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  • Rebinding Keys on a Dell Keyboard

    - by Maarx
    I have a Dell Multimedia Keyboard, similar to this one: It has many non-standard keys, like the small circular ones across the top, and the "Multimedia" keys above INSERT/HOME/PAGE_UP. They can be rebound through simple registry entries. Some sample ones are included below: [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\AppKey] [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\AppKey\15] "ShellExecute"="C:\\Program Files (x86)\\Mozilla Firefox\\firefox.exe http://mail.google.com/mail/#inbox" [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\AppKey\16] "Association"=".cda" [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\AppKey\17] "ShellExecute"="C:\\Windows\\System32\\SnippingTool.exe" [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\AppKey\18] "ShellExecute"="calc.exe" [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\AppKey\7] "Association"="http" I've rebound the "MAIL" key to, instead of booting Outlook, to booting Firefox directed at my G-Mail account. I've rebound the button that would normally open "MY COMPUTER" to instead boot the Windows 7 "Snipping Tool", something I find very useful. Now, I'm looking to do some other things that I don't already know how to do. Note that answering this question doesn't necessarily require any knowledge about the keyboard or rebinding the keys: I can add, for any given key, a "ShellExecute" entry, and it will simply execute the following command as if it was typed at a Command Prompt. (I'm aware I dumbed that down rather significantly, but bear with me. I'm not really a Windows guy myself.) I use the volume knob for it's intended purpose, to change volume. I would like to change, however, a different key, to "reset" the Windows volume level back to exactly 50%, or, as it refers to it, "50", on it's 0-100 scale. I'm looking for the "program" (what I would type at a command prompt? these are still just Sys32 programs in the PATH, aren't they?) that, I imagine, would take arguments, to change Sound/Volume settings under Windows 7. Perhaps, for clarification, something that might take the form "C: SetVolume -slevel 50" or something.

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  • Linking to network shares from Sharepoint pages

    - by Russell C
    So the place I work decided to set up a Microsoft Sharepoint 2010 server for task management and I (as the lowly entry-level intern) have been tasked with "figuring it out." One thing that the end users really, really, really, want is the ability to link to network shares (that are readable by anyone who will be using sharepoint) from a Sharepoint web page. In order to do this, I have edited the HTML manually with several lines that look like the following: <a href="file://server/share">Server Share</a> This works (sometimes) but the link reported by Sharepoint is often wrong and editing pages that contain these links will mangle the code such that when I open it, the code no longer looks like what it did when I last hit save (breaking all those links). Obviously this is not sustainable. I've been told by coworkers that "It worked that way at the last place I worked" but I haven't found out how yet. Any ideas on how this would work or am I barking up the wrong tree? None of the knowledge searches I've done shed any light on the sitataion. Thanks for any help! -Russell P.S. It should be noted that the file option in an href tag ONLY works in IE (which is a real bummer since we mostly use Firefox).

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  • Why does just splitting an Ethernet cable not work?

    - by Sin Jeong-hun
    I thought the Ethernet is logically a one-line communication bus (for argument's sake, I am excluding hubs). All machines attached on the bus hears the same signals and the machines themselves try to avoid collisions by randomly backing off. http://computer.howstuffworks.com/ethernet6.htm If so, why would splitting one Ethernet line from my home router into two and connecting two computers not work? Why do I have to add a switch to it? *What the Internet said would not work. [4 port home router] ------[one Ethernet cable]-----[simple splitter]======[two computers] *What the Internet said I should do [4 port home router] ------[one Ethernet cable]-----[switch]======[two computers] Is this because of the signal degradation (reduced electric current)? Thank you for all the answers! The reason why I did not just use the two ports of my home router is... The 4-port gigabit router is in my room, and I had put a computer in another room (also my room, though). Since a wired network is far more reliable and secure, I had bought a long Ethernet cable and and connected the computer to the router. Now I was thinking about adding another computer to that room. I could buy another long Ethernet cable, but then there will be two cables between the rooms. The one line already is a minor annoyance, so I thought if I could share the one line between the two computers in that room. A switch would work, but it requires power and is a little bit pricey. That is why I wondered why it would not work to simply split the physical Ethernet cable. Apparently I do not completely understand how Ethernet and a switch work. I just have some bit of knowledge I heard in my college class.

