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• ArchBeat Link-o-Rama for August 2, 2013

  - by OTN ArchBeat

  Podcast: Data Warehousing and Oracle Data Integrator - Part 2 Part to of the discussion about Data Warehousing and Oracle Data Integrator focuses on a discussion of how data warehousing is changing and the forces driving that change. Panelists for this discussion are Uli Bethke, Oracle ACE Director Cameron Lackpour, Oracle ACE Director (and guest producer) Gurcan Orhan, and Michael Rainey. Case Management In-Depth: Cases & Case Activities Part 1 – Acivity Scope | Mark Foster FMW solution architect Mark Foster kicks off a new series with a look at the decisions made on the scope of BPM process case activities. Video: Quick Intro to WebLogic Maven Plugin 12.1.2 | Mark Nelson This YouTube video by FMW solution architect Mark Nelson offers a quick introduction to the basics of installing and using the new Oracle WebLogic 12.1.2 Maven Plugin. Running the Managed Coherence Servers Example in WebLogic Server 12c | Tim Middleton FMW solution architect Tim Middleton shares the technical details on the new Managed Coherence Servers feature and outlines how you can run the sample application available with a WebLogic Server 12.1.2 install. What’s wrong with how we develop and deliver SOA Applications today? | Mark Nelson "When we arrive at the go-live day, we have a lot of fear and uncertainty," says solution architect Mark Nelson of the typical SOA practice. "We have no idea if the system is going to work in production. We have never tested it under a production-like load, and we have not really tested it for performance, longevity, etc." OTN Latin America Tour 2013 | Kai Yu Oracle ACE Director Kai Yu shares the session abstracts from his participation in the 2013 Oracle Technology Network Latin America conference tour, which made its way through OUG conferences in Ecuador, Guatemala, Panama, and Costa Rica. Webcast: Latest Security Innovations in Oracle Database 12c Oracle Database 12c includes more new security capabilities than any other release in Oracle history! In this webcast Roxana Bradescu (Director, Oracle Database Security Product Management) will discuss these capabilities and answer your questions. (Registration required.) Thought for the Day "The main goal in life career-wise should always be to try to get paid to simply be yourself." — Kevin Smith (Born August 2, 1970) Source: brainyquote.com

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• Single computer on network cannot connect to internet.

  - by user34630

  Hi All, I hope you can help me out! :) I have 3 computers and one device (Xbox) on my home network; 2 running XP and one on Vista. The computer that can't connect to the internet (XP) is old and failing, and shows no warning before it completely runs out of battery. Thus today, I started it up forgetting that I had unplugged it the night before, and it just ran out of battery entirely whilst I was using it and died. I think that before this I had been browsing the internet, but I can't remember for certain. (i.e. The problem I am having may or may not have been caused by this 'hard' power off). Anyway, now when I start the computer up it takes 5-10 minutes after logging on to display the start bar and icons. Also, I cannot browse the internet. The computer seems to connect to the network OK (I have tried both wired and wireless), but I can't visit sites and can't ping web addresses. Pinging the router fails, as does pinging another of my computers on the network. I have never encountered something like this before, and whilst I am no noob I am also not a sysadmin, haha. :( Any help is greatly appreciated, thank you for your time. P.S. I have tried a system restore (newbie move?).

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• My Latest Books &ndash; Professional C# 2010 and Professional ASP.NET 4

