Showing posts with label Educational. Show all posts
Showing posts with label Educational. Show all posts

Sunday, November 25, 2012

Forward mail from rediff mail to other email address - Rediff Bug

If you want to forward all your emails from your Rediffmail account to any other email account, simply follow the steps below:

Go to the classic version of your Rediffmail account. This is important else you will get an error
You have not specified any email address to which you would like your emails forwarded

Thursday, July 12, 2012

Make your own VGA cord of CAT5 cable!


As most of you know, getting a descent length of VGA monitor cable is a costly thing. With this instructable I'll show you how to make a 15m long VGA cable, out of plain ol' CAT5 network cable.

Wednesday, July 11, 2012

How to Re-brand Your Zimbra

Zimbra Collaboration Suite is an enterprise-class open source email, calendar and collaboration server. With the most innovative web application available today, Zimbra boosts the productivity of users on any desktop and dramatically reduces TCO compared to legacy platform vendors.
Other key advantages include advanced compatibility with existing desktop email clients, over-the-air sync to smart phones (iPhone, Android, BlackBerry) as well as better server scalability and more efficient administration.
This is an article that  that I have written to highlight some of the areas which one can customize to give the server a better look and feel. Note that you should apply this in compliance with the Zimbra license depending on the version your are using.


a.) To change the favicon:
The favicon is usually located in /opt/zimbra/jetty/webapps/zimbra/img/logo. You will need to overwrite this with your own icon! Simple!

Tuesday, July 10, 2012

How to configure Windows 7 to connect it to an iSCSI SAN.

First off, if you are looking for information on how to create your own FREE iSCSI SAN or to connect other operating systems to an iSCSI SAN, checkout the following articles:
Note:
This article assumes that you have already have an iSCSI SAN up and running. Besides that, I assume that you (or your SAN Admin) have already created an iSCSI share on that SAN and that the iSCSI volume has not yet been formatted with any OS /Operating system.

So, you have Windows 7 up and running but what do you do if you want to connect it to either the free SAN IiSCSI or OpenFiler from the instructions above. You could even just want to connect it to an existing iSCSI SAN and your storage admin has already created out a LUN for you.
Now that we have some background, let us configure Windows 7 to connect to an iSCSI SAN…

Configuring iSCSI in Windows 7

To get started, you need to run the iSCSI Initiator that is installed by default in Windows 7. You can access it in a couple of different ways.
One option is to access it through the Windows 7 Control Panel. Once inside control panel, on the address bar navigation, click on All Control Panel Items, then Administrative Tools, as seen in Figure 1.

Thursday, July 5, 2012

List of Windows and DOS Command Prompt Environment Variables

Windows and DOS (Command Prompt) have several environment variables which provides a set of dynamic values that points to important system locations or settings. Environment variables provided a way for running programs and batch command script to access the true discrete values, system paths or user management settings for configuration and processing purposes, avoiding the use of hard-coded values which may fail on some systems due to great variety of system configuration.

Tip: Batch file (.bat or .cmd) also uses environment variables to store temporary values for reference later in the script, and also to communicate data and preferences to child processes.

The table lists the common built-in environment variables in Windows operating system, together with their brief explanations and default values. All environment variables is not case-sensitive.

Thursday, April 19, 2012

Transfer your PuTTY settings between computers

PuTTY is tops on the short list of applications I install first on any Windows machine. Over the years I've used PuTTY, I've installed it on a huge number of computers but I've always had one complaint; There isn't a configuration file I can backup or move to a new machine.

Getting all the little comfort settings correct for each SSH connection can be a pain. The third time you set emulation, keys, encryption type, etc. for each machine you regularly access, you lose patience. The fifth time you find yourself re-entering settings you might do what I did, find a better way.


Moving PuTTy settings between computers is an easy task once you know what's involved. We'll find the registry keys where PuTTy stores its configuration information and export them to a file. We'll then use that file we've made to import our configuration on the target machine.

Tuesday, April 10, 2012

Useful Shortcuts For Windows

RUN command shortcuts
I know there are a lot of people who love using the run prompt or the command prompt rather than using the mmc control, so here are some quick tips that you can use. Enjoy!

Monday, March 19, 2012

Symantec Backup Exec Migrate Data and catalogs to a fresh server or upgrade version of server

This week our backup server had to be replaced. We currently run Backup Exec 11d on Server 2003.  We are in the process of upgrading our servers to server 2008. At this point since there we are two versions behind would it be recommended to just wipe the server and start from scratch with 2008 and BE 2010 or upgrade BE 11d to 2010 and then upgrade to server 2008.

So there will be two options

In place upgrade:
1  : Upgrade BE11d to 12.5 and then to BE2010
2  : Upgrade W2003 to W2008

New Server upgrade: (With Same Name)
1  : On W2003 Server upgrade BE11d to 12.5 and to 2010
2  : On W2008 install BE2010 and migrate BE Databases from W2003 to W2008.

Friday, March 9, 2012

7-Zipping multiple folders to separate/individual zip/archive files

The problem was I had several folders I wanted to zip into individual 7z archives.  7-zip lacks a ‘Add to “*.7z”‘ explorer context for multiple selected files or folders (even though it does include a ‘Extract to “*\”‘).  Nor does this option appear within the application itself or via the command-line.  I seem to recall this feature being available in the Explorer contexts for some ZIP program I once used (I think it was TUGzip), but I wanted to choose quite aggressive compression settings for the archives and I didn’t think this would be achievable except via the command-line.
So using a bit of Google skills I discovered the ‘for… in… do’ batch command.  Which is quite powerful and I’m sure will come in handy again now that I know about it. Coupled with the 7-zip manual I arrived at a batch file with this line in it:

For 7z archive files

for /d %%X in (*) do "c:\Program Files\7-Zip\7z.exe" a "%%X.7z" "%%X\" -mx=9 -ms=on -md=26 -mfb=256

Friday, February 24, 2012

Configuring Cisco Router as a DHCP server

If you want to configure Dynamic Host Configuration Protocol (DHCP) on PC clients, you currently have multiple options to choose for your DHCP server. One of the more common ways to accomplish this is by using a Windows or Linux server. However, most home networks get DHCP from their DSL or cable router.
Many administrators forget or don't even realize that DHCP is also available on Cisco IOS routers and switches. Keep in mind that DHCP is only available on newer IOS-based switches.

