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• Windows 8 keeps signing out

  - by bill weaver

  Ran into a strange problem with Windows 8 Pro. Last night i installed Windows 8 Pro as an upgrade on a Sony Vaio laptop that had Windows 7 Pro on it. The install seemed to go okay. Then once installed, live tiles seem to work, native/Metro apps will start okay, but pretty soon after going into an app or settings, the screen flashes a few times and we're back to the lock screen. Signing in appears to do a full login. I've tried this with a local account and with a live.com account. This is someone else's laptop, so we decided to let it breathe, in case the install was still settling in. Well, they say today it's doing the same thing. Open the music app, and within a minute it's back to signon/lock screen. However, they can go to the actual Desktop and run Zune to play music, and it seems happy. In the past, i've installed retail Windows 8 Pro clean on a homebrew system, as an upgrade on a Dell laptop with a zillion apps and drivers, neither with any problems. Also, i've had the consumer preview and release candidate installed as well, no problems. Any ideas on what's going on here?

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• Broken Python installation on CentOS 5.8

  - by Beckett

  I already searched for solution to my problem via Google and stackoverflow's search facility, but haven't found anything related specifically to it. Here's the problem: I needed python 2.7.3 on CentOS 5.8 machine which has only python 2.4.3 preinstalled. Also neither there's the suitable version in it's repositories nor I can upgrade installed version. That's why I decided to build python from source code. But I've made a mistake: instead of make altinstall I did make install thus changing default version of the current installation. It was before I found this article - How to install Python 2.7.3 on CentOS 6.2 . I guess 5.8 and 6.2 versions aren't different to the extent this article is inapplicable. After installation of new python version I installed pip, but once I tried to invoke it, I got "No module named pkg_resources" error. In order to solve this issue I installed setuptools from repository. But it had only led to another error: "Distribution Not Found". My final step was to follow the guide I posted the link to, but I was unable to perform last step: easy_install-2.7 virtualenv command threw "-bash: /usr/local/bin/easy_install-2.7: .: bad interpreter: Permission denied" error. Now when I try to invoke pip or pip-2.7 both commands raise the same error with different names of binaries after "-bash:". Is there any way to fix this problem, so I could install new python version (2.7.3) alongside with the preinstalled one (2.4.3) according to the guide? Any help will be appreciated. P.S.: yum is working fine, although it needs python to function, so I hope the damage I unknowingly caused isn't very severe. Also I'm not a native English speaker, so I apologize for possible occasional grammatical and/or spelling errors.

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• Percona-server time out on /etc/init.d/mysql start

  - by geekmenot

  Every time I start mysql, using /etc/init.d/mysql start or service mysql start, it always times out. * Starting MySQL (Percona Server) database server mysqld [fail] However, I can get into mysql. Just wanted to know if there is a problem with the install because it happens all the time, not a one off error. mysql-error.log shows: 121214 11:25:56 mysqld_safe Starting mysqld daemon with databases from /data/mysql/ 121214 11:25:56 [Note] Plugin 'FEDERATED' is disabled. 121214 11:25:56 InnoDB: The InnoDB memory heap is disabled 121214 11:25:56 InnoDB: Mutexes and rw_locks use GCC atomic builtins 121214 11:25:56 InnoDB: Compressed tables use zlib 1.2.3 121214 11:25:56 InnoDB: Using Linux native AIO 121214 11:25:56 InnoDB: Initializing buffer pool, size = 14.0G 121214 11:25:58 InnoDB: Completed initialization of buffer pool 121214 11:26:01 InnoDB: Waiting for the background threads to start 121214 11:26:02 Percona XtraDB (http://www.percona.com) 1.1.8-rel29.2 started; log sequence number 9333955393950 121214 11:26:02 [Note] Server hostname (bind-address): '0.0.0.0'; port: 3306 121214 11:26:02 [Note] - '0.0.0.0' resolves to '0.0.0.0'; 121214 11:26:02 [Note] Server socket created on IP: '0.0.0.0'. 121214 11:26:02 [Note] Slave SQL thread initialized, starting replication in log 'mysql-bin.005163' at position 624540946, relay log '/data/mysql/mysql-relay-bin.000043' position: 624541092 121214 11:26:02 [Note] Slave I/O thread: connected to master '[email protected]:3306',replication started in log 'mysql-bin.005180' at position 823447620 121214 11:26:02 [Note] Event Scheduler: Loaded 0 events 121214 11:26:02 [Note] /usr/sbin/mysqld: ready for connections. Version: '5.5.28-29.2-log' socket: '/data/mysql/mysql.sock' port: 3306 Percona Server (GPL), Release 29.2

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• Under FreeBSD, can a VLAN interface have a smaller MTU than the primary interface?

