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• What are some of the must know concepts in ASP.NET?

  - by CodeToGlory

  I am giving a small presentation to a group of Java developers and looking for some core areas to target. Ideally I would like to only talk about the core concepts in ASP.NET. I am coming up with Authentication Session State ASP.NET MVC LINQ (more .net) Any more that I should be considering?

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• Sending messages between two Python servers

  - by Will

  I have two servers - one Django, the other likely to be written in Python - and one is putting 'tasks' into a database and another is processing these tasks. They share a database, but I want the processor to react quickly to new tasks rather than polling periodically. Are there any straightforward ways for two Python servers to talk to one another, or does the task processor have to have web-hooks or something? It feels there ought to be a blessed way to do this...

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• I have a ListView using a custom ArrayList adapter - what's the best way to implement filtering ? An

  - by Eno

  Subject says it all. I have seen examples implementing a custom Filter. The Android developer docs talk about implementing a Filterable interface. Does anyone have any advice and/or sample code on the best way to implement filtering in a ListView ?

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• Can I use a filehandle instead of a filename for creating DBM files?

  - by Dancrumb

  I'm using MLDBM to persist some Perl data structures and I'm wondering if there's an alternative to the following: tie %hash, "MLDBM", $dbm_file, O_CREAT | O_RDWR, 0644; Primarily, I'd like to be able to use STDOUT, rather than a known file name. This could then be redirected to a file on the shell-side. I've been searching with keywords like "tie", "DBM" and "filehandle", but the hits tend to talk about tying filehandles to things, as opposed to things to filehandles. Any suggestions?

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• What compliance and legal clearances are required to use Google MAP API with Iphone Apps?

  - by Sak

  We are using 2 following google services, we need to talk to google folks if we need to do some additional stuff to fulfill the conditions: Reverse Geocoding APIs: For getting city and state from the iphone's geocodes (latitudes and longitudes) Doing a Local Business Search: based on city and state Also is it mandatory to embade Google maps with iphone apps while using these Google Maps APS?:

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• Any Javascript optimization benchmarks?

  - by int3

  I watched Nicholas Zakas' talk, Speed up your Javascript, with some interest. I liked how he benchmarked the various performance improvements created by various optimization techniques, e.g. reducing calls to deeply nested objects, changing loops to count down instead of up, etc. I would like to run these benchmarks myself though, to see exactly how our current browsers are faring. I guess it wouldn't be too difficult to cook up some timed loops, but I'd like to know if there are any existing implementations out there.

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• Differences between DB2 and Oracle

  - by Ondrej Slinták

  We had a talk with colleagues about databases yesterday as we will have a DB2 education in few weeks. I'm wondering, what are the differences between DB2 and Oracle as two major enterprise solutions? Are there any limitations in comparison to each other? Are there any tasks more suitable for DB2 or Oracle? (I found this article, but I somehow doubt it covers everything)

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• Book on C++ for understading of advance concepts

  - by Invincible

  What is good book for industry level C++ programming? I am not looking for C++ book for beginners which talk about data types and control structure. I am looking for more advance book. For example, how to build system application using C++. Any kind of guidance will be very helpful. Thank in advance.

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• Sanitize GET query with Apache

  - by Freelancer

  Hello everyone, I see there's a lot of talk here about how to go about sanitizing data. Could it be as simple as adding this rewrite rule to .htaccess? RewriteRule ^([\w\-]+)$ index.php?page=$1 To my understanding this will allow only letters, numbers, _ and - in $1, am I right? If you add to this usage of prepared statements for SQL queries, it should be pretty proof, is that right? Somehow feels like too easy to be true, am I missing something, any ways to firm it up?

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• Where/when does the object impedence mismatch occur?

  - by dotnetdev

  When people talk about object impedence mismatch, where does the mismatch happen? What can't a database interpret from an object model? Thanks

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• topics in distributed systems

  - by scatman

  what do you think is an interesting topic in distributed systems. i should pic a topic and present it on monday. at first i chose to talk about Wuala, but after reading about it, i don't think its that interesting. so what is an interesting (new) topic in distributed systems that i can research about. sorry if this is the wrong place to post.

