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  • Apache, suexec, PHP, suPHP

    - by Chris_K
    While I'm quite comfortable as a Linux user, my Linux Admin-fu is a bit weak. Thus, I'm here looking for guidance with a CentOS server I'm about to build. I need to setup an Apache2 web server for a few of our clients. I want each client's web content to be under their home directory (USERDIR in apache.conf, right?) for the static HTML sites. I want Apache to run as the client (suexec?). Some of their stuff will be PHP apps and I'm under the impression I'll want to look at suphp as well then. So basically I want to look like a small version of a shared web hosting company. Considering how common those are I thought I'd easily find a nice current How-To guide on setting this all up but so far I've had very little luck. I suspect my search words are off. So the questions (feel free to answer any or all): Anyone have some solid links to current/modern guides that would help me set this all up? No, the apache documentation site is not a guide ;-) Since I have a mix of static sites and PHP apps do I want/need both suexec and suphp installed? If so, does that introduce any challenges I should be aware of? Should I be looking at other options instead of suexec and suphp? I plan to give the end users SSH, SFTP or SCP access to their stuff (if that affects anything). Thanks in advance for your help.

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  • Meet our Interns: Adam and Hanadi

    - by Maria Sandu
    Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 This week, we’d like to introduce you to two of our ECEMEA Interns, Adam and Hanadi. They’re based in different countries and are part of different teams; however they both have the same enthusiasm in being an Intern at Oracle. “Hi! I’m Adam (Bachelor of Accounting Science & CIMA Diploma in Management Accounting), a member of the Oracle Applications Pre-sales team in Johannesburg, South Africa. Joining Oracle has been a truly inspiring experience thus far. My first week at Oracle has been one of insight and learning. I have had the opportunity to meet and interact with industry leading software solution professionals. Gaining insight into a mammoth multinational company has changed my perception on how things work and has truly opened my eyes to the world of business. Having the privilege of joining the Oracle Graduate Program has afforded me the chance to take advantage of countless training opportunities as well as the chance to learn about Information Technology in a practical manner which is vital to most businesses in today’s modern environment.” “Hi! I’m Hanadi, an Oracle 2013 Sales Intern from Saudi Arabia. I received my BSc in Information Technology from King Saud University and immediately after graduating I applied for the internship at Oracle. I thought it was an incredible opportunity and a great way to shift from college life to career life through learning and practicing in an environment with such high standards. At the beginning, I was a bit nervous in joining the serious business world, but once I joined, I found the program very organized and everyone was extremely helpful, which made it easier for us, as interns, to learn faster. If you are a self-motivated, committed person, who has initiative, accepts challenges, has good soft skills and some technical experience, I would definitely advice you to take a chance and apply for the program once you graduate. Best of luck!” Get the latest updates from the ECEMEA Sales and Presales Internship Programme 2013 by following #Oracleinterns on Twitter or visiting CampusatOracle Facebook Page! /* 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-top:0in; mso-para-margin-right:0in; mso-para-margin-bottom:10.0pt; mso-para-margin-left:0in; line-height:115%; mso-pagination:widow-orphan; font-family:"Calibri","sans-serif"; mso-ascii- mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi- mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi;}

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  • Why Is ModSecurity Unable to Access the Data Directory?

    - by tommytwoeyes
    Update I think we've solved this; the problem appears to have been a result of the /modsec_storage directory having an incorrect value for its SELinux context type. However, we're still not sure, because although after I changed the SELinux context type value, Apache was able to create files in that directory for the global and ip collections (global.dir/global.pag and ip.dir/ip.pag), the new files still have zero bytes. I'm new to ModSecurity and am not sure if the files are empty because something is wrong with the configuration or if ModSecurity has simply determined it doesn't need to store IP addresses persistently after each transaction ends. Anyone able to offer guidance here? I've recently installed ModSecurity (v2.5.12 / CRS v2.0.8) on our production server, and everything works great, except for these errors that it keeps writing to the Apache error log: Failed to access DBM file "/modsec_storage/global": Permission denied [hostname "www.internationalstudent.com"] [uri "/includes/soc_bookmarks/images/delicious.png"] [unique_id "LZ6jc38AAAEAAFO6408AAABO"] Failed to access DBM file "/modsec_storage/ip": Permission denied [hostname "www.internationalstudent.com"] [uri "/includes/soc_bookmarks/images/delicious.png"] [unique_id "LZ6jc38AAAEAAFO6408AAABO"] After following the instructions for file permission settings in the ModSecurity handbook by Ivan Ristic, with no success, I created a /modsec_storage directory, set the owner & group to apache, and set the permissions for the directory recursively to 777. However, ModSecurity is still reporting the same permission errors, so I am stumped. Can anyone tell me how to fix this?

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  • Task Manager Does Not Start Every Time

    - by diek
    I have had a problem that started some time ago, 6 months maybe. I should have noted the first instance but I didn't. I am using Windows 7 Pro, 32bit. Under normal circumstances I can open up the the Task Manager, via the task bar or cntrl alt del. When I get a program stuck, causing a freeze or non-responsive system I try to open the task manager. It will not work. I have had plenty of similar problems in the past and I had no trouble getting it open. I have searched the internet but the only results I can find are when the task manager will not start under any situation. I am running ESET NOD32 as the anti-virus. The latest example happened when I opened a new tab in Google and tried to copy an image. Google accounts for at least 50% of the examples. Ran System File Checker tool, sfc /scannow as recommended on another post. No errors returned. Any guidance would be appreciated.