  - by larsks

  I have a system with two physical interfaces, combined into a LACP aggregation group. That LACP channel has two VLANs, one untagged (the "native vlan") and one using VLAN tagging. This gives us: lagg0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500 options=19b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,TSO4> ether 00:25:90:1d:fe:8e inet 10.243.24.23 netmask 0xffffff00 broadcast 10.243.24.255 media: Ethernet autoselect status: active laggproto lacp laggport: em1 flags=1c<ACTIVE,COLLECTING,DISTRIBUTING> laggport: em0 flags=1c<ACTIVE,COLLECTING,DISTRIBUTING> vlan0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500 options=3<RXCSUM,TXCSUM> ether 00:25:90:1d:fe:8e inet 10.243.16.23 netmask 0xffffff80 broadcast 10.243.16.127 media: Ethernet autoselect status: active vlan: 610 parent interface: lagg0 Is it possible to set a 9K MTU on lagg0 while preserving the 1500 byte MTU on vlan0? Normally I would simply try this out, but this is actually on a vendor-supported platform and I am loathe to make changes "behind the back" of their administration interface. This system is roughly FreeBSD 7.3.

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• Intermittent extrememly long response times when downloading documents

  - by pap

  I have a Java web application running om Tomcat 7 with an Apache httpd 2.2 fronting with mod_jk/AJP. One part of the application is serving files (up to 4mb size). Now, normally this all runs very smooth with stable, low response-times. However, in rare instances (<0.1% of downloads), the downloadtime will go beyond 1 minute. After activating the ThreadStuckValve in Tomcat, I can see that the long responses seem to be stuck at org.apache.tomcat.jni.Socket.sendbb(Native method) i.e network I/O. At most, these long-running downloads take 5 minutes, which I strongly suspect is because of the default 300 second timout in Apache 2.2 (http://httpd.apache.org/docs/2.2/mod/core.html, "TimeOut directive"). To me, this looks like network problems. The Apache timeout (if that is what is kicking in at the 5 minute mark) indicates that ACK packets are not being transmitted correctly. My questions are what could be causing this? Closed browser at receiving end but socket not signaled as closed properly? Packet loss or some other network failure in transit? Where would I start troubleshooting this? We're running Tomcat and Apache on Windows server 2008-R2 in a vmware virtualized server.

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• Inactive users in windows server after some time according to first login instead of defining a solid expiration date

  - by smhnaji

  We want to give access to some Windows Server users so they can remotely have access to our server and download from a special folder of the server. The licenses we give to users, are time base. There should be 1 month, 2 month, ..., 1 year, ... licenses. CURRENT SITUATION (WHAT I DON'T WANT): When users are created and added to the OS, a solid expiration date is given. WHAT I WANT: Users' expiration date should be calculated automatically after first login. The user might not need his account right when purchases the license. In another words: When a license of the user we create is purchased at Jan 1st, he should use the license until Feb 1st. No matter whether he really logs in or not. He cannot come Feb 5th and begin using his license because that has expired then. What I want is that when he comes at Feb 5th and begins using, the license update until March 5th. CLARIFICATION (Update after MDMarra's comment) Working environment is Windows Server 2012. By the word 'user', I mean Native Windows Server Users. Whenever a new person purchases a license with me, I create them manually using net user command like this: net user ali pass /add /expires:2013-12-25

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• Windows 2003 DC to Windows 2008 R2 DC with same name and same IP

  - by TheCleaner

  Environment = Windows 2003 native domain with 8 DCs I've got an old domain controller that is running 2003, CA Enterprise role, DHCP, DNS, a few GPO scripts that point to shares on it, and some other minor functions. All our servers point to it as their primary DNS, and there's lots of references to its IP or name throughout the domain at this point (8+ years later). I really don't feel like manually changing all of this, it would be a pretty massive undertaking. I want to follow this guide: http://msmvps.com/blogs/acefekay/archive/2010/10/09/remove-an-old-dc-and-introduce-a-new-dc-with-the-same-name-and-ip-address.aspx to hopefully end up with basically an "in-place upgrade" so to say. I considered just doing a P2V of the box, but we don't really want to keep it around running 2003 to be honest. I also considered using a CNAME and adding a 2nd IP (the old one) but again, it seemed like it would be cleaner using the attached link. My actual question: Any gotchas or big caution signs when doing what the link suggests? Anyone gone down this road and have advice on how to proceed?

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• What does "incoming" and "outgoing" traffic mean?