  - by Bill Evjen

  My two latest books are out! Professional ASP.NET 4 in C# and VB Professional C# 4 and .NET 4 From the back covers: Take your web development to the next level using ASP.NET 4 ASP.NET is about making you as productive as possible when building fast and secure web applications. Each release of ASP.NET gets better and removes a lot of the tedious code that you previously needed to put in place, making common ASP.NET tasks easier. With this book, an unparalleled team of authors walks you through the full breadth of ASP.NET and the new and exciting capabilities of ASP.NET 4. The authors also show you how to maximize the abundance of features that ASP.NET offers to make your development process smoother and more efficient. Professional ASP.NET 4: Demonstrates ASP.NET built-in systems such as the membership and role management systems Covers everything you need to know about working with and manipulating data Discusses the plethora of server controls that are at your disposal Explores new ways to build ASP.NET, such as working with ASP.NET MVC and ASP.NET AJAX Examines the full life cycle of ASP.NET, including debugging and error handling, HTTP modules, the provider model, and more Features both printed and downloadable C# and VB code examples Start using the new features of C# 4 and .NET 4 right away The new C# 4 language version is indispensable for writing code in Visual Studio 2010. This essential guide emphasizes that C# is the language of choice for your .NET 4 applications. The unparalleled author team of experts begins with a refresher of C# basics and quickly moves on to provide detailed coverage of all the recently added language and Framework features so that you can start writing Windows applications and ASP.NET web applications immediately. Reviews the .NET architecture, objects, generics, inheritance, arrays, operators, casts, delegates, events, Lambda expressions, and more Details integration with dynamic objects in C#, named and optional parameters, COM-specific interop features, and type-safe variance Provides coverage of new features of .NET 4, Workflow Foundation 4, ADO.NET Data Services, MEF, the Parallel Task Library, and PLINQ Has deep coverage of great technologies including LINQ, WCF, WPF, flow and fixed documents, and Silverlight Reviews ASP.NET programming and goes into new features such as ASP.NET MVC and ASP.NET Dynamic Data Discusses communication with WCF, MSMQ, peer-to-peer, and syndication

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• Google Chrome Updates; Faster, Cleaner Menus, Encrypted Password Syncing, and More

  - by ETC

  Google Chrome has rolled out a new update that includes a host of improves such as easier to navigate menus, encrypted password syncing, over all speed improvements, Flash sandboxing, and more. Google Chome’s new update has a host of subtle but powerful improvements. The browser is faster, the security is improved thanks the addition of encrypted password syncing and sandboxing of the integrated flash player, and the settings menu has been restructured and cleaned up for easy navigation. Check out the video above to take a peek at some of the changes or hit up the link below to read more. Speedier, Simpler, and Safer: Chrome’s Basics Get Even Better [The Official Google Blog] Latest Features How-To Geek ETC How to Get Amazing Color from Photos in Photoshop, GIMP, and Paint.NET Learn To Adjust Contrast Like a Pro in Photoshop, GIMP, and Paint.NET Have You Ever Wondered How Your Operating System Got Its Name? Should You Delete Windows 7 Service Pack Backup Files to Save Space? What Can Super Mario Teach Us About Graphics Technology? Windows 7 Service Pack 1 is Released: But Should You Install It? Save Files Directly from Your Browser to the Cloud in Chrome and Iron The Steve Jobs Chronicles – Charlie and the Apple Factory [Video] Google Chrome Updates; Faster, Cleaner Menus, Encrypted Password Syncing, and More Glowing Chess Set Combines LEDs, Chess, and DIY Electronics Fun Peaceful Alpine River on a Sunny Day [Wallpaper] Fast Society Creates Mini and Mobile Temporary Social Networks

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• How do search engines handle hyphenated words?

  - by NinjaKC

  I am not sure my title fully explains what I mean. I thought this might be an interesting question. If I had a set of keywords, broken with a dash or 2, will search engines consider the dashed split keyword as maybe a full keyword? Say I have a site that sort of breaks words down, like the dictionary sites do. So a keyword for that page, might end up in the page, and / or the URL, as broken by dashes. Key-word = keyword Co-op-er-at-ive = cooperative Pho-to-gra-phy = Photography www.example.com/key-word/ www.example.com/co-op-er-at-ive/ www.example.com/pho-to-gra-phy/ I know search engines will consider a dash (at least Google) as a space, and understand it as multiple words. But in the English language, a dash can also break a word down (at least I think it can, can't it?), so will search engines also take this into consideration? I did a 'little' research, I Googled some words and placed random dashes, and it returned the words I searched for, but this could be considered a typo from the user on Google's search end, so really I am wondering if I can purposely put a dash in a keyword, and have the search engine spiders still catch that keyword as the real word without dashes? I've done a little Googling and looking here on Stackoverflow, but everything comes down to dashes for multiple words, not really the specific thing I'm trying to figure out. Hopefully that makes sense, I am not an expert in SEO, yet, but get the basics and have been playing, and this is just really a random question to satisfy my knowledge of playing :P

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• How-To Geek Gets the Microsoft MVP Award, Thanks to You