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  • Problem adding second domain controller to SBS 2008

    - by Quango
    Have an SBS 2008 server in one location, and want to add a backup domain controller at a different site. The two sites are linked by a VPN. New server is running Server 2008 R2, fully patched. At present it is a member server and the DNS is pointing at the SBS DNS. When I try running DCPROMO to connect the server, the wizard runs fine up to the point where the wizard is 'configuring Active Directory Domain Services' and 'examining forest': "The operation failed because: The wizard could not read operational attributes from the remote Active Directory Domain Controller SERVER.DOMAIN.LOCAL using LDAP. "The specified server cannot perform the requested operation." This error can occur if you have not been granted necessary permissions to read data in the directory. For more information, please see article 936241 in the Microsoft Knowledge Base (http://go.microsoft.com/fwlink/?LinkId=88420)." I was logged on as domain administrator. Interestingly the link is invalid and the KB article does not exist..! Settings: Configure this server as an additional Active Directory domain controller for the domain "[domain]". Site: [site] Additional Options: Read-only domain controller: "No" Global catalog: Yes DNS Server: Yes Update DNS Delegation: No Source domain controller: any writable domain controller Database folder: C:\Windows\NTDS Log file folder: C:\Windows\NTDS SYSVOL folder: C:\Windows\SYSVOL The DNS Server service will be configured on this computer. This computer will be configured to use this DNS server as its preferred DNS server.

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  • VPN Trunk Between Cisco ASA 5520 and DrayTek Vigor 2930

    - by David Heggie
    I'm a bit of a VPN newbie, so please go easy on me ... I'm trying to use the VPN trunking capabilities of the DrayTek Vigor 2930 firewall to bond two IPSec VPN connections to a Cisco ASA 5520 device and I'm getting myself tied in knots and hope someone here with more knowledge / experience can help. I have a remote site with two ADSL connections and the DrayTek box. The main office site has the Cisco ASA device. I am able to setup a single IPSec connection between the two sites on either of the ADSL connections' public IP addresses, but as soon as I try to use the VPN bonding, nothing works. The VPN tunnels are both still up, but the traffic is getting lost somewhere. I suspect it's due to the ASA not knowing how to route the traffic back over the VPN - one minute, traffic from my remote office's network is coming from public ip address #1, the next it's coming from public address #2 and it doesn't know what to do. Well, that's my newbie impression of what's going wrong, but I don't really know: If this is really what's happening If what I'm trying to do (bond two VPN connections from a single remote network to improve the bandwidth / resiliency) is possible with the kit I've got Could anyone help?

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  • sendmail relay status

    - by Andy
    Hello all, I have a RHEL3 server with sendmail configured to relay mail to: # "Smart" relay host (may be null) DSmailrelay This relay server is an exchange server not administered by me. A few days ago its IP address was changed without my knowledge so I've updated the correct ip in /etc/hosts for the mail relay entry. Unfortunately no mail is currently going through and maillog reports: Oct 26 14:32:39 fsimag sendmail[12580]: n9Q3VxPA012580: from=root, size=3685, class=0, nrcpts=1, msgid=<~R.*.2009102614315955@*>, relay=root@localhost Oct 26 14:32:39 fsimag sendmail[12580]: n9Q3VxPA012580: to=wodwest@*.net, delay=00:00:40, mailer=esmtp, pri=33685, dsn=4.4.3, stat=queued Oct 26 14:36:09 fsimag sendmail[13670]: n9Q3ZTcf013670: from=root, size=5831, class=0, nrcpts=1, msgid=<~R.medicus.2009102614352914@*>, relay=root@localhost Oct 26 14:36:09 fsimag sendmail[13670]: n9Q3ZTcf013670: to=tsgastro@(.net, delay=00:00:40, mailer=esmtp, pri=35831, dsn=4.4.3, stat=queued Oct 26 14:36:50 fsimag sendmail[13882]: n9Q3aAxj013882: from=root, size=5830, class=0, nrcpts=1, msgid=<~C.medicus.2009102614361009@*>, relay=root@localhost Oct 26 14:36:50 fsimag sendmail[13882]: n9Q3aAxj013882: to=elmwood@*.net, delay=00:00:40, mailer=esmtp, pri=35830, dsn=4.4.3, stat=queued (With domains obscured) The mailq command shows nothing, and I've also tried connecting to this new mail server via telnet and manually sending and reports as being queued but not sent. The administrator of this machine has put it back to me saying he sees no problems, and I just want to cover everything before passing it back to him. Is there any other tests/logs/reasons for sendmail to only report it as "stat=queued" ? I've looked in previous logs and the relay is set to root@localhost in those but none were ever set to queued. Thanks for any help, Andy

