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  • Network Load Balancing, intermittent port problem

    - by Jimmy Chandra
    Trying to troubleshoot an intermittent problem. I think it might be related to an NLB issue. We are using Windows Network Load Balancing to balance load for our multiserver SharePoint front ends. Say... Web Front End 1 IP is 192.168.1.100 and Web Front End 2 IP is 192.168.1.101, the NLB is setup to load balance both WFE servers on any incoming traffic to the IP 192.168.1.200. Sometimes we got an intermittent issue where when we try to access the SharePoint site using 192.168.1.200:8080 (say the site is set up to run on port 8080) from a remote client, it will display page not found. Pinging the 192.168.1.200 will give responses, but when trying to telnet to 192.168.1.200:8080 it just won't connect. However, browsing the SharePoint site directly on individual WFE (192.168.1.100 and 192.168.1.101) show no problem whatsoever. My guess also (we didn't get a chance to try it yet, but I think it should work), if I try connecting remotely to individual server, it will respond just fine. But any attempt on trying to connect using the virtual IP (192.168.1.200) will fail miserably. Funny thing is, after a while it will return back to normal. Anyone had similar experience with this type of problem while implementing NLB before? We are doing this in a virtual environment.

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  • Best solution for High Availability and SSRS on SQL Server 2008 R2?

    - by Chandra
    I have 2 Physical Servers with SQL Server 2008 R2. – SQL Server 1(Active) & SQL Server 2 (Passive) Web Application is developed using .Net 4.0 Framework. I want to know the best solution to have high availability and also have SSRS for reporting. Planned solution: Mirroring for Failover, and Transaction Replication for SSRS as the mirrored database can only be used for failover scenarios. SSRS will be on the Passive server, to reduce the load on the Active server. Let me know if the solution is correct. Also suggest alternate approaches.

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  • How to Load Balance 2 Internet Connections on a Windows 7 machine?

    - by Jimmy Chandra
    It's sort of related to this particular question, but that one is on Mac. I am looking for similar solution on Windows 7. I have 2 network connections: (Connection A) Wireless terminal connecting to ISP A (3G / EVDO internet provider) (Connection B) Broadband wired connection connecting to ISP B (Cable internet provider) Both has access to the internet. When I try connecting to a website and checking the networking tab on my Task Manager, I only see the network traffic being routed to only Connection A. Is there a way to make the computer to utilize both network (in a sense using all the bandwidth available from both the Cable ISP and the 3G / EVDO ISP) at the same time? If so, what do I need to do to set this up ... on Windows 7? Here is a bit more info on my network connections (ipconfig /all): PPP adapter Wireless Terminal: IPv4: aa.bb.ccc.ddd(preferred) Subnet mask: 255.255.255.255 Default Gateway: 0.0.0.0 DNS: aa.ee.f.ggg aa.ee.f.hhh Primary Wins: jjj.ii.k.l Secondary Wins: jjj.ii.k.m Ethernet adapter LAN: IPv4: 192.168.1.100 (connected to a router by wired that itself connect to a cable modem) subnet mask: 255.255.255.0 Default gateway: 192.168.1.1 (the wireless router) DHCP: 192.168.1.1 (the wireless router) DNS: xxx.yy.zz.ww rr.sss.t.uuu For my own privacy, I don't believe the actual number matters, the patterns are representative of the ip numbering scheme...

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  • Network Load Balancing, intermittent port problem on Windows Server 2008

