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  • Acronis Disk Director AFTER Clone Disk error: PXE-E61: Media test failure, check cable

    - by Kairan
    Used Acronis Disk Director on my desktop, plugged in the laptop drive 240GB SSD (USB) and the new hard drive 500GB SSD (usb) and the copy seemed to be fine. I didnt see any error messages but I didnt stare at it for 3 hours either. The clone disk of course the Toshiba hidden restore partition, the primary partition C drive and the active (boot?) partition and yes, did check box for copy NT signature. The computer boots up fine most of the time, but it seems that when the computer goes to sleep (i believe its sleep, hard to do much testing during school) or hibernate or reboot it will sometimes display this message: Intel(R) Boot Agent GE v1.3.52 Copyright (C) 1997-2010, Intel Corporation PXE-E61: Media test failure, check cable PXE-M0F: Exiting Intel Boot Agent Insert system disk in drive. Press any key when ready... Of course any key does nothing but repeat a similar method. However, if I press the power button on the laptop (Toshiba Portege R705, Win 7 Pro 64-bit) it puts computer into hibernate. After hibernating I press power button again and it comes out of hibernation without any odd messages or problems described above... so apparently that is my TEMP fix. Another recent issue I noticed is on occasion when creating a new folder or modifying something in the system variables, other random areas I will get a message: "The Stub received bad data" and simply retry the task and it works. Perhaps these two issues are linked.

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  • Migrating to CF9: trouble getting JRun working with SSL

    - by DaveBurns
    I have a client on MX7 who wants to migrate to CF9. I have a dev environment for them on my WinXP machine where I've configured MX7 to run with JRun's built-in web server. I've had that working for a long time with both regular and SSL connections. I installed CF9 yesterday side-by-side with the existing MX7 install to start testing. The install was smooth and detected MX7, adjusted CF9's port numbers for no conflict, etc. Testing started well: MX7 over regular and SSL still worked and CF9 worked over regular HTTP. But I can't get CF9 to work with SSL. I installed a new certificate with keytool, FireFox (v3.6) complained about it being unsigned, I added it to the exception list, and now I get this: Secure Connection Failed An error occurred during a connection to localhost:9101. Peer reports it experienced an internal error. (Error code: ssl_error_internal_error_alert) I've been Googling that in all variations but can't find much help to get past this. I don't see any info in any log files either. FWIW, here's my SSL config from SERVER-INF/jrun.xml: <service class="jrun.servlet.http.SSLService" name="SSLService"> <attribute name="enabled">true</attribute>` <attribute name="interface">*</attribute> <attribute name="port">9101</attribute> <attribute name="keyStore">{jrun.rootdir}/lib/mykey</attribute> <attribute name="keyStorePassword">*deleted*</attribute> <attribute name="trustStore">{jrun.rootdir}/lib/trustStore</attribute> <attribute name="socketFactoryName">jrun.servlet.http.JRunSSLServerSocketFactory</attribute> <attribute name="deactivated">false</attribute> <attribute name="bindAddress">*</attribute> <attribute name="clientAuth">false</attribute> </service> Anyone here know of any issues re setting up SSL and CF9? Anyone had success with it? Dave

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  • Test whether svn REPO changes are reflected in Working Copy

    - by user492160
    Requirement Changes will be made to the REPO directory and this should get updated to wc(working copy) as opposed to the normal way of WC REPO. Senario: My svn repo- /var/www/svn/drupal My checkout-dir/working-copy- /var/www/html/drupalsite So I've done: edited post-commit hook to contain: "/usr/bin/svn update /var/www/html/drupalsite" I won't make any change to svn WC. I'll make changes to svn REPO- /var/www/svn/drupal. After changes are made to svn repo, run "svn commit /var/www/html/drupalsite". This will trigger the post-commit hook. This inturn will run "svn update /var/www/svn/drupal" and thus my WC will get updated with the changes of REPO. Query a. Would the above steps 1-3 help achieve my 'Requirement'? b. I'd need advise on how to test if the above setup works successfully or not. I'm at loss about the success of steps 1-3 the reason why query(a) is present. This is a bit more of a concern for me. NB: I'm new to subversion. Whatever I've configured till now have been done by reading articles online. Reason for query (b) is because I'm not into development. It seems to be a php drupal website and I happen to be setting it up. So I'm not aware as to how to make a "PROPER" change in REPO so that it gets reflected in WC. If reflected, my configs are right and the team can start on development. I manually put a random file/folder into REPO dir for seeing a change in WC and ran steps 1-3 but was of no avail and later on learned that it was NOT the way to make a change to a REPO. Pleas advise. Thanks

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  • How to add URL's to wiki (MediaWiki) powered documentation?