  - by The Geek

  The How-To Geek has won a Microsoft MVP award for the second year in a row, and it’s all thanks to you, our great readers that keep the site going. Join us for some mutual back-patting and some terrible photography of all the award stuff. Of course, if you’re familiar with the MVP award you’ll probably know that it’s actually for a single person, but in my opinion the award belongs to the entire How-To Geek community, without which this site would be nothing. Latest Features How-To Geek ETC HTG Projects: How to Create Your Own Custom Papercraft Toy How to Combine Rescue Disks to Create the Ultimate Windows Repair Disk What is Camera Raw, and Why Would a Professional Prefer it to JPG? The How-To Geek Guide to Audio Editing: The Basics How To Boot 10 Different Live CDs From 1 USB Flash Drive The 20 Best How-To Geek Linux Articles of 2010 Five Sleek Audi R8 Car Themes for Chrome and Iron MS Notepad Replacement Metapad Returns with a New Beta Version Spybot Search and Destroy Now Available as a Portable App (PortableApps.com) ShapeShifter: What Are Dreams? [Video] This Computer Runs on Geek Power Wallpaper Bones, Clocks, and Counters; A Look at the First 35,000 Years of Computing

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• Which is the best free ide/plugin for struts2?

  - by shahensha

  Hello friends, I have just learnt struts 2 and now I have taken up a full fledged project in it. I learnt the basics of struts 2 in Netbeans with it's struts2 plugin. But I am not at all happy with it, as it is very basic and I end up doing most of the work. It is obviously better than plain-vanilla text editor, but still not at all near to what netbeans provides for springs and hibernate. I know because netbeans provides native support for springs and hibernate, it is meant to be better. I don't mind changing my IDE if i get better support for struts2! So my questions are Please list all the free IDEs where native support for struts2 is provided. And if possible please compare them. Please list all the plugins that are available for eclipse for struts2 development. I have heard there are better plugins in eclipse. Also, if there are better plugins in any other IDE (other than netbeans or eclipse of course), please list them giving links. Please give me some tips which I'll need before starting a full blown project in Struts2. I haven't worked on any project on Struts2. I have just finished reading Struts 2 in Action of Manning publications. Thanking you in advance! regards shahensha

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• Debian, Apache2, CGI: paths issue

  - by Bubnoff

  I have a perl form email script on the servers cgi-bin directory ( /usr/lib/cgi-bin ). /etc/apache2/sites-enabled/000-default ScriptAlias /cgi-bin/ /usr/lib/cgi-bin/ <Directory "/usr/lib/cgi-bin"> AllowOverride None Options +ExecCGI -MultiViews +SymLinksIfOwnerMatch AddHandler cgi-script cgi pl Order allow,deny Allow from all </Directory> The issue is with paths. html calls script here: <form name="Request" method="post" action="http://server-test.local/cgi-bin/formprocessorpro.pl" onsubmit="return checkWholeForm49874(this)"> The directory with the templates and configs is passed here: <input type="hidden" name="base_path" value="../contact" /> The path to this form is: http://server-test.local/formstest/contact.htm No matter what variation I try for the base_path I get an error from the formprocessor script that it can't find the directory: An error occurred when opening the Form Configuration File (../contact/form.cfg): No such file or directory. I need to move this script from an old server, configured by a previous sysadmin, to a new server. Since cgi-bin is automatically linked to /usr/lib/cgi-bin and linked such that the script resides: http://server-test.local/cgi-bin/formprocessorpro.pl I would imagine that, given that the templates are in the webroot in a directory called contact, the correct path would be: ../contact Any ideas? It's been awhile since I've messed with CGI. Bubnoff

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• I've been hired on as a entry-level game developer at a company and have little/no experience in API programming, what should I expect?

  - by Mr. Geneth

  So, I've been hired on as an entry level game developer with little/no experience working with any API other than Win32. This will be an overall learning experience for me as a person and I have gone over this multiple times with the boss and he has no problem with my inexperience. He says that if I'm not worth it now, I will be later. This gives me confidence, but I still feel that I should know a lot more before tackling this position. I would be stupid to pass it up. This is one of my favorite places to come for advice and help and have tried to just accept this, but it just keeps bothering that I can't go in knowing how to at least do the basics. I want to give the company its money's worth. Ya know? My questions are: What should I expect from the other programmers in this project (In terms of patience with me and working together, and being taught)? Is this normal? Any other advice on this sort of thing would be wonderful. I just want to feel comfortable with it.