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  • Best Practical RT, sorting email into queues automatically using procmail

    - by user52095
    I'm trying to get incoming e-mail to automatically go directly into whichever queue/ticket they are related to or create a new one if none exist and the right queue e-mail setup in the web interface is used. I will have too many queues to have two line items within mailgate per queue. A similar issue was discussed here (http://serverfault.com/questions/104779/procmail-pipe-to-program-otherwise-return-error-to-sender), but I thought it best to open a new case instead of tagging on what appeared to be an answer to that person's query. I'm able to send and receive e-mail (via PostFix) to the default rt user and this user successfully accepts all e-mail for the relative domain. I have no idea where the e-mail goes - it's successfully delivered, but it does not update existing tickets (with a Subject line match) and it does not create any new. Here's and example of my ./procmail.log: procmail: [23048] Mon Aug 23 14:26:01 2010 procmail: Assigning "MAILDOMAIN=rt.mydomain.com " procmail: Assigning "RT_MAILGATE=/opt/rt3/bin/rt-mailgate " procmail: Assigning "RT_URL=http://rt.mydomain.com/ " procmail: Assigning "LOGABSTRACT=all " procmail: Skipped " " procmail: Skipped " " procmail: Assigning "LASTFOLDER={ " procmail: Opening "{ " procmail: Acquiring kernel-lock procmail: Notified comsat: "rt@18337:./{ " From [email protected] Mon Aug 23 14:26:01 2010 Subject: RE: [RT.mydomain.com #1] Test Ticket Folder: { 1616 Does the notified comsat portion mean that it notified RT? The contents of my ./procmailrc: #Preliminaries SHELL=/bin/sh #Use the Bourne shell (check your path!) #MAILDIR=${HOME} #First check what your mail directory is! MAILDIR="/var/mail/rt/" LOGFILE="home/rt//procmail.log" LOG="--- Logging ${LOGFILE} for ${LOGNAME}, " VERBOSE=yes MAILDOMAIN="rt.mydomain.com" RT_MAILGATE="/opt/rt3/bin/rt-mailgate" #RT_MAILGATE="/usr/local/bin/rt-mailgate" RT_URL="http://rt.mydomain.com/" LOGABSTRACT=all :0 { # the following line extracts the recipient from Received-headers. # Simply using the To: does not work, as tickets are often created # by sending a CC/BCC to RT TO=`formail -c -xReceived: |grep $MAILDOMAIN |sed -e 's/.*for *<*\(.*\)>* *;.*$/\1/'` QUEUE=`echo $TO| $HOME/get_queue.pl` ACTION=`echo $TO| $HOME/get_action.pl` :0 h b w |/usr/bin/perl $RT_MAILGATE --queue $QUEUE --action $ACTION --url $RT_URL } I know that my get_queue.pl and get_action.pl scripts work, as those have been previously tested. Any help and/or guidance you can give would be greatly appreciated. Nicôle

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  • How to verify a self-signed certificate from another server using openssl?

    - by ntsue
    I am new to openssl and I am having some trouble verifying (from a client machine) an ftp server using ssl with a self-signed certificate. I generated the .cer file by going to my server in IIS and exporting the certificate without the private key. I believe that this is all that I should need on the client side, right? I use the following code to verify the certificate openssl verify ftp.cer and the error that I get back is error 20 at 0 depth lookup:unable to get local issuer certificate I tried this as well: openssl verify -CAfile ftp.cer ftp.cer but received the same error. From what I understand about SSL, this is happening because I have no chain of trust that connects to this server. By default, openssl did not install any trusted CAs and this is fine. I would just like to tell it to trust this server. I tried various tutorials telling me how to add a certificate authority, including this one here, however the instructions are for linux and include adding a symlink and I am trying to do this in windows. If anyone could provide any guidance on how to do this, or enlighten me if I am not understanding something correctly, I would greatly appreciate it. Thanks!

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  • Cisco QoS Guidence

    - by Kyle Brandt
    I have a 10M connection to the internet that is hooked into a 100M port. I am getting started with QoS, and am hopping for a little guidance on setting it up on a Cisco 3825 router. Right now I am going forward with the idea that I have to implement it on my router, and the provider can't provide QoS for me. How I envision it working is that the QoS will drop or queue packets on my router and that will help prevent a situation where the provider has to start dropping a lot of packets. Right now all I am tasked with is making sure that one of the 3 LANs gets a certain slice (say 3M for Gig Lan1) of the 10M internet connection (But ideally this will be more flexible in the Future). 10M Internet on 100M port on HWIC-4ESW +-----------------------+ | | Gig Lan1 | Cisco 3825 | Lan3 on HWIC-4ESW | | +-----------------------+ Gig Lan2 I need to learn more about QoS, but having a target technology and maybe example configuration will help me wrap my head around the reading I am doing a little more. Which Cisco QoS Technology do you recommend for this particular situation? Have a basic sample config of how this might work? Right now the 10M line is not congested, so this more to have something in place in case it starts to become mildly congested in the future.

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  • Will Parallel-port dongle work on USB-to-Parallel Adapter?

    - by Gary M. Mugford
    We have a niche program running on a Win2K laptop that uses a security dongle connected to a parallel port for authentication. The laptop is getting creaky and I spent a frustrating night last night shopping various websites for a new laptop that had a parallel port. Seems I'm about three years late [G]. The question I have, is, if I buy a new(ish) laptop and use a USB-to-Parallel Port adapter, will the security dongle work? I know I'm not being specific about the app, but it's one most people wouldn't have heard of anyways. I've been guessing the answer to my question is no, since the app won't know to send a request out to the non-existent port. But, if the process actually is that the dongle sends a message INTO the computer every now and then, then it might work. And, I'm not sure whether the dongle is only needed at program startup time or randomly. The dongle is a 'permanent' addition to the old laptop. This is all about the money. We can have a newly-updated version of the program (which won't add any features we need) for the princely sum of $2700. Or we can spend $500 on a refurbed laptop still running WinXP, add a 30 buck adapter and keep the same solid, stolid performance we've come to appreciate. But it all comes down to the dongle behaviour. Oh, and a dock won't work. The whole laptop issue is about moving about the various nooks and crannies of the building with laptop in hand. Thanks for any suggestions/guidance. GM

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  • Application Performance Episode 2: Announcing the Judges!

