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• Web development: Haskell or Scheme

  - by Robert E. Lester

  I would like to to choose one of these languages for building web applications. I'm not interested in framework per say, but have the following needs: Rapid development. Easy to scale. Strong community for the web. Quick and easy to deploy. I'm very familiar with Haskell, and have some familiarity with scheme (in particular PLT). Scheme appeals to me as good candidate for web development due to it's simple syntax which is homogenous across libraries. I state this despite my subjective opinion that Haskell is a 'cleaner' language. Haskell web apps seem to require learning and building a patchwork of different combinator libraries. On the plus side, I realise this can be quite expressive, although I'd prefer to eliminate impedance mismatches where possible. While scheme-plt looks to be a good fit, I can find but one example of it being used in the "real world". Haskell doesn't seem to fair too much better here, but there seems to be a bigger community behind the web side. Please help me make up my mind. For the most part I'm interested in real-world use cases.

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• Where is the Open Source alternative to WPF?

  - by Evan Plaice

  If we've learned anything from HTML/CSS it's that, declarative languages (like XML) work best to describe User Interfaces because: It's easy to build code preprocessors that can template the code effectively. The code is in a well defined well structured (ideally) format so it's easy to parse. The technology to effectively parse or crawl an XML based source file already exists. The UIs scripted code becomes much simpler and easier to understand. It simple enough that designers are able to design the interface themselves. Programmers suck at creating UIs so it should be made easy enough for designers. I recently took a look at the meat of a WPF application (ie. the XAML) and it looks surprisingly familiar to the declarative language style used in HTML. It's blindingly apparent to me that the current state of desktop UI development is largely fractionalized, otherwise there wouldn't be so much duplicated effort in the domain of user interfaces (IE. GTK, XUL, Qt, Winforms, WPF, etc). There are 45 GUI platforms for Python alone It's painfully obvious to me that there should be a general purpose, open source, standardized, platform independent, markup language for designing desktop GUIs. Much like what the W3C made HTML/CSS into. WPF, or more specifically XAML seems like a pretty likely step in the right direction. Why hasn't anyone in the Open Source community (AFAIK) even scratched the surface of this issue. Now that the 'browser wars' are over should we look forward to a future of 'desktop gui wars?' Note: This topic is relatively subjective in the attempt to be 'future-thinking.' I think that desktop GUI development in its current state sucks ((really)hard) and, even though WPF is still in it's infancy, it presents a likely solution to the problem. Has no one in the OS community looked into developing something similar because they don't see the value, or because it's not worth the effort?

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• Am I making the right choice in choosing Yii as my PHP Framework?

  - by Bara

  I am about to begin development of a new website and have been doing research on PHP Frameworks. I'm not an advanced PHP developer, but I have been developing web sites and apps (in asp.net) for a few years now. My website will primarily be AJAX-based (using jQuery) and making lots of calls to web services. After some research, here's what I came up with: CakePHP: Originally started developing in this, but found it too complex. The fact that it forces you to use and learn all this new stuff just to use it was a bit daunting, so I put it aside for the time being. Zend: The performance of the framework leaves me a bit skeptical, but I heard it has great support for creating web services. I also heard it was a bit complex. CodeIgniter: No real reason for not using this one. Based on what I've read CodeIgniter and Yii are very similar, but Yii is a bit faster and doesn't have un-needed code for PHP4 (since I plan on developing exclusively in PHP5). As far as Yii, the only things that scare me about it are that it is newer than the other frameworks so it has a smaller community. It also doesn't seem to have a ton of web service support (only SOAP, from my understanding) as opposed to Zend. So my questions come down to: Should these things worry me? (not as big of a community, poor web service support) Is there anything else I should look into? Is my choice of Yii over the other frameworks ok for a primarily AJAX-based web app? Bara

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• Parameters lost on login form submitted with post in JBoss

  - by Supowski

  My login page contains two forms: one for logging in and one for signing up. Shorten like this: <form name="LoginForm" id="LoginForm" method="post" action="j_security_check" > <input type="text" name="j_username" /> <input type="text" name="j_password" /> <input type="submit" value="Sing In" /> <form> <form name="SignUpForm" id="SignUpForm" method="post" action="/homepage" > <input type="text" name="loginName" /> <input type="password" name="password1" /> <input type="password" name="password2" /> <input type="submit" value="Sing Up" /> <form> I If 'Sing Up', than values of input are lost during processing and not passed into my Servlet. It works fine with GET, but than there is password in URL, so it's not the right solution :) Similar problem has been posted to community.jboss.org, but with no response: http://community.jboss.org/message/7150#7150. I'm using JBoss 4.3eap. Any help?

