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• What is the lease irriating printer manufacturer?

  - by aireq

  Currently I have a Lexmark all in one printer/scanner which has some of the worse drivers I've seen for a printer. The installation takes forever. Then once it's installed the printer will only work if I keep the "Lexmark Productivity Studio" running in my system tray. Then later after I've scanned something 99% of the time the "Save to PDF" button doesn't do anything when I click it. It is also a wireless printer, but of course the only way to set any of the wireless settings is during the driver setup. So if my WEP key changes then I have to go off and reinstall the entire printer driver. Lately I tried refilling one of the ink cartridges with a key I bought off amazon, and now both the printer and the drivers keep complaining about being out of "Official Lexmark Ink" This comic from The Oatmeal pretty much sums up my feelings about consumer printers and their drivers. This question is, of course, pretty subjective but I'd like to know what (if any) consumer printer brands actual provide quality drivers and software with their printers.

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• Unable to install Android for Windows 7 because JDK is not found

  - by user1294663

  I have JDK SE7u4 installed in windows 7. I tried to install Android on Windows 7 using the installer_r18-windows.exe but no avail. The setup window showed the message saying that the Java SE JDK not found and ERROR: Failed to find Java version for C:\Windows\System32\java.exe The system cannot found the file specified. If you believe you have a JDK installed and it was not properly recognized, simply set an environment variable JAVA_HOME to point to it I right clicked on Computer Properties Advanced System Settings Environment variables. I created a NEW system variable called JAVA_HOME and set the value as C:\Program Files\Java\jdk1.7.0_04\bin or C:\Windows\System32\java.exe. I ran the installer again — the same error message still appeared.

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• set up re-direct for lan clients to local t&c page

  - by tb2571989

  Hi, I'm trying to set up something on my network so that when users connect and try and use the internet they are re-directed to a locally-hosted terms and conditions and policy page. Once they click "accept" then they will be passed through to their homepage, otherwise if they decline then the window will close or show them an error message. I've spent a while looking into this and am wondering if it's possible to do witout having to setup/add to a firewall. Otheriwse let me know what my options are and I can pass it on. Many Thanks Tom

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• Using VirtualBox/VMWare to deploy software to multi sites ?

  - by Sim

  Hi all, I'm currently evaluating the feasibility of using VirtualBox (or VMWare) to deploy the follow project to 10 sites Windows XP MSSQL 2005 Express Edition with Advanced Services JBoss to run 1 in-house software that mostly query master data (customers/products) and feed to other software Why I want to do this ? Because the IT staffs in my 10 sites are not capable enough and the steps taken to setup those "in-house project" are also complicated What are the cons I can forsee ? Need extra power to run that virtualbox instance The IT staffs won't be much knowledgeable 'bout how to install the stuffs Cost (license for VirtualBox in commercial environment as well as extra OS license) I really seek your inputs on the pro/con of this approach, or any links that I can read further Thanks a lot

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• 12-24 rack, 10-32 server thumbscrew. How to mount?

  - by JJ.

  We have just purchased a APC rack (model AR204A) with 12-24 threaded holes. We couldn't get a "square hole" model in time for our setup deadline. Unfortunately our rack servers (Lenovo RD240) appear to have 10-32 thumbscrews for securing the server to the rack. We've successfully mounted the server rails to the rack using 12-24 screws however the 10-32 thumbscrews in the server front won't "grab" the 12-24 holes in the rack, thus there is nothing to stop the server from sliding right off the rack if pushed from the back. The thumb screws on the server don't seem to be removable, so we can't simply use 12-24 screws instead. Any suggestions on how to work around this problem? Is there any way to "convert" a 12-24 hole to a 10-32 thread (or similar approach)? Thanks in advance.

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• How to run multiple distros using lvm

  - by Mark

  I've seen quite a few posts around about running multiple distros but not sure they apply to using LVM (and without Windows). I'm using a machine that's about 3 years old. Setup: Intel Core i7 2.8GHz 8GB Ram 1TB SATA HDD At this point, I'd like to install 12.10 and Mint 14, leaving the option open to install additional distros down the road. I could be way off, but I'm thinking about creating at least 2 primary /boot partitions (1 for 12.10 and 1 for Mint) and another partition for LVM leaving room for additional /boot partitions. Then creating a VG and separate LVs for Ubuntu 12.10 and Linux Mint 14. I understand I can share partitions between the 2 installs, but I'm only using this for testing and I have tons of space to play with. LVM seemed logical considering I may want to install and test additional distros. I guess I could share the /swap partition across the board without problems, right? I'm unclear about GRUB2. How do I handle the bootloader situation? Install 12.10 and get it running then make changes to grub.cfg after installing Mint? And do I not install GRUB for Mint or do I install it in a different location? Any guidance would be appreciated.