    - by Ian Boyd
    We have an internal company wiki. The wiki engine being used is MediaWiki, the wiki engine that runs Wikipedia. Some of it contains IT stuff. One of the things i want want to have are hyperlinks to the various virtual machines. An example of a command, as it needs to run, is: vmrc://solo.avatopia.com:5901/Windows 2000 Server My first thought was to convert the URL into a link: [vmrc://solo.avatopia.com:5901/Windows 2000 Server] But the content renders literally as above: with the square brackets and all. Testing with other URL protocols: [http://solo.avatopia.com] [ftp://solo.avatopia.com] [ldap://solo.avatopia.com] [vmrc://solo.avatopia.com] Only the first two work, and are converted to hyperlinks. The other two remain as liternal text. How can i add URLs to MediaWiki powered documentation? Original Question We have an internal company wiki. The wiki engine being used is MediaWiki, the wiki engine that runs Wikipedia. Some of it contains IT stuff. One of the things i want want to have are hyperlinks to the various virtual machines. An example of a command, as it needs to run, is: \\solo\VMRC Client\vmrc.exe solo.avatopia.com:5901/Windows 2000 Server If launching from a command prompt, you have to quote the spaces: C:\>"\\solo\VMRC Client\vmrc.exe" solo.avatopia.com:5901/"Windows 2000 Server" My first thought in converting the above for use on our wiki-site, is to simply HTML-ify it: file://\\solo\VMRC Client\vmrc.exe solo.avatopia.com:5901/&quot;Windows 2000 Server&quot; but MediaWiki only converts file://\solo\VMRC to a hyperlink, the remainder is text. i've tried other random things, including enclosing the URL in square brackets. What is the correct answer? i don't want to happen to randomly stumble on some format that happens to work today, and breaks in the future.

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  • Apache randomly loses permission to see files.

    - by arbales
    I have a server (Leopard Server, not my choice) running Apache and MySQL. Several months ago, the server began to raise "Forbidden" errors at random intervals, preventing access to a PHP application. This behavior randomly ceased. Now, several days ago I installed Passenger and deployed a Sintra/Rack application. The application runs as a user acarneg (for example) from /Library/WebServer/Documents/presto/current/public, acarneg owns the entire structure. The _www user has access to the directory via ACL chmod +a "_www allow read,write,...". Everything works great! But after a randomish interval, often ~12 or ~24 hours, Passenger throws an error that also prevents the PHP application from running. Passenger Error #2. Cannot stat file config.ru. Permission denied. But the permissions haven't changed (confirmed) and all one has to do to resolve the error is sudo apachectl graceful. If the permissions aren't changing and Apache doesn't seem to have a legit problem, what is causing this mess? Why did it stop before, and why has it resumed!?!?!? Thanks for the help!

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  • Prevent Network Printers Automatically being added to 'Devices and Printers' in Windows 7

    - by Ben
    I think my question is a duplicate of this one, but the original question was never properly answered (the steps described are for Windows XP). I am aware of the option to "Turn off Network Discovery" (under Control Panel All Control Panel Items Network and Sharing Center Advanced sharing settings); I set this option (for both Home/Work and Private) but it doesn't seem to stop the printers getting added, and has the side effect of preventing me from browsing the list of machines on the network (which I need). I've tried the Windows XP registry option - but it doesn't seem to make any difference: HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\NoNetCrawling I find it annoying having the printer list cluttered with printers from all over the office which I am never going to use (especially since lots of them no longer physically exist, users just haven't deleted them from their machines). This must be a real problem for people in massive offices with large numbers of printers - but I can't seem to find a lot of people complaining about it - which makes me think I'm missing something obvious. I don't really want to hack the firewall or turn off sharing completely, I still want to select and use network printers and file shares. Any ideas?

