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• Weblogic domain scale up using EM Grid Control 11gR1

  - by dmitry.nefedkin(at)oracle.com

  As you know a weblogic domain consists of set of servers running independently or in a cluster mode, sharing the distributed resources. And in most environments weblogic  cluster consists of multiple managed servers running simultaneously and working together to provide increased scalability and reliability.  These servers can run on the same machine, or be located on different machines.  It's a common task to increase a cluster's capacity by adding new machines to the cluster to host the new server instances.  You can do it by manually installing weblogic binaries to the new host and use pack/unpack commands to add a managed server to this new host.  But with Enterprise Manager Grid Control 11gR1 (EMGC) there is  another way - Fusion Middleware Domain Scale Up  procedure. I'm going to show you how it works.Here is a picture of  my medrec_oradb weblogic domain, what is registered in EMGC. It contains an admin server and a cluster MedRecCluster with  the single managed server MS1. Both admin and managed servers are on the same host oel46-vmware, it's a virtual machine with OEL 4.6 that runs inside our Oracle VM infrastructure.  And here are the application deployments, note that couple of applications are deployed to the cluster.First of all I have to prepare a new machine that will host new managed sever of my cluster. I created new VM with OEL 5.4 using the corresponding Oracle VM template available in Oracle E-Delivery site for Oracle Linux and Oracle VM and named it wls1032. Next step is to install Oracle EM Grid Control 11gR1 Agent to this new host.  You can download it from the OTN page and install it manually,  or you can use Agent Installation Deployment procedure available in EMGC  (Deployments->Agent Installation->Install Agent). Anyway, when you agent is up and running on the new machine, you will see it in EMGC Console in the Targets->Hosts subtab.Now we are ready to scale up our weblogic domain. Click the Deployments tab in Oracle Enterprise Manager Grid Control, and then click Deployment Procedure. Select a Fusion Middleware Domain Scale Up procedure from the list, and click Schedule Deployment. The first page of the FMW Domain Scale Up Wizard is displayed and you can proceed with the deployment process.Select the domain from list, enter the working directory on the admin server host, and also fill the weblogic credentials for the administration server console and the OS credentials for the  admin server host.  Click Next button.  The next step allows you to configure you domain, to add a new manager server to the cluster you should select the cluster in the tree and click Add Server button. Select the newly added server in a tree, choose the target host and  enter the configuration details of your managed server. You can also add new machine and node manager details.  Please note that you cannot change the values in  Domain Location and Fusion Middleware Home fields, so these locations on the target host will be the same as for the admin server host.   Working directory on the target host should have enough free space to store FMW home binaries and domain configuration files.  In my experience the working directories should have at least 3 Gb of free space.  The last thing you should fill is the OS credentials for the target host. The next steps allows you to schedule the execution of the procedure, it is started immediately in my example. The last step is just a review the configuration for the domain scale up. Click Submit to launch the process. You can track the status of the procedure execution by selecting Deployments->Deployment Procedures->Procedure Completion Status in the EMGC Console.As you can see in the picture below, the procedure consists of the many steps, and I'm going to share my experience about the issues that I had at some of the steps. Please keep in mind that you can always continue the execution from the last successfully completed step by clicking Retry button.Check OUI Prerequisites  step may fail if the target host does  not pass prerequisites checks for Weblogic Server installation such as amount of RAM, linux packages installed, etc. Create FMW Clone Archive step may fail if you do not have enough free space in the working directory on the administration server host.Transfer cloning archive to targets  step  may fail if the EMGC agents on the admin server host or on target host are not secured.   You should secure the agent by issuing ./emctl secure agent  command from $AGENT_HOME/bin directory and entering the agent registration password.Both Transfer cloning archive to targets and Apply Clone at target hosts steps may fail if you do not have enough free space in the working directory on the target host. The most complicated issue I had on the Run Inventory Collection  step. The step failed and I noticed that the agent on the target server is also failed with the following error in the $AGENT_HOME/sysman/log/emagent.trc  log file:2010-12-28 11:50:34,310 Thread-2838952848 ERROR upload: Failed to upload file A0000008.xml: Fatal Error.Response received: 500|ORA-20603: The timezone of the multiagent target (/Farm_Localhost_MedRec_medrec_oradb/medrec_oradb,weblogic_domain)is not consistent with the timezone (America/Los_Angeles) reported by other agents.2010-12-28 11:50:34,310 Thread-2838952848 ERROR upload: 1 Failure(s) in a row or XML error for A0000008.xml, retcode = -6, we give up2010-12-28 11:50:35,552 Thread-2838952848 WARN  upload: FxferSend: received fatal error in header from repository: https://oel46-vmware:1159/em/uploadFATAL_ERROR::500|ORA-20603: The timezone of the multiagent target (/Farm_Localhost_MedRec_medrec_oradb/medrec_oradb,weblogic_domain)is not consistent with the timezone (America/Los_Angeles) reported by other agents.2010-12-28 11:50:35,552 Thread-2838952848 ERROR upload: number of fatal error exceeds the limit 32010-12-28 11:50:35,552 Thread-2838952848 ERROR upload: agent will shutdown now2010-12-28 11:50:35,552 Thread-2838952848 ERROR : Signalled to Exit with status 55. Too many fatal upload failures2010-12-28 11:50:35,552 Thread-2838952848 ERROR upload: 1 Failure(s) in a row or XML error for A0000008.xml, retcode = -6, we give up2010-12-28 11:50:35,552 Thread-3044607680 ERROR main: EMAgent abnormal terminatingI checked the timezone of my domain target inside EMGC repositoryselect timezone_regionfrom mgmt_targets where target_type = 'weblogic_domain'  and display_name = 'medrec_oradb'"TIMEZONE_REGION""America/Los_Angeles"Then checked the timezone of my agents and indeed, they differedselect target_name, timezone_region from mgmt_targets where type_display_name = 'Agent'"TARGET_NAME"    "TIMEZONE_REGION""oel46-vmware:3872"    "America/Los_Angeles""wls1032.imc.fors.ru:3872"    "America/New_York"So I had to change the timezone on the wls1032 host and propagate this changes to the agent and to the EMGC repository. Here was the steps:issued system-config-date command on wls1032.imc.fors.ru  and set timezone to "America/Los_Angeles"propagated the changes to the agent bu executing ./emctl resetTZ agent  command from $AGENT_HOME/bin directoryconnected to EMGC repository as sysman and executed the following PL/SQL block:   begin      mgmt_target.set_agent_tzrgn('wls1032.imc.fors.ru:3872','America/Los_Angeles');      commit;   end;After that I had to clear the pending uploads on wls1032.imc.fors.ru:  rm -r $AGENT_HOME/sysman/emd/state/*  rm -r $AGENT_HOME/sysman/emd/collection/*  rm -r $AGENT_HOME/sysman/emd/upload/*  rm $AGENT_HOME/sysman/emd/lastupld.xml  rm $AGENT_HOME/sysman/emd/agntstmp.txt  $AGENT_HOME/bin/emctl start agent  $AGENT_HOME/bin/emctl clearstate agentThe last part of this solution was to resync the agent in EMGC console by clicking Agent Resynchronization button (please leave "Unblock agent on successful completion of agent resynchronization" checkbox checked in the next screen).After that I issued ./emctl upload command from $AGENT_HOME/bin on the wls1032 host,  and my previous error disappeared,  but I catched another one: EMD upload error: Failed to upload file A0000004.xml: HTTP error.Response received: ERROR-400|Data will be rejected for upload from agent 'https://wls1032.imc.fors.ru:3872/emd/main/', max size limit for direct load exceeded [7544731/5242880]So the uploading XML file size was 7 Mb, and the limit on OMS was 5 Mb.  To increase the max file size limit to 20 Mb I had to connect to the OMS host and execute the following commands from $OMS_HOME/bin directory: ./emctl set property -name em.loader.maxDirectLoadFileSz -value 20971520 -module emoms ./emctl stop oms ./emctl start omsAfter that I issued ./emctl upload command from $AGENT_HOME/bin on the wls1032 one more time and it completed successfully.   The agent uploaded the configuration information to the EMGC  repository and I was able to see the results of my weblogic domain scale-up in EMGC Console.DeploymentsSo, now the weblogic cluster contains 2 managed servers located on the different hosts. This powerful feature of the Enterprise Manager Grid Control  is a part of  the WebLogic Server Management Pack Enterprise Edition.