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• Running Android emulator inside a Virtualbox Vm

  - by sgargan

  I'm trying to setup a VM with a complete android development stack (SDK, Platforms, Eclipse etc) for a Hackathon. I'm having real trouble getting the emulator to start in the VM. I realize that the emulator is essentially a VM itself inside the Vbox VM and so is going to be slow, but it just hangs at the Android splash screen and never gets any further. Might there be something going on with the VM that is causing it to run so very slowly? Is there anything I can do to give the VM more CPU? I've tried setting the execution cap to 100% but it didn't help any. Anyone know what might be going on here, or have any ideas about how I might speed it up? Thanks Steve.

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• Using MongoDB + Redis + Apache on the same server in production?

  - by Dayson

  I intend to launch my web app using a 8 GB VPS. It uses MongoDB + Redis for storage/caching and Apache + PHP-FPM for serving requests. Could there be any issues with running Mongo + Redis + Apache on the same server? Would it make more sense to setup 2 x 4 GB VPS servers and keep Mongo on one and Redis + Apache on another? Should I just start with one server and worry about scaling horizontally later by delegating the existing server to Mongo in the future (due to its large RAM) and moving the web servers on to multiple smaller VPS'?

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• Laptop connecting to Wifi but not to internet

  - by eddard stark

  My friends laptop is able to connect to the wifi router . Typing 192.168.1.1 in the browser shows the login page for the router . But he cannot connect to the internet. This is true on both windows and linux (dual booting setup) . There are 3 other laptops connecting to the internet via wifi just fine and his was fine too until this happened all of a sudden . I tried doing a tracert from windows to an external ip . The first hop to the modem is fine but then the packets seem to be getting dropped . If his wifi adapter is damaged how is it connecting to the modem via wifi . I havent asked a question here before but this is really weird . If anyone needs any more information I shall post it here.

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• design for supporting entities with images

  - by brainydexter

  I have multiple entities like Hotels, Destination Cities etc which can contain images. The way I have my system setup right now is, I think of all the images belonging to this universal set (a table in the DB contains filePaths to all the images). When I have to add an image to an entity, I see if the entity exists in this universal set of images. If it exists, attach the reference to this image, else create a new image. E.g.: class ImageEntityHibernateDAO { public void addImageToEntity(IContainImage entity, String filePath, String title, String altText) { ImageEntity image = this.getImage(filePath); if (image == null) image = new ImageEntity(filePath, title, altText); getSession().beginTransaction(); entity.getImages().add(image); getSession().getTransaction().commit(); } } My question is: Earlier I had to write this code for each entity (and each entity would have a Set collection). So, instead of re-writing the same code, I created the following interface: public interface IContainImage { Set<ImageEntity> getImages(); } Entities which have image collections also implements IContainImage interface. Now, for any entity that needs to support adding Image functionality, all I have to invoke from the DAO looks something like this: // in DestinationDAO::addImageToDestination { imageDao.addImageToEntity(destination, imageFileName, imageTitle, imageAltText); // in HotelDAO::addImageToHotel { imageDao.addImageToEntity(hotel, imageFileName, imageTitle, imageAltText); It'd be great help if someone can provide me some critique on this design ? Are there any serious flaws that I'm not seeing right away ?

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• HP Pavilion 15 with AMD dual graphics - Ubuntu live environment not starting

  - by creepus

  I've had this laptop for about a day now and have decided to try Ubuntu on it and determine if I want to install it. I created a USB, it booted (Secure Boot was on, I tried with Secure Boot off to no effect), and then the problem occurred. The screen turned off for a second, turned back on to a black screen, shut off again and turned back on with a dialogue box telling me that the system had to use low-graphics mode. I clicked OK, selected low-graphics mode from the menu and clicked OK. The screen switched to the boot messages and did not go any further than this. Ctrl+Alt+DEL started rebooting the laptop though. I tried booting again, but this time I edited the boot options in GRUB to add nomodeset. This time, the laptop only booted to a black screen. Ctrl+Alt+F2 took me to a prompt, I tried startx from there, but X didn't start, complaining that it wanted kernel mode setting back. I can not seem to find any option to disable one graphics chip or the other in the UEFI setup menus. Laptop : HP Pavilion 15-E004AU. The CPU : AMD A6-4400M APU with Radeon(tm) HD Graphics The graphics chip : AMD Radeon HD 7520G + 8670M Dual Graphics. The Ubuntu version : 13.10, 64 bit. Thanks. EDIT: I tried 12.04.3 LTS, it managed to bring the desktop up. There are severe graphics glitches after about two minutes though.