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• Forum achievements on a phpBB3 board?

  - by VIVA LA NWO

  I recently started a new community. The forum software is phpBB3, and so far so good. In an attempt to make my community more unique and interesting, I had to idea of having user achievements. Let me give you a quick run-down. Each user has achievements that they can earn (these will probably be across all users), for example an achievement for when a user hits 1,000 posts, when they upload an avatar, when one of their topics gets 1,000 views and so on. Each achievement has points, for example an achievement like uploading an avatar will be 10 points and reaching 10,000 points will grant 50 achievement points. If anyone here plays World of Warcraft you may be seeing where I'm getting the ideas from. :) What I'm struggling to get my head around though is how exactly to code this... I could keep a record of all users activity and add it to a special database table possibly, and then check via cron every minute or so if any user has met achievement criteria... but then I also want it controllable through the ACP so I can easily add new achievements and change their points etc. My mind is pretty blank when it comes to anything but the most simple things. What I really posted here for was feedback on the idea and how you all think I should go about doing this. The coding part should be pretty simple for me once I get my head around how phpBBB MODs need to be written. Thanks for reading, and I look forward to your replies. :)

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• Is there a best practice for concatenating MP3 Files, adjusting sample rates to match, while preserving original files?

  - by Scott

  Hello overflow community! Does anyone know if there is a "best practice" to concatenate mp3 files to create new files, while preserving the original files? I am working on a CentOS Linux machine, in command line. I will eventually call the command line from a PHP script. I have been doing research and I have come up with a process that I think could work. It combines general advice from different forums, blogs, and sources like this one. So here I go: Create a temporary folder Loop through files to create a new, converted copy, of file into a "raw" format (which one, I don't know. I didn't know "raw" files existed before too long ago. I could use some suggestions on this) Store the path to the temporary files, in the temporary folder, and then loop through the files to concatenate them and then put the new merged file the final "processed directory" Delete the contents of the temporary file with the temporary raw files inside. Convert the final file from "raw" to mp3 and enjoy the finished result I'm thinking that this course of action might be best because I can't necessarily control the quality of the original "source" mp3s. The only other option I could think of would be to create a script that would perform a similar process upon files being added to the system leaving only the files with the "proper" format and removing the original "erroneous" file. Hopefully you can see that I have put some thought into this and that I'm trying to leverage the collective knowledge of this community to choose the best direction. Perhaps there is a better path that I could take? By concatenate, I mean to join together in sequence to create a new audio file from the "concatenated files."

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• Common "truisms" needing correction the most

  - by Charles Bretana

  In addition to "I never met a man I didn't like", Will Rogers had another great little ditty I've always remembered. It went: "It's not what you don't know that'll hurt you, it's what you do know that ain't so." We all know or subscribe to many IT "truisms" that mostly have a strong basis in fact, in something in our professional careers, something we learned from others, lessons learned the hard way by ourselves, or by others who came before us. Unfortuntely, as these truisms spread throughout the community, the details—why they came about and the caveats that affect when they apply—tend to not spread along with them. We all have a tendency to look for, and latch on to, small "rules" or principles that we can use to avoid doing a complete exhaustive analysis for every decision. But even though they are correct much of the time, when we sometimes misapply them, we pay a penalty that could be avoided by understooding the details behind them. For example, when user-defined functions were first introduced in SQL Server it became "common knowledge" within a year or so that they had extremely bad performance (because it required a re-compilation for each use) and should be avoided. This "trusim" still increases many database developers' aversion to using UDFs, even though Microsoft's introduction of InLine UDFs, which do not suffer from this issue at all, mitigates this issue substantially. In recent years I have run into numerous DBAs who still believe you should "never" use UDFs, because of this. What other common not-so-"trusims" do you know, which many developers believe, that are not quite as universally true as is commonly understood, and which the developer community would benefit from being better educated about? Please include why it was "true" to start off with, and under what circumstances it's not true. Limit responses to issues that are technical, where the "common" application of a "rule or principle" is in fact correct most of the time, or was correct back when it was first elucidated, but—in the edge cases, or because of not understanding the principle thoroughly, because technology has changed since it first spread, or applying the rule today without understanding the details behind the rule—can easily backfire or cause the opposite of the intended effect.

