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  • What applications can be used in a Red Hat/CentOS cluster?

    - by Sandra
    Hi, When I look at the Red Hat cluster manuals 1 2, they only explain how to install it but not what applications can use it. I am new to clusters, so I don't know these things =) Let's say I want to 3 node high performance cluster; What applications would work with it? Also, how does an application talk to the cluster? Does the application need to have been written to support clusters? Sandra

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  • Intel i7 vs Xeon quad core processor?

    - by jasondavis
    I know the Xeon processors have been around for a long time and are mostly used in servers but I am curious, why do people not use the xeon's in a high performance desktop? As far as I know about the best desktop processor out there now is the i7 line. The i7's and xeons are both quad-core processors, what is the main difference in these? I just saw that the mac pro's are using the quad core xeons instead of the i7's

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  • Script Editor in Snow Leopard painfully slow after adding apps to Library

    - by Kio Dane
    I have four different Macs that I use from time to time, and on each of them I notice a constant: adding more items to AppleScript Editor's Library window slows performance of mundane operations (opening a dictionary, switching between Library window and editor window, scrolling in the Library window, etc). In Leopard, I noticed little to no latency in opening a dictionary in Script Editor, but Snow Leopard's AppleScript Editor kills my productivity by making me wait on it with most UI interactions with the Library window.

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  • New drivers, now switchable graphics won't work

    - by Glenn Andersson
    I have an ASUS notebook with dual AMD/ATI graphic cards. Before I've been able to switch individual programs in the Vision Control Center from high performance to energy saving and the other way around. But today I updated the drivers using the AMD Mobility to version 12.10, and now every time I try to configure switchable graphics it either shuts down or does not come up at all. I have a new menu item called Global Switchable Graphics settings though. Any thoughts on this?

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  • Tomcat service start issue

    - by Srinivasan
    Hi, I have installed tomcat as service successfully. when i start this from control Panel- administrative tools - services, it tows error like this, The Apache Tomcat 4.1 service on local computer started and then stopped. Some service stop automatically if they have no work to do, for example, the performance logs and alerts sevice. Wat is the error?

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  • Re-deploy Reports from SCOM 2007 R2 Management Packs

    - by Gabriel Guimarães
    I've migrated Reporting Services on a SCOM 2007 R2 install, and noticed that the reports have not being copied. I can create a new report, but the ones I've had because of the management packs are gone. I've tried re-applying the Management Packs however it doesn't re-deploy them and when I try to access for example: Monitoring - Microsoft Windows Print Server - Microsoft Windows Server 2000 and 2003 Print Services - State View - select any item and click Alerts on the right menu. I get the following error: Date: 12/24/2010 12:40:35 PM Application: System Center Operations Manager 2007 R2 Application Version: 6.1.7221.0 Severity: Error Message: Cannot initialize report. Microsoft.Reporting.WinForms.ReportServerException: The item '/Microsoft.SystemCenter.DataWarehouse.Report.Library/Microsoft.SystemCenter.DataWarehouse.Report.Alert' cannot be found. (rsItemNotFound) at Microsoft.Reporting.WinForms.ServerReport.GetExecutionInfo() at Microsoft.Reporting.WinForms.ServerReport.GetParameters() at Microsoft.EnterpriseManagement.Mom.Internal.UI.Reporting.Parameters.ReportParameterBlock.Initialize(ServerReport serverReport) at Microsoft.EnterpriseManagement.Mom.Internal.UI.Console.ReportForm.SetReportJob(Object sender, ConsoleJobEventArgs args) The report doesn't exist on the reporting services side. how do I re-deploy this reports? Thanks in advance.

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  • Open source alternative for Canonical Landscape?

    - by netvope
    From Canonical: Landscape is an easy-to-use systems management and monitoring service that enables you to manage multiple Ubuntu machines as easily as one through a simple Web-based interface. However, Landscape is not free. The RedHat counterpart Satellite has a free version called Spacewalk, but it doesn't work on Ubuntu. (There is an attempt to port Spacewalk to Debian, but it doesn't look like it's stable yet.) Are there any open source alternative to Landscape? Better yet, are there any Spacewalk-like software that works for both RedHat-based and Debian-based systems?

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  • PHP script timed out, or otherwise killed on Apache under CentOS (shared host)

    - by MarkS
    When trying to run a PHP script (CentOS, Apache, PHP 5.2), that may take a long time, it is apparently killed after 45 minutes. PHP script is invoked from a web browser, and in certain situations, it will do a lot of work processing a POP3 mailbox and sending emails as part of an automated monitoring system. Running the PHP script from the command line might be a better option, but I want to understand what is going on so far. I ran a test script, and it appeared to finally give an internal server error (500?) after 45 minutes. Where is this limit set and what is killing the script, if that is what is happening? It's running on a shared host on Hostgator.com.

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  • what firefall linux distro applicance could track internet usage per device in my home?

