command

How to Enable sendmail mailstats

Running mailstats on a debian etch server running sendmail was returning the following error: # /usr/sbin/mailstats MSP statistics… mailstats: /var/lib/sendmail/sm-client.st: No such file or directory MTA statistics… mailstats: /var/lib/sendmail/sendmail.st: No such file or directory The StatusFile was enabled in sendmail.cf (the default location as no definition was overwritten in sendmail.mc): # grep StatusFile /etc/mail/sendmail.cf O [...]

How to Change user password in XP without having to know the existing password

For some reason you forgot your password or another user forgot their password this will help you to reset the user password without having their old password. click on Start>Run>and type cmd From the command prompt window, type net users This will show you every account that is made onto the computer whether it is [...]

SubInACL – Display or modify Access Control Entries in 2003/XP/2000

SubInACL is a command-line tool that enables administrators to obtain security information about files, registry keys, and services, and transfer this information from user to user, from local or global group to group, and from domain to domain. For example, if a user has moved from one domain (DomainA) to another (DomainB), the administrator can [...]

How to setup and configure DNS from Command line in Windows Server 2008 & Core

With the coming of Windows Server 2008 Core, its time to go back to the good old days of command line. We can add the DNS Server role and add manage DNS Server including setting up Forward and Reverse Lookup zones from the command line. The following procedure should help you to setup and Configure [...]

List of the keyboard shortcuts that are available in Windows XP

General keyboard shortcuts loadTOCNode(2, ‘moreinformation’); • CTRL+C (Copy) • CTRL+X (Cut) • CTRL+V (Paste) • CTRL+Z (Undo) • DELETE (Delete) • SHIFT+DELETE (Delete the selected item permanently without placing the item in the Recycle Bin) • CTRL while dragging an item (Copy the selected item) • CTRL+SHIFT while dragging an item (Create a shortcut to [...]

How to Clear/Flush DNS Cache in Windows 2000/XP/2003/Vista

When you visit a website, Windows 2000/XP/2003/Vista tries to speed things up by placing the DNS information about that site, into a DNS cache on your PC. You see the DNS Windows 2000/XP/2003/Vista cache stores BOTH negative and positive entries. The positive entries are those that the DNS lookup was successful and you could connect [...]

How to clear ARP Cache in windows Vista/XP/2003/2000

The Address Resolution Protocol (ARP) is very crucial for TCP/IP network communication. If you begin to notice network connectivity problems such as particular webpages not loading or not being able to ping certain IP addresses then clearing your ARP cache is a good place to start.The TCP/IP ARP Command component provides the functionality to add, [...]

How to Add Static route in Windows XP/2000/Vista

A route describes the gateway IP address and network interface to use when sending packets to a network. The routing table on a host holds a list of destination network and the routes to those networks. This recipe describes adding entries to this routing table that will not persist following a reboot. These temporary routes [...]

How to uninstall Apache

OPTION 1: Run this command if you installed apache with RPM or throug the automatic option during the Fedora/Red Hat OS installation. Code: yum remove httpd OPTION 2: Run Code: /etc/init.d/httpd stop to get the package name. It should come back with something like this: Code: apachecfg-0.3.1-6 apache-1.2.5-1 You can then use this command to [...]

Windows Server 2008 Core – Post Setup Product Activation

During installation of Windows Server 2008 Core, it is possible to complete setup without specifying the product key. This means that you have up to 30 days from the installation date to test drive the product before it goes into reduced functionality mode, similar to that in Windows Vista. In both Windows Server 2008 and [...]

How to Set up a Subversion Server under Windows

A) Download Subversion You’ll need the latest version of.. the Windows binaries the “run Subversion as a windows service” wrapper the TortoiseSVN shell integration utility B) Install Subversion Unzip the Windows binaries to a folder of your choice. I chose c:\program files\subversion\ as my path. Now, add the subversion binaries to the path environment variable for [...]

Top 100 of the Best (Useful) OpenSource Applications

The following is a list of about 100 of the best OpenSource Applications, that actually help make Linux more usable for people. It is my hope that this list shows potential Linux users that there really is a large, effective, productive and usable range of free, OpenSource applications. For existing Linux users (like myself), I [...]

How to change the Postfix maximum email size

The configuration option is “message_size_limit” and by default is set to 10240000 bytes which is roughly 10MB. You can see what setting your postfix install is currently using by issuing the following command: postconf | grep message_size_limit Just doing “postconf” on its own will show all the options so using grep on “message_size_limit” filters the [...]

Checking to see if you’ve been Hacked

Anymore, computer security is just as important as Home security. You wouldn’t leave your front door open when you go out for a night on the town. So why would you leave your computer open for anyone to see? Well for most people, the signs of PC entry aren’t as obvious. In the following tutorial [...]

NTLDR is Missing – Windows

Cause: Computer is booting from a non-bootable source. Computer hard disk drive is not properly setup in BIOS. Corrupt NTLDR and/or NTDETECT.COM file. Misconfiguration with the boot.ini file. Attempting to upgrade from a Windows 95, 98, or ME computer that is using FAT32. New hard disk drive being added. Corrupt boot sector / master boot [...]