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  • Kernel hacking methodology - how to find out where to hack the linux kernel

    - by Flavius
    I have a throw-away cheap laptop I'd like to twiddle around, a Thinkpad SL 500. What bothers me are two leds, the one for wireless connectivity, and the one for hibernation, which don't light up at all, although they're functional, I've tried it on windows. So I would like to write a kernel driver for them, nothing big, it just looks like a good idea to play around with the kernel. My question is what methodology should I follow systematically to find out what devices are responsible for those leds (in general, not necessarily specific to my hardware), and what drivers are responsible for the other two leds that work, bluetooth and the battery indicator? And when I say methodology, I really mean the methodology, step by step, with reasons for each step, like in the answer I've gave to someone else over here: What does && mean in void *p = &&abc; I am profficient at fgrepping through big code repositories, using static code analysers & co, but I think my lack of hardware knowledge hinders me on this problem. PS: I'm using ArchLinux, so almost the latest kernel version.

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  • Backup data rate on Raspberry Pi maxing out at 5 Mb/s. Why?

    - by bastibe
    I set up my Raspberry Pi as a Time Machine, as documented here. At the moment, the Raspberry Pi is connected to my MacBook Pro using a direct Ethernet cable. Also, an external hard drive (laptop drive) is connected to the Raspberry Pi using the USB port. However, backups are pretty slow. Activity Monitor claims that the Network is transferring a very steady 5 Mb/s, where my Time Capsule is transferring up to 8 Mb/s with a lot of fluctuation. The Raspberry Pi self-reports (top) that its CPU is only half-used, with about equal parts afpd, usb-storage and jbd2/sda1-8. Thus, I think that the processing power of the Raspberry Pi does not seem to be the problem here. To me, this looks like there is some kind of bottleneck that maxes out at 5 Mb/s thus potentially having my backups run at less than their potential speed. To the best of my knowledge, this might be the afp-daemon, the usb-bus or the external hard drive. So, my question is, how could I identify the true culprit and what can I do about it?

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  • GMail and Yahoo Mail servers not accepting mails from my slicehost slice

    - by Lakshmanan
    Hi, I have a rails in one of the slices at Slicehost. I've setup postfix (sendmail) to send emails from my rails app. All emails to Google Apps domain (to company setup google hosted paid email id) are getting delivered properly (but to spam folder). But all emails to [email protected], [email protected], .. @hotmail.com are not getting delivered and this is the line from my /var/log/mail.log Dec 21 17:33:56 staging postfix/smtp[32295]: 5EB4810545B: to=<[email protected]>, relay=j.mx.mail.yahoo.com[66.94.237.64]:25, delay=1.6, delays=0.02/0.01/1.5/0, dsn=4.0.0, status=deferred (host j.mx.mail.yahoo.com[66.94.237.64] refused to talk to me: 553 Mail from 173.203.201.186 not allowed - 5.7.1 [BL21] Connections not accepted from IP addresses on Spamhaus PBL; see http://postmaster.yahoo.com/errors/550-bl21.html [550]) and this is what i got for gmail Dec 21 17:29:17 staging postfix/smtp[32216]: 0FA3310545B: to=<[email protected]>, relay=gmail-smtp-in.l.google.com[74.125.65.27]:25, delay=0.59, delays=0.02/0.01/0.09/0.47, dsn=5.7.1, status=bounced (host gmail-smtp-in.l.google.com[74.125.65.27] said: 550-5.7.1 [173.203.201.186] The IP you're using to send mail is not authorized 550-5.7.1 to send email directly to our servers. Please use the SMTP relay at 550-5.7.1 your service provider instead. Learn more at 550 5.7.1 http://mail.google.com/support/bin/answer.py?answer=10336 v49si11176750yhc.16 (in reply to end of DATA command)) Please help. I have very little knowledge about setting dns, servers and stuff.

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  • Are applications optimized for XenApp?