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• Hyper-V Virtual Machine won't respond over network

  - by Brad Gignac

  Recently, one of our Hyper-V virtual machines has periodically stopped responding over the network. It seems to be happening every few days, and it occasionally happens up to several times a day. I am by no means a sysadmin, so any direction you guys could provide would be very welcome. I've included everything I know to include below. If you need any additional information, I'll be glad to include it. I can connect through the Hyper-V console. I can't connect to network shares, IIS web apps, using RDP, or using ping. Memory usage seems to be normal (3 of 4 GB) Processor usage seems low. We don't know the exact time the server goes down, but the following error appears consistently around the time it goes down: Error 5719, NETLOGON This computer was not able to set up as secure session with a domain controller in domain *** due to the following: There are currently no logon servers available to service the logon request. This may lead to authentication problems. Make sure that this computer is connected to the network. If this problem persists, please contact your domain administrator.

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• How to manage processes-to-CPU cores affinities ?

  - by Philippe

  I use a distributed user-space filesystem (GlusterFS) and I would like to be sure GlusterFS processes will always have the computing power they need. Each execution node of my grid have 2 CPU, with 4 cores per CPU and 2 threads per core (16 "processors" are seen by Linux). My goal is to guarantee that GlusterFS processes have enough processing power to be reliable, responsive and fast. (There is no marketing here, just the dreams of a sysadmin ;-) I consider two main points : GlusterFS processes I/O for data access (on local disks, or remote disks) I thought about binding the Linux Kernel and GlusterFS instances on a specific "processor". I would like to be sure that : No grid job will impact the kernel and the GlusterFS instances Researchers jobs won't be affected by system processes (I'd like to reserve a pool of cores to job execution and be sure that no system process will use these CPUs) But what about I/O ? As we handle a huge amount of data (several terabytes), we'll have a lot of interuptions. How can I distribute these operations on my processors ? What are the "best practices" ? Thanks for your comments!

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• Apache2 shared server: default webpage

  - by Eamorr

  Greetings, I have an apache2 server with 4 domain names point to my server's single IP address. When I type in www.site1.com it serves pages from /home/eamorr/site1/index.php Same for www.site2.com, www.site3.com and www.site4.com However, when I type in to the address bar of a browser without the www, it always redirects to site1.com! i.e. site1.com - site1.com site2.com - site1.com site3.com - site1.com site4.com - site1.com How do I configure apache to do the following: site1.com - site1.com site2.com - site2.com site3.com - site3.com site4.com - site4.com Here is my default config: ServerAdmin [email protected] ServerName www.site1.com DocumentRoot /home/eamorr/sites/site1.com/www DirectoryIndex index.php index.html <Directory /home/eamorr/sites/site1.com/www> Options Indexes FollowSymLinks MultiViews Options -Indexes AllowOverride all Order allow,deny allow from all php_value session.cookie_domain ".site1.com" #Added by EOH for redirection RewriteEngine on RewriteRule ^([^/.]+)/?$ driver.php?uname=$1 [L] </Directory> ErrorLog /var/log/apache2/error.log # Possible values include: debug, info, notice, warn, error, crit, # alert, emerg. LogLevel warn CustomLog /var/log/apache2/access.log combined I'd like to look at the domain name and then redirect to www.sitex.com. Is there an Apache rule to do this? I hope someone can help. My SysAdmin/apache2 config skill aren't the best. Many thanks in advance,

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• Group policy not applying to security group

  - by ihavenoideawhatimdoing

  Preface: I have enough privileges to create GPOs in my OU, and have made a few of them for some simple tasks (like deploying a printer to certain users). Not actually a sysadmin...I'm a developer who is winging it. I wanted to create a GPO that would set a mapped folder for a certain security group (which I recently created and that contains only myself). Did the following: Created the GPO in MyOU - Users Removed the default Authenticted Users under Security Filtering Add the security group with my account to Security Filtering Set up the mapping via the User Configuration option Changed GPO Status to "Computer configuration settings disabled" Left WMI filtering to Closed the GPO at this point... Logged in as the target user; ran gpupdate /force Logged out, logged in, ran gpresult /r, no mention of my GPO Rebooted Logged in, re-ran gpupdate /force Logged out, logged in, ran gpresult /r, still no mention of my GPO If I log in with another completely different user, their RSOP information shows that the new GPO is being ignored due to a security restriction, so it appears to be "working" for other users. I just can't get it to actually show up in RSOP for the user it should be working. Is there anything else I can do short of rebooting endlessly and crossing my fingers?