  - by mgibsonbr

  I've seen many resources explaining how to set up a server's firewall to allow incoming and outgoing traffic on HTTP standard ports (80 and 443), but I can't figure out why I would need either of them. Do I need to unblock both for a "regular" web site to work? For file uploads to work? Are there situations where it would be advisable to unblock one and leave the other blocked? Sorry if that's a basic question, but I couldn't find it explained anywhere (also I'm not a native english speaker). I know in a "regular" web site the client is always the one who initiates a request, so I'm assuming a web server must accept incoming traffic on those ports, and my common sense tells me the server is allowed to send a response without unblocking anything else (otherwise it wouldn't make sense to have two types of rules). Is that correct? But what is an outgoing web (service) traffic, and what would be its use? AFAIK if the server wanted to initiate a connection with another machine, the specific port that matters is the one in the other end (i.e. the destination port would be 80), on its end any free port could be used (the source port would be random). I can open HTTP requests from my server (using wget for instance) without unblocking anything. So I'm assuming my concepts of "incoming" and "outgoing" are wrong somehow.

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• Toshiba Satellite P755D USB 3.0 Drivers Missing - Windows 7 Professional

  - by nicorellius

  I bought a Toshiba Satellite P755D recently and installed Windows 7 Professional on the machine. It runs great. But I noticed the exclamation point in the yellow triangle icon in the Device Manager next to the Universal Serial Buss (USB) Controller (I'm assuming this is the USB 3.0 controller because mine doesn't recognize devices). Normally, when this kind of thing happens I go to the manufacturer's website and download appropriate drivers and call it a day. But not this time... I browsed to my model and found no driver for the USB 3.0 controller. I tried other HW and Utility drivers, thinking they would be bundled. No luck. I tried looking up the motherboard in my machine. Generic name, no luck. I then called Toshiba technical support and they tried basic troubleshooting, eg, uninstall device, reboot, for auto-installation; no luck. I popped the Windows 7 disk back in and tried to get information that way, no luck. Finally, the technical support guy said he would look into the engineer's system to see if there was a specific driver available and that's where I'm at. The technician told me that these USB 3.0 drivers come within the native driver pack in windows but that doesn't seem to be the case. Any ideas? EDIT - See attached screen shots.

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• Windows 8 x64 with VMWare Workstation or inside ESXi

  - by Dommer

  I need to run several virtual machines on a core i7-920 box with 12GB or RAM and a 256GB SSD to host the VMs. It also has a Highpoint RocketRaid 2720SGL RAID controller with a 12TB RAID 5 array. I want one of my VMs to run Windows 8 x64, to have access to the RAID array as a native disk (not as networked drives and it needs to run at full speed) and to be able to send files quickly across the network. Initially I thought I'd try to do this using ESXi 5, but I have been unable to find any working RAID drivers for the RR2720SGL and it is not on the HCL for ESXi 5. In light of this, I have installed Windows 8 x64 on the hardware and am thinking of installing VMWare Workstation and running my VMs inside there. I guess my questions are these: How does VMWare Workstation 9 perform compared to ESXi 5? In the real world I mean? Presumably installing Win 8 as the host OS will give me way better performance for that Win 8 machine than Win 8 running under ESXi? I should stick with Windows 8 x64 as the host OS, right? If I install a domain controller VM inside my Win 8 box and join the Win 8 machine to that domain, am I insane (I would guess the Win 8 machine wouldn't see the domain controller until it finished starting everything up, but I don't think that matters)?! is it feasible to give metrics like this and if so, what is the likely value of x? 25%? 50%? 75%? Win 8 under ESXi runs x% as fast as Win 8 installed bare metal.

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• Server Recovery from Denial of Service

