Performance

Discussion in 'Server Setup' started by Zak, Apr 16, 2009.

  1. Zak

    Zak Guest

    Hello

    Please can you assist with the following:

    I have Server 2003, with exchange 2003 and SQL 2005, and I hae been
    expereicing performance issues for a while now.

    These are the problems we are experiencing:

    When we logon in out PC it take a few minutes for the PC to load the network
    setting etc and before this used to take well under a minute.
    Our outlook connection to exchange is being constantly lost and reconnected.
    From time to time we have to wait for the network drives and folder to
    display it contents.
    When we are using out accounting system we get write delays errors to the
    server.
    If I connect to the server using remote destop I get connection lost and the
    remote desktop keeps trying to reconnect.

    The most common problem is the delays in loging on and accessing the shared
    drives/folder, but from time to time we experience all of the problems at
    once, especially after we reboot the server.

    These problems started at the end of last year. I downloaded in installed
    server 2003 SP2 which solved the problems. However after a shutdown and
    restarted the server last week due to power maintance the problems are back.
    I have done a windows update which did not solved my problems, and I have
    also checke for virus. I have also updated the nic drivers to the latest
    available drivers.
     
    Zak, Apr 16, 2009
    #1
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  2. Can you post an un edited IPconfig /all from one of the affected computers?


    DDS
     
    Danny Sanders, Apr 16, 2009
    #2
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  3. Zak

    Zak Guest

    Hello

    See below, I think the problem is on the server, as when the problem occurs
    i can ping other pc and ther server from any of the pc, but i can't ping the
    pc's router or printers from the server.

    Microsoft Windows XP [Version 5.1.2600]
    (C) Copyright 1985-2001 Microsoft Corp.

    C:\Documents and Settings\Zakaria.ANZA>ipconfig /all

    Windows IP Configuration

    Host Name . . . . . . . . . . . . : anza2
    Primary Dns Suffix . . . . . . . : ANZA.local
    Node Type . . . . . . . . . . . . : Hybrid
    IP Routing Enabled. . . . . . . . : No
    WINS Proxy Enabled. . . . . . . . : No
    DNS Suffix Search List. . . . . . : ANZA.local
    ANZA.local

    Ethernet adapter Local Area Connection:

    Connection-specific DNS Suffix . : ANZA.local
    Description . . . . . . . . . . . : VIA Rhine II Fast Ethernet Adapter
    Physical Address. . . . . . . . . : 00-1A-4D-22-12-76
    Dhcp Enabled. . . . . . . . . . . : Yes
    Autoconfiguration Enabled . . . . : Yes
    IP Address. . . . . . . . . . . . : 192.168.0.10
    Subnet Mask . . . . . . . . . . . : 255.255.255.0
    Default Gateway . . . . . . . . . : 192.168.0.2
    DHCP Server . . . . . . . . . . . : 192.168.0.1
    DNS Servers . . . . . . . . . . . : 196.25.1.11
    196.43.1.11
    192.168.0.1
    Primary WINS Server . . . . . . . : 192.168.0.1
    Lease Obtained. . . . . . . . . . : 16 April 2009 08:01:23 AM
    Lease Expires . . . . . . . . . . : 17 April 2009 08:01:23 AM
     
    Zak, Apr 16, 2009
    #3
  4. DNS Servers . . . . . . . . . . . : 196.25.1.11

    Actually this is your problem. I am assuming that 192.168.0.1 is your Domain
    controller /DHCP/DNS server?

    If so this is the only server you should assign to your clients for DNS. I'm
    guessing 196.25.1.11 and 196.43.1.11 are your ISP's DNS servers?

    If so they should NEVER be listed on an AD client or you will see exactly
    the problems you are experiencing. The only place on an AD domain your ISP's
    DNS servers should be listed is as a forwarder on the DNS server.

    See:
    Setting Up the Domain Name System for Active Directory
    http://support.microsoft.com/default.aspx?scid=kb;en-us;237675

    Best Practices for DNS Client settings in Windows 2000 server and in Windows
    Server 2003
    http://support.microsoft.com/default.aspx?scid=kb;en-us;825036

    How to configure DNS for Internet access in Windows Server 2003
    http://support.microsoft.com/default.aspx?scid=kb;en-us;323380

    hth
    DDS


     
    Danny Sanders, Apr 16, 2009
    #4
  5. Zak

    Zak Guest

    Hello Danny

    Basically my problem is that my ISP DNS IPs which is been distributed
    throught the DHCP, and all I need to do is set up a fordward with these
    address?

    Before you answer, remember the gateway of 192.168.0.2 is our router.

    Zak
     
    Zak, Apr 16, 2009
    #5
  6. Yes. You don't want your AD clients using any other DNS server except for
    the DNS server setup for the AD domain.

    Basic AD DNS setup is install DNS on the domain controller and point the DC
    to itself in the properties of TCP/IP. Use hte actual IP address not
    127.0.0.1. This allows the DC to register the SRV record the AD clients must
    find in order to "find" the domain. Point all AD clients to the DNS server
    setup for the AD domain ONLY. Servers are AD clients also.
    For internet access configure forwarders on your AD DNS server and list your
    ISP's DNS servers as the forwarder.

    Any resources on the AD domain the client needs is found in the DNS zone on
    the DC. (that is why all AD clinets ate pointed to this DNS zone so they can
    register their DNS record for other clients to find and so they can fild AD
    resources.

    If it is not found in your AD DNS zone (the entire internet) it is sent to
    the default gateway and out to be resolved by you ISP's DNS server.

    I'm surprised your Domain was working at all. Your AD Domain controller
    server was pointed to your ISP's DNS servers. It must register its SRV
    record in DNS so the clients can find the domain. Your ISP probably does not
    allow you to register your SRV recxords on their server nor do you want your
    private SRV record being registered on a public DNS server for the world to
    find.


    hth
    DDS
     
    Danny Sanders, Apr 16, 2009
    #6
  7. Zak

    Zak Guest

    Hello Danny

    Thank you for you assistance, it is much appricated.

    I have settup the forwards for the ISP DNS, and I have removed the ISP DNS
    from the DHCP.

    On another note, have have been using this configuration of IP Address since
    March 2006, and when I changed the server to the current one about a year
    ago, i used the same config.

    Once again, thank you for you help, should I experience any problems
    tomorrow I will post a reply.

    Zak
     
    Zak, Apr 16, 2009
    #7
  8. Zak

    Zak Guest

    Hello Danny

    Things were looking good this morning, however all the problems as back.

    Is there anything else that we cah do?

    Zak
     
    Zak, Apr 17, 2009
    #8
  9. Try this article:
    http://support.microsoft.com/kb/219289

    then on a client run ipconfig /flushdns and do some testing to see if that
    clears things up. I'm guessing you have a lot of DNS records in your AD zone
    that are not valid.'

    hth
    DDS
     
    Danny Sanders, Apr 17, 2009
    #9
  10. Zak

    Zak Guest

    Hi Danny

    I have the repair as per the KB and did the ipconfig /flushdns on all the
    pc, and everything has being fine since.

    However yesterday there was a power failure here by and I had to shutdown
    the server. The power only can back up last night and this morning when I
    restarted the server and the problems are back.

    NB: I shutdown the server before the UPS ran out of backup power.

    Is there anything else I can try.

    Zak
     
    Zak, May 5, 2009
    #10
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