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• Setting up MongoDB in High Performance Computing LSF linux cluster

  - by Dnaiel

  I am trying to run mongo in a LSF cluster computing environment where I have no admin control. Our sysadmin installed mongodb, but it is not running. Any ideas on what should I ask the server admin to do for it to run? Or if I could run it locally? [node1382]allelix> mongod --dbpath /users/dnaiel/ma/mongodb/ Tue Oct 2 21:33:48 [initandlisten] MongoDB starting : pid=22436 port=27017 dbpath=/seq/epigenome01/allelix/ma/mongodb/ 64-bit host=node1382 Tue Oct 2 21:33:48 [initandlisten] Tue Oct 2 21:33:48 [initandlisten] ** WARNING: You are running on a NUMA machine. Tue Oct 2 21:33:48 [initandlisten] ** We suggest launching mongod like this to avoid performance problems: Tue Oct 2 21:33:48 [initandlisten] ** numactl --interleave=all mongod [other options] Tue Oct 2 21:33:48 [initandlisten] Tue Oct 2 21:33:48 [initandlisten] db version v2.2.0, pdfile version 4.5 Tue Oct 2 21:33:48 [initandlisten] git version: f5e83eae9cfbec7fb7a071321928f00d1b0c5207 Tue Oct 2 21:33:48 [initandlisten] build info: Linux ip-10-2-29-40 2.6.21.7-2.ec2.v1.2.fc8xen #1 SMP Fri Nov 20 17:48:28 EST 2009 x86_64 BOOST_LIB_VERSION=1_49 Tue Oct 2 21:33:48 [initandlisten] options: { dbpath: "/users/dnaiel/ma/mongodb/" } Tue Oct 2 21:33:48 [initandlisten] journal dir=users/dnaiel/ma/mongodb/journal Tue Oct 2 21:33:48 [initandlisten] recover begin Tue Oct 2 21:33:48 [initandlisten] info no lsn file in journal/ directory Tue Oct 2 21:33:48 [initandlisten] recover lsn: 0 Tue Oct 2 21:33:48 [initandlisten] recover /seq/epigenome01/allelix/ma/mongodb/journal/j._0 Tue Oct 2 21:33:48 [initandlisten] recover cleaning up Tue Oct 2 21:33:48 [initandlisten] removeJournalFiles Tue Oct 2 21:33:48 [initandlisten] recover done Tue Oct 2 21:33:48 [websvr] admin web console waiting for connections on port 28017 Tue Oct 2 21:33:48 [initandlisten] waiting for connections on port 27017 It basically waits forever and cannot start mongodb. These servers are not webservers but they do have network access, it's a cloud computing LSF environment system. Any advice would be welcome, thanks in advance.

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• Suspected brute force attack

  - by HarveySaayman

  Recently I acquired a dedicated server from a local ISP to play around with. As the tags suggest, its a windows server 2008 R2 machine. I've only had it for a few days, and no real traffic is going to it yet. I haven't even deployed a "real" website to it yet. Just a silly page so that I could check IIS, my host headers, DNS records, etc are all configured correctly. While playing around, I noticed a ton of Audit Failure entries in the event viewers security logs. It seems something is trying to access the administrator account, and failing. It smells like a brute force attack to me. My ISP gave me the account details of the administrator account and I used those to RDP into the box, which I've heard is not the securest of situations. I created myself another account and added myself to the administrator group, so im using that account to gain acceess to the machine now. In response to all of this i used http://strongpasswordgenerator.com/ to generate me some 20 character length strong passwords and changed all of my account passwords, even the SQL sa user. I also enabled the auto ban feature of FileZillaServer (my FTP server) My questions: 1) how can i detect this kind of thing better? 2) how can i protect my server from unauthorized access better? PS: I'm a software dev, not a sysadmin so please mind my server security idiot-ness-ness

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• How broad should a computer science/engineering student go?

  - by AskQuestions

  I have less than 2 years of college left and I still don't know what to focus on. But this is not about me, this is about being a future developer. I realize that questions like "Which language should I learn next?" are not really popular, but I think my question is broader than that. I often see people write things like "You have to learn many different things. Being a developer is not about learning one programming language / technology and then doing that for the rest of your life". Well, sure, but it's impossible to really learn everything thoroughly. Does that mean that one should just learn the basics of everything and then learn some things more thoroughly AFTER getting a particular job? I mean, the best way to learn programming is by actually programming stuff... But projects take time. Does an average developer really switch between (for example) being a web developer, doing artificial intelligence and machine learning related stuff and programming close to the hardware? I mean, I know a lot of different things, but I don't feel proficient in any of those things. If I want to find a job as a web developer (that's just an example) after I finish college, shouldn't I do some web related project (maybe using something I still don't know) rather than try to learn functional programming? So, the question is: How broad should a computer science student's field of focus be? One programming language is surely far too narrow, but what is too broad?