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• How to Assign a Static IP to an Ubuntu 10.04 Desktop Computer

  - by Mysticgeek

  If you have a home network with several computers, assigning them static IP addresses can make troubleshooting easier. Today we take a look at switching from DHCP to a static IP in Ubuntu. Assign a Static IP Using Static IPs prevents address conflicts between machines and can allow easier access to them. If you have a small home network and are satisfied with the machines getting their IP address automatically via DHCP, there won’t be anything gained by using static addresses. Using Static IPs isn’t necessarily for the average user, but if you’re a geek who wants to know the address assigned to each machine, it can allow for faster troubleshooting.  To change your Ubuntu machine to a Static IP go to System \ Preferences \ Network Connections. In our example, we’re on a wired system so click on the Wired tab, then select Auto eth0 and click on Edit. Select the IPv4 settings tab, change Method to Manual, click the Add button. Then type in the Static IP Address, Subnet Mask, DNS Servers, and Default Gateway. Then click Apply when you’re finished. Make sure to hit Enter after typing in the Default Gateway otherwise it will revert back to 0.0.0.0 You’ll need to enter in your admin password before the changes go into affect. To verify the changes have been made successfully launch a Terminal session and type in ifconfig at the command prompt, or follow these directions. You also might want to ping the address from another machine to make sure everything is communicating. If you want to assign a Static IP to your Windows machines, check out our article on how to assign a Static IP on Windows systems (make sure to browse the comments as our readers have some good suggestions).  Whether you have a small office or home network set up with a server and several machines, using a Static IP on each device can help you manage them easily. Again, it isn’t for everyone as it really depends on how your network is setup and the way you use it. Similar Articles Productive Geek Tips Change Ubuntu Desktop from DHCP to a Static IP AddressAllow Remote Control To Your Desktop On UbuntuAssign Custom Shortcut Keys on Ubuntu LinuxKeyboard Ninja: 21 Keyboard Shortcut ArticlesChange Ubuntu Server from DHCP to a Static IP Address TouchFreeze Alternative in AutoHotkey The Icy Undertow Desktop Windows Home Server – Backup to LAN The Clear & Clean Desktop Use This Bookmarklet to Easily Get Albums Use AutoHotkey to Assign a Hotkey to a Specific Window Latest Software Reviews Tinyhacker Random Tips HippoRemote Pro 2.2 Xobni Plus for Outlook All My Movies 5.9 CloudBerry Online Backup 1.5 for Windows Home Server TubeSort: YouTube Playlist Organizer XPS file format & XPS Viewer Explained Microsoft Office Web Apps Guide Know if Someone Accessed Your Facebook Account Shop for Music with Windows Media Player 12 Access Free Documentaries at BBC Documentaries

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• Going back (downgrade) from LibreOffice 4 to LibreOffice 3

