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• Does changing the default HDFS replication factor from 3 affect mapper performance?

  - by liamf

  Have a HDFS/Hadoop cluster setup and am looking into tuning. I wonder if changing the default HDFS replication factor (default:3) to something bigger will improve mapper performance, at the obvious expense of increasing disk storage used? My reasoning being that if the data is already replicated to more nodes, mapper jobs can be run on more nodes in parallel without any data streaming/copying? Anyone got any opinions?

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• SQL Server 2008 Trial - How many days left?

  - by codeulike

  If you have SQL Server 2008 Trial edition installed, how can you find out how many days are left? It doesn't seem to be in the Help-About dialog, or anywhere obvious.

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• SNMP HOSTMIB.MIB not loading?

  - by Eriedor

  Forgive me if the answer is something glaringly obvious but I just can't seem to get access to any OIDs under the HOST branch in SNMP. I've used an SNMP browser to inspect a few of my systems and none of them show a HOST branch under ISO.ORG.DOD.INTERNET.MGMT.MIB-2. Any thoughts as to why? I'm looking to monitor a few computer's hardware resources via SNMP and unfortuantely all such OIDs live under the missing HOST branch, Any thoughts?

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• Change OpenSSH account password in Linux

  - by TK Kocheran

  I suppose that my main Linux user account password serves as my SSH password as well. Is there a way I can modify this? As it turns out, I'd like to have a REALLY secure SSH password for obvious reasons, but a less secure local password, as it makes typing in passwords a heck of a lot easier on a machine. Is there a way I can change my account password in SSH without changing my Linux user password?

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• Efficient way to secure tomcat database connections

  - by Greymeister

  Our customer has a problem with database information in plaintext within a server.xml or context.xml file on the Tomcat server. I've looked at several sites like OWASP and it seems like there's no obvious solution. I've also seen things like this wordpress blog which describe implementing a custom Tomcat extension to do this. There must exist some standard implementation(s) already without having to roll your own. Does anyone have experience with such a solution?

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• Finding Mail (32-bit) in the start menu

  - by Farseeker

  I find myself often visiting the Mail control panel for people I'm helping who use Outlook. However, it never, ever shows up in the start menu for anyones computer: Is there some magic string I can type in to get that menu item? I've tried all the obvious ones: Mail Mail (32-bit) Mail 32 Bit But to no avail. Normally I just go the long way, but with Windows 8 and Metro I'm concerned I'm going to get very frustrated trying to talk users through it over the phone.

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• Is it possible to run several virtual machines each with independent mouse+keyboard on a single PC?

  - by chiurox

  My goal is to instead of buying 4 separate basic PCs (plus the obvious peripherals), buy just one fast PC and the peripherals. I'm wondering if I can use a more powerful computer, say, one with core i7 and plenty of RAM, with 2 video cards (total of 4 monitor outputs) to run 4 or more virtual machines (WinXPs) so instead of having 4 individual machines, I'll be having just one. However, the catch is, is it possible to have a pair of mouse and keyboard + input/output audio for each of these virtual machines?

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• Is there a way to setup a hotspot with a domain name rather than IP address?

  - by WagnerMatosUK

  Basically I've setup a hotspot and its currently being accessed through an IP address. I'd like to use a hostname instead. This is for internal use only, meaning the ODROID device which is being used to as Access Point is connected to the internet via ethernet and only a few devices will access the AP. My setup details: Arch Linux on an ODROID U3 device, using hostapd and dhcp server. PS: I'm quite inexperienced with network so I might be missing something obvious here. Thanks in advance

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• SNMP HOSTMIB.MIB not loading?

  - by user11860

  Forgive me if the answer is something glaringly obvious but I just can't seem to get access to any OIDs under the HOST branch in SNMP. I've used an SNMP browser to inspect a few of my systems and none of them show a HOST branch under ISO.ORG.DOD.INTERNET.MGMT.MIB-2. Any thoughts as to why? I'm looking to monitor a few computer's hardware resources via SNMP and unfortuantely all such OIDs live under the missing HOST branch, Any thoughts?

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• Emergency response CMS

  - by mmcglynn

  I have been asked to do some investigation regarding an emergency website response scenario, a critical situation that would bring quintuple website traffic to 30K visits a day for a few days. No one wants to use our current CMS for this, but rather WordPress or something else. The obvious, a static HTML page is out. I have a separate research track for optimizing WP, so my question is, is there a hosted, easy to use CMS that can handle huge traffic? Like Squarespace but for enterprise.

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• Which components are most susceptible to kinetic damage (fall)

  - by ULTRA_POROV

  I guess the most obvious answer would be a hard disk, are there any other components that are very susceptible to this kind of damage?

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• Is it possible to map a network path to any cloud storage hosts?

  - by Frantumn

  I use Microsoft SkyDrive and Google Drive. I was wondering if it was possible to map to a folder on a cloud service via FTP or something similar? I don't see any obvious ways on Google, or SkyDrive web sites. I know they each have their custom applications to access the cloud storage files. But my network admins block traffic on those applications. So I was looking for another way to access the files (not through the web site either).

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• is ROBOCOPY a good form of backup as a tool?