    - by Michaela Murray
    The story so far… We’re writing a new book for ASP.NET developers, and we want you to be a part of it! If you work with ASP.NET applications, and have top tips, hard-won lessons, or sage advice for avoiding, finding, and fixing performance problems, we want to hear from you! And if your app uses SQL Server, even better – interaction with the database is critical to application performance, so we’re looking for database top tips too. There’s a Microsoft Surface apiece for the person who comes up with the best tip for SQL Server and the best tip for .NET. Of course, if your suggestion is selected for the book, you’ll get full credit, by name, Twitter handle, GitHub repository, or whatever you like. To get involved, just email your nuggets of performance wisdom to [email protected] – there are examples of what we’re looking for and full competition details at Application Performance: The Best of the Web. Enter the judges… As mentioned in my last blogpost, we have a mystery panel of celebrity judges lined up to select the prize-winning performance pointers. We’re now ready to reveal their secret identities! Judging your ASP.NET  tips will be: Jean-Phillippe Gouigoux, MCTS/MCPD Enterprise Architect and MVP Connected System Developer. He’s a board member at French software company MGDIS, and teaches algorithms, security, software tests, and ALM at the Université de Bretagne Sud. Jean-Philippe also lectures at IT conferences and writes articles for programming magazines. His book Practical Performance Profiling is published by Simple-Talk. Nik Molnar,  a New Yorker, ASP Insider, and co-founder of Glimpse, an open source ASP.NET diagnostics and debugging tool. Originally from Florida, Nik specializes in web development, building scalable, client-centric solutions. In his spare time, Nik can be found cooking up a storm in the kitchen, hanging with his wife, speaking at conferences, and working on other open source projects. Mitchel Sellers, Microsoft C# and DotNetNuke MVP. Mitchel is an experienced software architect, business leader, public speaker, and educator. He works with companies across the globe, as CEO of IowaComputerGurus Inc. Mitchel writes technical articles for online and print publications and is the author of Professional DotNetNuke Module Programming. He frequently answers questions on StackOverflow and MSDN and is an active participant in the .NET and DotNetNuke communities. Clive Tong, Software Engineer at Red Gate. In previous roles, Clive spent a lot of time working with Common LISP and enthusing about functional languages, and he’s worked with managed languages since before his first real job (which was a long time ago). Long convinced of the productivity benefits of managed languages, Clive is very interested in getting good runtime performance to keep managed languages practical for real-world development. And our trio of SQL Server specialists, ready to select your top suggestion, are (drumroll): Rodney Landrum, a SQL Server MVP who writes regularly about Integration Services, Analysis Services, and Reporting Services. He’s authored SQL Server Tacklebox, three Reporting Services books, and contributes regularly to SQLServerCentral, SQL Server Magazine, and Simple–Talk. His day job involves overseeing a large SQL Server infrastructure in Orlando. Grant Fritchey, Product Evangelist at Red Gate and SQL Server MVP. In an IT career spanning more than 20 years, Grant has written VB, VB.NET, C#, and Java. He’s been working with SQL Server since version 6.0. Grant volunteers with the Editorial Committee at PASS and has written books for Apress and Simple-Talk. Jonathan Allen, leader and founder of the PASS SQL South West user group. He’s been working with SQL Server since 1999 and enjoys performance tuning, development, and using SQL Server for business solutions. He’s spoken at SQLBits and SQL in the City, as well as local user groups across the UK. He’s also a moderator at ask.sqlservercentral.com.

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  • Customer Spotlight - CSX: Charles Pack

    - by cwarticki
    A couple of weeks ago, I had the distinct privilege of facilitating a training session with CSX.  CSX is a wonderful customer.  They've been a dedicated Oracle customer for many years. They have quite an extensive Oracle footprint including Server Technologies, Fusion Middleware and E-Business Suite products.  They also utilize Oracle's Solution Support Center offering from Advanced Customer Services, for their Database products. I'm always on the lookout for Oracle gems and I discovered one at CSX. Before my session began, I met with Charles Pack.  In my view, he's an Oracle guru.  Don't take my word for it, just read any of the books he's authored or co-authored and the one soon to be released.  Just looking at his bookshelf, I saw titles going back to Oracle 7 & 8, as well as a Solaris 2.x book.  Remember those?   Anyway, Charles is a technologist and a manager (and wears numerous other hats too).  I had a wonderful time talking with Charles and getting to know him.  What do you consider keys to your personal success?  Inability to quit.  When I decide that I will accomplish something, I will, regardless of the nature of the challenge.  Never quitting means a perpetual drive for change and progress and setting examples for others to follow.  The reason I write OCP books is because I can provide a path for people to improve their knowledge of the product, gain a certification, and reach their professional goals. What do you consider the most important part of your job?  Negotiations.  We all have competing goals, incentives and finite resources, but we should all have the same common goal – progress.  So finding the way for all parties to progress is the most important thing we do. What is the most important part of your relationship with Oracle?  Oracle provides solutions – not just products - that are critical to our business success.  So continuous communication regarding education, services, product roadmaps and shared goals is the most important part of our ongoing relationship. Charles is an Oracle loyalist.  His career has been based on using our products and he's passionate about the products he works with.  You can tell, just by talking with him.  I appreciate Charles and other customers like him.  He's an expert in his field and an Oracle evangelist.  He is an asset to CSX and to their success.  He's an advocate for Oracle and an asset to our customers.  You can also friend and follow Charles on Twitter @charlesapack It was a pleasure meeting you Charles! -Chris Warticki Global Customer Management

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  • script calling script as other user

    - by viktor tron
    Using CentOs, I want to run a script as user 'training' as a system service. I use daemontools to monitor the process, which needs a launcher script that is run as root: : #!/bin/bash exec >> /var/log/training_service.log 2>&1 setuidgid training training_command This last line is not good enough since for training_command, we need environment for training user to be set. : su - training -c 'training_command' gives 'standard in must be tty' as su making sure tty is present to potentially accept password. I know I could make this disappear by modifying /etc/sudoers a la Bash & 'su' script giving an error "standard in must be a tty" but i am reluctant and unsure of consequences. : runuser - training -c 'training_command' gives runuser: cannot set groups: Connection refused. I found no sense or resolution to this message. I am stuck. Is this something so hard to achieve? I appreciate all insight and guidance to best practice.