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• Opportunity Nokia's

  - by Andrew Clarke

  Nokia’s alliance with Microsoft is likely to be good news for anyone using Microsoft technologies, and particularly for .NET developers. Before the announcement, the future wasn’t looking so bright for the ‘mobile’ version of Windows, Windows Phone. Microsoft currently has only 3.1% of the Smartphone market, even though it has been involved in it for longer than its main rivals. Windows Phone has now got the basics right, but that is hardly sufficient by itself to change its predicament significantly. With Nokia's help, it is possible. Despite the promise of multi-tasking for third party apps, integration with Microsoft platforms such as Xbox and Office, direct integration of Twitter support, and the introduction of IE 9 “later this year”, there have been frustratingly few signs of urgency on Microsoft’s part in improving the Windows Phone  product. Until this happens, there seems little prospect of reward for third-party developers brave enough to support the platform with applications. This is puzzling when one sees how well SQL Server and Microsoft’s other server technologies have thrived in recent years, under good leadership from a management that understands the technology. The same just hasn’t been true for some of the consumer products. In consequence, iPads and Android tablets have already exposed diehard Windows users, for the first time, to an alternative GUI for consumer Tablet PCs, and the comparisons aren’t always in Windows’ favour. Nokia’s problem is obvious: Android’s meteoric rise. Android now has 33% of the worldwide market for smartphones, while the market share of Nokia’s Symbian has dropped from 44% to 31%. As details of the agreement emerge, it would seem that Nokia will bring a great deal of expertise, such as imaging and Nokia Maps, to Windows Phone that should make it more competitive. It is wrong to assume that Nokia’s decline will continue: the shock of Android’s sudden rise could be enough to sting them back to their previous form, and they have Microsoft’s huge resources and marketing clout to help them. For the sake of the whole Windows stack, I really hope the alliance succeeds.

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• Content Flood and Frustration? ==> Content Salvation via WebCenter

  - by Michael Snow

  If you are still stuck on Documentum and somehow have missed hearing about our Move-Off Documentum program. Here’s a refresher on the basics to help save you from your ongoing frustration. Check out Capitalizing on Content How much content have you pushed around over email, through collaboration, and via social channels this week? Have you been engaged with a process that has been smooth, problem-free, and leaves you with a lasting impression of a great user experience? How are you managing your online presence to ensure that your customers, partners, employees and potential future customers are experiencing a consistently engaging web experience? You really can’t do this without a solid Web Experience Management platform. Learn more from the CITO Research White Paper: Creating a Successful and Meaningful Customer Experience on the Web If you'd like to catch up on what Oracle WebCenter has been doing lately - check out the latest recording now available OnDemand: March 2012 Quarterly Customer Update Webcast. Amazing how much can be done in a day on the internet. It’s even more impressive to see this presented in an infographic like the one below by mbaonline.com. How much longer can you manage the ever increasing volumes of content without some technology assistance?  Created by: MBAOnline.com

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• Computer science curriculum for non-CS major?

  - by Daniel

  Hi all, I would like to have some ideas for building up my foundation CS skills. I have started programming computers 10 years ago and have made a pretty good career out of it. However, I cannot stop thinking that the path that brought me here was very particular, and if something goes wrong (e.g. I get laid off) it would be harder to find a job here in the US on the same salary level, OR in a top company. The reason I say that is that I am a self-learner; my degree is not in Computer Science so although I master C/C++/Java, I do not have the formal CS and mathematical background that many other software developers (esp. here in the US) have. When I look at job interview questions from Apple, Google, Amazon, I have the impression that I'd flunk those technical interviews at some point. Don't get me wrong, I know my algorithms and data structures, but when things dive too deeply into the CS realm I am in trouble. What can I do to close the gap? I was thinking about a MSc in CS, but will I even UNDERSTAND what's going on there if I'm not a CS undergrad? Should I go back to basics and get a BSc in CS instead? I always tend to go into self-study mode when I want to learn new stuff, but I have the impression that I will need more formal education in CS if I want to have a shot at working at those kinds of companies. Thank you!