    - by damitamit
    Our IT dept are about to deploy virtualized apps using Citrix XenApp. One of these apps will be Dynamics AX 4.0 SP2, a ERP client (which I develop on). They have supposedly reached a roadblock because an external 'Dynamics AX Consultant' has told our IT Dept that Dynamics 4 will not work optimally on Citrix and will run very slow because it is not optimized for Citrix. We have it running in a Test environment now and seems ok. They have been told that the only 'solution' is to upgrade to Dynamics AX 2009 where supposedly this problem as been fixed. (not a small task for my team!) When I heard about this, I was quite surprised. From my brief knowledge of Citrix, I thought it would be application independent. How does the citrix app virtualization work, in that a particular app would work better than others on citrix? Would the speed of the virtualized app not just depend on the resources/network connection the citrix server has? FYI, Dynamics AX is a 3-tier client/server system, so the client will be accessing a AOS application server, which then accesses the database. Please enlighten me :)

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  • Windows Bluescreen - atikmpag.sys

    - by Mochan
    Information Name: atikmpag.sys bluescreen (BSOD or BlueScreen of Death) Error code: 0x00000116 Appears when: Playing games, watching videos Can be reproduced: Yes Cause: Graphics Card is the main assumption System Specifications Before we begin - I will inform you of my specifications. OS: Windows 7 x64 Home Edition Model: Dell Inspiron 15R Special Edition (aka Inspiron 7520) (Add 2GB of RAM to the model linked) Hard Drive: 1TB CPU: Intel Quad-Core i7 Sandy Bridge (I think) Processor at 2.10GHz (I think it can be clocked to 3GHz?) RAM: 6GB (I think 1 x 4GB and 1 x 2GB) Display: 15.6" HD (1366x768) Graphics: AMD Radeon HD 7500M 2GB Details So now that you know some basics about my computer, I'll get to the problem. Being an Ubuntu user I hardly use Windows, but occasionally I do. Like to run Skyrim and other games incompatible with Linux and WINE. The new Sims 3 Seasons patch is also now not supported. When playing these two games and other ones, theoretically. I have also heard others saying that while watching HD movies and video series it also happens. While watching the bluescreen as it happens, I see it is the 'atikmpag.sys' error. I have not installed much and nothing significant. I think I have downloaded Skyrim, Firefox and The Sims 3. I haven't done much more... since Ubuntu is definitely the best in comparison! (No hate, just a joke :P). I can reproduce it easily (just by running a game for less than a minute). It is always there each time, but it's never at a specific time or anything. So far I have found that it may be caused by lack of power to the graphics card, or it may be damaged or fried. Since I've had the computer for a mere 4 months (and have had other problems with it also). I have contacted Dell but they are useless beyond belief. Anyone with any information, solutions or details are encouraged to share your knowledge, as it would be immensely appreciated.

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  • Domain joined computer unable to access servers through VPN

    - by kscott
    Our servers are in a virtual off site hosting center, our office has a vpn connection to the data center, but for reasons I don't understand we also have to connect to the Citrix Access Gateway (CAG) client in order to access the servers. I am a programmer with rather limited ops knowledge including a weak grasp of networking and terminology. Bear with me. I was just given a new laptop, which is a 64 bit Windows 7 system unlike my previous 32 bit Windows XP desktop which was able to connect without issue. My laptop has been joined to the domain so that I login with my AD credentials, I am able to connect to the CAG and get authenticated, and after doing this I can ping our servers and they resolve to the correct internal IP addresses, but I am unable to use remote desktop to the servers, connect to SQL servers through my local SQL Management Studio, navigate to them through the file system, or view any of our internal intranet websites. All of which I was able to do previously. I have tried turning off my Windows firewall and the problem remains, the DNS servers are set to the correct IPs of our domain controllers, and the ops guys here are a little stumped. Does any one have any suggestions?

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  • Checkpoint VPN-1 R60 and Windows 7 64 Bit Client

    - by Mohit
    As per my knowledge of checkpoint VPN-1. My company is using checkpoint VPN-1 R 60 ( I guess as I dont know how to check server version) Firewall(VPN Server). Now the problem is that I installed Windows 7 64 bit. But, after my research I found that there are not even one client (SecuRemote/SecuClient) for Win7 64 bit, when Firewall or server is R60. I thought of some open source solutions. Can you guys please suggest me some with the configuration required. As of now, I know the IP of the server. I know my username and password using which I connect and that is not my domain password. that i can confirm to you guys. I am not a network guy. I am more of a developer. But, I need some help in this.So, let me know if I can provide you more details. Please please i need urgent help on this.