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  • Can't install SB750 RAID drivers in Windows 7 for two additional storage drives

    - by jf46
    Mobo: ASUS M4A79XTD, 790X/SB750 OS: Windows 7 x64 I currently have SATA 1-4 set to RAID and SATA 5-6 set to IDE. I have an SSD connected to SATA5 with Windows 7 installed on it, and that works fine. I also have configured a RAID 1 array of two 1TB HDDs, connected to SATA 1 and 2. These don't show up in Windows, and I'm having trouble getting the RAID driver installed. I even tried booting from the Windows DVD and repairing or installing Windows, but when I navigated to the relevant .sys files on my motherboard's driver CD, Windows setup told me that the files in question weren't relevant to my hardware. To be clear: I'm not trying to install Windows on a RAID. I have Windows installed on a separate disk on a separate SATA controller. I just want to get the SB750 RAID drivers installed so that the Windows disk utility can see my RAID 1 array, which is composed of two other disks. Do I need to wipe my SSD and reinstall Windows to get the RAID driver installed? That seems kind of ridiculous, and given what I described above, I'm not even sure it would work. Any help or guidance would be appreciated - thanks! Edit: Also, I've copied the driver files from the mobo CD into system32 and rebooted, no luck. Then I changed HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\iaStorV\Start from 3 to 0, and that didn't work either.

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  • Raid-5 Performance per spindle scaling

    - by Bill N.
    So I am stuck in a corner, I have a storage project that is limited to 24 spindles, and requires heavy random Write (the corresponding read side is purely sequential). Needs every bit of space on my Drives, ~13TB total in a n-1 raid-5, and has to go fast, over 2GB/s sort of fast. The obvious answer is to use a Stripe/Concat (Raid-0/1), or better yet a raid-10 in place of the raid-5, but that is disallowed for reasons beyond my control. So I am here asking for help in getting a sub optimal configuration to be as good as it can be. The array built on direct attached SAS-2 10K rpm drives, backed by a ARECA 18xx series controller with 4GB of cache. 64k array stripes and an 4K stripe aligned XFS File system, with 24 Allocation groups (to avoid some of the penalty for being raid 5). The heart of my question is this: In the same setup with 6 spindles/AG's I see a near disk limited performance on the write, ~100MB/s per spindle, at 12 spindles I see that drop to ~80MB/s and at 24 ~60MB/s. I would expect that with a distributed parity and matched AG's, the performance should scale with the # of spindles, or be worse at small spindle counts, but this array is doing the opposite. What am I missing ? Should Raid-5 performance scale with # of spindles ? Many thanks for your answers and any ideas, input, or guidance. --Bill Edit: Improving RAID performance The other relevant thread I was able to find, discusses some of the same issues in the answers, though it still leaves me with out an answer on the performance scaling.

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  • A (Late) Meme Monday Post: On SQLFamily

    - by Argenis
      Yesterday a member of the SQL community who I deeply admire sent me a DM on Twitter asking whether I had done a SQLFamily post for Thomas LaRock’s (blog|@SQLRockstar) Meme Monday for November. I replied that I did not, and I regretted not having done so. A subtle DM followed my response: “Get on it, you have all week”. And indeed I must. So here’s an attempt to express some of my feelings on a community that has catapulted my career like nothing else before I embraced it. Nanos Gigantium Humeris Insidentes I stand on the shoulders of giants. My SQLFamily has given me support at all levels. Professionally and personally. There is never a lack of will to help and provide advice to others in this community. And I do my best to help. On #SQLHelp on Twitter, via email, or even on the phone. I expect no retribution, because I know that when and if I do run into problems, my SQLFamily will be there for me. I have met some of the most humble, dedicated and most professional people in the SQL community. And some of them have pretty big titles: MVPs, MCMs, Regional Mentors, and even leaders of PASS, SQLCAT members, and even PMs and Devs on the SQL Server team. All are welcome, and that includes YOU! I have also met some people that are rather reserved and don’t participate as much in the community, for whatever reason. Be as it may, let it be know to all that we are a very welcoming community – heck, some of my closest friends and people I can count on in the community have completely opposite political views. We share one goal: to get better and help others get better. Even if you are a lurker – my hope is that one day you’ll decide to give back some of what you have learned. You have to take it to the next level On one of my previous jobs as an IT Supervisor I used to tell my team all the time about the benefits of continuous education and self-driven learning. Shortly after I left that job, the company went bankrupt and some of my staff got laid off – some without any severance pay whatsoever. I eventually found out that some of them had a really hard time finding another job, because their skills were simply outdated. They had become stale professionals. Don’t be one of them. If you don’t take advantage of these learning resources, somebody else will – and that person has an advantage over you when applying for that awesome job position that got opened. There’s a severe shortage of good DBAs and DB Devs out there. What’s your excuse for not being excellent? Even if your knowledge of SQL Server is at the beginner level, really – you have no excuse to get better. Just go to SQLUniversity and learn from there. Don’t get stale! Thank You To all of you in the SQL community who put so much time and energy into helping others, my deepest gratitude to you. I can’t wait to meet you all again at the next event and share our SQL stories over a pint of beer (or a shot of Jaeger) Cheers! -Argenis

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  • Interpreting and using the Asterisk "timing test" command

    - by zigg
    Timing is very important for certain kinds of applications in Asterisk. If DAHDI is the timing source, the dahdi_test command can be used to check the timing provided by the DAHDI kernel module. If dahdi_test returns exclusively measurements above 99.975%, the DAHDI timing source is generally considered good. Since Asterisk 1.6, new timing sources have become available, such as pthread and timerfd. The accuracy of these timing sources seems to be measurable with the Asterisk CLI timing test command: localhost*CLI> timing test Attempting to test a timer with 50 ticks per second. Using the 'timerfd' timing module for this test. It has been 1000 milliseconds, and we got 50 timer ticks My concern is that timing 50 ticks seems to be a considerably less stressful test than dahdi_test's 8192 samples in 8000 ms, particularly since just about every system I've tried it on, virtual or otherwise, can handle it. I can ask timing test to ramp it up to what I think are dahdi_test's standards: localhost*CLI> timing test 1024 Attempting to test a timer with 1024 ticks per second. Using the 'timerfd' timing module for this test. It has been 1000 milliseconds, and we got 1024 timer ticks This will indeed break down a bit depending on the system I'm using, usually with a decrease in timer ticks. But I'm not sure whether this is useful to stress it to this level. Is there authoritative guidance on using and interpreting the timing test command to insure that a given Asterisk system has a timing source that will work well?

