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The latest Microsoft Windows operating systems have a time synchronisation utility installed by default called ‘Windows Time’. The Windows time service allows a Microsoft network to provide time synchronisation of machines in a domain. This article introduces how to configure the Microsoft Windows 2000 and 2003 operating systems to operate as a SNTPNTP Time Server. The article discusses how to change Windows registry entries to configure the Time Service.
Before modifying any Windows registry settings, it is a good idea to save the registry. In the even of any difficulties, the registry can be restored to its former state.
Windows 2000 Time Service
Windows 2000 has an integrated network time synchronization service, installed by default, which can be configured to synchronize to a Time Server. In fact, by changing associated registry settings, the service can act as both a time client and a time server to synchronize other network Click Here To Read the rest of this entry
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\\ tags: SERVER 2008
NTLDR (NT Loader) is the most essential file that is needed by the Windows NT (Server 2003, XP, and Server 2000) systems to boot. It is run from the primary hard disk drive and contains the main Boot loader. The well-being of NTLDR is very significant for the boot process as if this file is missing, then your system would not be able to boot. The NTLDR file may get missing or corrupted due to various reasons, such as virus infections, power outages, damaged operating system, etc. In such cases, you should consider taking appropriate corrective measures to rectify the problem. However, if you are unable to resolve the issue then you should use a third-party Windows hard drive recovery software to do the needful.
Consider a scenario wherein you have a Windows Server 2003 system. When you start the system, it fails to do so. An error message is displayed, that is:
“NTLDR is missing
Press any key to restart”
Cause:
For the aforementioned error message, there are Click Here To Read the rest of this entry
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The process of troubleshooting your network if it has wireless components is somewhat more complex than wired infrastructure. In fact you must troubleshoot both wired and wireless infrastructure to determine the problem. The methodology of starting with cabling from the client and working through the OSI model to the application layer is effective. The wireless client traffic doesn’t see any cabling until there has been association with the access point. In essence there is a data link between wireless client and access point. With that established there is data link traffic between access point and wired network switch.
The wired client has a Cat 5 cable plugged into the desktop that terminates at a wired switch. All clients associating at a specific access point now share a single Cat 5 cable run from access point to switch. That makes troubleshooting easier since cabling is a source of a lot of network problems, however any problems with that cable affects all clients. It Click Here To Read the rest of this entry
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What is Linux?
Linux is an operating system created by Linus Torvalds during his days as a student at the University of Helsinki. Linux was created and meant to be used as an option or substitute to the other operating systems being used by computer users, like MS-DOS, Windows, Mac OSX, etc. Linux is not a program or a set of programs like a word processor of an office suite.
A Brief History
While studying at the University of Helsinki, Linus used a version of the UNIX operating system called ‘Minix’. Several requests for modifications and improvements for the operating system were being sent by Linus and other users to Andrew Tanenbaum, Minix’s creator, but he felt that they weren’t necessary. Therefore, Linus decided to create his own operating system; one that would take into account the users’ comments and suggestions for improvements.
A “kernel” is the focal point of any operating system. Without going into great detail, the kernel Click Here To Read the rest of this entry
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Dr Watson Errors are very uncommon that is why there is a very big possibility that you will only get to know about it when you actually encounter it. This usually happens when you attempt to open certain directives and instructions that are not normally accessible in certain circumstances which affect mostly the Central Processing Unit of your computer. This is the reason why this problem is common to a lot of operating systems and not just to Windows. Although this problem is still relatively unknown to some, it may happen to you frequently especially if you are the type of person who likes to open and browse through restricted or illegal directives that are usually not allowed to be opened other than by the administrators of the system, then you may be experiencing these problems more frequently.
Although Dr Watson errors have something to do with the Central processing Unit, there is still a way for you to repair them without you ever having to open your hardware Click Here To Read the rest of this entry
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Here are some DBA interview questions.
What are the dictionary tables used to monitor a database spaces? :- DBA_FREE_SPACE DBA_SEGMENTS DBA_DATA_FILES.
What are the roles and user accounts created automatically with the database? :- DBA :- role Contains all database system privileges. SYS user account :- The DBA role will be assigned to this account. All of the base tables and views for the database’s dictionary are store in this schema and are manipulated only by ORACLE. SYSTEM user account :- It has all the system privileges for the database and additional tables and views that display administrative information and internal tables and views used by oracle tools are created using this username.
What are the minimum parameters that should exist in the parameter file (init.ora)? :- DB NAME :- Must set to a text string of no more than 8 characters and it will be stored inside the datafiles, redo log files and Click Here To Read the rest of this entry
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