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  • Windows 7 BSOD Crashes

    - by Shane Andrade
    I recently upgraded to Windows 7 64 doing a clean install from Vista 64 and ever since I keep getting random blue screen crashes. I have the feeling it's caused by my video card but everything has the most up-to-date drivers for Windows 7 64 bit. Here is the memory dump from my most recent crash: MEMORY_MANAGEMENT (1a) # Any other values for parameter 1 must be individually examined. Arguments: Arg1: 0000000000041790, The subtype of the bugcheck. Arg2: fffffa8001990b90 Arg3: 000000000000ffff Arg4: 0000000000000000 Debugging Details: ------------------ PEB is paged out (Peb.Ldr = 000007ff`fffd9018). Type ".hh dbgerr001" for details PEB is paged out (Peb.Ldr = 000007ff`fffd9018). Type ".hh dbgerr001" for details BUGCHECK_STR: 0x1a_41790 DEFAULT_BUCKET_ID: VISTA_DRIVER_FAULT PROCESS_NAME: csrss.exe CURRENT_IRQL: 0 LAST_CONTROL_TRANSFER: from fffff80002cff26e to fffff80002c8cf00 STACK_TEXT: fffff880`0299ae38 fffff800`02cff26e : 00000000`0000001a 00000000`00041790 fffffa80`01990b90 00000000`0000ffff : nt!KeBugCheckEx fffff880`0299ae40 fffff800`02cc05d9 : fffffa80`00000000 00000000`01e73fff 00000000`00000000 fffff960`0023653f : nt! ?? ::FNODOBFM::`string'+0x339d6 fffff880`0299b000 fffff800`02fa2e50 : fffffa80`09140c90 0007ffff`00000000 00000000`00000000 00000000`00000000 : nt!MiRemoveMappedView+0xd9 fffff880`0299b120 fffff960`002e381b : fffff900`00000000 fffffa80`07c85d10 00000000`00000001 fffff900`c1e56cd0 : nt!MiUnmapViewOfSection+0x1b0 fffff880`0299b1e0 fffff960`002b4fc1 : 00000000`00000000 fffff900`00000000 fffff900`c1e56cd0 00000000`00000000 : win32k!SURFACE::bUnMapImmediate+0x5b fffff880`0299b210 fffff960`002b527b : fffff900`c07fdd10 fffff8a0`00000000 00000000`00000000 00000000`00000000 : win32k!bMigrateSurfaceForConversion+0x5ad fffff880`0299b340 fffff960`002dc3e3 : fffff900`00000000 fffff900`c1e5c010 00000000`00000000 00000000`00000000 : win32k!pConvertDfbSurfaceToDibInternal+0x1cb fffff880`0299b420 fffff960`002b5319 : fffffa80`07c7f470 00000000`00000001 00000000`00000000 00000000`00000282 : win32k!MulConvertChildRedirectionDfbSurfaceToDib+0x53 fffff880`0299b460 fffff960`002b1267 : fffff900`c0132010 fffff900`c0132010 00000000`00000000 00000000`00000000 : win32k!pConvertDfbSurfaceToDib+0x41 fffff880`0299b490 fffff960`002b1b1f : fffff900`c0132010 00000000`00000001 fffff900`c24cc280 fffff900`c0132010 : win32k!bDynamicRemoveAllDriverRealizations+0x4f fffff880`0299b4c0 fffff960`00273bb9 : 00000000`00000000 fffff900`00000000 fffff900`00000000 00000000`00000000 : win32k!bDynamicModeChange+0x1d7 fffff880`0299b5a0 fffff960`000baa2d : 00000000`00000000 00000000`00000000 00000000`00000000 07cd8220`00000003 : win32k!DrvInternalChangeDisplaySettings+0xc7d fffff880`0299b7e0 fffff960`001a2c41 : 00000000`00000040 fffff900`c00bf010 00000000`00000000 07cd8220`00000003 : win32k!DrvChangeDisplaySettings+0x62d fffff880`0299b9c0 fffff960`001a2e9e : fffffa80`07cd8220 00000000`00000000 00000000`00000000 fffff800`02f6fec3 : win32k!xxxInternalUserChangeDisplaySettings+0x329 fffff880`0299ba80 fffff960`001a033a : 00000000`00000000 00000000`00000000 00998b21`81a100b6 00000000`00000040 : win32k!xxxUserChangeDisplaySettings+0x92 fffff880`0299bb70 fffff960`001a053a : 00000000`00000000 00000000`00000001 00000000`00000000 00000000`00000000 : win32k!xxxRemoteSetDisconnectDisplayMode+0x42 fffff880`0299bbb0 fffff960`00183ea6 : 00000000`00000000 fffffa80`06efeb60 fffff880`0299bca0 00000000`00000005 : win32k!xxxRemoteDisconnect+0x1c2 fffff880`0299bbf0 fffff800`02c8c153 : fffffa80`06efeb60 00000000`00000005 00000000`00000020 00000000`00000000 : win32k!NtUserCallNoParam+0x36 fffff880`0299bc20 000007fe`fd6b3d3a : 00000000`00000000 00000000`00000000 00000000`00000000 00000000`00000000 : nt!KiSystemServiceCopyEnd+0x13 00000000`027cf798 00000000`00000000 : 00000000`00000000 00000000`00000000 00000000`00000000 00000000`00000000 : 0x7fe`fd6b3d3a STACK_COMMAND: kb FOLLOWUP_IP: win32k!SURFACE::bUnMapImmediate+5b fffff960`002e381b f6477401 test byte ptr [rdi+74h],1 SYMBOL_STACK_INDEX: 4 SYMBOL_NAME: win32k!SURFACE::bUnMapImmediate+5b FOLLOWUP_NAME: MachineOwner MODULE_NAME: win32k IMAGE_NAME: win32k.sys DEBUG_FLR_IMAGE_TIMESTAMP: 4a5bc5e0 FAILURE_BUCKET_ID: X64_0x1a_41790_win32k!SURFACE::bUnMapImmediate+5b BUCKET_ID: X64_0x1a_41790_win32k!SURFACE::bUnMapImmediate+5b Followup: MachineOwner