  - by JMC

  I'm looking at a server that might be misconfigured to handle Denial of Service. The database was knocked offline after the attack, and was unable to restart itself after it failed to restart when the attack subsided. Details of the Attack: The Attacker either intentionally or unintentionally sent 1000's of search queries using the applications search query url within a couple of seconds. It looks like the server was overwhelmed and it caused the database to log this message: Server Specs: 1.5GB of dedicated memory Are there any obvious mis-configurations here that I'm missing? **mysql.log** 121118 20:28:54 mysqld_safe Number of processes running now: 0 121118 20:28:54 mysqld_safe mysqld restarted 121118 20:28:55 [Warning] option 'slow_query_log': boolean value '/var/log/mysqld.slow.log' wasn't recognized. Set to OFF. 121118 20:28:55 [Note] Plugin 'FEDERATED' is disabled. 121118 20:28:55 InnoDB: The InnoDB memory heap is disabled 121118 20:28:55 InnoDB: Mutexes and rw_locks use GCC atomic builtins 121118 20:28:55 InnoDB: Compressed tables use zlib 1.2.3 121118 20:28:55 InnoDB: Using Linux native AIO 121118 20:28:55 InnoDB: Initializing buffer pool, size = 512.0M InnoDB: mmap(549453824 bytes) failed; errno 12 121118 20:28:55 InnoDB: Completed initialization of buffer pool 121118 20:28:55 InnoDB: Fatal error: cannot allocate memory for the buffer pool 121118 20:28:55 [ERROR] Plugin 'InnoDB' init function returned error. 121118 20:28:55 [ERROR] Plugin 'InnoDB' registration as a STORAGE ENGINE failed. 121118 20:28:55 [ERROR] Unknown/unsupported storage engine: InnoDB 121118 20:28:55 [ERROR] Aborting **ulimit -a** core file size (blocks, -c) 0 data seg size (kbytes, -d) unlimited scheduling priority (-e) 0 file size (blocks, -f) unlimited pending signals (-i) 13089 max locked memory (kbytes, -l) 64 max memory size (kbytes, -m) unlimited open files (-n) 1024 pipe size (512 bytes, -p) 8 POSIX message queues (bytes, -q) 819200 real-time priority (-r) 0 stack size (kbytes, -s) 8192 cpu time (seconds, -t) unlimited max user processes (-u) 1024 virtual memory (kbytes, -v) unlimited file locks (-x) unlimited **httpd.conf** StartServers 10 MinSpareServers 8 MaxSpareServers 12 ServerLimit 256 MaxClients 256 MaxRequestsPerChild 4000 **my.cnf** innodb_buffer_pool_size=512M # Increase Innodb Thread Concurrency = 2 * [numberofCPUs] + 2 innodb_thread_concurrency=4 # Set Table Cache table_cache=512 # Set Query Cache_Size query_cache_size=64M query_cache_limit=2M # A sort buffer is used for optimizing sorting sort_buffer_size=8M # Log slow queries slow_query_log=/var/log/mysqld.slow.log long_query_time=2 #performance_tweak join_buffer_size=2M **php.ini** memory_limit = 128M post_max_size = 8M

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• How to create an alias for a named SQL Server instance

  - by Svish

  On my developer computer I have an SQL Server instance named *developer_2005*. In the resource setting files of a C# application we are creating, the instance name is set to foobar (not really, but just as an example). So when I run the application (in debug or realease) it tries to connect to an SQL Server on localhost, named foobar. I am wondering if it is possible to create an alias or something like that, so that the application actually finds an SQL Server on localhost named foobar, but it is actually connecting to the instance named *developer_2005*. The connection string in the config file of the application is Data Source=localhost\foobar;Initial Catalog=barfoo;Integrated Security=True with provider name System.Data.SqlClient. If I change localhost\foobar to *localhost\developer_2005* then the application can connect like it should. How can I create an alias so that I won't have to change the string in the file? I tried, in SQL Server Management Studio, to create a Server Registration with registered server name "localhost\developer", but this didn't seem to do any good. Not even sure what that really did... But then I discovered SQL Server Configuration Manager\SQL Native Client COnfiguration\Aliases. And I kind of assume this is where the solution lies. But I can't quite figure out how to add a new one... When creating a new one, I have to provide Alias Name, Port No, Protocol and Server, and I don't really have a clue what to put in either of them.

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• Building PHP For MacOS

  - by Eray

  I was using XAMPP and decided to uninstall it and use MacOS' in-built apache and php modules. But while uninstalling XAMPP I deleted /usr/bin/php files and other PHP-CLI files accidentally. And I decided to install newest version of PHP (5.5.12) instead of rebuilding current version (5.4.24). Downloaded it and unzip. After this executed this command as mentioned at this guide. ./configure '--with-apxs2=/usr/sbin/apxs' '--enable-cli' '--with-config-file-path=/etc' '--with-zlib=/usr' '--enable-bcmath' '--with-bz2=/usr' '--enable-calendar' '--disable-cgi' '--with-curl=/usr' '--enable-dba' '--enable-ndbm=/usr' '--enable-exif' '--enable-fpm' '--enable-ftp' '--with-gd' '--enable-gd-native-ttf' '--enable-mbregex' '--with-mysql=mysqlnd' '--with-mysqli=mysqlnd' '--with-pear' '--with-pdo-mysql=mysqlnd' '--with-mysql-sock=/var/mysql/mysql.sock' '--with-tidy' '--enable-wddx' '--with-xmlrpc' '--enable-zip' make make install When i check phpinfo() , it's still version 5.4.24 . This line from my httpd.conf LoadModule php5_module libexec/apache2/libphp5.so /usr/libexec/apache2/libphp5.so coming from old version and i couldn't ind libphp5.so for new version. There is no libphp5.so file inside modules dir. How can i use new PHP build with Apache ? UPDATE Results of php -v command . PHP 5.5.12 (cli) (built: May 27 2014 05:17:21) Copyright (c) 1997-2014 The PHP GroupZend Engine v2.5.0, Copyright (c) 1998-2014 Zend Technologies