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• Amazon EC2 EBS volume scheduled backup/snapshots using puppet

  - by Ehrann Mehdan

  I am not a Linux admin, although I wish I was, and I have seen these questions Amazon EC2 Backup Strategy Amazon EC2 + EBS:: Regular backup plan? Simple Backup Strategy for Amazon EC2 instances / volumes? And this suggestion http://alestic.com/2009/09/ec2-consistent-snapshot I tried using command line + crontab (the command line works, but crontab for some reason, doesn't) But I'm still pretty lost, all I want is an automated, rolling backup of my amazon EC2 (EBS) data (by rolling I mean keep 3-4 weeks back, but delete old snapshots as new ones come for cost control) And as things usually go, if there is something that is hard and painful, someone creates a solution for it. My question is simple, is there a way using a tool like Puppet to do it without a painful learning curve? (or via other tools like http://ylastic.com) If yes, how?

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• Need to open links in new tab in ie8 !

  - by BHOdevelopper

  I have a sidebar (right sided iframe) and when i click on a link in it, it opens a new window in IE8, (in firefox it open a new tab). What do i need to do to open links in IE8 in a new tab. I already set the Tools-Internet Options-Settings- 'Always open pop-ups in a new tab' and 'A new tab in the current window' open in new tab but still doesn't work. My links are pretty simple, what am i missing ? exemple: text. Also some site are saying to register Regsvr32 actxprxy.dll to fix this problem, still doesn't work. And i want this to work with a simple click, no 'right-click-open in new tab' option. I also hope i won't get the 'can't change how ie8 works' answer. ;)

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• Can I auto-forward Gmail to multiple addresses?

  - by Yuval

  Hi, I have set up a Gmail account with the intention of having it function as a mail hub, meaning it should forward every mail item to all of its contact list, in this case my friends and me. I created a simple filter for all incoming items (from:*), but the 'Forward it to' field will only allow me a single email address, and not even a contact group. Is there a way around this? And why is such a simple feature not available in Gmail? I thought they were out of beta...

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• I can't send email from my server to gmail addresses

  - by brianegge

  I'm using postfix, and have setup spf, dkim, and domainkeys. I can get my email to go to Yahoo, but not gmail. Here's the headers from an email send to Yahoo. Yahoo reports the email as domain key verified. X-Apparently-To: brianegge at yahoo.com via 68.142.206.167; Sat, 20 Mar 2010 05:29:19 -0700 Return-Path: <domains at theeggeadventure.com> X-YahooFilteredBulk: 67.207.137.114 X-YMailISG: x7_Rl9EWLDuugoqPcORhih0FeQMOaIIpz4qfuu9ttx1xbo3uKI2kz.CLUy2cJ1BTtHAwuJtrsGRsveHIx.Dx95avNGlPPGWy_cSpnEwWLXGxBciO.YgtSQxdURQiWLCLvbHej0QPjQIHFjAFjdeGhJd2Y8NgTW1wcExq45Sb7LMlOGvtGMjSQuc8QazwXUxpZrQbIxgSQUTmzQO1x30xaZ2Us6TQTab7Wpya6OgAX.emKOM3phfS5kfhYj9FLQ.qi32sFNWnAoFdVK596OTP2F63PAJOVM5qPsM2jIAbJylIBmnj94LO7hOVr3KOS6XLtCPRn2Oe X-Originating-IP: [67.207.137.114] Authentication-Results: mta1055.mail.mud.yahoo.com from=theeggeadventure.com; domainkeys=pass (ok); from=theeggeadventure.com; dkim=pass (ok) Received: from 127.0.0.1 (EHLO mail.theeggeadventure.com) (67.207.137.114) by mta1055.mail.mud.yahoo.com with SMTP; Sat, 20 Mar 2010 05:29:19 -0700 Received: by mail.theeggeadventure.com (Postfix, from userid 1003) id BB5B01C16A4; Sat, 20 Mar 2010 12:29:16 +0000 (UTC) DomainKey-Signature: a=rsa-sha1; s=2010; d=theeggeadventure.com; c=simple; q=dns; b=JHbK9VhqyQTfpQFqaXxJrKpEG9h9H0IZ0LdWoBooJEA7hv3SYWmFUtyE247EuwoaG gzApKJ1DuRhwESZ7PswrbzuaUL8poAUO8LmMvZ+OqnDolgNSJUYWu0FcO+fe3H4m9ZD grkj0xMpHw+uFjXV4plKO+sa8olJXJAmP+9cMEo= X-DKIM: Sendmail DKIM Filter v2.8.2 mail.theeggeadventure.com BB5B01C16A4 DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=theeggeadventure.com; s=2010; t=1269088156; bh=bUlMldcnzFCmCmNT8qjpRl6fiY1YyjiZiC9jhCXASOw=; h=Subject:To:Message-Id:Date:From; b=EVNolTlh4Gch5/HIrrHaRQvcApl7wkB42gB44NsPcLZD2QrhuOvnhanhnEB4UbV0e A+3dAOjhX7LKzgGrn11jXNTiEjNX1vQDsX3HyG0fNra73aWiGTzr1nHJfnuEJ7Ph0j 5tp0HRL5jjikD1XJcvmsYzTpT22mxuz60HXYRB1s= Subject: cron To: <brianegge at yahoo.com> X-Mailer: mail (GNU Mailutils 1.2) Message-Id: <[email protected]> Date: Sat, 20 Mar 2010 12:29:16 +0000 (UTC) From: This sender is DomainKeys verified [email protected] (domains) View contact details Content-Length: 818 When I send to gmail, I see the following in my server log, but the message doesn't even reach my spam folder. Mar 20 12:59:12 Everest postfix/pickup[27802]: C81C61C16A4: uid=1000 from=<egge> Mar 20 12:59:12 Everest postfix/cleanup[27847]: C81C61C16A4: message-id=<[email protected]> Mar 20 12:59:13 Everest postfix/qmgr[27801]: C81C61C16A4: from=<[email protected]>, size=2784, nrcpt=1 (queue active) Mar 20 12:59:14 Everest postfix/smtp[27849]: C81C61C16A4: to=<brianegge at gmail.com>, relay=gmail-smtp-in.l.google.com[209.85.223.24]:25, delay=2.1, delays=0.39/0.28/0.13/1.3, dsn=2.0.0, status=sent (250 2.0.0 OK 1269089954 32si4566750iwn.51) Mar 20 12:59:14 Everest postfix/qmgr[27801]: C81C61C16A4: removed I've send to email to test services, and the report everything verifies ok. I've also checked all the RBL lists, and I'm not on any of them.