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  • SQLAuthority News – Getting Ready to Learn SQL Server

    - by pinaldave
    If you have read my earlier blog post you must be aware of how I am always eager to learn new things. I have signed up for three days learning course at Koenig Solutions for End to End SQL Server Business Intelligence. You may wonder why I sign up for the course on SQL Server when it seems that I know a lot about it. Well, the belief is incorrect that I know a lot. I think there are plenty of things which I have been dreaming to learn. Why am I learning SQL Server? First of all – I do not know everything and second it is always a good idea to learn more. No matter how old we get or how much we think we know – there are always details which we can learn and refresh few concepts. Learning is never ending process philosophically but it is true as well in reality. SQL Server 2012 is already released earlier this year and there are plenty of enhancements released. Recently I was going over the list of the all the new feature and enhancement and I realized that there few things about SQL Server 2008 R2 I never got a chance to have a hand’s on experience and we have entered into the era of SQL Server 2012. I feel a bit bad about it and I decided to make it a priority for me to learn all the missing experiences. Quick Action – Registration The very same day I called up my friend who owns Koenig Solution and expressed my concern and requested his help. During my early career when I was a SQL Server Trainer, we had some good synergy between us and now they are very successful offshore training company by having a physical location in Delhi,  Goa, Dahradun, Shimla, Goa and Bangalore. I quickly visited their Bangalore Center and paid my fees for learning SQL Server Business Intelligence course. Very next second I got call from my friend suggesting that I learn this course from Delhi instead of Bangalore. As per him I should travel to Delhi and learn the course how other students are learning “Away from Home”. This made sense as I stay in Bangalore and if I return home after a long day of learning, I will be not able to practice for the next day as there will be “sweet distraction” of the family. Well I opted for Delhi. What Registration Fees Included I learned from registration processes that the following were included in the fees. 3 meals every day (hearty breakfast, lunch from premium restaurants and home cooked like dinner) Airport pick up and drop Hotel Stay Internet at hotel and at learning institute Unlimited coffee and snacks at learning institute Printed Learning Material Certification Fees (if applicable) Learning material … And of course classroom training I thought registration process was over when I paid fees. Well, I was in for a very nice surprise. Registration Experience – Bliss! Within few hours I received emails from Center Manager of Delhi with all the necessary details I need to know about my learning experience. The email contained following information in detail and it blew me away. Details of the pick up from airport – driver information Details of Delhi and important information List of all the important people and emergency contact details Internet connection details Detail of the trainer and all the training details and lots of other relevant information Well so far everything looks great. Tomorrow I will reach to Delhi and I will share how things go on. Any suggestion for things to do in Delhi? Reference: Pinal Dave (http://blog.sqlauthority.com) Filed under: PostADay, SQL, SQL Authority, SQL Query, SQL Server, SQL Tips and Tricks, SQL Training, T SQL, Technology

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  • Why should one have a secondary DNS server?

    - by Sam Levin
    I'm very confused. I basically understand how DNS works. Here's an example that helps illustrate what I'm having trouble understanding. Right now, I run a small web-server. I use my provider's DNS manager, so I don't have a DNS server hosted on the machine. Let's say for a second, that I don't use my host's DNS, and I decide to set up a DNS server on my server. Hypothetical scenario: my server (entire) server goes down - DNS included. Why do I need backup DNS? If the server is down, who cares if the DNS server is down too, considering that even if I had DNS up (it wasn't on the crashed server), it wouldn't be able to forward requests anyway since the server would be down? Is the point of having secondary DNS, to be able to change the IP addresses that your DNS server points to, so if your webserver was down, you could redirect traffic to a backup? How would you switch to the secondary provider, in the event that your main DNS provider becomes unavailable? Is a backup DNS system basically up all the time? How is it configured? Is it just an exact clone of the DNS server you would have on your server? Do they run simultaneously? Hopefully someone can see what I'm hung up on, and provide some guidance. Thanks

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  • What Counts For a DBA: Imagination

    - by drsql
    "Imagination…One little spark, of inspiration… is at the heart, of all creation." – From the song "One Little Spark", by the Sherman Brothers I have a confession to make. Despite my great enthusiasm for databases and programming, it occurs to me that every database system I've ever worked on has been, in terms of its inputs and outputs, downright dull. Most have been glorified e-spreadsheets, many replacing manual systems built on actual spreadsheets. I've created a lot of database-driven software whose main job was to "count stuff"; phone calls, web visitors, payments, donations, pieces of equipment and so on. Sometimes, instead of counting stuff, the database recorded values from other stuff, such as data from sensors or networking devices. Yee hah! So how do we, as DBAs, maintain high standards and high spirits when we realize that so much of our work would fail to raise the pulse of even the most easily excitable soul? The answer lies in our imagination. To understand what I mean by this, consider a role that, in terms of its output, offers an extreme counterpoint to that of the DBA: the Disney Imagineer. Their job is to design Disney's Theme Parks, of which I'm a huge fan. To me this has always seemed like a fascinating and exciting job. What must an Imagineer do, every day, to inspire the feats of creativity that are so clearly evident in those spectacular rides and shows? Here, if ever there was one, is a role where "dull moments" must be rare indeed, surely? I wanted to find out, and so parted with a considerable sum of money for my wife and I to have lunch with one; I reasoned that if I found one small way to apply their secrets to my own career, it would be money well spent. Early in the conversation with our Imagineer (Cindy Cote), the job did indeed sound magical. However, as talk turned to management meetings, budget-wrangling and insane deadlines, I came to the strange realization that, in fact, her job was a lot more like mine than I would ever have guessed. Much like databases, all those spectacular Disney rides bring with them a vast array of complex plumbing, lighting, safety features, and all manner of other "boring bits", kept well out of sight of the end user, but vital for creating the desired experience; and, of course, it is these "boring bits" that take up much of the Imagineer's time. Naturally, there is still a vital part of their job that is spent testing out new ideas, putting themselves in the place of a park visitor, from a 9-year-old boy to a 90-year-old grandmother, and trying to imagine what experiences they'd like to have. It is these small, but vital, sparks of imagination and creativity that have the biggest impact. The real feat of a successful Imagineer is clearly to never to lose sight of this fact, in among all the rote tasks. It is the same for a DBA. Not matter how seemingly dull is the task at hand, try to put yourself in the shoes of the end user, and imagine how your input will affect the experience he or she will have with the database you're building, and how that may affect the world beyond the bits stored in your database. Then, despite the inevitable rush to be "done", find time to go the extra mile and hone the design so that it delivers something as close to that imagined experience as you can get. OK, our output still can't and won't reach the same spectacular heights as the "Journey into The Imagination" ride at EPCOT Theme Park in Orlando, where I first heard "One Little Spark". However, our imaginative sparks and efforts can, and will, make a difference to the user who now feels slightly more at home with a database application, or to the manager holding a report presented with enough clarity to drive an interesting decision or two. They are small victories, but worth having, and appreciated, or at least that's how I imagine it.