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• Setup: Eclipse in Ubuntu with Apache2 and Subversion

  - by Ricalsin

  Trying to setup Eclispe. I am running ubuntu 10.10 (Maverick). Apache2.2.16 Subversion 1.6.12 The Eclipse help/about/installed software says: Eclipse Platform 3.5.2 Subclipse 1.0.0 Version Control with Subversion 1.1.1 The Subclips wiki I followed is here I have installed the libsvn-java app as discussed. I added the line "-Djava.library.path=/usr/lib/jni" to the eclipse.ini file I checked the Eclipse help/about/confirguration settings and both of these lines are listed: eclipse.vmargs=-Djava.library.path=/usr/lib/jni java.library.path=/usr/lib/jni I checked that those files are in those directories. Still, when I check the preferencesteamsvn an error dialog shows: Failed to load JavaHL Library. These are the errors that were encountered: no libsvnjavahl.1 in java.library.path Incompatible JavaHL library loaded 1.3.x or later required I followed the "Testing JavaHL libraries" troubleshooting section at the bottom of the wiki: I downloaded the tarbal and ran it in a folder on my desktop with no problems. Then, I followed the instructions and placed that file INSIDE the path (usr/lib/jni/testJavaHL) and ran it from there. There are 50 tests performed and each one of them came back with this same error (posting only one for brevity): 50) testCommitRevprops(org.tigris.subversion.javahl.BasicTests)java.io.FileNotFoundException: /usr/lib/jni/testJavaHL/local_tmp/greek_files/iota (No such file or directory) at java.io.FileOutputStream.open(Native Method) at java.io.FileOutputStream.<init>(FileOutputStream.java:209) at java.io.FileOutputStream.<init>(FileOutputStream.java:160) at org.tigris.subversion.javahl.WC.materialize(WC.java:70) at org.tigris.subversion.javahl.SVNTests.buildGreekFiles(SVNTests.java:303) at org.tigris.subversion.javahl.SVNTests.setUp(SVNTests.java:222) at org.tigris.subversion.javahl.RunTests.main(RunTests.java:111) FAILURES!!! Tests run: 50, Failures: 0, Errors: 50 Any ideas as to how/why the "local_tmp/greek_files/iota" is appended to the directory? I assume that's my problem.. I'm also having a problem with newrepository location = ...as the directory location of my svn repository is one level above the home directory - which is prepended to whatever I place in the dialog box - resulting in this error: svn: '/home/ricalsin/file:/home/svn' does not exist Thank you for any help.

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• Creating security permissions for a non-domain-member user in Windows Server 2008

  - by Overhed

  Hello everyone, I apologize in advance for incorrect use of terminology, as I'm not an IT person by trade. I'm doing some remote work via a VPN for a client and I need to add some DCOM Service security permissions for my remote user. Even though I'm on the VPN, the request for access to the DCOM service is using my PCs native user (and since I'm running Vista Home Premium it looks something like: PC-NAME\Username). The request for access comes back with access denied and I can not add this user to the security permissions as it "is not from a domain listed in the Select Location dialog box, and is therefore not valid". I'm pretty stuck and have no clue what kind of steps I need to do here. Any help would be appreciated, thanks in advance. EDIT: I have no control over what credentials are being passed in to the server by my computer. This scenario is occurring in an installation wizard that has a section which requests you point it to the machine running the "server" version of the software I'm installing (it then tries to invoke the relevant COM service, but my user does not have "Remove Activation Permissions" on that service, so I get request denied).

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• Converting PDF eBooks into a Kindle format

  - by Ender

  Over the past couple of years I've amassed quite a collection of guides, tutorials and ebooks in PDF format. A lot of these are quite useful for work, especially PDF documentation, and rather than have to be at a computer every time I want to read how to do something in Sitecore or to read through a software testing ebook I'd like to do it on my brand-spanking-new Kindle. However, even though there is now a native PDF reader on the Kindle due to the nature of PDF's they are practically unreadable. The text doesn't wrap due to how PDF's are sized and so far after a bunch of Google searches I've yet to find a viable solution to get my PDF's converted into a readable Kindle format. Sometimes these books have code or pictures/tables in them, but most of the time they're text-heavy and to be honest I'd be surprised if there wasn't a free tool to handle the converting of PDF to one of the (seemingly many) Kindle formats. So, can anyone help me out with this? EDIT: I've tried Calibre, and have checked their forums to play with some of the advanced settings, yet the solutions available seem to be extremely poor, especially if the book you're attempting to read contains equations, code, or anything outside of plain text. I've also tried Amazon's conversion service, which wasn't much help with such documents. The best way I have found so far is to build the entire thing over again in ePub or RTF format and convert to MOBI from there. This works for text-heavy books with tables, but anything technical still isn't covered. Can anyone help with this?