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  • Menu command stuck on screen

    - by 280Z28
    For some reason, periodically when I select a menu command, the command label gets "stuck" on the screen and won't go away. I can close all open applications, including whichever one I was using when it got stuck, but it still won't go away. In the screenshot below, I opened an new instance of IE just to show how the label stays on top. The label was not created by this instance of IE. Edit with the source: The label that gets stuck is the first menu command I select in IE. If a label is already stuck, a new one does not get stuck (regardless of which instance(s) of IE are involved). Based on this knowledge, I now just open IE on my secondary monitor, carefully open the context menu so the Properties command is in the bottom corner, and click it. This is not a solution... The label never moves and is transparent to mouse input (if I click it, it's as if I clicked the item behind it). The label does not go away if I close all running applications. I haven't tried stopping services or closing system tray items like Live Mesh. The label does go away if I change the screen resolution and then change it back. Any ideas how I can stop this from happening? It's happened a half dozen times since yesterday and it's becoming quite disrupting to my work. Obviously I added the circle in MS Paint. That part isn't stuck. ;)

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  • How is Apache still working?

    - by PJ
    Recently, I decided to set up a local development environment for my work projects. I'm a PHP developer, with just enough knowledge of Linux and Apache to break things mightily. To get the local environment looking like my work environment, I had to upgrade PHP. When I did, Apache wouldn't restart. I decided I wanted to start fresh (this is where things went wrong) and that I'd reinstall Apache and PHP using MacPorts. So, I went through and tried to delete all the Apache files. Yup. I ran locate apache2 and deleted any folders that looked important. (I know, I know) Then I did a /usr/libexec/locate.updatedb to make sure everything was up to date. I even restarted my machine, just to make sure. The issue is, http://localhost still works. As does an alias I set up, http://butler. Shouldn't they not work? Now that I'm this far in, are there any tips for how to completely remove Apache so I can start over? Worst case, I have a timemachine backup, so I can always just restore that... Thanks in advance.

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  • Recovering Data from a Linkstation LS-WXL/R1

    - by kingkool68
    I've been running a Buffalo Linkstation LS-WXL/R1 in RAID1 for a few weeks. Two nights ago we had a brief power outage. Yesterday when I tried to mount the disk it couldn't be found. I logged in to the web admin and it couldn't see any storage attached and no arrays available. Well this sucks. I ended up taking the disks out and mounting them to an Ubuntu virtual machine. They how up as an Array but I can't start the Array to the best of my limited knowledge. I could still see the 6 partitions, so I'm confident the data is there. I can use Photorec (http://www.cgsecurity.org/wiki/PhotoRec) to recover most of the files I want, it just takes some time. Could I make an image of the data partition and mount that in Ubuntu so I can get at the data I want through the file system? 95% of the data on my Linkstation LS-WXL/R1 is backup. I just put a few folders of images on there that I need to get back. I'm already preparing to format the disks when I'm done and re-building the RAID1 array from scratch. Any advice would be appreciated.

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  • Dell fumbles OpenManage installation process, forgets to write documentation?

    - by bwerks
    Hi all, I'm setting up a Dell PowerEdge 2950 for a small business, and I've just spent a while with Dell OpenManage Server Administrator 6.2, trying to clear the installation process of errors before I execute it. Right now I'm getting the following warning from the installer. The installer has detected that the HTTPS listener is not configured for Windows Remote Management. You can either configure the HTTPS listener before installing Remote Enablement, or install Remote Enablement now by selecting the "Custom" installation screen and configure the HTTPS listener later. See the "Remote Enablement Requirements" section in the "Dell OpenManage Installation and Security User's Guide" for information on configuring the HTTPS listener. Note: Remote Enablement is required to manage this system from a remote Server Administrator Web Server and is applicable only for those systems that support Server Instrumentation. Click here to configure HTTPs Listener for Windows Remote Management. The italicized line is a link, which executes...something...via cmd, and doesn't seem to help the problem. Not knowing exactly what to do here, I consulted the documentation. I read through the Setup and Administration section of the User's Guide, but all that it contained was a weird primer on role-based security and some SNMP stuff. The next section skips installation entirely and moved on to features of the suite. Thinking myself crazy, I consulted the readme, which told me that for installation I should consult the "Dell OpenManage Installation and Security Version 6.2 User's Guide" which not only doesn't exist in the documentation, but also not in all of google? Soo yeah, if anyone is familiar with this problem, drop me some knowledge!