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  • Dissing Architects, or "What's wrong with the coffee?"

    - by Bob Rhubart
    In my conversations with people in architect roles, tales of animosity, disrespect, and outright hostility aren't uncommon. And it's clear that in more than a few organizations architects regularly face a tough uphill climb. For architects with the requisite combination of technical, organizational, and people skills, that rough treatment is grossly undeserved. But tales of unqualified people in positions up and down the IT food chain are also easy to come by. So what's the other side of the architect story? Are some architects tarnishing the role and making life miserable for their more qualified colleagues? The various quotes included below were culled from a variety of sources. The criticism is harsh, and the people behind these quotes clearly have issues with architects. Still, whether based on mere opinion or actual experience, the comments shed some light on behaviors that should raise red flags for anyone pursuing a career as an architect. If you're an architect, and you've ever noticed that your coffee tastes like window cleaner, or your car is repeatedly keyed, or no one ever holds the elevator for you, maybe you need to do a little soul searching... Those Who Can, Code; Those Who Can't, Architect | Joe Winchester [May 18, 2007] "At the moment there seems to be an extremely unhealthy obsession in software with the concept of architecture. A colleague of mine, a recent graduate, told me he wished to become a software architect. He was drawn to the glamour of being able to come up with grandiose ideas - sweeping generalized designs, creating presentations to audiences of acronym addicts, writing esoteric academic papers, speaking at conferences attended by headless engineers on company expense accounts hungrily seeking out this year's grail, and creating e-mails with huge cc lists from people whose signature footer is more interesting than the content. I tried to re-orient him into actually doing some coding, to join a team that has a good product and keen users both of whom are pushing requirements forward, to no avail. Somehow the lure of being an architecture astronaut was too strong and I lost him to the dark side." Don't Let Architecture Astronauts Scare You | Joel Spolsky [April 21, 2001] "It's very hard to get them to write code or design programs, because they won't stop thinking about Architecture. They're astronauts because they are above the oxygen level, I don't know how they're breathing. They tend to work for really big companies that can afford to have lots of unproductive people with really advanced degrees that don't contribute to the bottom line. Remember that the architecture people are solving problems that they think they can solve, not problems which are useful to solve." Non Coding Architects Suck | Richard Henderson [May 24, 2010] "If a guy with a badge saying 'system architect' looks blank on low-level issues then he is not an architect, he is a business-analyst who went on a course. He will probably wax lyrical on all things high-level and 'important.' He will produce lovely object hierarchies without a clue to implementation. He will have a moustache and play golf." Architects Play Golf | Sunir Shah [August 15, 2012] "Often arrogant architects are difficult to get a hold of during the implementation phase because they no longer feel the need to stick around. Especially around midnight when most of the poor sob [sic] developers are still banging away. After all, they've already solved the problem--the rest is just an implementation exercise." Engineer vs Architect(Part of a discussion on the IT Architect Network Group on LinkedIn) "[An] architect spends his time producing white papers full of acronyms he does not understand but that impress his boss [while the] engineer keeps his head down and does the actual job." Architects Don't Code | [Author Unknown] "Faulty belief: System Architects don't need to code anymore. They know what they are talking about by virtue of the fact that they are System Architects."

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  • What Counts For A DBA: ESP

    - by Louis Davidson
    Now I don’t want to get religious here, and I’m not going to, but what I’m going to describe in this ‘What Counts for a DBA’ installment sometimes feels like magic. Often  I will spend hours thinking about the solution to a design issue or coding problem, working diligently to try to come up with a solution and then finally just give up with the feeling that I’m not even qualified to be a data entry clerk, much less a data architect.  At this point I often take a walk (or sometimes a nap), and then it hits me. I realize that I have the answer just sitting in my brain, ready to implement.  This phenomenon is not limited to walks either; it can happen almost any time after I stop my obsession about a problem. I call this phenomena ESP (or Extra-Sensory Programming.)  Another term for this could be ‘sleeping on it’, and while the idiom tends to mean to let time pass to actively think about a problem, sleeping on a problem also lets you relax and let your brain do the work. I first noticed this back in my college days when I would play video games for hours on end. We would get stuck deep in some dungeon unable to find a way out, playing for days on end until we were beaten down tired. Once we gave up and walked away, the solution would usually be there waiting for one of us before we came back to play the next day.  Sometimes it would be in the form of a dream, and sometimes it would just be that the problem was now easy to solve when we started to play again.  While it worked great for video games, it never occurred when I studied English Literature for hours on end, or even when I worked for the same sort of frustrating hours attempting to solve a homework problem in Calculus.  I believe that the difference was that I was passionate about the video game, and certainly far less so about homework where people used the word “thou” instead of “you” or x to represent a number. This phenomenon occurs somewhat more often in my current work as a professional data programmer, because I am very passionate about SQL and love those aspects of my career choice.  Every day that I get to draw a new data model to solve a customer issue, or write a complex SELECT statement to ferret out the answer to a complex data question, is a great day. I hope it is the same for any reader of this blog.  But, unfortunately, while the day on a whole is great, a heck of a lot of noise is generated in work life. There are the typical project deadlines, along with the requisite project manager sitting on your shoulders shouting slogans to try to make you to go faster: Add in office politics, and the occasional family issues that permeate the mind, and you lose the ability to think deeply about any problem, not to mention occasionally forgetting your own name.  These office realities coupled with a difficult SQL problem staring at you from your widescreen monitor will slowly suck the life force out of your body, making it seem impossible to solve the problem This is when the walk starts; or a nap. Maybe you hide from the madness under your desk like George Costanza hides from Steinbrenner on Seinfeld.  Forget about the problem. Free your mind from the insanity of the problem and your surroundings. Then let your training and education deep in your brain take over and see if it will passively do the rest for you. If you don’t end up with a solution, the worst case scenario is that you have a bit of exercise or rest, and you won’t have heard the phrase “better is the enemy of good enough” even once…which certainly will do your brain some good. Once you stop expecting whipping your brain for information, inspiration may just strike and instead of a humdrum solution you find a solution you hadn’t even considered, almost magically. So, my beloved manager, next time you have an urgent deadline and you come across me taking a nap, creep away quietly because I’m working, doing some extra-sensory programming.