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• How to reproduce the behavior of Mac OS X's dead keys on Windows 7?

  - by Pascal Qyy

  I'm French, but I've chosen to take a QWERTY keyboard for my MacBook Pro for many reasons: first of all, the AZERTY keyboard is not at all ergonomic because it has no numeric keypad, and I must use MAJ or CAPS LOCK to access to the numeric keys ; secondly, I've bought this mac for development ; and chars {, }, etc., are not directly accessible on the Apple AZERTY keyboard the last thing is that: the diacritics are VERY easy to produce on an Apple keyboard with Mac OS X : ? + c for a ç, for example, and many dead keys easy to use (e.g. ? + e, then e give you an é. So, I have no difficulties to write in my native language with this keyboard under Mac OS X. BUT, when I boot on Windows 7's Boot Camp partition, or when I use applications from it through VMware Unity, it is no longer the same comfort! Without numeric keypad, it's impossible to use it for produce specials characters (e.g.: Alt + 0231 for the ç) I've tried many solutions, like auto replacement in Microsoft Office (e.g.: ,,c being replaced by ç), but for all my diacritics, I must type a space, then a back space before the replacement work. I've also tried third party software, as Texter, but it is very buggy and don't work properly (or don't work at all) in many case! So, is there a solution somewhere, to have this Mac OS X's nice and comfortable way of producing diacritics for Windows 7? Thank in advance for your help and your time!

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• dom0 enable IPv6 for guests

  - by user98651

  I am looking at deploying IPv6 to my virtual machines. Right now I have v6 working great on the dom0 using a 6in4 provided by Hurricane Electric as I do not have native v6. However, I would like to distribute some of the /48 I am receiving to the domUs (/64 per machine would be ideal, but I am open to your suggestions). Static configuration on the domU side is fine. All I want to accomplish is getting the traffic to pass through the dom0 to the domU. To say the least, I'm still trying to wrap my head around all the virtual interfaces and bridges Xen creates. Yes, I have Googled around for this a bit and have not found anything great. I tried using two "vif-route6" bash scripts with no luck (possibly due to my ignorance with Xen networking). I am still stuck (mainly in how to configure the dom0). I would like to imagine this problem is relatively easy to solve and I look forward to your suggestions and help! Edited post to clarify my end goal: getting IPv6 to domU guests. I am completely open to suggestions but am hoping for something other than setting up a tunnel for every guest.

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• Fresh 12.04 Install - mySQL not starting

  - by Lee Armstrong

  I have a freshly installed Ubuntu 12.04 x64 server and I installed Percona server from their official repositories. Trouble is it will not start! mysql-error.log shows nothing obvious. 121129 12:16:54 mysqld_safe Starting mysqld daemon with databases from /var/lib/mysql/ 121129 12:16:54 [Note] Plugin 'FEDERATED' is disabled. 121129 12:16:54 InnoDB: The InnoDB memory heap is disabled 121129 12:16:54 InnoDB: Mutexes and rw_locks use GCC atomic builtins 121129 12:16:54 InnoDB: Compressed tables use zlib 1.2.3 121129 12:16:54 InnoDB: Using Linux native AIO 121129 12:16:54 InnoDB: Initializing buffer pool, size = 12.0G 121129 12:16:54 InnoDB: Completed initialization of buffer pool 121129 12:16:54 InnoDB: highest supported file format is Barracuda. 121129 12:16:55 InnoDB: Waiting for the background threads to start 121129 12:16:56 Percona XtraDB (http://www.percona.com) 1.1.8-rel29.1 started; log sequence number 1598476 121129 12:16:56 [Note] Server hostname (bind-address): '0.0.0.0'; port: 3306 121129 12:16:56 [Note] - '0.0.0.0' resolves to '0.0.0.0'; 121129 12:16:56 [Note] Server socket created on IP: '0.0.0.0'. 121129 12:16:56 [Note] Event Scheduler: Loaded 0 events 121129 12:16:56 [Note] /usr/sbin/mysqld: ready for connections. Version: '5.5.28-29.1-log' socket: '/var/run/mysqld/mysql.sock' port: 3306 Percona Server (GPL), Release 29.1 121129 12:16:56 [Note] Event Scheduler: scheduler thread started with id 1 And the syslog shows... Nov 29 12:17:07 V-PF-SQL1 /etc/init.d/mysql[2206]: 0 processes alive and '/usr/bin/mysqladmin --defaults-file=/etc/mysql/debian.cnf ping' resulted in Nov 29 12:17:07 V-PF-SQL1 /etc/init.d/mysql[2206]: #007/usr/bin/mysqladmin: connect to server at 'localhost' failed Nov 29 12:17:07 V-PF-SQL1 /etc/init.d/mysql[2206]: error: 'Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2)' Nov 29 12:17:07 V-PF-SQL1 /etc/init.d/mysql[2206]: Check that mysqld is running and that the socket: '/var/run/mysqld/mysqld.sock' exists! Nov 29 12:17:07 V-PF-SQL1 /etc/init.d/mysql[2206]: The socket file is being created and I can access the server NOT using the socket using mysql -h 127.0.0.1 -P 3306 -u root --pPASSWORD