  - by MMA

  EDIT This question is not at all a duplicate of How to downgrade from LibreOffice 4.0 to 3.6? The above mentioned question talks about downgrading from a specific version of LibreOffice, namely from 4.0 to 3.6. The solutions mentioned are not the ones I am looking for. They will work but I wanted a general solution without using PPA or downloading .deb files for from a higher version to a lower version. The above solutions suggest either downloading .deb files for LibreOffice 3.6 or adding repository for it. Furthermore, some of the answers put out-of-proportion~(applicable for the solution, however) stress on use of synaptic, not general command-line-solution. That made me wonder, at this very moment, if I take a fresh computer, and install Ubuntu 12.04, LibreOffice installation will work without a hitch. Then why I can not install LibreOffice in my 12.04 machine today from simple command line? This answer to my question, clarified everything. I need to use ppa-purge so that this resets all packages from a PPA to the standard versions released for my distribution. Basically it is like a way to restore my system back to the way it was before my installed packages from a PPA. This article further elaborates the idea. The above mentioned answer worked perfectly for me. Actually, this was an education for me since it taught me how do downgrade a package that was added via PPA. I had upgraded from LibreOffice 3 to LibreOffice 4 using the PPA. Now since I found that LibreOffice 4 has some issues, including handling my native language, I want to move back to LibreOffice 3. In order to accomplish this, I removed the LibreOffice config directory from my home and then purged LibreOffice from my machine. sudo apt-get purge libreoffice-* Then I removed the relevant PPA's using the sudo apt-add-repository --remove command. And then ran sudo apt-get update. Now, when I try to install LibreOffice using the command sudo apt-get install libreoffice I get an avalanche of output about unmet dependencies, something like, The following packages have unmet dependencies: libreoffice : Depends: libreoffice-core (= 1:3.5.7-0ubuntu4) but it is not going to be installed (snipped) If I dig the issue further, by using the command, sudo apt-get install libreoffice-core I get The following packages have unmet dependencies: libreoffice-core : Depends: libreoffice-common (> 1:3.5.7) but it is not going to be installed Depends: libexttextcat0 (>= 2.2-8) but it is not going to be installed Depends: ure (>= 3.5.7~) but it is not going to be installed E: Unable to correct problems, you have held broken packages. Could you please tell me how do I install LibreOffice 3 in my machine? I am using Ubuntu 12.04 LTS.

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• Auto DOP and Concurrency

  - by jean-pierre.dijcks

  After spending some time in the cloud, I figured it is time to come down to earth and start discussing some of the new Auto DOP features some more. As Database Machines (the v2 machine runs Oracle Database 11.2) are effectively selling like hotcakes, it makes some sense to talk about the new parallel features in more detail. For basic understanding make sure you have read the initial post. The focus there is on Auto DOP and queuing, which is to some extend the focus here. But now I want to discuss the concurrency a little and explain some of the relevant parameters and their impact, specifically in a situation with concurrency on the system. The goal of Auto DOP The idea behind calculating the Automatic Degree of Parallelism is to find the highest possible DOP (ideal DOP) that still scales. In other words, if we were to increase the DOP even more  above a certain DOP we would see a tailing off of the performance curve and the resource cost / performance would become less optimal. Therefore the ideal DOP is the best resource/performance point for that statement. The goal of Queuing On a normal production system we should see statements running concurrently. On a Database Machine we typically see high concurrency rates, so we need to find a way to deal with both high DOP’s and high concurrency. Queuing is intended to make sure we Don’t throttle down a DOP because other statements are running on the system Stay within the physical limits of a system’s processing power Instead of making statements go at a lower DOP we queue them to make sure they will get all the resources they want to run efficiently without trashing the system. The theory – and hopefully – practice is that by giving a statement the optimal DOP the sum of all statements runs faster with queuing than without queuing. Increasing the Number of Potential Parallel Statements To determine how many statements we will consider running in parallel a single parameter should be looked at. That parameter is called PARALLEL_MIN_TIME_THRESHOLD. The default value is set to 10 seconds. So far there is nothing new here…, but do realize that anything serial (e.g. that stays under the threshold) goes straight into processing as is not considered in the rest of this post. Now, if you have a system where you have two groups of queries, serial short running and potentially parallel long running ones, you may want to worry only about the long running ones with this parallel statement threshold. As an example, lets assume the short running stuff runs on average between 1 and 15 seconds in serial (and the business is quite happy with that). The long running stuff is in the realm of 1 – 5 minutes. It might be a good choice to set the threshold to somewhere north of 30 seconds. That way the short running queries all run serial as they do today (if it ain’t broken, don’t fix it) and allows the long running ones to be evaluated for (higher degrees of) parallelism. This makes sense because the longer running ones are (at least in theory) more interesting to unleash a parallel processing model on and the benefits of running these in parallel are much more significant (again, that is mostly the case). Setting a Maximum DOP for a Statement Now that you know how to control how many of your statements are considered to run in parallel, lets talk about the specific degree of any given statement that will be evaluated. As the initial post describes this is controlled by PARALLEL_DEGREE_LIMIT. This parameter controls the degree on the entire cluster and by default it is CPU (meaning it equals Default DOP). For the sake of an example, let’s say our Default DOP is 32. Looking at our 5 minute queries from the previous paragraph, the limit to 32 means that none of the statements that are evaluated for Auto DOP ever runs at more than DOP of 32. Concurrently Running a High DOP A basic assumption about running high DOP statements at high concurrency is that you at some point in time (and this is true on any parallel processing platform!) will run into a resource limitation. And yes, you can then buy more hardware (e.g. expand the Database Machine in Oracle’s case), but that is not the point of this post… The goal is to find a balance between the highest possible DOP for each statement and the number of statements running concurrently, but with an emphasis on running each statement at that highest efficiency DOP. The PARALLEL_SERVER_TARGET parameter is the all important concurrency slider here. Setting this parameter to a higher number means more statements get to run at their maximum parallel degree before queuing kicks in.  PARALLEL_SERVER_TARGET is set per instance (so needs to be set to the same value on all 8 nodes in a full rack Database Machine). Just as a side note, this parameter is set in processes, not in DOP, which equates to 4* Default DOP (2 processes for a DOP, default value is 2 * Default DOP, hence a default of 4 * Default DOP). Let’s say we have PARALLEL_SERVER_TARGET set to 128. With our limit set to 32 (the default) we are able to run 4 statements concurrently at the highest DOP possible on this system before we start queuing. If these 4 statements are running, any next statement will be queued. To run a system at high concurrency the PARALLEL_SERVER_TARGET should be raised from its default to be much closer (start with 60% or so) to PARALLEL_MAX_SERVERS. By using both PARALLEL_SERVER_TARGET and PARALLEL_DEGREE_LIMIT you can control easily how many statements run concurrently at good DOPs without excessive queuing. Because each workload is a little different, it makes sense to plan ahead and look at these parameters and set these based on your requirements.