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  • Conference networking for the socially awkward

    - by Melanie Townsend
    Do you approach a room full of strangers with excitement at all the new people you’re going to chat to over coffee and a muffin as you swap tales of how you convinced your manager to give you the day “off”? Or, do you find rooms full of strangers intimidating and begin by scouting out a place you can stand quietly and not be in someone’s way until the next session begins? If you’re on the train to extrovert city, that’s great, well done, move along. If, on the other hand, a room full of strangers who all seem to inexplicably know each other already is more challenge than opportunity, then making those connections with other professionals can be more difficult. So, here’s some advice, some gleaned from other things I’ve read online when trying to overcome my own discomfort in large groups (hopefully minus the infuriating condescension), others are just things I’ve found helpful over the years. Start small Smaller groups are less intimidating, and, now that you’ve taken the plunge to show up, it’s harder to remain inconspicuous. I find it’s easier to speak to new people once the option NOT to has been taken away. You’re there now, smile through the awkward and you’ll be forever grateful when the three people you’ve met and gotten to know here are also at that gigantic conference later on (ideally, introducing you to other people). Smile, or at the very least, stop scowling You probably don’t even know you’re doing it. If your resting face doesn’t come across as manically happy, tinge that with some social anxiety and you become one great ball of unapproachable. Normally, I wouldn’t suggest this as a problem that needs fixing, I have personally honed this face to use while travelling alone all the time. However, if you are indeed hoping to meet some useful people and get the most out of this conference, you may need to remind yourself to smile. Prepare some ice breakers This is going to sound stupid, like “no one does this right?” stupid, but, just, trust me a minute. It’s okay to prepare. You don’t need to write word-for-word questions to ask people and practice them in a mirror – that would be strange. I’m suggesting to just have an arsenal of questions to ask people if you get stuck, what session has been your favorite, which ones are you most looking forward to, have you heard X presenter speak before, what did you think of them? Even just thinking about these things in advance can help, and, as a bonus, while the other person is answering it gives you a moment to tamp down that panic, I mean breathe, I mean get to know them. You’re not alone (in the least creepy way possible) See that person in the corner clutching their phone with a mild deer in the headlights look?  That is potentially your new conference buddy. Starting with something along the lines of: I don’t know about you, the sessions here are great but I find the crowds a little tough to deal with. Mind if I park here for a second? is a decent opener. Just walking around and looking at exhibitors (if applicable) is fine, but it’s a little too easy to wander about and not actually speak to anyone if that’s all you’re doing. If joining a group of people talking is too much to start with, one-on-one can be easier. Have goals Are there people in particular you wanted to speak to? Did you have a personal goal of speaking to at least “x” new people? Are you trying to get a contact in a specific company because you want to work with them on something? Does the business have vague goals as well that you may or may not be judged on later? Making specific goals you can accomplish lets you know whether you’ve actually succeeded in your “networking pursuits” or what you need to work on more for next time. Everyone’s got their own coping technique. Some people are able to remind themselves that “humans are fundamentally social creatures” and somehow that helps them, others drink which is not really something I recommend for professional conferences but to each their own, and some focus on the fact that networking can play a big role in their career path. Just do what works for you, and if there’re any tricks you’ve found helpful over the years, please share em.

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  • tomcat start service NoClassDefFoundError?

    - by mobibob
    I am trying to redeploy my server on a new server with a different DNS and IP address. Therefore, I think my problem is in the configuration to find JAR files. Is there a way to get more detail as to which class is being requested so I can narrow down my problem. Does anyone have any suggested troubleshooting guidance for such problem? BTW - the configuration was working on the original server, and I tried to find all the locations in the files: conf/, worker.properties, server.xml, catalina.policy, web.xml. The jarkarta.log repeats the starting... error initializing ... forever. Very boring, therefore, the problem has to be fundamental. Apparently, the error message is recorded in the log across more than one line and would be this: Error occurred during initialization of VM java/lang/NoClassDefFoundError : java/lang/Object [2012-05-21 18:20:33] [info] Procrun (2.0.4.0) started [2012-05-21 18:20:33] [info] Running Service... [2012-05-21 18:20:33] [info] Starting service... [2012-05-21 18:20:33] [info] Error occurred during initialization of VM [2012-05-21 18:20:33] [info] java/lang/NoClassDefFoundError [2012-05-21 18:20:33] [info] : java/lang/Object [2012-05-21 18:21:59] [info] Procrun (2.0.4.0) started [2012-05-21 18:21:59] [info] Running Service... [2012-05-21 18:21:59] [info] Starting service... [2012-05-21 18:21:59] [info] Error occurred during initialization of VM [2012-05-21 18:21:59] [info] java/lang/NoClassDefFoundError [2012-05-21 18:21:59] [info] : java/lang/Object [2012-05-21 18:35:16] [info] Procrun (2.0.4.0) started [2012-05-21 18:35:16] [info] Running Service... [2012-05-21 18:35:16] [info] Starting service... [2012-05-21 18:35:16] [info] Error occurred during initialization of VM [2012-05-21 18:35:16] [info] java/lang/NoClassDefFoundError [2012-05-21 18:35:16] [info] : java/lang/Object [2012-05-21 18:45:25] [info] Procrun (2.0.4.0) started [2012-05-21 18:45:25] [info] Running Service... [2012-05-21 18:45:25] [info] Starting service... [2012-05-21 18:45:25] [info] Error occurred during initialization of VM [2012-05-21 18:45:25] [info] java/lang/NoClassDefFoundError [2012-05-21 18:45:25] [info] : java/lang/Object [2012-05-21 18:46:29] [info] Procrun (2.0.4.0) started [2012-05-21 18:46:29] [info] Running Service... [2012-05-21 18:46:29] [info] Starting service... [2012-05-21 18:46:29] [info] Error occurred during initialization of VM [2012-05-21 18:46:29] [info] java/lang/NoClassDefFoundError

