Category Archives: Operating Systems

Linux : Install Webmin from YUM repository

Webmin and Usermin can be installed and updated directly through YUM. To achieve this, we need to setup manually the repository. First, create the .repo file for YUM : vi /etc/yum.repos.d/webmin.repo Copy, paste and save the following : [Webmin] name=Webmin Distribution Neutral#baseurl=http://download.webmin.com/download/yum mirrorlist=http://download.webmin.com/download/yum/mirrorlist enabled=1 Save the PGP key : wget http://www.webmin.com/jcameron-key.asc Import the key :… Read More »

Windows : Microsoft.ACE.OLEDB provider is not registered on the local machine

Trying to import Excel datasheet into MSSQL database using .NET application and get this error? The ‘Microsoft.ACE.OLEDB.12.0’ provider is not registered on the local machine This indicate you are required to install the two following component on the server : Access Database Engine as well as Excel. http://www.microsoft.com/download/en/details.aspx?id=13255

Windows : Asp.NET test page

Just like php, you can create a test page in order to verify if .NET is installed and working properly. The following will also display the running version. Simply create plain text file using Notepad or your favorite text editor : test.aspx And insert this code : <%@ Page Language=”VB” %> <script runat=”server”> Protected Sub… Read More »

Linux : Increase maximum open file descriptors

On most heavy usage servers, you probably need to override the maximum open file descriptors in order to handle the load! Do not play with this setting blindly, make sure you know what you’re doing! In most case, you will be warned in log wit message like this : Too many open files You may… Read More »

Windows : How To clear Offline Files server list

You may get into trouble if you didn’t remove folder synchronization on network server before deleting a user account or unlink a computer from domain… File synchronization still effective even if the user is no longer on the computer or Active Directory. The only way to get rid of old entries, is to do it… Read More »

Linux : mptbase ioc0 WARNING IOC is in FAULT state

Inside system logs (/var/log/messages), you may see some message like this on a system running a RAID controller (this one is from a PERC 5/i on a Dell PowerEdge server) : mptbase: ioc0: WARNING – IOC is in FAULT state (1600h)!!! mptbase: ioc0: WARNING – Issuing HardReset from mpt_fault_reset_work!! mptbase: ioc0: Initiating recovery mptbase: ioc0:… Read More »

Linux : Hardware Lister

Need to show full hardware contained inside a Linux machine (board, cpu, memory, pci slots, etc.) such as you do on Windows with AIDA, Sandra, etc? Hardware Lister (lshw) is the answer. http://ezix.org/project/wiki/HardwareLiSter [official site : external link] You can shot the full output using the command lshw Or redirect the listing in a plain… Read More »

Active Directory : Change the default display name format for user and contact objects

Here is how to change the default display name format for user and contact objects in Active Directory. By default, it display “Last name and First name”. We want to revert this to “First name, Last name”. Before doing this step, make sure your user is a member of either “Enterprise Admins” or “Domain Admins”… Read More »

Windows : Setting LAN Authentication Level on 7 Home Premium

Windows 7 Home Premium doesn’t have the “Local Security Policy” console (aka : secpol.mmc). In order to access SMB share running the old protocol version, you need to enable the Authentication LAN Manager directly inside the registry. Open the registry editor (Start > Run) : regedit Browse to : HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Lsa Create a new DWORD value… Read More »

Linux : Partition and format external hard drive as ext3 filesystem

This tutorial is about partitioning a USB external hard drive as good for internal drive. First, list devices on your system using one of the following commands : dmesg (USB drive should appear as SCSI drive) fdisk -l | grep ‘^Disk’ Now, assuming your new drive is “sdb”, use the following command to invoke the… Read More »