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• Certificate Revocation checking affecting system performance [migrated]

  - by Colm Clarke

  I have a .NET 3.5 desktop application that had been showing periodic slow downs in functionality whenever the test machine it was on was out of the office. I managed to replicate the error on a machine in the office without an internet connection, but it was only when i used ANTS performance profiler that i got a clearer picture of what was going on. In ANTS I saw a "Waiting for synchronization" taking up to 16 seconds that corresponded to the delay I could see in the application when NHibernate tried to load the System.Data.SqlServerCE.dll assembly. If I tried the action again immediately it would work with no delay but if I left it for 5 minutes then it would be slow to load again the next time I tried it. From my research so far it appears to be because the SqlServerCE dll is signed and so the system is trying to connect to get the certificate revocation lists and timing out. Disabling the "Automatically detect settings" setting in the Internet Options LAN settings makes the problem go away, as does disabling the "Check for publishers certificate revocation". But the admins where this application will be deployed are not going to be happy with the idea of disabling certificate checking on a per machine or per user basis so I really need to get the application level disabling of the CRL check working. There is the well documented bug in .net 2.0 which describes this behaviour, and offers a possible fix with a config file element. <?xml version="1.0" encoding="utf-8"?> <configuration> <runtime> <generatePublisherEvidence enabled="false"/> </runtime> </configuration> This is NOT working for me however even though I am using .net 3.5. The SQLServerCE dll is being loaded dynamically by NHibernate and I wonder if the fact that it's dynamic could somehow be why the setting isn't working, but I don't know how I could check that. Can anyone offer suggestions as to why the config setting might not work? Or is there another way I could disable the check at the application level, perhaps a CAS policy setting that I can use to set an exception for the application when it's installed? Or is there something I can change in the application to up the trust level or something like that? I have also tried using to no advantage ServicePointManager.CheckCertificateRevocationList = false; http://rusanu.com/2009/07/24/fix-slow-application-startup-due-to-code-sign-validation/ I have also tried those registry settings out and unfortunately they didn't help. The dlls that appear to be the cause of the hold up are native SQL Server CE dlls, and looking at the stack traces in ProcMon mscorwks.dll doesn't appear to be involved even though the checks on crypto and cert registry keys are being done under the .NET application. It's definitely still something to do with publisher certificate checking because unticking "Check for publisher revocation certificate" still works but something odd is going on.

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• Synching folders other than the default Ubuntu One folder doesn't seem to work on Windows

  - by Gordon

  I have installed Ubuntu One on two machines - one Windows 7 and one Windows XP. I have added a folder from the computer using the "Add Folder" button on the Windows 7 machine. The Ubuntu One dialog box tells me that file synch is finished and up to date. I now have two problems. If I log on to my Ubuntu One account on the web, I can see what appears to be a LINK to the synched folder - I cannot open the folder and see the contents. This is what I see in the Files page of my Ubuntu one account: ~/Documents/Computing/Test On the second machine, after synching is complete, I see the folder but NOT the contents. The folder is EMPTY. Can anyone provide a solution as to a) what is happening and b) how do I get this folder to synch properly on the other locations?

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• Web Platform Installer 2.0 and Visual Studio Web Developer 2010 Express

  - by The Official Microsoft IIS Site

  I was setting up a new machine for presentations and I was getting ready to install Visual Studio 2010 Express   and figured I'd go see if the Web Platform Installer (we call it "Web-P-I") had the new versions of VS2010 ready to go. If you're not familiar, I've blogged about this before. WebPI is a 2meg download that basically sets up your machine for Web Development and downloads whatever you need automatically. It's a cafeteria plan for Microsoft Web Development....(read more)

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• QotD: Peter Wayner on Programming trend No. 1

  - by $utils.escapeXML($entry.author)

  Programming trend No. 1: The JVM is not just for Java anymoreA long time ago, Sun created Java and shared the virtual machine with the world. By the time Microsoft created C#, people recognized that the VM didn't have to be limited to one language. Anything that could be transformed into the byte code could use it.Now, it seems that everyone is building their language to do just that. Leave the job of building a virtual machine to Sun/Oracle, and concentrate your efforts on the syntactic bells and structural whistles, goes the mantra today.Peter Wayner in an article on "11 programming trends to watch" at ITWorld.

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• Setup a vpn server on Ubuntu server, but client can't setup a connection

  - by Jing

  I setup a vpn server using pptpd on the ubuntu server which is installed in a virtual box machine on a windows 7 desktop. I configure the vpn server and port forwarding in the windows. However, I cannot setup a connection to the server. Here's the ubuntu log I got when I tried to connect to this vpn server Anyone can help me solve this problem? Also, is there any alternative way to setup a vpn server on windows or virtual machine installed on windows? Thanks!

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• UBUNTU 12.04 Networking

  - by Fr. Lawrence winslow

  I have installed UBUNTU 12.04 on my Athlon 64-bit Desktop (2GB Memory) in a dual-boot with Win XP. The machine is hardwired to my D-Link N router which uses a DSL Modem to access the Internet. My Home Network was established in the router via the XP machine. When I boot UBUNTU I am able to access the Internet via this set-up but I can neither access the home network nor see the three other laptop computers (wireless access) on the network. These others are running Win Vista, Win 7, and UBUNTU 10.04 (this latter accesses the home network normally). All are visible and accessible when XP is running. I would appreciate thoughts as I am seriously thinking about changing all the computers to UBUNTU but do need to be able to operate the network.