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  • Search for files after a relative date using Windows search

    - by Zoredache
    I am looking for a way to save a search that includes a relative date. Specifically I am looking for a way to save a search that matches files that have a modification date that is 7 days ago. I have read the Windows Search Advanced Query Syntax document and I am not seeing a way to say 7 days ago. The numbers and ranges section does mention that relative dates are possible. The problem is that the relative dates described there do not fit the criteria I need. The lastweek almost looks like what I want except if I run a query like after:lastweek on a Monday it will only show my file that have been modified since Sunday at 12:00. The lastweek/lastmonth seem to relative to the start of the week/month which is not what I need. Multi-word relative dates: week, next month, last week, past month, or coming year. The values can also be entered contracted, as follows: thisweek, nextmonth, lastweek, pastmonth, comingyear. One nice thing about saved searches is that they are stored as an XML document and the file format is documented. I am not seeing how to form a correct value for a datetime. If I was able to understand this format, I suspect I could use a text editor and created a saved search that does what I want. Fragment from the examples: <conditions> <condition type="leafCondition" valuetype="System.StructuredQueryType.DateTime" property="System.DateModified" operator="imp" value="R00UUUUUUUUZZXD-30NU" propertyType="wstr" /> </conditions> To summarize I am looking for an answer to one or both of these questions How do I make a query for '7 days ago' using the standard syntax? How is the DateTime stored in a saved search?

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  • needing storage integrity (write/read) test - for BASH

    - by Mr. Bash
    In need of shell scripts / bash commands to verify data integrity of local harddrives, usb-drives, etc, ... Like the famous www.heise.de/download/h2testw; or something that is at least common within repositories. (h2testw writes a specific datastring over and over onto the medium, then reads it again to verify if it was written correctly and displays write/read time/speed.) please no dd if=/dev/random of=/dev/sdx bs=1k && dd if=/dev/sdx of=/dev/null bs=1k since it won't verify if everything was written correctly. It is only a test if read/write is successful to the device. So far, I'm not too happy with badblocks -w -v /dev/sdx1 either, since it seems rather slow and I don't know what it exactly writes, and if it considers wear-leveling on flash media. There is also a program named F3 http://oss.digirati.com.br/f3/ that needs to be compiled. Designed after h2testw, the concept sounds interesting, i'd just rather have it as a ready to go bash script.

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  • How to activate Win XP from Windows 7 compatibility mode on MacOS Parallels 5

    - by Ben Hammond
    I am running Parallels Desktop 5.0.9344 for Mac. I am running Mac OS 10.6.3 10D2094 I have bought a retail copy of Window 7 professional specifically because I need the XP compatibility. Windows 7 is installed and working. I have problems with the XP activation Windows7 'Virtual PC' does not run under Parallels (strange error about Server Execution failed 0x80080005). I have used the Parallels Transporter to convert the "Windows XP Mode Base.vhd" file into a parallels Virtual Machine. This copy of XP now starts normally, however it records itself as unregistered. There was a KEY.txt file in the same directory as the .vhd file; although this file contains a valid-looking activation key, it does not appear to activate the instance of XP. I have also tried to enter the Win7 activation key; this does not work either. I have tried calling the two phone numbers; an automated system asked me to enter 56 digits through the telephone and then accused me of being a pirate. I believe it may be possible to install Win7 via Bootcamp, start WinXP under Virtual PC, activate it and then import this activated .vhd into Parallels; but that seems a long way round, and is far from certain. What can I do to get WinXP running under Mac Parallels Desktop ?

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  • Virtual host config issues in osx 10.7 server app

    - by Benno
    I have two mac mini lion servers setup to run as production and staging machines. My sysadmin decided on these machines over the previous CentOS we had because it had an "interface" to be able to manage it, rather than just the terminal. To be honest, I prefer the terminal. My problem is, the mac osx 10.7 server.app seems to be having issues with the creation of virtual hosts in the 'Web' section. It seems VERY touchy. For example, I cannot create a http virtual host first. I have to create a https host first with a unique dns name 9e..g vuly6), then create the http host with a different dns name to the first (e.g. www), or it appears to override it the first one, even though one is ssl and one is non-ssl. Further, it seems to override perfectly good configurations at random. For example, the default sites directory is usually /Users/default/Sites/Customsites or something, but sometimes when I load the server.app it changes to /var/empty. Also, if I change or add extra virtual hosts after the first one or two, it starts to mess up and the first two virtual hosts start having issues. Has anyone had any experience with setting up virtual hosts via this app? Am I able to manually create these virtual hosts, without using the app, and without the app overriding my settings when I restart apache?