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• Issue changing innodb_log_file_size

  - by savageguy

  I haven't done much tweaking in the past so this might be relatively easy however I am running into issues. This is what I do: Stop MySQL Edit my.cnf (changing innodb_log_file_size) Remove ib_logfile0/1 Start MySQL Starts fine however all InnoDB tables have the .frm file is invalid error, the status shows InnoDB engine is disabled so I obviously go back, remove the change and everything works again. I was able to change every other variable I've tried but I can't seem to find out why InnoDB fails to start even after removing the log files. Am I missing something? Thanks. Edit: Pasting of the log below - looks like it still seems to find the log file even though they are not there? Shutdown: 090813 10:00:14 InnoDB: Starting shutdown... 090813 10:00:17 InnoDB: Shutdown completed; log sequence number 0 739268981 090813 10:00:17 [Note] /usr/sbin/mysqld: Shutdown complete Startup after making the changes: InnoDB: Error: log file ./ib_logfile0 is of different size 0 5242880 bytes InnoDB: than specified in the .cnf file 0 268435456 bytes! 090813 11:00:18 [Warning] 'user' entry '[email protected]' ignored in --skip-name-resolve mode. 090813 11:00:18 [Note] /usr/sbin/mysqld: ready for connections. Version: '5.0.81-community-log' socket: '/var/lib/mysql/mysql.sock' port: 3306 MySQL Community Edition (GPL) 090813 11:00:19 [ERROR] /usr/sbin/mysqld: Incorrect information in file: './XXXX/User.frm' 090813 11:00:19 [ERROR] /usr/sbin/mysqld: Incorrect information in file: './XXXX/User.frm' 090813 11:00:19 [ERROR] /usr/sbin/mysqld: Incorrect information in file: './XXXX/User.frm' Its just a spam of the same error until I correct it When it did start after it recreated the log files so it must be looking in the same spot I am.

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• Which Java Service or Daemon framework would you recommend?

  - by blwy10

  I have encountered many different ways to turn a Java program into a Windows Service or a *nix daemon, such as Java Service Wrapper, Apache Commons Daemon, and so on. Barring licensing concerns (such as JSW's GPL or pay dual-license), and more advanced features, which one would you recommend? All I intend to do is convert a simple Java program into a service; I don't need anything fancy, just something that runs as a service or a daemon, so I can start it or stop it in the service manager, or it runs for the lifetime of my *nix uptime. EDIT: I've decided to make this community wiki. I didn't start this question with an intention to find an answer for a problem I really had. I was just doing some reading and researching and chanced upon this question, so I was looking for recommendations and the like. Sorry for not doing this sooner or doing this at first. I didn't know what community wiki was for when I first started, and I completely forgot about this question until now. Many thanks for the answers!

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• Is OpenID too complicated?

  - by John Leidegren

  I'm beginning to seriously doubt the OpenID community despite that fact that it works. I'm in the process of currently evaluating OpenID as an authentication service for 'this' site and while the promises are great, I just can't get it to work. And I'm really lost. I ask of the SO community to help me out here. Give me answers and show me examples so I can leverage this in the way it was meant to be. My scenario is very typical. I want to authenticate users through a specific Google Apps domain. If you have access to this Google Apps domain, then you have access to my web application. Where I get lost, is all the prerequisites and dependencies involved. What is XRD? What is Yadis? Why do I need XRD and Yadis? What do I need to do to deploy OpenID authentication on my website? Also, this is really important to me. When I login to SO, I use my Google Account. When I click the login button I'm presented with this confirmation page. Where I'm granting SO the right to use my Google Account credentials. Somehow, Google knows that it's "Stackoverflow.com" that's asking me if it's okay to login. And I wish to know what manner of control I have over this little text. I intend to deploy OpenID on several different domains but I would prefer if they would all work without having to be individually configured with special parameters, such as secret API keys and what not. However, I don't know for sure if this is a prerequisite of OpenID, that or the Federated Login API that Google provides.