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• Making an Ubuntu installation disc UEFI bootable

  - by skytreader

  I'm trying to install Ubuntu 12.04 on a machine with UEFI (Windows 8). Following Rod Books, I managed to get my system to boot using rEFInd. However rEFInd does not offer me any options to boot from my Ubuntu installer disc. Another thing...after following Rod Books' instructions, my machine greeted me with something along the lines of "The bootloader is not trusted" (my usage of the term "bootloader" is possibly wrong; I'm not well-acquainted with these terms) I got to work around this by setting up some passwords in the BIOS and putting the renamed .efi of rEFInd to the trusted list. While in this screen, it showed me the drives with a possible .efi (among them, the drive S in Rod Books' guide) and one of the drives it showed was my optical drive with an Ubuntu installer. I tried browsing for an .efi in the Ubuntu installer but found none. True enough, at Windows, I searched the drive for an .efi but found none. So how do I make my Ubuntu installer UEFI bootable?

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• Why not Green Threads?

  - by redjamjar

  Whilst I know questions on this have been covered already (e.g. http://stackoverflow.com/questions/5713142/green-threads-vs-non-green-threads), I don't feel like I've got a satisfactory answer. The question is: why don't JVM's support green threads anymore? It says this on the code-style Java FAQ: A green thread refers to a mode of operation for the Java Virtual Machine (JVM) in which all code is executed in a single operating system thread. And this over on java.sun.com: The downside is that using green threads means system threads on Linux are not taken advantage of and so the Java virtual machine is not scalable when additional CPUs are added. It seems to me that the JVM could have a pool of system processes equal to the number of cores, and then run green threads on top of that. This could offer some big advantages when you have a very number large of threads which block often (mostly because current JVM's cap the number of threads). Thoughts?

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• CHM Issue: The page can not be displayed

  - by Narendra Tiwari

  Some times when we access few CHM (compiled HTML) files over network share, CHM content doed not display and shows an error "The Page Can not be displayed". This may be due to a Microsoft security update installed on your machine. Here is the resolution:- ======================================================================== REGEDIT4 [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\HTMLHelp] [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\HTMLHelp\1.x\HHRestrictions] "MaxAllowedZone"=dword:00000001 "UrlAllowList"="" [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\HTMLHelp\1.x\ItssRestrictions] "MaxAllowedZone"=dword:00000001 "UrlAllowList"="" ======================================================================== Put above content in a file and save as with .REG extension, then execute it from your machine. Thats it.. you should be able to view your CHM files. Reference

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• DIY Coffee Table Arcade Hides Retro Gaming Inside

  - by Jason Fitzpatrick

  Last week we showed you a nifty man-cave arcade-in-coffee-table build that was a bit, shall we say, exposed. If you’re looking for a sleek build that conceals its arcade-heart until it’s game time, this clean and concealed build is for you. Courtesy of IKEAHacker reader Sam Wang, the beauty of this build is that other than the rectangle of black glass in the center of the table–which could just as well be a design accent–there is no indication that the coffee table is a gaming machine when not in use. Slide out the drawers and boot it up, however, and you’re in business–full MAME arcade emulation at your finger tips. Hit up the link below to check out his full photo build guide. My DIY Arcade Machine Coffee Table [via IKEAHacker] How To Switch Webmail Providers Without Losing All Your Email How To Force Windows Applications to Use a Specific CPU HTG Explains: Is UPnP a Security Risk?

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• Again WPA Connection problem even after changed to latest version ..please help