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  • Request bursting from web application Load Tests

    - by MaseBase
    I'm migrating our web and database hosting to a new environment on all new machines. I've recently performed a Load Test using WAPT to generate load from multiple distributed clients. The server has plenty of room to handle the traffic load, but I'm seeing an odd pattern of incoming traffic during the load tests. Here is the gist of our setup: Firewall server running MS Forefront TMG 2010 on Win 2k8 server Request routing done by IIS Application Request Routing on firewall machine Web server is a Hyper-V VM on the Database server (which is the host OS) These machines are hefty with dual-CPU's with six cores (12 total procs) Web server running IIS 7.5 Web applications built in ASP.NET 2.0, with 1 ISAPI filter (Url Rewrite) in front What I'm seeing during the load tests is that the requests all come through in bursts. Even though I have 7 different distributed clients sending traffic loads, the requests come through about 300-500 requests at a time. The performance monitor shows nearly all of the counters moving through this pattern, where a burst of requests comes in the req/sec jumps to 70, the queued requests jumps to 500, the current requests jumps up, the CPU jumps up, everything. Then once it's handled that group of requests, it has a lull for nearly 10 seconds where nearly nothing is happening. 0-5 req/sec, 0 queued requests, minimal CPU usage. Then after 10 seconds of inactivity, another burst comes through, spiking all of the counters once again. What I can't figure out is why the requests are coming through in bursts when I know that the load being generated is not sent that way, especially considering the various load-generating clients sending traffic all in different intervals with random think time's between each request. Is there something in the layers between Hyper-V or perhaps in the hardware which might cause this coalesce of requests together? Here is what i'm looking at, the highlighted metric is Requests/sec, but the others critical counter go with it: Requests Queued (which I'd obviously like to keep as close to 0 as possible). Any ideas on this?

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  • Working with barcode fonts in Word

    - by Bob Rivers
    I need to create labels in Microsoft Word 2010 with numbers encoded as barcodes. The barcode's format (ean, code39, upc, etc) does not matter. I have downloaded a barcode conversion font that I found at this site. When I type the number that I want and then I format it with my new font, it produces a barcode. I then print it on an OKI laser printer (1200 dpi). The result seems to be fine, at least for common people. But, when I try to scan it, nothing happens. I tried both with a barcode scanner and a data collector, but neither of them read the barcode. My barcode scanner is working fine, because I can read commercial barcodes printed on products. Does anybody have any advice? How do I do this kind of stuff? I want to do it using Word because I will generate labels using Mail Merge. Therefore using external programs aren't option for me.

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  • How to generate thumbnails for less common video containers (mkv, ogm, mp4, flv, rmvb and mov) in wi

    - by fluxtendu
    So how to generate thumbnails for these containers? I know that the install of "DivX Plus Tech Preview: MKV on Windows 7" does it for MKV. But I think that only some registry changes are really necessary and I want it for other containers. If it's possible to avoiding the install of (always bloated) codecs packs it would be nice... Maybe only installing ffdshow or essential and separated codecs. (some time ago I have try reg files for vista without success...) Update: I have installed Win7codecs & tweaked a little its settings and I got almost everything I want. (I have also re-installed the relevant part of the divx plus tech preview to get something else than an all black preview for MKV) Issues that I still want to resolve: Find a cleaner & lighter method Almost all my rmvb and mov files got an all black preview (installing real media/quick time alternative doesn't help, is it the same with the officials?) With almost all containers (avi, mkv, ogm, mpg), I have (few) random files that don't get the preview. I could play them in WMP or another player and don't have found a pattern in the codecs used. All wmv, flv and mp4 have previews but I have less files in these containers. (I clear my thumbnails cache to test them) More generally I would like to understand how windows handle the containers & codecs to generate the previews. And a software that let me choose arbitrarily the pictures previewed would be convenient too

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  • How to troubleshoot connectivity when curl gets an *empty response*