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• Can a pc with a 1.2 ghz dual core run VS 2013? [on hold]

  - by moo2

  Edit: This question is about a tool used for programming, Microsoft Visual Studio 2013. I already read the minimum requirements for VS 2013 before I posted or I wouldn't have asked the question. I searched on the web for an answer for a few hours before posting. Why should I go out and spend $400 on a laptop if I can spend less than $100 and use it to learn how to program? In the context of the question it is clear I was not asking for advice on what laptop to buy and it was also clear I was not asking for someone to walk me through the system requirements of VS 2013. This is a vast community and I was wondering if someone in this vast community would have experience in dealing with my question. In other words has anyone ever tried anything like it? If I had an old computer sitting around I would have tested it. At the moment all I have is a friend's Chromebook I'm borrowing. End Edit. I know the requirements for Microsoft Visual Studio 2013 state 1.6 ghz processor. I'm looking at getting a laptop for school and I found one that is old but cheap and would work for college. The Dell D430 I'm looking at getting has a 1.2ghz Core 2 Duo CPU, 80GB HD, 2GB RAM, and Windows 7 Home Premium. It's refurbished. I can get it for less than most phone's cost and from a Microsoft Authorized Refurbisher. I know it's not a skyrim rig but it's lightweight and can handle being a college laptop and doing word processing. Would Visual Studio 2013 run at all? If it is slower I'm not concerned. I just want to know if it would work and compile my assignments and run them? I'd be using this laptop for doing assignments and learning programming languages not for coding the next social media sensation.

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• virtualbox installing iso Error "could not find a valid v7 on sda"

  - by MountainX

  I decided to try this suggestion to install Android x86 on Virtual Box. I'm following those steps and I'm at #4. I used the android-x86-4.0-RC1-amd_brazos.iso (because I have a ThinkPad that this might be compatible with and it seemed as good as any of the other choices...) I'm getting an endless series of errors: .[numbers] VFS: could not find a valid v7 on sda. .[numbers] VFS: could not find a valid v7 on sda. repeating... For storage, I made a VDI image sized at 4.0 GB (dynamically allocated) attached on SATA Port 0. Background and more details: I'm running Kubuntu 12.04. I installed VirtualBox 4.1.12 after adding deb http://download.virtualbox.org/virtualbox/debian precise contrib to my sources. EDIT: Now I'm wondering if I installed the right package. I verified that I'm running 4.1.12. But I installed it with apt-get install virtualbox instead of the recommended apt-get install virtualbox-4.1. I checked just now and see this: apt-cache search virtualbox virtualbox - x86 virtualization solution - base binaries virtualbox-4.1 - Oracle VM VirtualBox But when I run VirtualBox, I get the Oracle VM VirtualBox Manager version 4.1.12, so I think I'm OK. I did see one minor issue (possibly related to this question) when installing VB, but in my case I don't think it is actually an error at all: * No suitable module for running kernel found [fail] invoke-rc.d: initscript virtualbox, action "restart" failed. VirtualBox installed and seems to be running fine. I just can't get the ISO image to install. The error is as shown above.

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• OpenSolaris / Nexenta problems with NetXen 4-port NIC card (ntxn driver)

  - by ewwhite

  Hello, I'm running NexentaStor Enterprise on an HP ProLiant DL180 G6 server. The onboard NIC interfaces surface as igb0 and igb1 and work well. However, I've added an HP NC375T 4-port network card using the NetXen 3031 chipset. This card should be handled by the ntxn driver in the SUNWntxn package, but that results in "ntxn0: failed to map doorbell" messages upon boot. The network interfaces don't show up. After some research, I found HP's driver package for the card. The release notes for the driver package state: This version of the Driver is supported only on Oracle Solaris 10 5/09 & 10/09. Oracle Solaris 10 5/09 & 10/09 contain an older version of NetXen P3 driver package called SUNWntxn. So, adding another version of NetXen P3 driver package using pkgadd command might result in conflicts with the NetXen driver binary & related files. Users are advised to uninstall native SUNWntxn driver package before installing the new package. The install completes, but I end up with a different set of errors in initializing the card. ifconfig ntxn0 plumb ifconfig: cannot open link "ntxn0": DLPI link does not exist dmesg output: Jan 29 07:20:17 ch-san2 ntxn: [ID 977263 kern.warning] WARNING: Memory not available Jan 29 07:20:17 ch-san2 ntxn: [ID 404858 kern.notice] NOTICE: ntxn0: Mac registration error Trying to manually create the device files: root@ch-san2:/volumes# add_drv -i "4040,100" ntxn ("ntxn") already in use as a driver or alias. Update the driver: root@ch-san2:/volumes# update_drv -f ntxn devfsadm: driver failed to attach: ntxn Warning: Driver (ntxn) successfully added to system but failed to attach Any ideas on how to get this driver working, or should I ditch the card and go with an Intel or something else?