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• Modernising settings, packages

  - by Sam Brightman

  The update manager (possibly combined with the janitor) does a reasonable job of bringing packages up to date with a new release, removing ones that are replaced by different projects etc. However, I'm left with the lingering feeling that quite a few settings are lingering from old releases. For example, some packages may be left around that I installed myself whereas now the functionality is provided by default. Another example is that my user doesn't get the new theme, and the panel bar is a mess. I can compare against an inactive user on the same system: everything seems tidier. There are also things like the explosion of System Preferences, user groups (inactive user, more recently created, is in groups that the older, active user isn't). In other areas (e.g. default font) I do seem to get given the new defaults. Another example is Spotlight-equivalent search. I remember Beagle and Tracker, I remember removing tracker when it used all system RAM and swap for 2 entire release cycles, but I don't know what I'm "supposed" to be using now. Is there even a default indexing-search installed and exposed? aptitude install ubuntu-desktop doesn't do anything, so the basics are in place package-wise. Is there any way to update my settings to the modern "Ubuntu way" without reinstalling from scratch? Can I do so selectively i.e. show the differences? Most of the time package management on Linux is an absolute joy compared to the alternatives, but if the desktop gets messed up after only a release or two, we're back to reinstalling just like Windows.

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• sp_help

  - by David-Betteridge

  One of the nice things about SQL Server Management Studio (SSMS) is that you can highlight a table name in a script and press Alt + F1 to perform sp_help on it. Unfortunately I've never been able to use that feature as the majority of the tables in our product belong to a schema other than dbo.    On a long train journey back to York I wondered if I could solve this problem by writing my own replacement for sp_help (which I’ve called sp_help_table_schemas).  My version works by first checking the system tables to find out which schemas the table belongs to SELECT s.Name   --Find the schema FROM sys.schemas s  JOIN sys.tables t on t.schema_id = s.schema_id  WHERE t.name = 'Orders'It then dynamically calls the standard sp_help method but this time supplying the table owner as well.SET @cmd = 'EXEC sp_help ''' + QUOTENAME(@SchemaName) + '.' + QUOTENAME(@ObjectName) + ''' ;' ;           EXEC ( @cmd )Once I had proved the basics worked I wrapped it up into a stored procedure and deployed it to the master database on my laptop.  It was then just a question of going into Tools à Options within SSMS and defining the keyboard short cutA couple of notes You can’t amend the existing Alt+F1 entry to I went with Ctrl+F1.  You need to open new query window for the change to be picked upSo I can now highlight a table name and press Ctrl+F1 The completed script is attached.   Thanks go to Martin Bell who reviewed my stored procedure and give some valuable advice.

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• ports only available from the outside network

  - by ChrisJ

  This is a counter-intuitive problem for me. I have a new Win 2003 server on a static IP address w.x.y.z. Tomcat 7, PostgreSQL 9.1, and Subversion are installed. All of it appears to be working fine from the server itself. We can also access the Tomcat manager, web applications, and run "svn ls svn://w.x.y.z/" from outside our network. However, when I try from another machine in the office, phpPgAdmin and svn cannot establish connections with the server. http://w.x.y.z:5432/phppgadmin cannot connect. The svn command from above returns: svn: E730061: Unable to connect to a repository at URL 'svn://w.x.y.z/' svn: E730061: Can't connect to host 'w.x.y.z': No connection could be made because the target machine actively refused it. Tomcat manager and the other web apps we have deployed work fine. Netstat -a from the server shows this: Proto Local Address Foreign Address State TCP SERVERNAME:3690 SERVERNAME:0 LISTENING TCP SERVERNAME:5432 SERVERNAME:0 LISTENING Windows Firewall was off, but just in case I also tried to enable it and open ports 3690 (svn) and 5432 (postgres). No change. I don't have access to the router/switch because it just doesn't work that way in Port-au-Prince and our sysadmin is on R&R. Is there anything that might be causing the problem from the server side?