    - by chad
    I want to know how to proceed in troubleshooting why a curl request to a webserver doesn't work. I'm not looking for help that would be dependent upon my environment, I just want to know how to collect information about exactly what part of the communication is failing, port numbers, etc. chad-integration:~ # curl -v 111.222.159.30 * About to connect() to 111.222.159.30 port 80 (#0) * Trying 111.222.159.30... connected * Connected to 111.222.159.30 (111.222.159.30) port 80 (#0) > GET / HTTP/1.1 > User-Agent: curl/7.19.0 (x86_64-suse-linux-gnu) libcurl/7.19.0 OpenSSL/0.9.8h zlib/1.2.3 libidn/1.10 > Host: 111.222.159.30 > Accept: */* > * Empty reply from server * Connection #0 to host 111.222.159.30 left intact curl: (52) Empty reply from server * Closing connection #0 So, I understand that an empty response means that curl didn't get any response from the server. No problem, that's precisely what I'm trying to figure out. But what more specific info can I derive from cURL here? It was able to successfully "connect", so doesn't that involve some bidirectional communication? If so, then why does the response not come also? Note, I've verified my service is up and returning responses. Note, I'm a bit green at this level of networking, so feel free to provide some general orientation material.

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  • Raid-5 Performance per spindle scaling

    - by Bill N.
    So I am stuck in a corner, I have a storage project that is limited to 24 spindles, and requires heavy random Write (the corresponding read side is purely sequential). Needs every bit of space on my Drives, ~13TB total in a n-1 raid-5, and has to go fast, over 2GB/s sort of fast. The obvious answer is to use a Stripe/Concat (Raid-0/1), or better yet a raid-10 in place of the raid-5, but that is disallowed for reasons beyond my control. So I am here asking for help in getting a sub optimal configuration to be as good as it can be. The array built on direct attached SAS-2 10K rpm drives, backed by a ARECA 18xx series controller with 4GB of cache. 64k array stripes and an 4K stripe aligned XFS File system, with 24 Allocation groups (to avoid some of the penalty for being raid 5). The heart of my question is this: In the same setup with 6 spindles/AG's I see a near disk limited performance on the write, ~100MB/s per spindle, at 12 spindles I see that drop to ~80MB/s and at 24 ~60MB/s. I would expect that with a distributed parity and matched AG's, the performance should scale with the # of spindles, or be worse at small spindle counts, but this array is doing the opposite. What am I missing ? Should Raid-5 performance scale with # of spindles ? Many thanks for your answers and any ideas, input, or guidance. --Bill Edit: Improving RAID performance The other relevant thread I was able to find, discusses some of the same issues in the answers, though it still leaves me with out an answer on the performance scaling.

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  • DNS lookup of GTLD servers using dig

    - by iamrohitbanga
    I ran the following command on linux >> dig . I got the following response ;; AUTHORITY SECTION: . 281 IN SOA A.ROOT-SERVERS.NET. NSTLD.VERISIGN-GRS.COM. 2010032400 1800 900 604800 86400 why does the response not contain the IP address of the root server? what do the numbers at the end of the reply mean. one of them is probably (definitely) the date. why does it report 2 root servers a.root and nstld.verisign? when i send the following queries dig com. ;; AUTHORITY SECTION:com. 51 IN SOA a.gtld-servers.net. nstld.verisign-grs.com. 1269425283 1800 900 604800 86400 again i do not get the ip addresses. when i query for the gtld server specified i can get the ip address. why is the response of dig net. same as that of dig com. except that instead of 51 we have 19 in the response.

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  • Picking a linux compatible motherboard

    - by Chris
    Last time I bought a new computer (I build them myself) I got a motherboard that had really poor linux support for a long time. Specifically the audio. I had to wait months before the kernel supported the on board audio chipset. That is exactly the situation I'm trying to avoid this time around. I have some specific questions about "server motherboards" actually. I looked at a few models of server motherboards by intel, and some random models on newegg. I wasn't able to see much of a difference from regular desktop motherboard other than most had two sockets, and support for much more ram. These boards seem more popular with Linux users. Why? AMD and Intel both have server CPUs as well. Some question, what's the difference? To make this question more concrete, I was looking at this this motherboard. The main questions about it that I can't answer are: Can I get a motherboard without on board raid and audio? I wanted to get a hardware raid controller and a PCI audio card. I thought a server motherboard would be cheaper and not have these "extras", since who wants an audio card on a server? Where can I found out about Linux support for the components on this board? "Intel ICH10R", "Realtek ALC889", "Marvell 88E8056" I'm buying this computer to work as a Linux desktop for a lot of compiling, coding and audio/video work, but I don't want to rule out the possibility of installing windows and playing some games at one point. (even if the last game I got has been sitting in its box unopened for almost a year). Is it a good idea to buy a "server motherboard" and play games on it, or are desktop boards better value for this? The ultimate solution for me would be a motherboard that had GPL divers for onboard LAN, a single CPU socket, lots of PCI express and PCI. USB 3.0, and no fancy hard disk controllers since I'll be getting a separate one.