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• How to perform SCP as a Sudo user

  - by Ramesh.T

  What is the best way of doing SCP from one box to the other as a sudo user. There are two servers Server A 10.152.2.10 /home/oracle/export/files.txt User : deploy Server B 10.152.2.11 /home/oracle/import/ User : deploy Sudo user : /usr/local/bin/tester all i want is to copy files from server A to Server B as a sudo user... In order to do this, first i normally login as deploy user on the target server and then switch as a sudo user without password. after that SCP to copy file, this is the normal way i perform this activity... In order to auotmate i have written script #!/bin/sh ssh deploy@lnx120 sudo /usr/local/bin/tester "./tester/deploy.sh" I have generated the private key for deploy user, so it allows me to login as deploy user without password. afterthar the sudo command is executed it will switch the user to tester... after that nothing happens.. i mean the script is not getting executed ... is there any way to accomplish this in a different way...

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• Update BIOS on Sun Fire X4150 server

  - by Massimo

  I have some Sun Fire X4150 servers with a very old BIOS release (1ADQW015), which seems to have some compatibility problems with WMware ESX Server 3.5 and Windows 2008 R2 virtual machines; so I want to update the BIOS on them. The problem: according to this page, if your servers run ELOM (mine do), you first need to update to the latest ELOM release, then to the interim transition release, then finally you can update to the latest one. Ok, I'm willing to do that... but it looks like Sun (now Oracle) will happily let you download the latest firmware DVD (3.3.0), but it will not let you download the transition release (2.0) if you don't have a support contract. Well, I actuall don't care at all about the servers' management controllers (we don't even use them), so upgrading from ELOM to ILOM is totally irrelevant to me; but I need to update the servers' BIOS. So my question is: can I update the servers' BIOS to the latest version without doing the full ELOM-to-ILOM migration, or will this not work (or even make the servers unusable)? Do BIOS versions and SP ones need to be matched, or can one be updated without bothering with the other? Bonus question: if this whole ELOM-to-ILOM thing actually is needed in order to update the BIOS, can that 2.0 CD-ROM be obtained without having a support contract with Sun/Oracle (which we are definitely not going to sign, being that quite old hardware)? Update: I tried upgrading only the BIOS on one of the servers, and it didn't boot anymore. So it really looks like a full firmware upgrade is needed, and the management controller and BIOS versions should be kept in sync. So... where can I find that *&!£%$% 2.0 CD-ROM? Or at least the transition firmware that can be found on it?

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• TeamCity sends inadequate responses after Selenium tests

  - by Dmitriy Sukharev

  I have a TeamCity 7.0.2 at CentOS 6.2 server without X Server. I've installed x11-fonts*, xvfb, firefox, xauth, extracted env. variable DISPLAY=localhost:1, and started xvfb. After that I could start Selenium tests using maven. Tests are executed, but there's an issue with TeamCity. Usually TeamCity starts hehaves absolutely inadequate (it confuses images at the page, sends xml or strange text ampersants and numbers in responses and is a bit slower), also tests are executed 4 times slower (1h 15m) at server than at tester Windows 7-based machine (25m). It worth to notice that tests launch two Jetty servers for tested application (one for REST-services application and another for client). In TeamCity I set JVM command line parameters: -Xms256m -Xmx1224m -XX:MaxPermSize=320m, and Additional Maven command line parameters ends with "-DMAVEN_OPTS=-Xmx1024m" (without quotes). Also both web-services and TeamCity uses the same Oracle server (but different Oracle users). Finally TeamCity and its build agent is at the same server. Server has only 4GB of RAM, but during testing there're 400MB of RAM and 1.2GB of swap. TeamCity and Firefox uses about 65% of CPU during testing. There's no firefox process after end of testing. My knowledge about Selenium is weak. I only know that we use 2.20.0 version of selenium-java maven dependency. Please help me to determine why TeamCity sends wrong responces after Selenium tests. I've tried to give you all information I have, but feel free to ask me for more information.

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• Http-Only cookies in WebLogic: what versions support them/how and why are they supported?