  - by dasko

  seeing how it does not do a write verify unless scripted (or is it needed?) is it a decent option to dump a few folders to another server? i am just worried about whether the data, after being copied, might be corrupted but you would not be aware of it being buggy? i have used it in the past without issue but am seeking feedback in case i missed something obvious.

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• Install xenserver on iscsi target

  - by Ghassen Telmoudi

  Is is know that Xen Server is based on CentOS, and it is fact that CentOS can be installed on an ISCSI target flawlessly, but I wanted to install Xen server on an ISCSI target I couldn't find a way. I already tried the latest version of xen server 6.2, and there is no obvious way who to do the installation without a local disk. Does anybody have an idea about the subject, or did someone know how to do it? Please share your experience about this subject.

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• How to change machine name on TFS 2010 RC?

  - by Ross Johnston

  I'm trying to rename the TFS 2010 RC VM machine name so I can add it to our domain without the chance of clashing with another copy of the VM already on the domain. I found instructions for TFS 2008 saying to use TFSAdminUtil ActivateAT , but this tool has now been replaced by TFSConfig and I can't see an obvious replacement for 'ActivateAT'. Any ideas what the new command should be?

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• Configure APC for maximum hit rate

  - by Steven De Groote

  I'm currently running php5 with APC, the latter with default configuration. However after setting up munin to monitor APC, I'm surprised by the results: apc.shm_size: 30 apc.gc_ttl: 3600 apc.ttl: 0 Used: 14MB Request rate: 100 requests/second Fragmentation: 0 Hit ratio: 80% (dropping to 0 a few times per hour) So the obvious question: how can I adapt the configuration to achieve a higher hitrate. I find it very strange that the available memory is not fully used which the hitratio is still below what I would expect. Thank for any hints!

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• How do I set a service startup type to be 'Automatic (delayed)' using GPO?

  - by growse

  A Windows service has 4 different startup types that can be configured: Automatic, Automatic (delayed), Manual and Disabled. I have a service running on a combination of Windows 7 and Server 2008 R2 Desktops that I need to set as 'Automatic (delayed)' using a GPO setting, but from what I can see in the GPO editor, the delayed option is missing: Have I missed something obvious, or is this a rather basic omission from Microsoft?

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• Is there a way to search for equations in Word 2007 documents?

  - by FM

  I have many large Word 2007 documents containing a few dozen equations each. Is there a way to locate the equations using Word's Find command, or do I have to hunt for them old-school? I tried searching for a graphic (^g) and and field (^d), but that didn't do the trick. Am I missing something obvious? Might there be a way to do this using VB or some other trick?

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• Windows shell damaged? Basic tabs and buttons layout with Aero enabled

  - by Dragiša

  I would need little help from you. This is first time I see something like this happen to shell in Windows 7, as you can see, tabs and buttons in some programs, or control panel (see screenshot) are like those in basic Windows theme. Of course, there is selected 'Adjust for best appearance' in System Properties, so it's not making a problem, also Aero theme is enabled, which is obvious. What could be solution for this?

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• What free softtware (Windows 7) to use with a webcam

  - by DavRob60

  I got a web-cam and I feels it's a bit underused. So I'm wondering what free software I could use with it beside of the obvious Widows Messenger (or MSN or whatever it's name now) / Skype.

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• No scheduled tasks in Esxi 5?

  - by Jeroen Jacobs

  I'm using the free version of VMWare's ESXi 5.1.0. I'm logged in as root in the vSphere client, and I want to create some scheduled tasks. According to the documentation, I should go to "Home"="Management"="Scheduled tasks". However, when I go to "Home", I only have "Inventory" and "Administration". There is no "Management" section. Is this a limitation of the free version (I doubt it, but still), or am I missing the obvious here?

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• How to install PHP in a new directory in Windows

  - by jasondavis

  I am using Xampp for a local dev server, I am trying to upgrade it so I can use the latest version of PHP. I had it installed in my c drive c:\webserver\php I just installed everything new in a new drive D d:\webserver\php I then boot everything up and then I run phpinfo() and it is still showing my old version of PHP and even points to the old php installation C:\webserver\php\php.ini Am I missing something obvious here?

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• How can I tell who deleted a folder from a public share?

  - by wizard

  Like a lot of offices we have a few public shares for different teams to save their data. Today I helped someone restore some folders from a shadow copy that had been deleted sometime last week. While I had the shadow copies (and backups elsewhere), I couldn't answer the obvious first question. "Who deleted the files?" We're running Windows 2003 server, everyone has active directory accounts.

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• How to change the X-Windows default border width for all window frames in Ubuntu using Gnome 2.28

  - by Heston T. Holtmann

  Way back from Windows 3.x days to the latest 64bit Windows 7 (classic/standard theme).. there is a way to make the window edge border wider then 1 pixel... I often use 3 to 5 pixel to make it easy to grab on hi-resolutions displays and hi DPI monitors. There doesn't seem to be an easy or obvious way to do this with the Gnome X-Windowing system? Does any one know how?

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• What logs should I collect from a Windows server network?

  - by Cygnus X

  I'm setting up a log collection server for my Windows network (about 30 servers ranging from 2003 to 2008 R2, and about 300 vista/7 clients), and I was wondering which logs are good to collect and which ones are a waste of time. I'm going to collect the obvious ones (system, security, event, firewall, and role specific logs) but are there any others I should be worried about? I'm using Splunk if that helps answer the question.

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