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  • Basic multicast network performance problems

    - by davedavedave
    I've been using mpong from 29west's mtools package to get some basic idea of multicast latency across various Cisco switches: 1Gb 2960G, 10Gb 4900M and 10Gb Nexus N5548P. The 1Gb is just for comparison. I have the following results for ~400 runs of mpong on each switch (sending 65536 "ping"-like messages to a receiver which then sends back -- all over multicast). Numbers are latencies measured in microseconds. Switch Average StdDev Min Max 2960 (1Gb) 109.68463 0.092816 109.4328 109.9464 4900M (10Gb) 705.52359 1.607976 703.7693 722.1514 NX 5548(10Gb) 58.563774 0.328242 57.77603 59.32207 The result for 4900M is very surprising. I've tried unicast ping and I see the 4900 has ~10us higher latency than the N5548P (average 73us vs 64us). Iperf (with no attempt to tune it) shows both 10Gb switches give me 9.4Gbps line speed. The two machines are connected to the same switch and we're not doing any multicast routing. OS is RHEL 6. 10Gb NICs are HP 10GbE PCI-E G2 Dual-port NICs (I believe they are rebranded Mellanox cards). The 4900 switch is used in a project with tight access control so I'm waiting for approval before I can access it and check the config. The other two I have full access to configure. I've looked at the Cisco document[2] detailing differences between NX-OS and IOS w.r.t multicast so I've got some ideas to try out but this isn't an area where I have much expertise. Does anyone have any idea what I should be looking at once I get access to the switch? [1] http://docwiki.cisco.com/wiki/Cisco_NX-OS/IOS_Multicast_Comparison

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  • Import exponetial fixed width format data into Excel

    - by Tom Daniel
    I've received a bunch of text data files consiting of Lots of records (30K/file) of 3 fields each of 5-place numbers in exponential format: s0.nnnnnEsee (where s is +/-, n is a digit and ee is the exponent (always 2 digit). When I open the file in Notepad, the format is perfectly uniform throughout each file, but when I import it to Excel using Data|Import|Fixed Width, many of the data values get messed up, no matter what format (text, exponential, various custom tries) I assign to the cells. Looking at the Notepad version, it appears that leading + signs were replaced with a space in the data file, but the sign of the exponential is always there. This means that some fields begin with a space, and this appears to confuse the Excel import routine. I get the same result in Excel 2003 and 2007. I'm sure there's a straightforward solution (hopefully without a messy VBA routine), but I can't figure out what to try next. :-) To clarify (hopefully), here are some input records and the corresponding text input to Excel: Notepad Excel -0.11311E+01 0.10431E-04 0.27018E-03 -0.11311E 1.0431E-05 2.7018E-04 0.19608E+00-0.81414E-02-0.89553E-02 0.19608E -8.1414E-03 8.9553E-03 etc. Whoopee! Solved my own problem - in the spirit of Jeopardy, now that I've begun the question, here's the answer - Use a different "File Origin" - several other than the default "Unicode UTF..." work fine! What a pain. Hope this helps somebody else avoid a few unpleasant hours! Aloha from Kona, Tom

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  • How to set up QoS on ADSL router (terracom) for prioritizing browsing

    - by DBZ_A
    I want to configure the ADSL router which connects 10+ machines to the internet. I want to give maximum priority to browsing (ports 80,443) and set low priority for bittorrent etc.(port 42180) I have been experimenting with settings , but with no luck. There are three settings which confuse me, along with my understanding. 802.1 Priority - Related to LAN level, possible values 0-7 , higher numbers means higher priority. 'Mark traffic priority' - clueless about this. IPP/DS - IP Precedence - possible values 0-7 ; 6 & 7 are reserved, so set 5 for highest priority. Or when using DSCP - set 46 for highest priority. Please help me in getting this done... Similer question for another model of router here , but with less number of confusing options :) How to configure QoS on home router Update: from discussion on another thread, QoS can control only upstream traffic (from router to the internet) , while this may in turn affect downstream traffic rate, there is no direct control over data coming into the router.

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  • GlassFish v3: Security related updates + Repository/Publisher?

    - by chris_l
    I've used GlassFish v3.0 as my main development application server for a few weeks now. Now that I want to install it on my VPS, I'd like to get the latest security updates, because Glassfish v3 Release 3.0 (Open Source Edition or not) is already a few months old, and v3.1 is only available as "early access" nightlies (see https://glassfish.dev.java.net/public/downloadsindex.html). GlassFish offers an update mechanism (via pkg or updateTool), but when I simply try to get the latest updates (pkg image-update), it finds nothing. However, when I change the preferred publisher to dev.glassfish.org, I get a list with lots of updates. The interesting thing is, that I haven't been able to find any description about the contents of the diverse publishers/repositories (release, stable, contrib and dev) anywhere on the web, most importantly answering the question: Am I supposed to use the dev repository for security updates, or does it contain unstable updates? (The name suggests unstable updates, but the version numbers, like "3.0.1,0-11:20100331T082227Z" leave me guessing. The build is more than a week old, so it's obviously not "nightly" or "weekly", but what is it?) Where do I get security updates from then? Or are there simply no security updates yet? Asking on the GlassFish forum resulted in 56 views, but 0 answers.