  - by John

  We want to make all cookies set by our webapp http-only. I only have a basic understanding of the benefits of doing this but I'm told by security people that it's a Good Thing (tm) Our app is running under JDK1.6.05 and WebLogic10.3.0 After way too much digging around Oracle's website for documentation, I've found good evidence that the first version of WebLogic to support http-only cookies is 10.3.1. By "support," I mean the cookie-http-only deployment-descriptor element. Before we go about upgrading, I'd be nice to have these questions answered: 1a) Is it accurate that WL10.3.1 is the first version to support http-only cookies and that we're out of luck with 10.3.0? 1b) If we do indeed need to upgrade, is there an easy to do so under Windows? I've heard people mention an "upgrade jar" that you just stick in the classpath but I can't find any mention of this by Oracle. Does an easy way exist, or do we need to do a full-install of the new version? 2) What does the cookie-http-only deployment-descriptor element do when enabled? Will it ensure all cookies set by the application have an http-only=true attribute? Will it do more or less? Is there anything I'll have to do programmatically? 3) Is there anything in general I should know about http-only cookies, getting my web app to take advantage of them, or other security concerns?

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• Opening port 80 in router has no results

  - by Ricardo Pieper

  A friend of mine has a ADSL modem and I need to forward some ports. I have already forwarded the 1521 port (Oracle) and it's working fine. Now I need to forward the port 80. I already set up his IIS bindings to this port, and also forwarded the port like this video shows: https://www.youtube.com/watch?v=DLKD-fyexoo So I think I did everything correctly. The local IP address is also the same as the machine where the IIS server is running. I'm sorry, but I can't post images since i don't have 10 points :( Somehow I can't forward this port, yougetsignal.com keeps saying that the door is closed. When I try to open the port, the Control Panel says me that I have to access the control panel in the 8080 port, because the 80 port will be open. Ok, that's fine. But I'm still able to access it in the 80 port, and when I try to access it in the 8080 port, it doesn't work. I'm trying it with the TPLINK 8816, but I also tried to open it in the Opticom DsLink 279, and it didn't worked (using another machine), I got the exact same results. He has a dynamic IP address, but he is also using No-ip, so I can always access his Oracle database in a certain static address. The 1521 port is open. I also tried to disable the firewall in Windows, but that makes no sense to me, since the router doesn't really open the port 80. Clearly I'm missing something. I have never done it in my life, so I dont know how to proceed. Restarting the router was the first I did, no results. I'm accessing his laptop through TeamViewer, so I'm testing the port outside his local network. Edit: My ISP says that they allow to open ports, and the 1521 port is opened. What could I do to open the 80 port?

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• Replacing all disks in a non-OS RAID 5 volume

  - by molecule

  Hi all, We currently have a server with 8 x HDD slots. It is a HP DL380G5 with a P400 controller. 2 x HDD are in a RAID 1+0 config and this hosts the OS. 6 x HDD are in a RAID 5 config and holds an Oracle DB. Basically the RAID 5 volume is running out of space and we would like to swap all 6 with higher capacity disks. Excuse my ignorance as I am pretty new to this... I believe we will need to backup the data, delete the RAID volume, insert the new disks, recreate the volume, and restore the data. 2 questions: Do we need to worry about the OS partition or is it completely independent so we can simply take out the 6 and insert 6 new disks and get the controller to recognize the 6 new disks and form a new RAID 5 volume? We should not need to reinstall OS or Oracle correct? Since we are going to restore the data on the volume from another source (our vendor will take care of this) but we would like to keep the existing data on the 6 disks just in case we run into issues and want to fall back, is this possible? Thanks in advance.

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• Update BIOS on Sun Fire X4150 server

  - by Massimo

  I have some Sun Fire X4150 servers with a very old BIOS release (1ADQW015), which seems to have some compatibility problems with WMware ESX Server 3.5 and Windows 2008 R2 virtual machines; so I want to update the BIOS on them. The problem: according to this page, if your servers run ELOM (mine do), you first need to update to the latest ELOM release, then to the interim transition release, then finally you can update to the latest one. Ok, I'm willing to do that... but it looks like Sun (now Oracle) will happily let you download the latest firmware DVD (3.3.0), but it will not let you download the transition release (2.0) if you don't have a support contract. Well, I actuall don't care at all about the servers' management controllers (we don't even use them), so upgrading from ELOM to ILOM is totally irrelevant to me; but I need to update the servers' BIOS. So my question is: can I update the servers' BIOS to the latest version without doing the full ELOM-to-ILOM migration, or will this not work (or even make the servers unusable)? Do BIOS versions and SP ones need to be matched, or can one be updated without bothering with the other? Bonus question: if this whole ELOM-to-ILOM thing actually is needed in order to update the BIOS, can that 2.0 CD-ROM be obtained without having a support contract with Sun/Oracle (which we are definitely not going to sign, being that quite old hardware)? Update: I tried upgrading only the BIOS on one of the servers, and it didn't boot anymore. So it really looks like a full firmware upgrade is needed, and the management controller and BIOS versions should be kept in sync. So... where can I find that *&!£%$% 2.0 CD-ROM? Or at least the transition firmware that can be found on it?

