    - by Michael Stephenson
    Hi Just wanted to get the word out about a change to the may user group event.  Udi Dahan will present a new topic which he has not presented in the UK before.  Details below. To register for this event please refer to: http://ukconnectedsystemsusergroup.org/UpcomingEvents.aspx Title: High Availability - A Contrarian View   Abstract: Many developers are aware of the importance of high availability, critically analyzing any single points of failure in the infrastructure. Those same developers rarely give a second thought to the periods of time when a system is being upgraded. Even if all the servers are running, most systems cannot function in-between versions. Yet with the increased pace of business, users are demanding ever more frequent releases. The poor maintenance programmers and system administrators are left holding the bag long after the architecture that sealed their fate was formulated. Join Udi for some different perspectives on high availability - architecture and methodology for the real world.

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