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• Technicolor TG582n with external DHCP server [on hold]

  - by Jack

  We have a small home setup with a Technicolor TG582n on Plusnet ISP. We have a Samba4 DC with DNS forwarding enabled. The DC forwards to the Technicolor. However, the client machines have their DNS settings manually set. This is an annoyance when using laptops on other networks. We would like to have DHCP handled on the server machine, such that when a client connects to the Technicolor, it gets its IP and DNS information from the DHCP server, eliminating the need to manually set adapter DNS settings. However, I cannot find an option to disable DHCP on the Technicolor and am not completely clear on how one would point DHCP services to the server from the Technicolor if there were the option. So, how would one make the Technicolor use an external server for DHCP leases?

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• Baffling Exchange 2010 issue , Outlook 2003

  - by Nick Weber

  Recently we upgraded from Exchange 2003 to Exchange 2010. The Exchange 2003 server is still up and active with a handful of users still there we are planning on migrating. Also we have mobile devices and a Blackberry BES server setup publishing to Exchange 2010 public folders free busy. The unfortunate issue is majority of our clients are still Outlook 2003. The issue seems to be hit and miss but sometime clients cannot view other client’s calendars. They get (cannot refresh free/busy) when they add another user and check their available times. This is also true with booking resources (conference rooms) . One thing we noticed is that the Blackberry BES seems to have created its own free/busy folders, so we have some users who use the BES on free/busy folder and other users who don’t use the BES on other free/busy folders. If any of the clients log-in via “Exchange 2010” web-access or with a Outlook 2007 client they can view the calendaring just fine. Thanks for your help Nick @Toshana

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• PostgreSQL RAID configuration

  - by Yoldar-Zi

  I'm stuck how best to configure disk array. We have Hp P2000 G3 disk array with 24 SAS physical disks 300Gb each. We need to configure this array got 2 copies of PostgreSQL 9.2 because two different system. As we know it's recommended to store database and transaction logs(pg_xlog) files on separate disks. So we must setup 4 logical disk: 2 for transaction logs with RAID 1 2 for database with RAID 10 Is this right scheme of distribution? Or may be it is best to just make one big RAID 10 with 4 logical disks?

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• Using EC2 instance as main development platform

  - by David

  My problem I am working as a consultant for various companies. Each company provides me with a laptop where with their software on and I also have my own where I have my development environment. I tend to buy a new laptop every second year and find myself spending lots of time configuring and installing software. I also sometimes spend a lot of time waiting for my laptop to process things. To solve all these issues, I am now considering using EC2 (running windows instances) as my main development platform and just access this from any PC I happen to be at. I calculated that running the High-CPU On-Demand Instances (medium) for 8 hours a day for a year costs me 580$, which is acceptable. I imagine that when I approach the workplace each day, I will make a single click my phone to fire up the instance, so it is ready when I get to work. I should have different icons on my phone to fire up the various instance types. The same software should of course automatically be loaded on the various hardware (sometimes I would even need their instance with 68.4 GB of memory). Another advantage is that if I am having a specific problem with my instance, I could fire up another instance and have someone look into the problem and update the image. My question: Does anyone have experience with such a setup on EC2? What kind of problems do you forsee?

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• ubuntu pptp connections from command line

  - by Ian R

  I'm using a lot of vpn connections daily for my work and I want to program a pptp dialer in python to ease my job a little bit by automating things. I usually go with network-manager-pptp to setup my connections but I would like to skip this gui tool and do it from the script. Something like a dialer. My question is. Can pptp connections be established using the command tools only? Also, where does network-manager-pptp saves its failes so I can take a look and see what configs it generates. Any help is much appreciated.

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• Proftpd user-auth with mod_sql/mod_sql_passwd

  - by Zae

  I'm reading up how to interface ProFTPd with MySQL for an implementation I'm working on, I noticed it seems like all the example code or instructions I see have the user login field in MySQL set as "varchar(30)". I don't see anything saying there's a limit to the field length for ProFTPd, but I wanted to check around anyway. The project this setup is going to get mixed into was planning to have their universal usernames support "varchar(255)". Can I use that safely? or is there an FTP limitation elsewhere I'm missing? Running ProFTPd 1.3.4a(custom compiled), MySQL 5.1.54(ubuntu repos)

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• Windows Server vs Sharing

  - by Mark Lawrence

  Not sure if this is the right place for this question. I have a friend that owns a small business running 3 local machines, that are connected to the internet, and a server that each local machine connects to. He has recently bought a newer server, and by server I mean a Windows Vista box. He wants to use this purely to store data that the 3 local machines can access, kind of like a glorified external hard drive. Im suggesting to fore-go the server option and simply setup sharing on the 'server' box. Interested in hearing any suggestions as to whether the server idea is preferable?

