Windows and Linux Real time scenarios and answers that Works

In Rhel 5 virtualization can be done in two ways Para Virtualization Full Virtualization Para virtualization : Min 512 MB Ram and CPU must support PAE Flag Full Virtualization :  Min 512 MB Ram and CPU which supports VMX (Intel Processors and vm AMD) We must install xen Kernel, which supports virtualization to be supported in the server and we should install virt-manager, Just like Vmware in windows #yum install kernel-xen-2.6.***** #yum install virt-manager Whenever we install the xen kernel the following services will start libvirtd xend Now to open virt manager in the server type the following command : #virt-manager click on New --> forward -->VM1 (Guest os name)  --> forward --> ftp://server1.example.com/pub (path that we have copied the RHEL5 DVD ) --> Normal Disk Partition (Seperate partition) ...and follow the on screen instructions Note : to check the cpu info #cat /proc/cpuinfo The entire above process is para - virtualization

I have a problem with my laptop. I cannot seem to connect to my wireless router at home. I see the strong signal and put in the correct passkey, but all I see is "Acquiring network address." I had another laptop using a PCMCIA Wireless card and could not connect. So at first I assummed it was the router problem, then I just bought a brand new router. Then it still doesnt work and gives me the same message. My brother laptop however works. The thing is that my laptop is newer than his. I have no idea what the problem is. It just keeps trying to connect forever and forever, has that message "Acquiring network address." I read on some posts that it could be a DHCP problem? I have no idea how to fix that. Can someone help? Thanks.  Sollution :   Hi there This can often be an issue with security encryption. There may be a wrong key entered or the client adaptor does not support the encryption used. To try and solve this first change the SSID o

Desktops and Laptops purchased from manufactures like DELL, IBM, etc comes with a serial number(or service tag) and a model name. If you ever loose this information, then you can use MS DOS commands to retrieve the information To retrieve serial number of the computer run the following command wmic bios get serialnumber To retrieve model name of the computer run the following command wmic csproduct get name

Can anyone give the the correct syntax (if it exists) to use the DSQUERY command line tool to query the members of a specific group in AD? I have tried many combonations and I cant seem to figure it out. I tried: dsquery user OU=xxx, DC=yyy,DC=ZZZ but I don't know what should go after that. I also tried the dsquery group method with no luck. Does anyone know the correct way?? Thanks! Sol :   C:\>dsget group "CN=GroupName,DC=domain-name,DC=com" -members If you need to specify a server and/ or credentials, append the following on the end: -s dc01 -u userName -p *

Hi gurus!   I have DataStage v 8.1 on a Windows 2003 server.   After two-three weeks I cannot login to "Administrator Client" nor "Designer Client". I get this error message:   Failed to authenticate the current user against the selected Domain   Could not connect to server [XAXAMP34] on port [9080].   javax.security.auth.login.LoginException: Could not connect to server [XAXAMP34] on port [9080].   at com.ascential.acs.security.auth.client.Authenticat ionService.getLoginException(AuthenticationService.java:991)   etc.   The Client is on the server, so it has nothing to do with the firewall. I can see that the "IBM WebSphere Aplication Server V6" is not running. When I start it it goes down after seconds.   I have reinstalled and everything is ok for 2-3 weeks and then I am restricted from login again.   Can anyone help me?   Best Regards,   Haldur Johansen Sol 1 : It sounds like one of the UID PWD are expiring, maybe xmeta. Try the password

What is Nessus? Nessus is a remote security scanning tool, which scans a computer and raises an alert if it discovers any vulnerabilities that malicious hackers could use to gain access to any computer you have connected to a network.  It does this by running over 1200 checks on a given computer, testing to see if any of these attacks could be used to break into the computer or otherwise harm it. To know more about the Nessus visit the following website : http://www.cs.cmu.edu/~dwendlan/personal/nessus.html Instructions to install Nessus in Ubuntu 10.10 http://hackertarget.com/2009/06/guide-to-nessus-4-on-ubuntu-904/

HOWTO: Use Group Policy to disable USB Sol:-   Just copy and paste the below code into a notepad and save the notepad as .adm file. Eg: usbrestrict.adm CLASS MACHINE CATEGORY !!category  CATEGORY !!categoryname   POLICY !!policynameusb    KEYNAME "SYSTEM\CurrentControlSet\Services\USBSTOR"    EXPLAIN !!explaintextusb      PART !!labeltextusb DROPDOWNLIST REQUIRED          VALUENAME "Start"        ITEMLIST         NAME !!Disabled VALUE NUMERIC 3 DEFAULT         NAME !!Enabled VALUE NUMERIC 4        END ITEMLIST      END PART    END POLICY   POLICY !!policynamecd    KEYNAME "SYSTEM\CurrentControlSet\Services\Cdrom"    EXPLAIN !!explaintextcd      PART !!labeltextcd DROPDOWNLIST REQUIRED          VALUENAME "Start"        ITEMLIST         NAME !!Disabled VALUE NUMERIC 1 DEFAULT         NAME !!Enabled VALUE NUMERIC 4        END ITEMLIST      END PART    END POLICY   POLICY !!policynameflpy    KEYNAME "SYSTEM