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  • Bare-metal virtualisation for the desktop

    - by Andrew Taylor
    Hi, Does anyone have any knowledge about bare-metal virtualisation products? I'm interested in building a new desktop machine for home, I've been looking at the Intel Quad Core processors and I'd like to put 8GB of RAM in there, but, it got me thinking about making the most out of the available resources. I thought if I could get a good 64bit machine, put some bare-metal virtualisation on, then have a primary system, I'd also be able to bring up some extra virtualised systems as and when I needed. I know most of the bare metal systems are designed for the server market, but, is there anything out there that works well for a desktop. What are the caveats? I presume I won't be able to make the most out of any video cards I could buy, what about just getting a decent screen resolution, will this be a problem? I run a single 24" screen. What about DVD/CD writing, is this possible? I'd like to re-rip my CD collection, I was hoping the quad 64Bit goodness would help me out with the encoding. I currently use a Mac and couldn't go back to windows so that leaves Linux, I was thinking a primary OS of ubuntu. Does this make a difference? Thanks Andrew

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  • Hubs/switches taking out switches?

    - by Bart Silverstrim
    Here's the issue...we have a network with a lot of Cisco switches. Someone plugged in a hub on the network, and then we started seeing "weird" behavior; errors in communication between clients and servers, or network timeouts, dropping network connections, etc. It seemed that somehow that hub (or SOHO switch) was particularly freaking out our Cisco 3700 series switches. Disconnect that hub or netgear-type SOHO switch and things settled down again. We're in the process of trying to get a centralized logging server for SNMP and management, etc., to see if we can trap errors or narrow down when someone does this sort of thing without our knowledge because things seem to work, for the most part, without issue, we just get freaky oddball incidents on particular switches that don't seem to have any explanation until we find out someone decided to take matters into their own hands to expand available ports in their room. Without getting into procedure changes or locking down ports or "in our organization they'd be fired" answers, can someone explain why adding a small switch or hub, not necessarily a SOHO router (even a dumb hub apparently caused the 3700's to freak out) sending DHCP request out, will cause issues? The boss said it's because the Cisco's are getting confused because that rogue hub/switch is bridging multiple MAC's/IP's into one port on the Cisco switches and they just choke on that, but I thought their routing tables should be able to handle multiple machines coming into the port. Anyone see that behavior before and have a clearer explanation of what's happening? I'd like to know for future troubleshooting and better understanding that just waving my hand and saying "you just can't".

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  • HyperV - low CPU usage

    - by Klark
    I am very new to HyperV and virtual machine philosophy in general, so please expect more or less nooby questions :) I have a server that is only used as a host for virtual machines. OS is windows server 2008 R2 and it is running on 16 CPU and 48 GBs of RAM. On aforementioned server there are 8 VMs, each having 4 CPUs and 4 GBs of RAM. On those VMs we are running some CPU intensive tasks. Each machine has nearly 100% cpu usage. After I noticed slow performance I went to the host machine and started playing with process explorer. It turned out that cpu usage is very low. Also I/O is very low, and of course, memory consumption is high, which is expected. Of course, I don't expect that those 4 virtual cores dedicated to a VM work as fast as real, hardware 4 cores, but still I expected a higher consumption of real hardware. Is this sort of behaviour normal? I see that the most of CPU usage on host machine are marked as interrupts (which I guess is normal) and all those interrupts are passed to only one core (which is strange). Are there out of box optimization that I could perform to finally use all that processing power that is under the hood. My knowledge of virtualization technology is near to embarrassing, so I would be grateful for any links that could enlightened me :) Thanks.