    - by Jimmy Chandra
    Trying to troubleshoot an intermittent problem on a Windows Server 2008 NLB. I think it might be related to an NLB issue. We are using Windows Network Load Balancing to balance load for our multiserver SharePoint front ends. Say... Web Front End 1 IP is 192.168.1.100 and Web Front End 2 IP is 192.168.1.101, the NLB is setup to load balance both WFE servers on any incoming traffic to the IP 192.168.1.200. Sometimes we got an intermittent issue where when we try to access the SharePoint site using 192.168.1.200:8080 (say the site is set up to run on port 8080) from a remote client, it will display page not found. Pinging the 192.168.1.200 will give responses, but when trying to telnet to 192.168.1.200:8080 it just won't connect. However, browsing the SharePoint site directly on individual WFE (192.168.1.100 and 192.168.1.101) show no problem whatsoever. My guess also (we didn't get a chance to try it yet, but I think it should work), if I try connecting remotely to individual server, it will respond just fine. But any attempt on trying to connect using the virtual IP (192.168.1.200) will fail miserably. Funny thing is, after a while it will return back to normal. Anyone had similar experience with this type of problem while implementing NLB before? We are doing this in a virtual environment.

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  • Normal check interval and re try check interval doesnot work in nagios

    - by chandra
    I have configured nagios in my environment and i have used the following setting for a service which monitors the disk space for every 10 min , Normal check interval =10 min retry check interval = 1 min Maximum attempts =2 But accoring to this values i should recieve my first alert after 10 min and then from there for every 1 min. But in my case i am recieving my first alert and then next alert comes to me after 20 min. Can some one help me in fixing this.

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  • Windows 7 Group Policy to display message for login tries left before account lock

    - by Vivek
    My requirement is to display the the remaining count left on the login screen when user trying to login using Windows 7 OS before account lock in case user enter invalid password. I am having Active Directory on Windows 2008 R2 server. I set the maximum Lockout count = 5 in GPO policy. Example: If user try login first 1 attempt is failed, next time enter password and login shold show message for remaining attemps left.( my case count 4 left) Please let me know as this is urgent for me.

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  • Is there any way to abstract IP address during ssh?

    - by Vivek V K
    I have a server which is in the middle of a forest. It is connected to the Internet via a microwave link and an ADSL link.Hence it has two different static IP addresses. Now if there is heavy rain, the microwave link breaks and I should use the much slower ADSL link. And I ping the microwave ip time to time to check if it is up again . But at times, I end up using the very slow ADSL link even if the microwave link is back up. Hence I need a way to automate this in the following way. 1.I need to abstract the IP address of the machine with some other name which when I use ssh or sftp, will poll both the IP and connect me to the best one. so for eg: if I say ssh -Y name@server, It should first try to connect to the microwave link if it cant, then connect to ADSL. 2.Suppose the first time I connect, the microwave link is down so it connects to ADSL, I need it to dynamically change to the microwave link once it is working again. Is this even possible?

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  • Networking 2 Virtual PC with one VPC as DHCP server

    - by vivek
    My host OS is Win XP Professional. The host has a real network connection via DSL and I created a second network connection using Microsoft Loopback Adapter. Internet connection sharing is enabled. The Microsoft Loopback adapter has a IP address of 192.168.0.1. I have 1 Virtual PC which has Windows Server 2003. I have setup the network connection on this VPC to use Microsoft Loopback Adapter. I setup this VPC to be the Domain Controller , DNS Server and DHCP Server. I set this to a static IP address 192.168.0.2 (on the same subnet as the MS Loopback adapter) I have a second Virtual PC which also has Windows Server 2003. The network connection on this VPC is set to "Local Only". I want this VPC to get its IP address from the 1st VPC on which I setup as a DHCP server. What i want is the 2 VPC should be in a network with one of the VPC acting as the domain controller, DNS Server and DHCP server. The second VPC shoud get its IP address from the 1st VPC. It should be a part of the domain of the 1st VPC. When i tried to make the second VPC get the IP address from the first VPC I am not succeeding. Can somebody post some suggestions on how to go about this ?

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  • What is a HD Webcam?

    - by Vivek
    It seems like a stupid question, but really what is the difference between a webcam and a HD webcam? There are several webcams that can do 1280x786 or more, so what makes HD webcams HD?