  - by Renjith G

  I am using hostapd, wireless tools with madwifi for my wireless ap in my board. The WEP, WPA-PSK connections and communications between my board with linux and my desktop PC, Windows XP SP2 (with Olitec USB wireless) are fine. But when I configured the WPA type, the connection seems established but shows the status "TKIP - Key Absent" in the security dialog box. Anyone faced this problem? Am attaching the conf files and the connection status. In the AP side am complaining . I am using the in built radius server conf with the hostapd 0.4.7 hostapd.conf interface=ath0 driver=madwifi logger_syslog=0 logger_syslog_level=0 logger_stdout=0 logger_stdout_level=0 debug=0 eapol_key_index_workaround=1 dump_file=/tmp/hostapd.dump.0.0 ssid=Renjith G wpa wpa=1 wpa_passphrase=mypassphrase wpa_key_mgmt=WPA-EAP wpa_pairwise=TKIP CCMP wpa_group_rekey=600 macaddr_acl=2 /* commented */ ieee8021x=1 /* commented */ eap_authenticator=1 own_ip_addr=172.16.25.1 nas_identifier=renjithg.com auth_server_addr=172.16.25.1 auth_server_port=1812 auth_server_shared_secret=key1 ca_cert=/flash1/ca.crt server_cert=/flash1/server.crt eap_user_file=/etc/hostapd.eap_user hostapd.eap_user "*@renjithg.com" TLS And the commands am using are wlanconfig ath0 create wlandev wifi0 wlanmode ap iwconfig ath0 essid Renjith channel 6 ifconfig ath0 192.168.25.1 netmask 255.255.255.0 up hostapd -ddd /etc/hostapd.conf Please correct if am wrong .. Also am getting the debug messages on my AP when am connecting in my windows machine through WPA ~/wlanexe # ./hostapd -ddd /etc/hostapd.conf Configuration file: /etc/hostapd.conf Line 18: obsolete eap_authenticator used; this has been renamed to eap_server madwifi_set_iface_flags: dev_up=0 Using interface ath0 with hwaddr 00:0b:6b:33:8c:30 and ssid 'Renjith G wpa' madwifi_set_ieee8021x: enabled=1 madwifi_configure_wpa: group key cipher=1 madwifi_configure_wpa: pairwise key ciphers=0xa madwifi_configure_wpa: key management algorithms=0x1 madwifi_configure_wpa: rsn capabilities=0x0 madwifi_configure_wpa: enable WPA= 0x1 madwifi_set_iface_flags: dev_up=1 madwifi_set_privacy: enabled=1 WPA: group state machine entering state GTK_INIT GMK - hexdump(len=32): 9c 77 cd 38 5a 60 3b 16 8a 22 90 e8 65 b3 c2 86 40 5c be c3 dd 84 3e df 58 1d 16 61 1d 13 d1 f2 GTK - hexdump(len=32): 02 78 d7 d3 5d 15 e3 89 9c 62 a8 fe 8a 0f 40 28 ba dc cd bc 07 f4 59 88 1c 08 84 2b 49 3d e2 32 WPA: group state machine entering state SETKEYSDONE madwifi_set_key: alg=TKIP addr=00:00:00:00:00:00 key_idx=1 Flushing old station entries madwifi_sta_deauth: addr=ff:ff:ff:ff:ff:ff reason_code=3 Deauthenticate all stations l2_packet_receive - recvfrom: Network is down Wireless event: cmd=0x8c03 len=20 New STA WPA: 00:0a:78:a0:0b:09 WPA_PTK entering state INITIALIZE madwifi_del_key: addr=00:0a:78:a0:0b:09 key_idx=0 WPA: 00:0a:78:a0:0b:09 WPA_PTK_GROUP entering state IDLE WPA: 00:0a:78:a0:0b:09 WPA_PTK entering state AUTHENTICATION WPA: 00:0a:78:a0:0b:09 WPA_PTK entering state AUTHENTICATION2 IEEE 802.1X: 4 bytes from 00:0a:78:a0:0b:09 IEEE 802.1X: version=1 type=1 length=0 Wireless event: cmd=0x8c04 len=20 madwifi_del_key: addr=00:0a:78:a0:0b:09 key_idx=0 ioctl[unknown???]: Invalid argument WPA: 00:0a:78:a0:0b:09 WPA_PTK entering state DISCONNECTED WPA: 00:0a:78:a0:0b:09 WPA_PTK entering state INITIALIZE madwifi_del_key: addr=00:0a:78:a0:0b:09 key_idx=0 ioctl[unknown???]: Invalid argument Wireless event: cmd=0x8c03 len=20 New STA WPA: 00:0a:78:a0:0b:09 WPA_PTK entering state INITIALIZE madwifi_del_key: addr=00:0a:78:a0:0b:09 key_idx=0 WPA: 00:0a:78:a0:0b:09 WPA_PTK_GROUP entering state IDLE WPA: 00:0a:78:a0:0b:09 WPA_PTK entering state AUTHENTICATION WPA: 00:0a:78:a0:0b:09 WPA_PTK entering state AUTHENTICATION2 IEEE 802.1X: 4 bytes from 00:0a:78:a0:0b:09 IEEE 802.1X: version=1 type=1 length=0 < Register Fail < Register Fail Wireless event: cmd=0x8c04 len=20 madwifi_del_key: addr=00:0a:78:a0:0b:09 key_idx=0 ioctl[unknown???]: Invalid argument WPA: 00:0a:78:a0:0b:09 WPA_PTK entering state DISCONNECTED WPA: 00:0a:78:a0:0b:09 WPA_PTK entering state INITIALIZE madwifi_del_key: addr=00:0a:78:a0:0b:09 key_idx=0 ioctl[unknown???]: Invalid argument Wireless event: cmd=0x8c03 len=20 New STA WPA: 00:0a:78:a0:0b:09 WPA_PTK entering state INITIALIZE madwifi_del_key: addr=00:0a:78:a0:0b:09 key_idx=0 WPA: 00:0a:78:a0:0b:09 WPA_PTK_GROUP entering state IDLE WPA: 00:0a:78:a0:0b:09 WPA_PTK entering state AUTHENTICATION WPA: 00:0a:78:a0:0b:09 WPA_PTK entering state AUTHENTICATION2 IEEE 802.1X: 4 bytes from 00:0a:78:a0:0b:09 IEEE 802.1X: version=1 type=1 length=0 NOW am getting the following error message with latest tools. *This is the latest error messages..please refer this only..* ~/wlanexe # ./hostapd -ddd /etc/hostapd.conf TLS: Trusted root certificate(s) loaded madwifi_set_iface_flags: dev_up=0 madwifi_set_privacy: enabled=0 BSS count 1, BSSID mask ff:ff:ff:ff:ff:ff (0 bits) Flushing old station entries madwifi_sta_deauth: addr=ff:ff:ff:ff:ff:ff reason_code=3 ioctl[IEEE80211_IOCTL_SETMLME]: Invalid argument madwifi_sta_deauth: Failed to deauth STA (addr ff:ff:ff:ff:ff:ff reason 3) Could not connect to kernel driver. Deauthenticate all stations madwifi_sta_deauth: addr=ff:ff:ff:ff:ff:ff reason_code=2 ioctl[IEEE80211_IOCTL_SETMLME]: Invalid argument madwifi_sta_deauth: Failed to deauth STA (addr ff:ff:ff:ff:ff:ff reason 2) madwifi_set_privacy: enabled=0 madwifi_del_key: addr=00:00:00:00:00:00 key_idx=0 madwifi_del_key: addr=00:00:00:00:00:00 key_idx=1 madwifi_del_key: addr=00:00:00:00:00:00 key_idx=2 madwifi_del_key: addr=00:00:00:00:00:00 key_idx=3 Using interface ath0 with hwaddr 00:0b:6b:33:8c:30 and ssid 'RenjithGwpa' SSID - hexdump_ascii(len=11): 52 65 6e 6a 69 74 68 47 77 70 61 RenjithGwpa PSK (ASCII passphrase) - hexdump_ascii(len=12): 6d 79 70 61 73 73 70 68 72 61 73 65 mypassphrase PSK (from passphrase) - hexdump(len=32): a6 55 3e 76 94 8b d9 81 a1 22 5e 24 29 83 33 86 11 a8 7e 93 19 7c a9 ab ab cc 12 58 37 e5 35 b6 RADIUS local address: 172.16.25.1:1024 madwifi_set_ieee8021x: enabled=1 madwifi_configure_wpa: group key cipher=1 madwifi_configure_wpa: pairwise key ciphers=0xa madwifi_configure_wpa: key management algorithms=0x1 madwifi_configure_wpa: rsn capabilities=0x0 madwifi_configure_wpa: enable WPA=0x1 WPA: group state machine entering state GTK_INIT (VLAN-ID 0) GMK - hexdump(len=32): [REMOVED] GTK - hexdump(len=32): [REMOVED] WPA: group state machine entering state SETKEYSDONE (VLAN-ID 0) madwifi_set_key: alg=TKIP addr=00:00:00:00:00:00 key_idx=1 madwifi_set_privacy: enabled=1 madwifi_set_iface_flags: dev_up=1 ath0: Setup of interface done. l2_packet_receive - recvfrom: Network is down Wireless event: cmd=0x8b1a len=24 Wireless event: cmd=0x8c03 len=20 New STA ioctl[unknown???]: Invalid argument madwifi_process_wpa_ie: Failed to get WPA/RSN IE Failed to get WPA/RSN information element. Data frame from not associated STA 00:0a:78:a0:0b:09 Wireless event: cmd=0x8c04 len=20 Wireless event: cmd=0x8c03 len=20 New STA ioctl[unknown???]: Invalid argument madwifi_process_wpa_ie: Failed to get WPA/RSN IE Failed to get WPA/RSN information element. Data frame from not associated STA 00:0a:78:a0:0b:09 Data frame from not associated STA 00:0a:78:a0:0b:09 Data frame from not associated STA 00:0a:78:a0:0b:09 Wireless event: cmd=0x8c04 len=20 Wireless event: cmd=0x8c03 len=20 New STA ioctl[unknown???]: Invalid argument madwifi_process_wpa_ie: Failed to get WPA/RSN IE Failed to get WPA/RSN information element. Data frame from not associated STA 00:0a:78:a0:0b:09