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  • How Do I Secure WordPress Blogs Against Elemento_pcx Exploit?

    - by Volomike
    I have a client who has several WordPress 2.9.2 blogs that he hosts. They are getting a deface kind of hack with the Elemento_pcx exploit somehow. It drops these files in the root folder of the blog: -rw-r--r-- 1 userx userx 1459 Apr 16 04:25 default.htm -rw-r--r-- 1 userx userx 1459 Apr 16 04:25 default.php -rw-r--r-- 1 userx userx 1459 Apr 16 04:25 index.asp -rw-r--r-- 1 userx userx 1459 Apr 16 04:25 index.aspx -rw-r--r-- 1 userx userx 1459 Apr 16 04:25 index.htm -rw-r--r-- 1 userx userx 1459 Apr 16 04:25 index.html -rwxr-xr-x 1 userx userx 1459 Apr 16 04:25 index.php* It overwrites index.php. A keyword inside each file is "Elemento_pcx". It shows a white fist with a black background and the phrase "HACKED" in bold letters above it. We cannot determine how it gets in to do what it does. The wp-admin password isn't hard, but it's also not very easy either. I'll change it up a little to show you what the password sort of looks like: wviking10. Do you think it's using an engine to crack the password? If so, how come our server logs aren't flooded with wp-admin requests as it runs down a random password list? The wp-content folder has no changes inside it, but is run as chmod 777 because wp-cache required it. Also, the wp-content/cache folder is run as chmod 777 too.

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  • Blue screen issue

    - by Jack
    I received several BSOD's that are recorded in the following logs: Problem signature: Problem Event Name: BlueScreen OS Version: 6.1.7601.2.1.0.256.48 Locale ID: 3081 Additional information about the problem: BCCode: 50 BCP1: FFFFF95FF8150C10 BCP2: 0000000000000008 BCP3: FFFFF95FF8150C10 BCP4: 0000000000000005 OS Version: 6_1_7601 Service Pack: 1_0 Product: 256_1 Files that help describe the problem: C:\Windows\Minidump\040412-20030-01.dmp C:\Users\Jack\AppData\Local\Temp\WER-33025-0.sysdata.xml ~~~~~ Problem signature: Problem Event Name: BlueScreen OS Version: 6.1.7601.2.1.0.256.48 Locale ID: 3081 Additional information about the problem: BCCode: 1e BCP1: 0000000000000000 BCP2: 0000000000000000 BCP3: 0000000000000000 BCP4: 0000000000000000 OS Version: 6_1_7601 Service Pack: 1_0 Product: 256_1 Files that help describe the problem: C:\Windows\Minidump\040412-32729-01.dmp C:\Users\Jack\AppData\Local\Temp\WER-64319-0.sysdata.xml It seems to occur at random. I have gone 2 months without a BSOD, then I have gone a week with 10+ without changing what I am doing. This is my system: Windows 7 Professional 64-bit Gigabyte GA-890GPA-UD3H AMD Phenom II x6 1090T Processor 3.2GHz 8GB Ram(4X 2GB) Radeon HD 7850 2TB HDD Thermaltake 500W PSU I'm not sure about what the BSOD says, it just counts to 100 by 5's then restarts the computer. It happens fast and I have tried to get a picture before but to no avail.

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  • Should windows services be created with custom users, or should I use one of LocalSystem/LocalServic

    - by Justin Dearing
    I'm asking the question in general for the average custom developed NT service or unix OSS daemon ported to windows with SCM support. However, at the moment my immediate concern is for mongodb. From my experience with UNIX I like all my services to run as different unprivileged users. The way this has translated to windows is as follows: Create a local (or domain if it has to talk to SQL server) windows user with a long random password (lately an ASCII85 encoded guid generated from a different machine). Set it to next expire and forbid it from changing its password. Remove that user from the "Users Group". Grant that user "Login as a Service" permission. Give it read permission to the folder where the app resides, and write permission to the logs and data files the applications use. Assign the user to the service. Troubleshoot until the service starts. My feeling is that the unprivileged users are less powerful than the 3 special service users. I also feel that by isolating which users run which services, I would limit collateral damage if a way to compromise one service was found.

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