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• Best free (or cheap) ASP.NET based CMS for a club/association?

  - by marc_s

  I've been looking for a simple, intuitive ASP.NET based CMS to handle my club/association site. It should be based on ASP.NET so I can add some extra specific pages offer a membership system, e.g. I want to be able to define members which can e.g. comment posts, while anonymous users can only read (no active participation) have features like news, forums, blogs, picture gallery be simple and easy to use I've been looking at GraffitiCMS: so far my favorite, but it has no forum, and no membership system, and no future, it seems - no development whatsoever in over a year :-( Sitefinity: had extreme trouble even getting it installed, and when it's finally up and running, I find it overly complicated and not intuitive at all Umbraco: same problem - hard to install, hard to get up and running, the intro videos on their site are only available to paying subscribers (what's up with that deal???)..... DotNetNuke: seems like a major overkill Community Server: seems like a major overkill - and seems to be more and more commercial, only Any others I've missed that I should have definitely looked at ??

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• Windows 7 won't recognize backup set can I script extracting the files in some other way?

  - by datatoo

  The Windows 7 Backup/Restore created multiple backup sets and I was able to restore the oldest version, but not the most recent, which is not seen by the application. I do see all of the zip files and there are hundreds in later versions. Is there a way to extract each of these correctly outside of the regular restoration method? Perhaps scripting an extract of each day one after another? further clarifying The backup files were all made to an external drive. The original computer died completely, power supply, drives everything. I am trying to reconstruct as much as possible and the only backup set recognized is 6 months older. This was recovered over a new install, but unzipping thousands of zip files is not really a simple unzip copy project as the original paths are not a simple thing to reconstruct.

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• How do I change the number of days a copied transaction log is kept in a log shipping configuration?

  - by Decker

  I think this is a pretty simple and perhaps stupid question. I've established log shipping between two SQL Server 2008 servers using the GUI (i.e. the SQL Server Management Studio). It's been running fine -- but now I want to change the number of days the copied files are retained on the secondary server. Is it simply a matter of going back to the GUI and change it there. Is it smart enough just to make that simple change or is the GUI only used to create the initial log shipping configuration?