Wednesday, February 22, 2012

Create Bootable USB Pen Drive for Windows 7

Installing Windows from a USB flash drive has several advantages : First of all, the overall speed of the installation process will increase significantly, carrying a USB stick is much more convenient than a DVD, and finally it becomes possible to install the OS even on those systems that do not have a DVD drive, such as a netbook.

 

In this post, I will show you how to load the Windows installation on to your USB flash drive and make it bootable just like the DVD.

Wednesday, January 11, 2012

Programming with MSMQ: and it's installation issues.

MSMQ has already been there for while. Actually it has been here at least 5-6 years (that is only the time I am familiar with it).
The Idea of it is pretty simple:
  1. You have an application with some logic.
  2. Part of this logic is to perform asynchronous calls to some other application logic.
  3. You do not wish that it will affect your performance.
  4. The order of handling those calls has to preserve - the FIFO method.

Thursday, January 5, 2012

Disassemble a Gateway 610 Media PC (Elonex Exentia)

I was looking to 'fix' my Gateway 610 it stopped booting, or mearly started to freeze up 5 minutes or 40 minutes after boot, mid-video playback. I assumed a background task, or maybe a virus. Soon the reboots messed the boot drive, and sometimes it wouldn't recognise the drive. 

http://www.laptops-we-r.com/610%20MEDIA%20CENTER%20OPENING%20REPAIR.htm

Monday, December 19, 2011

A Windows administrator's guide to Diskpart commands


Introduction
Systems administrators frequently build, manipulate and extend disk partitions in Windows in order to keep from running out of space on their servers. One tool they use is Microsoft's Diskpart utility, which allows Windows administrators to configure storage from a script, a remote session or other command prompt.
This guide reviews the many Diskpart commands and explains how administrators can use Diskpart to manipulate, extend and delete disk partitions.
The Diskpart.exe command-line utility can extend the data volumes and existing partitions in Windows 2000, Windows XP and Windows Server 2003 by using the unallocated space displayed in the Disk Management snap-in.

Friday, December 9, 2011

How do I stop/start a scheduled task on a remote computer ?

Here's what I found.

To Stop
schtasks /end /s <machine name> /tn <task name>
To Start:
schtasks /run /s <machine name> /tn <task name>

Sunday, November 20, 2011

How can I send an e-mail message from a script?

Send Mail from ScriptThere are a few simple ways to send e-mail messages from the command prompt or from within a script.

Method #1: MAILSEND
 
If you want to send a single e-mail message or hundreds of them and do it all from a single batch file or command you should use the MAILSEND program written by Muhammad A Muquit.

MAILSEND is a simple program to send mail via SMTP for MS Windows NT/2000/XP. To use it, you must know the address or IP address of the SMTP server you wish to use.

MAILSEND is a console application; you can run it from command shell or by clicking on the app from file explorer. You can use it in many ways. I'm using 192.168.0.200 as the IP address of the SMTP server as an example, change this to your valid one. Some example are shown below:


Wednesday, November 2, 2011

Configure OpenFiler iSCSI targets

Last weekend I downloaded the OpenFiler iso to configure the Central Storage solution in my homelab. After installing the software in a new VM I figured out how to configure iSCSI targets and present them to my servers…
I’m running servers which provide iSCSI functionality by default to connect through to an iSCSI target.
After I installed OpenFiler in a VM I connected to https://ip:446, you can manage your service account with the created root account and you can manage the OpenFiler with the following credentials Username: Openfiler Password: password

How to Create and use the iSCSI target service on the NAS

Contents
  • Connect to the iSCSI targets by Microsoft iSCSI initiator on Windows
  • Connect to the iSCSI targets by Xtend SAN iSCSI initiator on Mac OS
  • Connect to the iSCSI targets by Open-iSCSI Initiator on Ubuntu Linux
What is iSCSI and how can one benefits from it?
Microsoft Active DirectoryiSCSI, (Internet Small Computer System Interface), an Internet Protocol (IP)-based storage networking standard for linking data storage facilities. By carrying SCSI commands over IP networks, iSCSI is used to facilitate data transfers over intranets and to manage storage over long distances. iSCSI can be used to transmit data over local area networks (LANs), wide area networks (WANs), or the Internet and can enable location-independent data storage and retrieval. (quoted from Wikipedia)

Monday, October 31, 2011

How do I setup a simple port forward on Windows Server 2003 between multiple Interface

Windows server 2003 will act as the router in this case or a bridge between both Interfaces and his network.

Administrative Tools >
Routing and Remote Access >
ServerName >
IP Routing > NAT/Basic Firewall >
Right-Click on your NIC-1 LAN >
Properties >
Services & Ports Tab >
Add... >

Monday, October 17, 2011

Accessing the BIOS When You Forgot the Password

Bios password are used to secure your desktop and laptop computer by preventing other user from accessing to your computer making it unbootable intel requiring password or from changing the bios setting whenever you are away.

HERE ARE THE TRICKS AND TIPS ON HOW TO ACCESS THE BIOS/CMOS SETTING WHENEVER YOU FORGOT THE PASSWORD