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  • Problem in installing & configuring bugzilla

    - by VIVEK
    Can somebody help me in installing bugzilla (list out exact steps if possible) on Windows Server 2008 with IIS 7.0 , Mysql 5.1 & existing email server(already configured)? I followed installation steps from many posts & also your site , everything goes right but when I start to creating accounts by sending email in bugzilla web panel, I get error:- “There was an error sending mail from 'bugzilla-daemon@' to '[email protected]':Can't call method "address" on an undefined value at C:/Program Files (x86)/Bugzilla/perl/perl/site/lib/Email/Send/SMTP.pm line 25.” I also tried installing through Windows installer, but same issues. Please any help would be appreciated. Expecting quick response.

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  • Any way to know if two ip address points to the same machine?

    - by Vivek V K
    Is there anyway to find if two different IP address in two different network actually points to the same physical device? I need it in Linux. Edit - I have the same server(a raspberry pi) connected via 2 intranets to my client. I don't know the IP address of the server as it is DHCP. The crude way to do is to reach the raspberry pi from one intranet and check with ifconfig to find the ipadress of the machine in the other Intranet. I want to know if there is any other way I can do it? I know the mac address of the machine.But I don't know how do I find the Ipadress based on the mac address.

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  • Account Preferences Crashes

    - by Vivek Sundaram
    When I click on System Preferences Accounts, I get a crash [every single time]. Here are a few interesting snippets from the "Problem Report". Any ideas on how to tackle this? Process: System Preferences [607] Path: /Applications/System Preferences.app/Contents/MacOS/System Preferences Identifier: com.apple.systempreferences Version: 7.0 (7.0) Build Info: SystemPrefsApp-1750100~5 Code Type: X86-64 (Native) Parent Process: launchd [184] OS Version: Mac OS X 10.6.5 (10H574) Exception Type: EXC_BAD_ACCESS (SIGSEGV) Exception Codes: KERN_INVALID_ADDRESS at 0x0000000117547860 Crashed Thread: 0 Dispatch queue: com.apple.main-thread Application Specific Information: objc_msgSend() selector name: willSelect objc[607]: garbage collection is ON Thread 0 Crashed: Dispatch queue: com.apple.main-thread 0 libobjc.A.dylib 0x00007fff80fd211c objc_msgSend + 40 1 com.apple.systempreferences 0x0000000100008426 0x100000000 + 33830 2 com.apple.systempreferences 0x0000000100006fb8 0x100000000 + 28600 3 com.apple.Foundation 0x00007fff84ede23c __NSFireDelayedPerform + 404 4 com.apple.CoreFoundation 0x00007fff824acbe8 __CFRunLoopRun + 6488 5 com.apple.CoreFoundation 0x00007fff824aadbf CFRunLoopRunSpecific + 575 6 com.apple.HIToolbox 0x00007fff82ec691a RunCurrentEventLoopInMode + 333 7 com.apple.HIToolbox 0x00007fff82ec671f ReceiveNextEventCommon + 310 8 com.apple.HIToolbox 0x00007fff82ec65d8 BlockUntilNextEventMatchingListInMode + 59 9 com.apple.AppKit 0x00007fff866c0e64 _DPSNextEvent + 718 10 com.apple.AppKit 0x00007fff866c07a9 -[NSApplication nextEventMatchingMask:untilDate:inMode:dequeue:] + 155 11 com.apple.AppKit 0x00007fff8668648b -[NSApplication run] + 395 12 com.apple.AppKit 0x00007fff8667f1a8 NSApplicationMain + 364 13 com.apple.systempreferences 0x0000000100001cf4 0x100000000 + 7412 ... Thread 0 crashed with X86 Thread State (64-bit): rax: 0x0000000000000001 rbx: 0x0000000200037840 rcx: 0x0000000200058031 rdx: 0x00007fff5fbfe2c0 ... Binary Images: 0x100000000 - 0x10001eff7 com.apple.systempreferences 7.0 (7.0) <30C04F1A-7711-1359-8A0E-D707B8BF2EB4> /Applications/System Preferences.app/Contents/MacOS/System Preferences 0x100758000 - 0x10076dfff com.apple.frameworks.opendirectoryconfigui 10.6.4 (10.6.4) <4711F2E8-DFA5-4C81-BB2A-B1E39D5B1B91> /System/Library/PrivateFrameworks/OpenDirectoryConfigUI.framework/Versions/A/OpenDirectoryConfigUI ...