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• Mac, VNC and multiple monitors

  - by MarqueIV

  I asked a similar question here before but apparently I wasn't as clear as I had expected by the responses. That said, I'll try again. I have a Mac Pro with quad monitors which I would like to access remotely. I've been using VNC for this (either via screen sharing or a dedicated VNC client), which works, but the VNC protocol matches the physical layout/resolutions of attached monitors. One of the things I like about Microsoft's Remote Desktop (Terminal Server) client is that when you connect, it blanks out the local screens and sets the resolution to a client-specified setting. In other words, when natively running Windows, even though I'm running a physical 30" monitor flanked by 2 24" monitors as well as a 21" Cintiq monitor, I can set the Remote Desktop resolution to match my notebook's screen giving me a native, single-monitor configuration. As soon as I disconnect (and you log back in locally), the desktop un-blanks and the resolution resets back to the four physically attached monitors. Again, VNC works and yes I know I can use 5901, 5902...n to attach VNC to a specific monitor as opposed to the entire desktop, but I'm still at the mercy of trying to look at a 2560x1600 resolution on a 1280x800 screen. I'm left with either scaling (everything's too small) or panning/scrolling (it's like playing hide-and-seek with your documents!) SO... anyone know of any Mac-based remote software (client and server) that will let me connect to my Mac Pro and reset the resolution by the client, just like you can in Windows, or am I SOL?

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• Doing arithmetic and passing it to the next command

  - by neurolysis

  I know how to do this in /bin/sh, but I'm struggling a bit in Windows. I know you can do arithmetic on 32-bit signed integers with SET /a 2+2 4 But how do I pass this to the next command? For example, the process I want to perform is as follows. Consumer editions of Windows have no native automated sleep function (I believe?) -- the best way to perform a sleep is to use PING in association with the -n switch to get that many seconds, minus one, of sleep. The following command is effective for a silent sleep: PING localhost -n 3 > NUL But I want to alias this into a sleep command. I'd like to have it elegant so that you enter the actual number of seconds you want to sleep after the command, right now I can do DOSKEY SLEEP=PING 127.0.0.1 -n $1 > NUL Which works, but it's always 1 second less than your input, so if you wanted to sleep for one second you would have to use the command SLEEP 2. That's not exactly ideal. Is there some way for me to pass the arithmetic of $1+1 and pass it on to the next command in Windows? I assume there is some way of using STDOUT...

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• Windows 7 Install: No drives were found

  - by Albert Bori

  I was building a computer for my wife with an older SATA hard drive that I had lying around, and when attempting to do a new install of Windows 7 on it, the installer says: "No drives were found. Click Load Driver to provide a mass storage driver for installation." I ran the diskpart command: list volume, and it showed up as "Raw". So, I formatted it to NTFS and then it showed up as a healthy drive in diskpart. I also ran check disk on it with no errors. Windows 7 installer STILL can't find the drive. As far as BIOS settings, I have tried "Native IDE", AHCI, and Both AHCI/IDE mode (SATA slots 0-2 AHCI, 3-4 IDE). I tried all combinations... still "no drives were found". At this point, I'm just scratching my head. Using the installation dos window, I can see and talk to the drive just fine, but the installer just doesn't see it at all. I've even written folders and files to the drive, and it still "can't be seen". Any help would be great. Items of interest: Motherboard model: Gigabyte GA-A75M-UD2H - BIOS Version F5 (latest) Hard drive model: 80GB Seagate Barracuda 7200.7 ST380817AS (no other drives) Installing Windows 7 using a FAT32 formatted USB Drive, which I've used for other installs

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• How can I setup OpenVPN with IPv4 and IPv6 using a tap device?