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• Can GoogleApps exist with Exchange 2003

  - by Adam M.

  I am looking at the next step in our Groupware solutions. Rather got with a conventional add a new MS Server/MS Exchange to allow for growth and expanding offices. Could an Office operate with both an existing Exchange server setup and migrate a portion of mailboxes to the GoogleApps platform? I want to see if the we could use the GoogleApps for managers and larger mailboxes, and leave a large amount of small mailboxes on the existing hardware that is configured for Exchange/outlook? Can the two co-exist in an longterm configuration, where they can 'play nice' together? Is there any options that would allow for for this and would this have limitations? Such as the Free/busy connectors (Calendaring)? Is there any pitfalls for this type of design? Thanks

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• Too many heap subpools might break the upgrade

  - by Mike Dietrich

  Recently one of our new upcoming Oracle Database 11.2 reference customers did upgrade their production database - a huge EBS system - from Oracle 9.2.0.8 to Oracle Database 11.2.0.2. They've tested very well, we've optimized the upgrade process, the recompilation timings etc.  But once the live upgrade was done it did fail in the JAVA component piece with this error: begin if initjvmaux.startstep('CREATE_JAVA_SYSTEM') then * ORA-29553: classw in use: SYS.javax/mail/folder ORA-06512: at "SYS.INITJVMAUX", line 23 ORA-06512: at line 5 Support diagnosis was pretty quick - and refered to:Bug 10165223 - ORA-29553: class in use: sys.javax/mail/folder during database upgrade But how could this happen? Actually I don't know as we have used the same init.ora setup on test and production. The only difference: the prod system has more CPUs and RAM. Anyway, the bug names as workarounds to either decrease the SGA to less than 1GB or decrease the number of heap subpools to 1. Finally this query did help to diagnose the number of heap subpools: select count(distinct kghluidx) num_subpools from x$kghlu where kghlushrpool = 1; The result was 2 - so we did run the upgrade now with this parameter set: _kghdsidx_count=1 And finally it did work well. One sad thing:After the upgrade did fail Support did recommend to restore the whole database - which took an additional 3-4 hours. As the ORACLE SERVER component has been already upgraded successfully at the stage where the error did happen it would have been fine to go on with the manual upgrade and start catupgrd.sql script. It would have been detected that the ORACLE SERVER is upgraded already and just picked up the non-upgraded components. The good news:Finally I had one extra slide to add to our workshop presentation

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• virtual box upgrade

  - by Husni

  I did upgrade virtualbox from 4.1 to 4.2 wheneverver I want to load my win xp vdi, it gives me the following error: "Kernel driver not installed (rc=-1908) The VirtualBox Linux kernel driver (vboxdrv) is either not loaded or there is a permission problem with /dev/vboxdrv. Please reinstall the kernel module by executing '/etc/init.d/vboxdrv setup' as root. If it is available in your distribution, you should install the DKMS package first. This package keeps track of Linux kernel changes and recompiles the vboxdrv kernel module if necessary." I ran the suggested step to reinstall the kernel module, and the log file files is as follow: Makefile:181: * Error: unable to find the sources of your current Linux kernel. Specify KERN_DIR= and run Make again. Stop. Makefile:181: * Error: unable to find the sources of your current Linux kernel. Specify KERN_DIR= and run Make again. Stop. Makefile:181: * Error: unable to find the sources of your current Linux kernel. Specify KERN_DIR= and run Make again. Stop. I still unable to re-run my win virtual XP vdi file. anyone have a clue?