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• Cannot boot computer, help please :(

  - by Austin

  Ok so here is more descriptions, I REALLY NEED HELP! I installed Ubuntu on a disk (unsure of v. I can't check.. Computer is broke :/ ) I then burned the disk I restarted computer pressed f12 blah blah it came up, I pressed enter for English, I plugged an Ethernet card in for better connection, and then started the installation.... I did the basics, and I entered a host name, and a user name and pass all that, when it came to partition page, I presse enter for no and then it went back to the installation page, I pressed install again, and it brought me back, so I selected yes , it loaded an it asked what software to instal I selected sh ( it was first option and I didn't know which to do ) so after everything finished loading, my disk was ejected the process finish, I run my computer and it opens up in log in page on cmd script I didn't know it, so I ran disk again makin a user and pass to remember.... Going back to login thing I logged in, and all it did was say my username... I didn't know what to do from there, I looked online found nothing but grub stuff, so I went to "Advanced Ubuntu options" and then "(Recovery Mode) and went to update grub... In middle o loading it asked to continue (Y/n) I typed Y and it finished, it went back to the options located in (Recovery Mode) and I closed it, and it loaded... And then showed up in another script screen, saying a paragraph on top, and on left side ( where login: would be located etc. ) it says "Grub" and I don't know what to type, if I turn off computer and turn back on it just goes straight to that again... PLEASE HELP:(

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• There's A Virtual Developer Day in Your Future

  - by OTN ArchBeat

  What are Virtual Developer Days? You really should know this by now. OTN Virtual Developer Days are online events created specifically for developers and architects, with a focus on no-fluff technical presentations, hands-on labs, and expert Q&A to sharpen your technical skills and bring you up to speed on the latest information on Oracle products and practical best practices for their use. The best part about OTN Virtual Developer Days is that you don't have to pack a suitcase or stand in line at an airport waiting for someone pat you down. Instead, you stay where you are, flip open your laptop, and prepare your brain for a massive skills injection. In the next few weeks you'll have two such chances to ramp up your skills. On Tuesday November 5, 2013 Harnessing the Power of Oracle WebLogic and Oracle Coherence will guide you through tooling updates and best practices for developing applications with WebLogic and Coherence as target platforms. This two-track event covers app design and development (Track 1) and building, deploying, and managing applications (Track 2). Each track includes three presentations plus a hands-on lab. [9am-1pm PT / 12pm-4pm ET / 1pm-5pm BRT] Register now This event will also be available in EMEA on December 3, 2013 {9am-1pm GMT / 1pm-5pm GST / 2:30pm-6:30 PM IST] On Tuesday November 19, 2103 Oracle ADF Development: Web, Mobile, and Beyond offers four tracks covering everything from the basics to advance skills for for application development using Oracle ADF and Oracle ADF Mobile. There are three sessions in each track, followed by hands-on labs in which try out what you've learned. [9am-1pm PT / 12pm-4pm ET/ 1pm-5pm BRT] Register now This event will also be available in APAC on Thursday November 21, 2013 [10am-1:30pm IST (India) / 12:30pm-4pm SGT (Singapore) / 3:30pm-7pm AESDT] and in EMEA on Tuesday November 26, 2013 [9am-1pm GMT / 1pm-5pm GST/ 2:30pm-6:30pm IST] Registration for both events is absolutely free. So what are you waiting for?

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• Any non-custom way to manage iptables with fail2ban and libvirt+kvm?

  - by Peter Hansen

  I have an Ubuntu 9.04 server running libvirt/kvm and fail2ban (for SSH attacks). Both libvirt and fail2ban integrate with iptables in different ways. Libvirt uses (I think) some XML config and during startup (?) configures forwarding to the VM subnet. Fail2ban installs a custom chain (probably at init) and periodically modifies it to ban/unban probable attackers. I also need to install my own rules to forward various ports to servers running in VMs and on other machines, and set up rudimentary security (e.g. drop all INPUT traffic except the few ports I want open), and of course I'd like the ability to add/remove rules safely without restarting. It seems to me iptables is a powerful tool that's sorely lacking some sort of standardized way of juggling all this stuff. Every project, and every sysadmin, seems to do it differently! (And I think there's lots of "cargo cult" admin going on here, with people cloning crude approaches like "use iptables-save like so".) Short of figuring out the gory details of exactly how both of these (and potentially other) tools manipulate the netfilter tables, and developing my own scripts or just manually executing iptables commands, is there any way to safely work with iptables while not breaking the functionality of these other tools? Any nascent standards or projects defined to bring sanity to this area? Even a helpful web page I missed that might cover at least these two packages together?

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