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• Looking for WAMP Benchmarking (my current WAMP is very slow, so are other solutions)

  - by therobyouknow

  I'm running ZWAMP WAMP stack on my local development machine. However I have found it to be very slow at serving pages from a Drupal site I have setup. By contrast, my live production site on shared hosting is reasonably quick. For me the goal with a local WAMP stack was to develop offline and send completed work to the live production site. I liked ZWAMP because it didn't require adjustments to User Access Control or other permissions. I've looked at Drupal Acquia Development Stack but found this too restrictive: only one site instance/doc root can be installed. I've looked at other DAMP stacks and heard reports of them being slow. My local development machine that I am running the WAMP stack on is a Dual Core 2.6Ghz hyperthreaded Intel i7, 4Gb RAM, 7200rpm hard disk, running Windows 64bit professional. Surely this is fast enough. So I'm looking for: Causes of the slowness of the WAMP and how to improve the speed Benchmark data of various WAMP stacks

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• Bruxelles finance un client BitTorrent décentralisé dans le cadre d'une recherche sur l'amélioration des réseaux informatiques

  La Communauté Européenne finance un client BitTorrent entièrement décentralisé Dans le cadre d'une recherche sur l'amélioration des réseaux informatiques Il est déjà difficile d'expliquer au grand public la différence entre hacker et pirate. On souhaite donc beaucoup de patience et de courage au Professeur responsable du projet Tribler pour expliquer la différence entre BitTorrent et piratage. Il s'agit pourtant d'un projet intéressant à plus d'un titre. Technologiquement, Tribler est un client BitTorrent entièrement décentralisé. Autrement dit, un logiciel qui permet d'échanger des contenus de machine à machine, en gré à gré (ou ...

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• AFP and SAMBA shares are confusing my MacOS X Lion

  - by Pierre

  I've setup my file server running ubuntu 12.04 with AFP/Avahi and Samba shares. Simple configuration, nothing too complicated. I've given my AFP machine a different name than %h to avoid confusion when looking into my Finder. However, my mac os lion mbp still confuses the two and the only way to access the AFP shares is via direct connect to IP address. The samba machine name seems to be hardwired to hostname (I can only see that that workgroup can be changed). Is there anything I am missing or obvious that I need to set? Best regards and thank you in advanced Pierre

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• The HTG Guide To Speeding Up Your Virtual Machines

  - by Chris Hoffman

  Virtual machines are demanding beasts, providing virtual hardware and running multiple operating systems on your computer at once. Upgrading your hardware (particularly your RAM and CPU) will always help speed up virtual machines, but there’s more you can do. These tips will help you squeeze every last drop of performance out of your virtual machine, whether you’re using VirtualBox, VMware, Parallels, or any other virtual machine program. How To Create a Customized Windows 7 Installation Disc With Integrated Updates How to Get Pro Features in Windows Home Versions with Third Party Tools HTG Explains: Is ReadyBoost Worth Using?

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• Domain forwarding with url substitution in the address bar

  - by Mario Duarte

  Hello, I have a blog being served by a machine I have at home. Since the ip can change i set up a dyndns domain to always point to that machine. However, I purchased a more friendly domain (at godaddy.com) and I would like to forward it to that blog. The problem is that if I simply forward it the users will see the dyndns domain in the address bar and could potentially bookmark those urls and that's a problem. I noticed that godaddy.com has domain masking and although it does hide the dyndns domain in the address bar, it also keeps the same root address in the address bar even if I navigate to another page. I also have the feeling that search engines will not like this domain masking thing. Does anyone know how can I accomplish what I want?

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• How to get Cinnamon working in Virtualbox?