Cause :  This issue may occur if the IRPStackSize registry entry on the server is set too low. Resolution :   To resolve this issue, increase the value of the IRPStackSize registry entry. To do this, follow these steps: Click  Start , click  Run , type  regedit , and then click  OK . Locate and then click the following registry subkey: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\LanmanServer\Parameters If the IRPStackSize entry is not present in this subkey, follow these steps: Click  Edit , point to  New , and then click  DWORD Value . Type  IRPStackSize , and then press ENTER.  Note  Type  IRPStackSize  exactly as it appears. The value name is case sensitive. Click  IRPStackSize , click  Edit , and then click  Modify . In the  Data Value  box, type a larger value Eg: 30, and then click  OK . You are probably going to need a reboot for this to take effect Note  Values may range from 0x1 to 0xC. These values are equivalent to 1 to 12 in decimal notation. If the pr

Setting Up Your POP or IMAP Email Address in Microsoft Outlook This tutorial shows you how to set up Microsoft Outlook 2003® to work with your e-mail account. This tutorial focuses on setting up Microsoft Outlook 2003, but these settings are similar in other versions of Microsoft Outlook. You can set up previous versions of Microsoft Outlook by using the settings in this tutorial. To Set Up Your E-mail Account in Microsoft Outlook In Microsoft Outlook, from the  E-mail Accounts  menu, select  Tools . On the E-mail Accounts wizard window, select  Add a new e-mail account,  and then click  Next . For your server type, select  POP3  or  IMAP , and then click Next. On the Internet E-mail Settings (POP3/IMAP) window, enter your information as follows: Your Name Your first and last name. E-mail Address Your email address. User Name Your email address, again. Password Your email account password. Incoming mail server (POP3) POP,  Pop.secureserver.net  or IMAP,  imap.secureser

Hi All, Here I am going to explain you about "What and How to check whether your scanner is working or not" ?(if you are unable to scan from your computer ) Sollution :  If you are unable to scan from your computer.... 1) Check whether the power cable of the scanner is connected and it is turned on 2) Check the cable between the scanner and the computer is connected... 3) Check whether the drivers of your scanner has installed in the computer or not... if the above  steps are correct then follow the below steps : First we need to check the communication between the computer and the scanner.... We can check the communication by using the MS Paint application... 1. Open MS Paint 2. Click on File ---> From Scanner or Camera 3. There you can select the scanner from the list of available icons 4. Click on Scan and select the print settings 5. If you are able to scan from MS Paint....then your scanner is working fine..if it is not check for manufacturers warr

Hi All, Here I am going to give the clear explanation of "How to share a printer in Network which is connected to a single computer" ? Setting up the host computer running Windows 98SE, Windows Me, or Windows 2000 At the computer that is directly connected to the Printer (Eg HP Laserjet 1160), perform the following steps: Click Start , click Settings , and then click Printers . In the printer list, right-click the icon for your (Eg HP Laserjet 1160),series printer, and then click Sharing . If Sharing does not appear on the right-click menu, you must first enable printer sharing for Windows 98SE or Windows Me. Follow these steps: Click Start , click Settings , and then click Control Panel . Double-click the Network icon. On the General tab, click File and Print Sharing . Click the I want to be able to allow others to print to my printers check box , and then click OK . Click OK again, and then close the Control Panel . If you are prompted to restart

The following are the main features of windows 2008 server while we compare it with windows 2003 server... 1) 2008 is combination of vista and windows 2003r2. Some new services are introduced in it 1. RODC one new domain controller introduced in it    [ Read-only Domain controllers.] 2. WDS (windows deployment services) instead of RIS in 2003 server 3. shadow copy for each and every folders 4.boot sequence is changed 5.installation is 32 bit where as 2003 it is 16 as well as 32 bit, that’s why installation of 2008 is faster 6.services are known as role in it 7. Group policy editor is a separate option in ads 2)  The main difference between 2003 and 2008 is Virtualization, management. 2008 has more inbuilt components and updated third party drivers Microsoft introduces new feature with 2k8 that is Hyper-V  Windows Server 2008 introduces Hyper-V (V for Virtualization) but only on 64bit versions. More and more companies are seeing this as a way of reducing hardware costs by ru

Hi All, Here I want to explain the step by step process to create a yum repository in RHEL 5 Server.... mount /dev/hdb /mnt (/dev/hdb is my dvd drive) cd /mnt/RHEL5.../Server rpm -ivh createrepo* mkdir /var/redhat.repo Now we are copying the RHEL 5 DVD to /var/server.repo...the reason why we named the folder with extenstion .repo is it will works perfectly...while yum tries to check the packages. cp -rv /mnt/Rhel5../* /var/redhat.repo Now we need to edit the configuration file of yum vim /etc/yum.repos.d/rheldebuginfo.repo add the following two lines in the file.. baseurl=file:///var/redhat.repo enabled=1 (Note: before editing any configuration files..it is recommended to take the backup of that particular configuration file...) createrepo /var/redhat.repo yum clean all yum list That is it now we have created the yum repository...it is just a simple process...

If  your Windows XP computer have problems with the HOSTS file then follow the below listed suggestions Suggestions: 1- Make it is named "hosts." with no extension. As another commenter noted, sometimes editors will try and impose their default extensions. 2- Make sure you are using the file in the correct location. On my XP box it is C:\WINDOWS\system32\drivers\etc 3- Make sure that the entries you are trying to make are properly formatted. In particular, do  not  prefix the line with a #; that indicates a comment/remark. Are you sure about the re-install? I am all for it, I do it once or twice a year to clean the fluff, but what makes you think it will solve the issue with (basically) name resolution? Good luck Suggestion 2 :  If you entered the default IP for address, 127.0.0.1, you always get a reply for ping, because you are pinging yourself. Instead do a nslookup and see if proper IP is being returned. The idea of hosts is not to block traffic, but to redirect addr

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