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• Shutdown issue on persistent LiveUSB

  - by John K

  A) Downloaded Ubuntu to a Windows 7 temp directory from: http://www.ubuntu.com/download/ubuntu/download (Ubuntu 11.10 - Latest version / 32-bit). The output was a .iso file. B) Created a bootable USB stick using Universal USB Installer: http://www.pendrivelinux.com/universal-usb-installer-easy-as-1-2-3/. Did not select "Persistent file". Result: Tried it in a Dell Latitude D630 Dell laptop: works every time, many startups and shutdowns. C) Repeated B) but with "Persistent file" set. Works once or twice, but then, just locks on the Ubuntu splash screen. E) Downloaded LiveUSB Install from http://live.learnfree.eu/download, which created a file on Windows 7 called live-usb-install-2.3.2.exe. F) Ran the above installer with "Persistent file" to a 4GB ScanDisk (formatted) thumb drive. Result: Worked pretty good for a while. Shutdown and rebooted several times. Changed items like creating a new directories - all worked. Then: Setup an Admin account with a password and no auto login. On next reboot, it required the password and logged in correctly. Tried to shutdown via the top left icon - Shutdown menu option. Key issue: Would not shutdown, but would always go back to the login prompt. Could successfully login. Finally, shutdown (which just put me back to the login window), and hard shutdown with the power switch. Result: On reboot, just locks on the Ubuntu splash screen. Questions (note, very new to Linux): Did I shutdown wrong (I mean prior to the hard power off)? Is the persistence option very unstable, or am I doing something else completely wrong?

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• what are security implications of running Ubuntu inside Windows 7?

  - by EndangeringSpecies

  I am thinking of switching to Ubuntu as a way of making web browsing more secure. So, suppose I will go the easy route and run Ubuntu as an app inside Windows and then run Firefox inside of that. What will this do to the security given the current threat environment? E.g. do most online threats nowadays target the browser and flash (which presumably would be safely sandboxed inside easy to wipe Ubuntu environment) or do they target the Windows TCP-IP stack where Ubuntu would give no protection? Well, most likely the above question does not come near to covering all the security implications of this setup :-), so please do discuss whatever other issues that may be relevant here.

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• Postfix/dovecot remove LDAP user

  - by dove221

  I have to remove or blacklist an LDAP/dovecot user. The authentication is setup from active directory what I cannot manage so I thought there should be a way at least to disable this specific user on the mailserver locally. # Virtual Accoutns - LDAP - MS AD virtual_mailbox_maps = ldap:/etc/postfix/ldap_mailbox_maps.cf virtual_alias_maps = ldap:/etc/postfix/ldap_alias_maps_redirect_true.cf ldap:/etc/postfix/ldap_alias_maps_redirect_false.cf ldap:/etc/postfix/ldap_mailbox _groups.cf virtual_mailbox_domains = domain.com virtual_uid_maps = static:1000 virtual_gid_maps = static:1000 virtual_transport = dovecot dovecot_destination_recipient_limit = 1 Anybody knows how to do it? I followed this guide for disabling 1 user through postfixes access file: http://www.cyberciti.biz/faq/howto-blacklist-reject-sender-email-address/ Unfortunately it doesn't work. It's like the settings stored in LDAP are overruling the access rule. Instead of postfix rejecting the mail it keeps accepting it. Thanks!

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• Ensure Payroll Success with PeopleSoft Year-End Training for U.S. and Canada

  - by Breanne Cooley

  Year-end payroll processing and reporting is a requirement for your business. If you're responsible for completing these processes in either Canada or the United States using the PeopleSoft Payroll application, and if you're new to PeopleSoft Payroll or to performing these processes, consider enrolling in Oracle University's expert training. Our PeopleSoft Payroll specialists will guide you through the necessary steps to ensure you can smoothly and successfully perform your job. Training is specific to the country for which you are performing the processing and reporting. Training lasts one day and is delivered in our Live Virtual Class Format, which helps you avoid travel during this busy season. Here's the training we recommend: PeopleSoft Year-End Payroll - U.S. This course teaches you how to complete U.S. year-end processing and reporting using PeopleSoft Payroll for North America, step-by-step. Update tax reporting setup tables and update employees' income and tax records. Load each employee's year-end data into a single year-end record for processing and reporting.  Identify reports needed to reconcile the year-end data. Correct tax balances and other data as necessary. Generate final print and online W-2 forms and prepare the electronic file for the Social Security Administration.  Enter corrected W-2 information and print a W-2c form. Report periodic retirement distributions and related tax withholding amounts on form 1099-R.   Please Note: this course is intended for organizations using PeopleSoft release 8.81 or higher. PeopleSoft Year-End Payroll – Canada This course covers the steps necessary to perform Canadian year-end processing using Oracle's PeopleSoft Payroll for North America. Explore adjustments, balances, year-end slip processing, common pitfalls and errors and balancing reports.  Produce accurate year-end reporting results such as T4, T4A, RL-1 and RL-2.  Please Note: this course is intended for organizations using PeopleSoft release 8.81 or higher. See you in class! -Oracle University Marketing Team 

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