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  • Spotlight on an office - Denmark

    - by jessica.ebbelaar(at)oracle.com
    Hi, my name is Michael. I work as an Intern at the Danish office in Ballerup. My job is a part-time position beside my bachelor study in International Business at Copenhagen Business School. I joined Oracle end of February last year, and what a thrilling ride it has been! Last year, when I was offered the position, there was no doubt that I wanted to go for it. Back then, I only had little idea about Oracle as a company and what kind of exciting assignments lay ahead of me. My main role is internal communications, i.e. editor of a monthly employee’s news letter; Newszone. It is an interesting task, since it requires that I am updated on the different activities that take place within the Oracle Denmark office. I try to bring interesting articles, which are relevant and interesting news to my colleagues and it allows me to interact with many different persons at the office and to learn from their experience, which give me great inspiration and ideas for the magazine. Besides being the editor of Newszone, I also make sure that other communication flow freely at the Oracle Denmark office. I do this through our LCD screen channels. I update the internal channel with the latest information and important messages for employees, and on the external channel I circulate marketing videos featuring Oracle products and customer reference stories. In addition to this, I have the responsibility acting as a content manager of the Local Communication Denmark site on MyOracle (UCM). These are more or less my usual work assignments. On top of these I take care of various ad hoc assignments such as updating the GCM database, renew newspaper subscriptions etc. The Oracle Denmark office Being part of the local employees club I also assist with arranging social events outside working hours – e.g. evenings at the theater or cinema or by attending many of the sportsactivities;such as our running club, cycling club, food club and book club. These activities have indeed helped me grow my personal network within Oracle.  The office is packed with engaging, high-paced and motivated people who manage to take time off to spend a day attending Corporate Social Responsibility initiatives, one of them being GVD (Global Volunteer Day) with approximately 40 employees attending. This proofs some of the social responsible aspects of Oracle. I was positively surprised on how the office (named O-Zone) is designed. The office is designed into three distinct zones, namely Call zone, Project and Dialogue zone and Quiet zone, having different working environments for different job roles. The other thing which I like is that you do not have your own desk, which means you get to sit next to different people every day, getting new ideas and inspiration as well as getting to know more people in the organization you work in. To sum up: If you are considering pursuing an intern or a career after graduation in Oracle, do it! You will not regret it. It has given me many relevant practical experiences beside my study, and I am sure many great experiences will await you too.   Want to know more about the current vacancies in Denmark? Check http://campus.oracle.com for all of our vacancies.

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  • Apple Mac OS X Mavericks inside Virtual Box

    - by John Sonderson
    I have a few questions regarding Mac OS X and OS virtualization. A. Given all the legal restrictions imposed by Apple on Apple products, I would like to know whether it is legal to install the new and freely downloadable Apple Mac OS X Mavericks inside Oracle Virtual Box. B. What about older OS X versions such as Mountain Lion? C. How many machines can I install it on. What if I don't use the Mac to which the OS is downloaded but only use it on Virtual Box, and prefer to, say, install Linux on the Mac computer so that it doesn't become unusable due to the single user license policy and me running the OS on Windows 7 within Virtual Box? D. I have a PC running Windows 7 but would like to get the OS off a second had Mac I'm planning to purchase for this purpose. How must we proceed to copy the OS to an ISO so that I can install it on Windows 7? I am unfamiliar with Macs and do not know what software to use for the purpose, nor where the OS is downloaded to (as an ISO, .app executable, .gz or .zip file or whatever). If anyone could provide some guidance with the process I would sincerely appreciate it. Thanks.

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  • ntop to analyse bandwidth usage on multiple ASA 5505

    - by dunxd
    I have set up a netflow server at our data centre, which is connected via VPN to ~40 remote offices using Cisco ASA 5505. The aim is to analyse usage data and find out exactly how the remote connections are being used. I followed through http://techowto.files.wordpress.com/2008/09/ntop-guide.pdf to set up ntop and https://supportforums.cisco.com/docs/DOC-6114 to set up the ASAs. I can see from the Plugin Netflow Statistics page that netflow packets from my ASAs are being received - the counter is increasing. However, I am not seeing any breakdown on the Global Traffic Statistic page after switching to the Netflow interface. I'm just seeing a pie chart showing 100% traffic for eth0. The interfaces and documentation are a little hard to follow so I am not sure I have got things configured correctly. When setting up my NetFlow-device.2 I can specify Virtual NetFlow Interface Network Address - the web UI says This value is in the form of a network address and mask on the network where the actual NetFlow probe is located. is this a Network address (e.g. 192.168.0.0/24) or an actual host IP address (192.167.0.1/24)? If that should be a network address, is this the network in which one of my ASAs is or the network in which my ntop server is? If a host IP address, is this the IP address used by eth0 on my ntop server, the IP address of an ASA, or something else? Do I need a separate virtual interface for each ASA I am collecting netflow data from? Any guidance would be greatly welcome.

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