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  • Free web-based software for team collaboration/documentation

    - by Jason Antman
    Looking for some advice here, as my search has turned up to be pretty fruitless. My group (9 people - SAs, programmers, and two network guys) is looking for some sort of web tool to... ahem... "facilitate increased collaboration" (we didn't use a buzzword generator, I swear). At the moment, we have an unified ticketing system that's braindead, but is here to stay for political/logistical reasons. We've got 2 wikis ("old" and "new"), neither of which fulfill our needs, and are therefore not used very often. We're looking for a free (as in both cost and open source) web-based tool. Management side: Wants to be able to track project status, who's doing what, whether deadlines are being met, etc. Doesn't want full-fledged "project management" app, just something where we can update "yeah this was done" or "waiting for Bob to configure the widgets". TeamBox (www.teambox.com) was suggested, but it seems almost too gimmicky, and doesn't meet any of the other requirements: Non-management side: - flexible, powerful wiki for all documentation (i.e. includes good tables, easy markup, syntax highlighting, etc.) - good full text search of everything (i.e. type in a hostname and get every instance anyone ever uttered that name) - task lists or ToDo lists, hopefully about to be grouped into a number of "projects" - file uploads - RSS or Atom feeds, email alerts of updates We're open to doing some customizations (adding some features, notification/feeds, searching, SVN integration, etc.) but need something F/OSS that will run under Apache. My conundrum is that most of the choices I've found so far fall into one of these categories: project management/task tracking with poor wiki/documentation/knowledge base support wiki with no task tracking support ticketing system with everything else bolted on (we already have one that we're stuck with) code-centric application (we do little "development", mostly SA work) Any suggestions? Or, lacking that, any comments on which software would be easiest to add the lacking features to (hopefully ending up with something that actually looks good and works well)?

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  • How do I keep a table in sync across multiple SQL Databases?

    - by Refracted Paladin
    I have a Win Form, Data Entry, application that uses 4 seperate Data Bases. This is an occasionally connected app that uses Merge Replication (SQL 2005) to stay in Sync. This is working just fine. The next hurdle I am trying to tackle is adding Filters to my Publications. Right now we are replicating 70mbs, compressed, to each of our 150 subscribers when, truthfully, they only need a tiny fraction of that. Using Filters I am able to accomplish this(see code below) but I had to make a mapping table in order to do so. This mapping table consists of 3 columns. A PrimaryID(Guid), WorkerName(varchar), and ClientID(int). The problem is I need this table present in all FOUR Databases in order to use it for the filter since, to my knowledge, views or cross-db query's are not allowed in a Filter Statement. What are my options? Seems like I would set it up to be maintained in 1 Database and then use Triggers to keep it updated in the other 3 Databases. In order to be a part of the Filter I have to include that table in the Replication Set so how do I flag it appropriately. Is there a better way, altogether? SELECT <published_columns> FROM [dbo].[tblPlan] WHERE [ClientID] IN (select ClientID from [dbo].[tblWorkerOwnership] where WorkerID = SUSER_SNAME()) Which allows you to chain together Filters, this next one is below the first one so it only pulls from the first's Filtered Set. SELECT <published_columns> FROM [dbo].[tblPlan] INNER JOIN [dbo].[tblHealthAssessmentReview] ON [tblPlan].[PlanID] = [tblHealthAssessmentReview].[PlanID] P.S. - I know how illogical the DB structure sounds. I didn't make it. I inherited it and was then told to make it a "disconnected app." Go figure!

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  • How to get multipath working for Ubuntu Server 12.04

    - by mlampi
    I'm working on a project which aims to make use of Ubuntu servers running on enterprise class hardware. In our case that means IBM HS23E blade servers, QLogic 4GB fibre channel extension cards and quite old IBM DS4500 disk array with two controllers. At the moment we have fibre channel as only boot option and Ubuntu Server 12.04 installed just fine and is able to boot without multipath. I'm not a linux professional myself but in our team we have people who will understand the technical stuff. Don't let my post confuse :) The current situation is that we have only one fibre channel connection to a single disk array controller. Real life case would be of course quite different. At minimum we should have two fibre channel ports connected to two different switches and two different controllers. However, we have no idea how to set up multipath tool. Is the DM-MPIO the right software? At minimum we should be able to boot when multiple connections are available and achieve fault tolerance when any of them should be down. Since the disk array is not the latest hardware, I managed to find RDAC driver sources only for 2.6.x kernel. And we have 3.2.x. Another issue is to build a multipath.conf. The said driver sources are from IBM support and the QLogic drivers provided to Ubuntu installer are from Ubuntu site. It seems that RHEL and SLES would have near out of the box support but that is not an option for our project. Actual questions: - What is the recommended software tool for multipath for Ubuntu Server 12.04? - Is there available pre-made configurations or templates? Does it require disk array / controller specific settings or do a more generic config work? - Do you have expriences on similar setup and like to share the knowledge? I'll provide you with any additional information you might require. Thanks in advance.