    - by GregH
    Hello, Anyone know of a community edition/open source/free firewall/gateway software product that I could install onto an old PC to act as my firewall/gateway/proxy etc, BUT for which it has the power to track internet usage per device in my home. So: a) Mandatory - Track internet usage for devices on my home network on a per device basis (e.g. various PCs/Xbox etc) b) Mandatory - Report/graph would would give a breakdown of internet usage, per device (e.g. IP address), per day. c) Desirable - as in b) above but per hour d) Desirable - realtime graph (e.g. 5 minute measurement intervals or something) that shows current internet usage per device e) Mandatory - Handles all internal<=internet requests for all protocols (e.g. HTTP, HTTPS, xbox etc) f) Mandatory - No explicit settings in clients required - i.e. Transparent Monitoring concept (for both HTTP and non-HTTP traffic like xbox, skype etc) g) Mandatory - easy "appliance" like installation onto a dedicated low spec PC thanks in advance

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  • what firefall linux distro applicance could track internet usage per device in my home?

    - by GregH
    Hello, Anyone know of a community edition/open source/free firewall/gateway software product that I could install onto an old PC to act as my firewall/gateway/proxy etc, BUT for which it has the power to track internet usage per device in my home. So: a) Mandatory - Track internet usage for devices on my home network on a per device basis (e.g. various PCs/Xbox etc) b) Mandatory - Report/graph would would give a breakdown of internet usage, per device (e.g. IP address), per day. c) Desirable - as in b) above but per hour d) Desirable - realtime graph (e.g. 5 minute measurement intervals or something) that shows current internet usage per device e) Mandatory - Handles all internal<=internet requests for all protocols (e.g. HTTP, HTTPS, xbox etc) f) Mandatory - No explicit settings in clients required - i.e. Transparent Monitoring concept (for both HTTP and non-HTTP traffic like xbox, skype etc) g) Mandatory - easy "appliance" like installation onto a dedicated low spec PC thanks in advance

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  • Using the option port on my Watchguard Firebox as a 2nd gateway exit point?

    - by Donovan
    I'm working on a network project in witch I have to design our network to provide two different exit points. The points are differentiated by the path through the corporate network. One of them travels through some monitoring hardware the other does not. We have a Watchguard Firebox in use as our gateway. Currently the network side provides the unmonitored exit point. I was wondering if i hooked the option port to our lan at a point that would force traffic through the monitored path, would it cause any problems? Access to the unmonitored gateway port would be restricted by ip. That would force all others not authorized to point to the monitored gateway port. I thought with the above design i might be able to get away with not having to buy another firebox to achieve the design I want. Thanks, D

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  • How can i recover a zip password using CUDA (GPU) ?

    - by marc
    How can i recover a zip password on linux using CUDA (GPU). For the past two days i tried using "fcrackzip" but it's too slow Few months back i saw some application that can use GPU / CUDA and get large performance boost in comparison to CPU. If brute-force using cuda is not possible, please tell me what's the best application for performing a dictionary attack, and where can i find best (largest) dictionary. Regards

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  • alternative filesystems for SSD

    - by freedrull
    I am tired of watching fsck check my filesystem when my eeepc 901 shuts down abruptly due to a crash. I know that with a journaling filesystem, I won't have to wait for a check. However, I am well aware of the poor I/O performance of the SSD, so I can imagine using a journaling filesystem being even more frustrating, since there will be constant writes to the journal? I will buy a new laptop without such a crummy ssd someday but, is there anything I can do now, on the software side of things?

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  • Nvidia Gefore 9800 GT Low FPS [closed]

    - by AskaGamer
    I have a Nvidia Geforce 9800 GT would like to improve the performance especially with regards to the FPS. Is there some setting on my Nvidia panel that I can modify to change my FPS? Does anyone know of a good overclocking tool that will work the way it should?

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  • OS X Server App ail not accept login credentials

    - by user164113
    I cannot login to the server app and i know for sure all the login info is right. every time i enter my password the name window shakes to tell me it's invalid. I never post unless I'm out of ideas and I need it to be up so I can host my splash page tonight. i've spoken with "certified apple" specialists at some local mac stores and they are stumped too. Something is going on with the apache server, that's all i know for sure. I'll be monitoring this closely so any requests for info, etc. can be filled instantly. Thanks in advance. here's a few things i've noticed: I can ssh successfully into the server address as both root and admin. I've been fussing with the workgroup manager and could use guidance if that's where the problem lies. console shows this message repeatedly (org.apache.httpd[1890]) Exited with code: 1). Much appreciated, harry

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  • solr administration

    - by devrick0
    Does anyone have any notes for an sysadmin supporting solr? I'm looking for anything that might be useful for monitoring & metrics as well as troubleshooting. Some useful links I have found are: /solr/admin/stats.jsp and /solr/admin/analysis.jsp In the logs I have noticed, other than the query, "hits", "status" and "QTime" values. The documentation on what these mean is sparse at least based on the 100+ websites I have checked. QTime appears to be the query time response in milliseconds. Hits is some form of results but I'm not sure exactly what makes that up and I'm not sure about status. Typically I see status come back as "0" but I have seen other numbers such as "5", so my thoughts that it could be either HTTP status codes or a 0 or 1 (good or bad) methodology isn't accurate. All of the documentation I have come across is intended for developers. Any sysadmin-centric documentation would be a big help.