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• Enabling JMX for proxool with tomcat

  - by dialt0ne

  I am trying to get proxool's MBeans available so that I can see/manipulate them with jconsole. I have jconsole working, but I don't see anything related to proxool. The system is using Sun Java 1.5.0_17 (I know, I know... I'm working with the developers to upgrade). JMX is enabled by modifying $JAVA_OPTS in my tomcat 5.5 startup script: SJO="$SJO -Dcom.sun.management.jmxremote" SJO="$SJO -Dcom.sun.management.jmxremote.port=4998" SJO="$SJO -Dcom.sun.management.jmxremote.authenticate=false" SJO="$SJO -Dcom.sun.management.jmxremote.ssl=false" JAVA_OPTS="$JAVA_OPTS $SJO" I have proxool configured with JNDI in server.xml: <GlobalNamingResources> <Resource name="jdbc/database" auth="Container" type="javax.sql.DataSource" factory="org.logicalcobwebs.proxool.ProxoolDataSource" user="username" password="password" proxool.driver-url="jdbc:oracle:thin:@fqdn.example.com:1521:MYSID" proxool.driver-class="oracle.jdbc.driver.OracleDriver" proxool.alias="mysid" proxool.maximum-connection-count="20" proxool.statistics="20s,5m,15m" proxool.statistics-log-level="INFO" proxool.jmx="true" proxool.verbose="true" /> </GlobalNamingResources> My test .jsp can run queries and I can see it using the connections with the proxool admin servlet, but I'm unsure if there's more I need to configure in tomcat or proxool to get JMX functioning. Advice? jmxproxy info edit: The jmxproxy servlet is working - when I go to the URL http://tomcatserver.example.com:4999/manager/jmxproxy/?qry=*:type%3DRequestProcessor,* the results are: OK - Number of results: 2 Name: Catalina:type=RequestProcessor,worker=http-8080,name=HttpRequest0 modelerType: org.apache.coyote.RequestInfo bytesSent: 0 requestBytesSent: 0 contentLength: -1 bytesReceived: 0 requestProcessingTime: 1297983483666 globalProcessor: org.apache.coyote.RequestGroupInfo@32dc51c8 requestBytesReceived: 0 serverPort: -1 stage: 0 requestCount: 0 maxTime: 0 processingTime: 0 errorCount: 0 Name: Catalina:type=RequestProcessor,worker=jk-127.0.0.1-8009,name=JkRequest794 modelerType: org.apache.coyote.RequestInfo virtualHost: tomcatserver.example.com bytesSent: 0 method: GET remoteAddr: 172.30.3.51 requestBytesSent: 0 contentLength: -1 workerThreadName: TP-Processor15 bytesReceived: 0 requestProcessingTime: 9 globalProcessor: org.apache.coyote.RequestGroupInfo@1e7d3b8e protocol: HTTP/1.1 currentQueryString: qry=*%3Atype%3DRequestProcessor%2C* requestBytesReceived: 0 serverPort: 4999 stage: 3 requestCount: 0 maxTime: 0 processingTime: 0 currentUri: /manager/jmxproxy/ errorCount: 0 And more to the point http://tomcatserver.example.com:4999/manager/jmxproxy/?qry=Catalina:type%3DEnvironment,resourcetype%3DGlobal,name%3DProxool yields: OK - Number of results: 0

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• Http-Only cookies in WebLogic: what versions support them/how and why are they supported?

  - by John

  We want to make all cookies set by our webapp http-only. I only have a basic understanding of the benefits of doing this but I'm told by security people that it's a Good Thing (tm) Our app is running under JDK1.6.05 and WebLogic10.3.0 After way too much digging around Oracle's website for documentation, I've found good evidence that the first version of WebLogic to support http-only cookies is 10.3.1. By "support," I mean the cookie-http-only deployment-descriptor element. Before we go about upgrading, I'd be nice to have these questions answered: 1a) Is it accurate that WL10.3.1 is the first version to support http-only cookies and that we're out of luck with 10.3.0? 1b) If we do indeed need to upgrade, is there an easy to do so under Windows? I've heard people mention an "upgrade jar" that you just stick in the classpath but I can't find any mention of this by Oracle. Does an easy way exist, or do we need to do a full-install of the new version? 2) What does the cookie-http-only deployment-descriptor element do when enabled? Will it ensure all cookies set by the application have an http-only=true attribute? Will it do more or less? Is there anything I'll have to do programmatically? 3) Is there anything in general I should know about http-only cookies, getting my web app to take advantage of them, or other security concerns?