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• How to connect devices behind Comcast router/modem with devices behind wireless router

  - by deeperDATA

  I know this is going to seem like a simple solution but I have been unable to find a clear answer through Google. Simple office setup: I have a Comcast modem/router that has 4 hard wired ports. In one of those ports I have a Cisco wireless router which also has 4 of its own ports. What is the method for getting devices behind the modem/router to ping/communicate with devices behind the wireless router? They are all on the same subnet but the IP ranges differ. The router produces 192.168.1.1 by default while the Comcast modem/router produces 10.1.10.1 by default. I think what I'm attempting to do might be considered "extending" the modem/router's network but I'm not sure. Thank you in advance for your assistance.

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• XBMC: Viewing podcasts in 'Library Mode'

  - by greggannicott

  I'm having a great time getting to know XBMC, and so far for the most part I've been really happy with the results. I was chuffed when I followed the advice on this SU post and added TWiT as a video podcast with ease. However, when I go into Library Mode I can no longer access the podcasts I've added. I realise that one simple work-around is to come out of Library Mode to view podcasts, but in order to keep everything as simple (and appealing) to my wife as possible I'd rather remain in Library Mode so that on the rare occasion she wants to watch a DVD, she can do so without my help. Does anyone know a way to display podcasts in library mode? If this isn't possible is there a more elegant solution/work-around to going back and forth between library mode? Many thanks.

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• Tools to test multicast routing

  - by Zoredache

  I am looking for a good simple tool that runs on a standard OS (Windows or Linux) that I can used to test that multicast is being passed properly by a router. I have been asked by a client to enable multicast routing on a Linux box acting as their router since their phone system requires multicast to for a few features. Since I am not physically near the client I don't really have the ability to experiment with the various methods for setting up multicast routing on Linux. I can setup a router at my desk that is identical to what is deployed on their network, but I don't know of any good simple tools that I can use to generate or listen for multicast traffic. The one mulicast tool I have found is mcast.exe tool which is part of the Windows 2000/2003 resource kit. From what I have read online it seems that mcast.exe does not work across a router, and only works on the local network, so that doesn't seem to be useful for me to test multicast routing. So what do tool(s) do you use to test that multicast routing is properly setup?

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• Recommend- XORP vs GNU Zebra vs Quagga

  - by Vivek Sharma

  Any recommendations which of XORP, GNU Zebra and Quagga routing software is simple enough to hack and learn?

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• Recursive reset file permissions on Windows

  - by Peter Horvath

  There is a big, complex directory structure on a relative big NTFS partition. Somebody managed to put very bad security privileges onto it - there are directories with randomly given/denied permissions, etc. I already run into permission bugs multiple times, and I found insecure permission settings multiple times (for example, write permissions for "Everyone", or false owners). I don't have time to check everything by hand (it is big). But luckily, my wishes are very simple. The most common: read/write/execute on anything for me, and maybe read for Everyone. Is it possible to somehow remove all security data from a directory and giving my (simple) wishes to overwrite everything there? On Unix, I used a chown -R ..., chmod -R ... command sequence. What is its equivalent on Windows?

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• zfs rename/move root filesystem into child

  - by Anton

  Similar question exists but the solution (using mv) is awful because in this case it works as "copy, then remove" rather than pure "move". So, I created a pool: zpool create tank /dev/loop0 and rsynced my data from another storage in there directly so that my data is now in /tank. zfs list NAME USED AVAIL REFER MOUNTPOINT tank 591G 2.10T 591G /tank Now I've realized that I need my data to be in a child filesystem, not in /tank filesystem directly. So how do I move or rename the existing root filesystem so that it becomes a child within the pool? Simple rename won't work: zfs rename tank tank/mydata cannot rename to 'tank/mydata': datasets must be within same pool (Btw, why does it complain the datasets are not within same pool when if fact I only have one pool?) I know there are solutions that involve copying all the data (mv, or sending the whole dataset to another device and back), but shouldn't there be a simple elegant way? Just noting that I do not care of snapshots at this stage (there are none yet to care of).

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• alternatives to SGE

  - by bmargulies

  Once upon at time there was the free SGE from Sun. tricky to install and configure, but functional and free. Now we've got: open source packages on Ubuntu that don't quite work out of the box (details on request). the actual source behind them, with a build process that depends on the c-shell and other obsolescences, available from two competing locations. a commercial packaging from Oracle a commercial package from Univa What I am really wishing for is something with the basic capabilities of this that is simple to install and maintain. Heck, I'd take a front-end to hadoop that just queues and distributes simple shell-script-defined jobs.

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