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  • There are lots of "Core i" CPUs, but Dell only offers a few -- who builds systems with the others?

    - by Jesse
    Passmark shows many varieties of Core i3, i5, and i7 cpus. Some of them, even at similar prices, are much faster than others. But Dell only offers a few options, and they're not the fast ones. For example, Dell offers the Core i5 650 (benchmark), which costs $220, and doesn't come close to the performance of the Core i3-2100 (benchmark), which costs $120. Does anyone sell systems with the faster, cheaper chips?

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  • Lots of 408 Request Timed Out from same IPs

    - by GreatFire
    Web server: Nginx. Checking our log files, there are many log entries of connections that: take 59-61 seconds send an empty request (or at least none is logged) result in a 408 response (request timed out) do not contain any http_user_agent originate from a limited number of IPs We are monitoring average times to serve responses and this obviously inflates our statistics. Apart from that though, is this a problem? Any idea why it is occurring? Does it suggest that somebody is intentionally messing with us? What should we do?

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  • Understanding Zabbix Triggers

    - by Mediocre Gopher
    I have zabbix set with an item to monitor a log file on a zabbix client: log["/var/log/program_name/client.log","ERROR:","UTF-8",100] And a trigger to determine when that log file get's more ERRORs: {Template_Linux:log["/var/log/program_name/client.log","ERROR:","UTF-8",100].change(0)}#0 This trigger gets tripped when the log file gets ERRORs the first time, but then that first trigger just sits around for ever in Monitoring-Triggers. My understanding is that the next time the server checks the value of log["/var/log/program_name/client.log","ERROR:","UTF-8",100] and sees that it hasn't changed that the trigger would go away. Obviously this isn't the case. Could someone explain why this first trigger isn't going away? Ultimately my goal is to receive an email whenever ERRORs are added to that log file, but I would like to understand how triggers are working first.

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  • Parse HTTP requests through Wireshark?

    - by diogobaeder
    Hi, guys, Is there any way to parse HTTP request data in wireshark? For example, can I expose the request parameters upon an HTTP GET request (being sent by my machine), so that I don't need to read the (sometimes) truncated URL and find them by myself? I was using Tamper Data and Firebug, on my Firefox, to analyse these requests, but they're not as reliable as a stand-alone tool for monitoring my network interface, but wireshark keeps data too raw concerning HTTP flow. If you guys know any other stand-alone tool that does this (must be Linux-compatible), please tell me. Thanks!

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  • 2 Servers setup for redundency, backup

    - by minal
    I presently have 1 dedicated virtual server running my website/blog/mail, etc. This is on Hyper-V with 512MB RAM. Windows Web2008. With the VM, I have these running within it: SmarterMail – for emails MS DNS – I have my own nameservers on this server SQL Express IIS7 2 IP Address I have now leased 2 physical servers : P4 2.6Ghz 1GB RAM 80GB HDD. With these new servers, I get 2 IPs per server as well. These are running Windows 2008 Standard. With the VM the HDD was obviously on a RAID setup so I was not worried about hardware issues as it fell on the provider to manage. However, with the new servers the HDD is not RAID’d, hence my concern is that if it fails I need a backup position. What would be the most ideal setup to go for? I am thinking: Server 1: (Web/PrimaryDNS) DNS – NS1 SQL Express – OFF turn on when required, ie. Server2 is down SmarterMail – OFF turn on when required, ie. Server2 is down IIS 7 Server2:(SQL/Backup) DNS – NS2 SQL Web Edition SmarterMail IIS 7 How can I set it up so that if 1 goes down I can have everything on 2 instantly or by manual switching over. I am confused as other DNS servers will cache the web servers IP address for requests, and if that server goes down, the backup server will have a different IP. How do I make this work? I will be doing routine backups, in which case I will keep copies of backups on both servers. If I am copying the same stuff on both servers like a mirror then I am losing on using the true performance out of it. It's like 1 server is always on standby. Ideally I want SQL and web on 2 diff machines for best performance. If Server1 goes down, I should be able to switch to Server2 fairly easily. I don't have a problem with manual intervention to start the sql/mail services, etc. In terms of scalabilty, the VM has coped pretty well to date. Moving forward the SQL and IIS workload is going to double pretty quickly. Some ideas would be great.

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  • Linux Transparent Bridge for Network

    - by Blackninja543
    I am attempting to set up a semi-transparent bridge. I say semi because I want it to act as a transparent tap for all traffic moving through both sides of the bridge. What I also want is to have the "green zone" accessible to a web interface for the bridge that will display all results of the IDS and other network monitoring tools. My example would be as such: eth0 <--> bridge(br0) <--> eth1 The entire network would be on the same subset however anything coming from eth0 to eth1 would be accepted. The only time anything would be drop is if the eth0 attempted to access br0. If someone attempts to access the web interface on br0 through eth1 it will succeed. My biggest problem I feel is if I attempt to block anything from eth0 to br0 this will drop the bridge all together.

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