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  • Why is SMF manifest losing configuration data when exported on SmartOS?

    - by Scott Lowe
    I'm running a server process under SMF (Server Management Facility) on Joyent's Base64 1.8.1 SmartOS image. For those not aqauinted with SmartOS, it is a cloud-based distribution of IllumOS with KVM. But essentially it is like Solaris and inherits from OpenSolaris. So even if you've not used SmartOS, I'm hoping to tap into some Solaris knowledge on ServerFault. My issue is that I want an unprivileged user to be allowed to restart a service that they own. I have worked out how to do that by using RBAC and adding an authorisation to /etc/security/auth_attr and associating that authorisation with my user. I then added the following to my SMF manifest for the service: <property_group name='general' type='framework'> <!-- Allow to be restarted--> <propval name='action_authorization' type='astring' value='solaris.smf.manage.my-server-process' /> <!-- Allow to be started and stopped --> <propval name='value_authorization' type='astring' value='solaris.smf.manage.my-server-process' /> </property_group> And this works well when imported. My unprivileged user is allowed to restart, start and stop its own server process (this is for automated code deployments). However, if I export the SMF manifest, this configuration data is gone... all I see in that section is this: <property_group name='general' type='framework'> <property name='action_authorization' type='astring'/> <property name='value_authorization' type='astring'/> </property_group> Does anybody know why this is happening? Is my syntax wrong, or am I simply not using SMF incorrectly?

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  • Linux Tuning for High Traffic JBoss Server with LDAP Binds

    - by Levi Stanley
    I'm configuring a high traffic Linux server (RedHat) and running into a limit I haven't been able to track down. I need to be able to handle sustained 300 requests per second throughput using Nginx and JBoss. The point of this server is to run checks on a user's account when that user signs in. Each request goes through Nginx to JBoss (specifically Torquebox with JBoss A7 with a Sinatra app) and then makes an LDAP request to bind that user and retrieve several attributes. It is during the bind that these errors occur. I'm able to reproduce this going directly to JBoss, so that rules out Nginx at least. I get a variety of error messages, though oddly JBoss stopped writing to the log file recently. It used to report errors about creating native threads. Now I just see "java.net.SocketException: Connection reset" and "org.apache.http.conn.HttpHostConnectException: Connection to http://my.awesome.server:8080 refused" as responses in jmeter. To the best of my knowledge, I have plenty of available file handles, processes, sockets, and ports, yet the issue persists. Unfortunately, I have very little experience tuning servers. I've found a couple useful documents - Ipsysctl tutorial 1.0.4 and Linux Tuning - but those documents are a bit over my head (and just entering the the configuration described in Linux Tuning doesn't fix my issue. Here are the configuration changes I've tried (webproxy is the user that runs Nginx and JBoss): /etc/security/limits.conf webproxy soft nofile 65536 webproxy hard nofile 65536 webproxy soft nproc 65536 webproxy hard nproc 65536 root soft nofile 65536 root hard nofile 65536 root soft nproc 65536 root hard nofile 65536 First attempt /etc/sysctl.conf sysctl net.core.somaxconn = 8192 sysctl net.ipv4.ip_local_port_range = 32768 65535 sysctl net.ipv4.tcp_fin_timeout = 15 sysctl net.ipv4.tcp_keepalive_time = 1800 sysctl net.ipv4.tcp_keepalive_intvl = 35 sysctl net.ipv4.tcp_tw_recycle = 1 sysctl net.ipv4.tcp_tw_reuse = 1 Second attempt /etc/sysctl.conf net.core.rmem_max = 16777216 net.core.wmem_max = 16777216 net.ipv4.tcp_rmem = 4096 87380 16777216 net.ipv4.tcp_wmem = 4096 65536 16777216 net.core.netdev_max_backlog = 30000 net.ipv4.tcp_congestion_control=htcp net.ipv4.tcp_mtu_probing=1 Any ideas what might be happening here? Or better yet, are there some good documentation resources designed for beginners?

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