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  • Getting a black laptop screen

    - by Vivek
    I get a black screen when I boot my laptop. The laptop was in sleep mode initially, so when I pressed the power button, it looked as if it woke up from sleep mode, but the screen was blank. So, I held down the power button to force shutdown the laptop and then removed the battery. But after booting the laptop the screen still remains black. The bios/boot screen remains black as well. I have tried connecting it to external hdmi/vga/s-video devices and booting still no go. Windows loads fine, as I can type the password and get the 'Ding', then alt-f4 and shutdown windows. If it helps, the laptop model is Asus G1S-A1. Thanks in advance!

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  • Networking 2 Virtual PC with one VPC as DHCP server

    - by vivek
    My host OS is Win XP Professional. The host has a real network connection via DSL and I created a second network connection using Microsoft Loopback Adapter. Internet connection sharing is enabled. The Microsoft Loopback adapter has a IP address of 192.168.0.1. I have 1 Virtual PC which has Windows Server 2003. I have setup the network connection on this VPC to use Microsoft Loopback Adapter. I setup this VPC to be the Domain Controller , DNS Server and DHCP Server. I set this to a static IP address 192.168.0.2 (on the same subnet as the MS Loopback adapter) I have a second Virtual PC which also has Windows Server 2003. The network connection on this VPC is set to "Local Only". I want this VPC to get its IP address from the 1st VPC on which I setup as a DHCP server. What i want is the 2 VPC should be in a network with one of the VPC acting as the domain controller, DNS Server and DHCP server. The second VPC shoud get its IP address from the 1st VPC. It should be a part of the domain of the 1st VPC. When i tried to make the second VPC get the IP address from the first VPC I am not succeeding. Can somebody post some suggestions on how to go about this ?

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  • Samba Server needs to have AD authentication

    - by vivek
    My Linux server is connected to AD via Bind DN and password (without domain joining). It is using sssd for authentication. I am able to ssh and login without any issue. I have a proper setup of uid and guid, etc. .. There is no issue with logging to the linux server. I want the samba service to use AD accounts, but I can't find documentation for how to configure it in this case. Can anyone explain how to configure samba to use active directory for authentication on a system using sssd?

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  • Thunderbird-3 keeps on downloading already downloaded messages again?

    - by Vivek Sharma
    I am using Thunderbird for my gmail account, with IMAP settings. All my folders are synchronized. A very strange behavior, after all my mails are downloaded, TB3 starts downloading email again. At times saying "downloading x out of y messages" where x y (like now downloading 19 out of 11 messages). Had the same problem in TB3 for windows so, replaced TB with Outlook-07, issue resolved. But on linux, I dont like the evolution's interface, so i have no choice but to stick to TB. Any suggestions how to TB not eat my bandwidth.

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  • Wordpress on IIS 7

    - by Vivek
    What will be your preferred way of installing and configuring Wordpress on IIS 7. Would you prefer using WPI (Web Platform Installer)? Would you prefer manual download, install and configure PHP, mySQL and Wordpress?

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  • Providing internet access to users in an Enterprise (MPLS ) Network

    - by Vivek Bernard
    Scenario I'm planning to setup a typical Head Office - Branch Office(s) Network Setup. there will be 25 branch offices in India of two will be overseas (one in US and the other in UK). All these will be connected via MPLS. Additional details: No of Concurrent users in each office is going to be 25 tranlating to 650 users The requirement is to provide "proxied" internet connectivity to the branch offices. How should I go about doing it? Plan A: Buying an internet leased line in the Head Office and distribute it through an internal proxy server to all the branches Plan B Buying separate internet lines for all the branches and setup individual proxies to all the branch offices.

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