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• Problems Installing slapd On Ubuntu Server 11.10

  - by Zach Dziura

  I know that there's a Ubuntu-specific StackExchange website, but I thought that I'd ask here because it's a server-specific question. If I'm wrong in my logic... Well, you people are better at this than I am! O=) On with the show! I'm in the process of installing Oracle Database 11g R2 Standard Edition onto Ubuntu Server 11.10. I found a guide on the Oracle Support Forums that walks you through the process fairly easily. Unfortunately, I'm running into issues installing one particular dependency: slapd. When I go to install it, I get this error message: (Reading database ... 64726 files and directories currently installed.) Unpacking slapd (from .../slapd_2.4.25-1.1ubuntu4.1_amd64.deb) ... Processing triggers for man-db ... Processing triggers for ufw ... Processing triggers for ureadahead ... Setting up slapd (2.4.25-1.1ubuntu4.1) ... Usage: slappasswd [options] -c format crypt(3) salt format -g generate random password -h hash password scheme -n omit trailing newline -s secret new password -u generate RFC2307 values (default) -v increase verbosity -T file read file for new password Creating initial configuration... Loading the initial configuration from the ldif file () failed with the following error while running slapadd: str2entry: invalid value for attributeType olcRootPW #0 (syntax 1.3.6.1.4.1.1466.115.121.1.15) slapadd: could not parse entry (line=1051) dpkg: error processing slapd (--configure): subprocess installed post-installation script returned error exit status 1 Errors were encountered while processing: slapd E: Sub-process /usr/bin/dpkg returned an error code (1) After much Google searches and forum trolling, I have yet to find a definitive answer as to what's going wrong. The error messages seem straight forward enough, but I have no idea how to debug this. Can anyone offer some assistance? Again, if I'm asking in the wrong place, I apologize. If I'm indeed asking properly, then thank you for any and all help!

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• SQuirreL Client: Opening up a table in a separate tab

  - by Dalin Seivewright

  I've switched to SQuirrel Client to view an Oracle database with a variety of tables. At any given time, I need to look at the contents of several related tables at the same time. The problem is that, at least by default, SQuirrel Client does not open up multiple tables at a time. When you click on a different Table object, the main view is refreshed with newly selected table data. Oracle's SQLDeveloper (which I am trying to move away from) did this by default if I recall, but there was an option to "freeze" panes. Does a similar option exist in SQuirrel Client? I do not require the ability to view the contents of two different tables on the same screen (i.e. a split view) but I would like the ability to have tabs for each table so I can quickly switch between each table view rather then having to find the table in the table list over and over again. Note: I am using this in a professional capacity but if it does not "belong" here then I suppose it could be moved to superuser.

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• Migrating ODBC information through a batch file

  - by DeskSide

  I am a desktop support technician currently working on a large scale migration project across multiple sites. I am looking at a way to transfer ODBC entries from Windows XP to Windows 7. If anyone knows of a program or anything prebuilt that already does this, please redirect me. I've already looked but haven't found anything, so I'm trying to build my own. I know enough basic programming to read the work of others and monkey around with something that already exists, but not much else. I have come across a custom batch file written at one site that (among other things) exports ODBC information from the old computer and stores it on a server (labelled as y: through net use at the beginning of the file), then later transfers it from the server to a new computer. The pre-existing code is for Windows XP to XP migrations. Here are the pertinate bits of code: echo Exporting ODBC Information start /wait regedit.exe /e "y:\%username%\odbc.reg" HKEY_LOCAL_MACHINE\SOFTWARE\ODBC\ODBC.INI (and later on) echo Importing ODBC start /wait regedit /s "y:\%username%\odbc.reg" We are now migrating from Windows XP to 7, and this part of the batch file still seems to work for this particular site, where Oracle 8i and 10g are used. I'm looking to use my cut down version of this code at multiple sites, and I'm wondering if the same lines of code will still work for anything other than Oracle. Also, my research on this issue has shown that there are different locations in 64 bit operating systems for 32/64 bit entries, and I'm wondering what effect that would have on the code. Could I copy the same data to both parts of the registry, in hopes of catching everything? Any assistance would be appreciated. Thank you for your time.

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