  - by kavoura

  I installed Ubuntu 11.10 (32-bit) in VirtualBox 4.1.8. I wanted to install Cinnamon, so I did and I have the option to choose it from the login screen, as well as GNOME options. If I choose Ubuntu I get Unity, which works fine. GNOME also works. But when I choose Cinnamon, the screen goes black and nothing responds and I have to reset the virtual machine. I have already installed Ubuntu 11.10 (64-bit) onto the PC in a separate partition (currently running 10.10 but trying out 11.10) and in that Cinnamon works perfectly. In VirtualBox I have 3D settings enabled and gave the virtual machine 128 MB graphics RAM, and 1024 MB system RAM. What settings should I change or what should I do to get Cinnamon working in Ubuntu in VirtualBox? I have also tried doing it in LinuxMint 12, but I get the same problem, just a black screen when selecting Cinnamon. So are Cinnamon and VirtualBox incompatible?

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• Symantec Adds Deduplication to Backup Software

  Backup Exec and NetBackup get new data dedupe features, along with better virtual machine protection and archiving and replication capabilities.

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• The PC Architecture: A Platform for Robotics and Industrial Control

  Industrial systems integrate Windows with real-time functionality such as machine vision and motion control Robotics - Personal computer - Companies - Industrial - Robot

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• Installing Forms and Reports on a development system

  - by Duncan Mills

  By popular demand I've resurrected / updated one of the old blog postings from Jan Carlin's Blog on GroundSide here. A recent (lengthy) post on the Forms forums chronicles the problems some of you have had installing F&R on a development machine. See the link in the headline of this post for the main one. When installing, here are some points to bear in mind: Download and install Weblogic Server first. http://www.oracle.com/technology/software/products/middleware/index.htmlFind the Forms and Reports (and Disco and Portal) zip files here. Download them to the desktop (or some other temporary directory of your choosing). Unzip both of the two zip files into the same new directory (maybe called 'stage') and check that you have 4 directories in the stage dir when you are finished unzipping: 'Disk1', 'Disk2', 'Disk3' and 'Disk4'. These folders are specified in the zip file structure and must be preserved for the setup executable to work. If you use WinZip and have a right click menu option that say "Extract to here", use that by right click-dragging the zip file onto the newly created directory. Don't use the "Extract to folder %HOME%\Desktop\ofm_pfrd...disk_1of2" option. That will get you into the trouble that was reported early in this thread. Free up as much memory as you can. Stop services and background processes and virus scanners and databases (you don't need a DB to install Forms) and other things lurking about on your machine. You can restart them when the install is done. Around 1.5 GB free real memory should do it. If it doesn't, free up more if you can. Don't change the swap space unless you know what you are doing. Let Windows handle it. A 1 GB machine will likely not be enough. You will likely need at least 2GB of RAM.Start the install with setup.exe from the 'Disk1' directoryChoose the Install and Configure option unless you have a good reason not to.Choose a unique instance name even if you deinstalled and removed the last install. I suggest using 'asinst_20090722_1' (today's date in ISO format with a running incremented number at the end if you install more than two times on a particular day).Unselect Portal and Discoverer and select the Builders you want.Unselect WebCacheUnselect OHS.Unselect the single sign-on option Check for any failures and choose the retry option if any occur. If that doesn't fix the problem, call Oracle Customer Support .

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• IDC Analyst Report Touts Oracle–Accenture Strategic Initiative

  - by kristin.jellison

  Hi there, partners! Oracle Engineered Systems have been getting some love lately, and we want to share it with you! The market intelligence and advisory firm IDC recently released a report lauding Oracle and Accenture’s strategic initiative to route the performance and flexibility of Oracle Engineered Systems to clients. The report, "Oracle and Accenture Strategic Alliance Places Big Bet on Engineered Systems,” by Steve White, reflects a largely positive analysis of the relationship. White notes that the alliance is “one of the largest in the industry.” Under the relationship, Accenture has incorporated Oracle Engineered Systems—including Oracle Exadata Database Machine, Oracle Exalogic Elastic Cloud, Oracle SuperCluster, and Oracle Exalytics In-Memory Machine—into its leading datacenter transformation consulting services. Together, the two companies have also created bespoke platforms, such as the Accenture Foundation Platform for Oracle, which helps clients accelerate deployments on Oracle Fusion Middleware, running Oracle Exalogic Elastic Cloud and Oracle Exadata Database Machine. Oracle Engineered Systems deliver a single, engineered platform—including server to storage and networking. This makes it easier and cheaper for Accenture clients around the world to prepare their datacenters for managing, processing and analyzing the massive amounts of data they (rightly) anticipate seeing in the next decade. The new solutions can help reduce the effort and cost to migrate any vendor database to an Oracle Engineered Systems platform, which can lower the cost of ownership by up to 50 percent. For its part, Accenture has built a team of 300 consultants to implement and increase the flexibility and stability of client datacenters. This move further expands one of the fastest-growing full-service Oracle Enterprise solutions. Over 52,000 Accenture consultants are qualified to implement, upgrade and outsource the Oracle product suite. Accenture is a Diamond-level member of Oracle PartnerNetwork (OPN). For Oracle Partners, this update should give you at least two things to walk away with. First, this initiative is showing signs of success. As Marty Cole, group chief executive for Accenture’s Technology growth platform, put it, “We are seeing an increasing number of clients recognizing the value of consolidating their databases and taking advantage of the cost and performance benefits delivered by these solutions.” The pipeline is there—and not just for Accenture. Use this example to show your clients that investments in Oracle Engineered Systems are on the rise. Second, recognize that Oracle Engineered Systems represent one of the biggest platforms for growth that Oracle has to offer partners. As part of the agreement, Accenture is able to provide: Platform Readiness Assessments Platform Implementation App Rationalization Database Rationalization Managed Services These are all enablement opportunities you can offer customers under Oracle’s partner programs —to continue building the value of their investments, and the value of your relationship with Oracle. Take a read through the IDC report. To learn more about the partnership, see this press release. Happy selling! The OPN Communications Team

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