  - by Lekensteyn

  I've managed to setup OpenVPN for full IPv4 connectivity using tap0. Now I want to do the same for IPv6. Addresses and network setup (note that my real prefix is replaced by 2001:db8): 2001:db8::100:0:0/96 my assigned IPv6 range 2001:db8::100:abc:0/112 OpenVPN IPv6 range 2001:db8::100:abc:1 tap0 (on server) (set as gateway on client) 2001:db8::100:abc:2 tap0 (on client) 2001:db8::1:2:3:4 gateway for server Home laptop (tap0: 2001:db8::100:abc:2/112 gateway 2001:db8::100:abc:1/112) | | | (running Kubuntu 10.10; OpenVPN 2.1.0-3ubuntu1) | wifi | | router | | OpenVPN INTERNET | eth0 | /tap0 VPS (eth0:2001:db8::1:2:3:4/64 gateway 2001:db8::1) (tap0: 2001:db8::100:abc:1/112) (running Debian 6; OpenVPN 2.1.3-2) The server has both native IPv4 and IPv6 connectivity, the client has only IPv4. I can ping6 to and from my server over OpenVPN, but not to other machines (for example, ipv6.google.com). net.ipv6.conf.all.forwarding is set to 1, I've tried disabling net.ipv6.conf.all.accept_ra as well, without luck. Using tcpdump on both the server and client, I can see that packets are actually transferred over tap0 to eth0. The router (2001:db8::1) send a neighbor solicitation for the client (2001:db8::100:abc:2) to eth0 after it receives the ICMP6 echo-request. The server does not respond to that solicitation, which causes the ICMP6 echo-request not be routed to the destination. How can I make this IPv6 connection work?

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• How can I make IPv6 on OpenVPN work using a tap device?

  - by Lekensteyn

  I've managed to setup OpenVPN for full IPv4 connectivity using tap0. Now I want to do the same for IPv6. Addresses and network setup (note that my real prefix is replaced by 2001:db8): 2001:db8::100:0:0/96 my assigned IPv6 range 2001:db8::100:abc:0/112 OpenVPN IPv6 range 2001:db8::100:abc:1 tap0 server side (set as gateway on client) 2001:db8::100:abc:2 tap0 client side 2001:db8::1:2:3:4 gateway for server Home laptop (tap0: 2001:db8::100:abc:2/112 gateway 2001:db8::100:abc:1/112) | | | (running Kubuntu 10.10; OpenVPN 2.1.0-3ubuntu1) | wifi | | router | | OpenVPN INTERNET | eth0 | /tap0 VPS (eth0:2001:db8::1:2:3:4/64 gateway 2001:db8::1) (tap0: 2001:db8::100:abc:1/112) (running Debian 6; OpenVPN 2.1.3-2) The server has both native IPv4 and IPv6 connectivity, the client has only IPv4. I can ping6 to and from my server over OpenVPN, but not to other machines (for example, ipv6.google.com). Using tcpdump on both the server and client, I can see that packets are actually transferred over tap0 to eth0. The router (2001:db8::1) send a neighbor solicitation for the client (2001:db8::100:abc:2) to eth0 after it receives the ICMP6 echo-request. The server does not respond to that solicitation, which causes the ICMP6 echo-request not be routed to the destination. How can I make this IPv6 connection work?

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• Play framework 2.2 using Upstart 1.5 (Ubuntu 12.04)

  - by Leon Radley

  I'm trying to get Play 2.2 working with upstart. I've been running Play 2.x with upstart since it's release and it's never been a problem. But since the release of 2.2 and the change to http://www.scala-sbt.org/sbt-native-packager/ play doesn't want to start any more. Here's the config I'm using description "PlayFramework 2.2" version "2.2" env APP=myapp env USER=myuser env GROUP=www-data env HOME=/home/myuser/app env PORT=9000 env ADDRESS=127.0.0.1 env CONFIG=production.conf env JAVAOPTS="-J-Xms128M -J-Xmx512m -J-server" start on runlevel [2345] stop on runlevel [06] respawn respawn limit 10 5 expect daemon # If you want the upstart script to build play with sbt pre-start script chdir $HOME sbt clean compile stage -mem $SBTMEM end script exec start-stop-daemon --pidfile ${HOME}/RUNNING_PID --chuid $USER:$GROUP --exec ${HOME}/bin/${APP} --background --start -- -Dconfig.resource=$CONFIG -Dhttp.address=$ADDRESS -Dhttp.port=$PORT $JAVAOPTS I've changed the JAVAOPTS to include the -J- and I've also changed the path to use the new startscript located in the /bin/ dir. I've read that upstart 1.4 has setuid and setguid. I've tried removing the start-stop-daemon but I haven't got that working either. Any suggestions would be appreciated.

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