Appending Date in a PowerShell Script

The following example shows how we can append date on a file or object in a power shell. Following example uses a Aws Command for creating a Aws Image with Date Appended.

====
$CurrentDate = (Get-Date).tostring("dd-MM-yyyy-hh")
aws ec2 create-image --instance-id i-3442a --name ("test_" + $CurrentDate) --description ("test_" + $CurrentDate) --no-reboot
====

Create SFTP server in Windows Server.

Normally we need to install ftp role and get the site configured to use the FTP/SFTP in the windows server. Now we can Create SFTP server in windows server by enabling freeftpd from following URL

http://www.freesshd.com/?ctt=download

Configure MySql and ODBC Connector In Windows 2012 Server

Installing MySql and its ODBC Connector In the Windows 2012 Server

Download The Microsoft Visual C++ 2010 Redistributable
http://www.microsoft.com/en-gb/download/details.aspx?id=14632

Download and install the ODBC Connector
http://cdn.mysql.com/Downloads/Connector-ODBC/5.3/mysql-connector-odbc-5.3.4-winx64.msi

Downoading the MySQL
http://cdn.mysql.com/Downloads/MySQL-5.6/mysql-5.6.26-winx64.zip

c:\mysql>cd bin
c:\mysql\bin>mysqld --install
Service successfully installed.

Go to Services and start the Mysql Services.

c:\mysql\bin>mysql -u root -p
>>No password is needed for first time

Set the root Password
=====================
mysql>
mysql> UPDATE mysql.user SET password=PASSWORD('redhat') WHERE user='root';
Query OK, 3 rows affected (0.00 sec)
Rows matched: 3  Changed: 3  Warnings: 0

mysql> FLUSH PRIVILEGES;
Query OK, 0 rows affected (0.00 sec)

mysql> select user,host from mysql.user;
+------+-----------+
| user | host      |
+------+-----------+
| root | 127.0.0.1 |
| root | ::1       |
|      | localhost |
| root | localhost |
+------+-----------+
4 rows in set (0.00 sec)


mysql> delete from mysql.user where user='';
Query OK, 1 row affected (0.00 sec)

mysql> select user,host from mysql.user;
+------+-----------+
| user | host      |
+------+-----------+
| root | 127.0.0.1 |
| root | ::1       |
| root | localhost |
+------+-----------+
3 rows in set (0.00 sec)


mysql> create database fileserver;
Query OK, 1 row affected (0.01 sec)

mysql>GRANT ALL PRIVILEGES ON fileserver.* TO 'fileserver'@'localhost' IDENTIFIED BY 'fileserver';
Query OK, 0 rows affected (0.02 sec)

mysql> flush privileges;
Query OK, 0 rows affected (0.02 sec)

mysql>

Enable Administrator Account in Windows

Open the command prompt with elevated privileges. To do this click the Start Orb then All Programs, click on Accessories, then right-click on Command Prompt and then select Run as administrator.
In the Command Prompt, type

net user administrator /active:yes

 

Download files through Command Prompt in Windows

HTTP
PowerShell

$source = "http://yoursite.com/file.xml"
$destination = "c:\application\data\newdata.xml"
Invoke-WebRequest $source -OutFile $destination

The Invoke-WebRequest cmdlet
Invoke-WebRequest is a cmdlet that lets you upload or download data from a remote server. This cmdlet allows for user agents, proxies, and credentials.

FTP
PowerShell

$source = "ftp://yoursite.com/file.xml"
$destination = "c:\application\data\newdata.xml"

Invoke-WebRequest $source -OutFile $destination -Credential ftpUser

The code example above is almost identical to the HTTP sample, with the main difference being that the $source variable has “ftp” at the beginning instead of “http”. You may also notice that we have used the -Credential parameter since FTP connections generally require a username and password.

Windows 8 and fedora 20 Dual boot in HP

Recently I have moved to fedora 20 and window 8 which showed that HP laptops have a special bios which only allows windows EFI to be loaded as default so even after installing both the OS and making the EFI partition of fedora default the system boots from Windows EFI directory. To get the grub to boot first I did the following steps.

My disk partition are as below. Device           Start          End   Size Type
/dev/sda1         2048       616447   300M Windows recovery environment
/dev/sda2       616448       821247   100M EFI System
/dev/sda3       821248      1083391   128M Microsoft reserved
/dev/sda4      1083392    122882047  58.1G Microsoft basic data
/dev/sda5    122882048    123291647   200M EFI System
/dev/sda6    123291648    124315647   500M Microsoft basic data
/dev/sda7    124315648    548470783 202.3G Linux LVM
/dev/sda8    548470784    976771071 204.2G Microsoft basic data

Here I have two EFI partition /dev/sda2 (Windows) and /dev/sda5 (Fedora). As the setting is embedded in HP bios we needed a work around.

So I mounted the partititons first .

mount /dev/sda5 fedora/
mount /dev/sda2 win/

Now we copy the Fedora EFI content to Windows partions as follows

cp -rp fedora/EFI/fedora win/EFI/

In the windows partion you can find a default HP EFI content . Just rename it to some thing else.

Now rename the windows boot loader

mv win/EFI/Microsoft/Boot/bootmgfw.efi  win/EFI/Microsoft/Boot/bootmgfwB.efi

Now copy the grubloader into the place of windows bootloader

cp win/EFI/fedora/grubx64.efi win/EFI/Microsoft/Boot/bootmgfw.efi

Now recreate the grub.cfg and place it in win/EFI/fedora

grub2-mkconfig -o win/EFI/fedora/grub.cfg

It should be done by now reboot the machine and check it .

 

 

Windows Commands

ASSOC

assoccmd2 15 CMD Commands Every Windows User Should Know
Most files in Windows are associated with a specific program that is assigned to open the file by default. At times, remembering these associations can become confusing. You can remind yourself by entering the command “assoc” to display a full list of file extensions and the programs they’re connected with.
You can also extend the command to change file associations. For example, “assoc .txt=” will change the file association for text files to whatever program you enter after the equal sign. The ASSOC command itself will reveal both the extension names and program names, which will help you properly use this command. You can probably do this more easily in the GUI, but the command line interface is a perfectly functional alternative.
Cipher

ciphercmd 15 CMD Commands Every Windows User Should Know
Deleting files on a mechanical hard drive doesn’t really delete them at all. Instead, it marks the files as no longer accessible and the space they took up as free. The files remain recoverable until they’re overwritten with new data, which can take some time.
The cipher command, however, can be used to wipe a directory by writing random data to it. To wipe your C drive, for example, you’d use the command “cipher /w:c”, which will wipe free space on the drive. The command does not overwrite undeleted data, so you will not wipe out files you need by running this command.
There’s also a host of other cipher commands, however, they are generally redundant with Bitlocker enabled versions of Windows.
Driverquery

driverquerycmd 15 CMD Commands Every Windows User Should Know
Drivers remain among the most important software installed on a PC. Improperly configured or missing drivers can cause all sorts of trouble, so its good to have access to a list of what’s on your PC. That’s exactly what the “driverquery” command does. You can extend it to “driverquery -v” to obtain more information including the directory in which the driver is installed.
File Compare

This command can be used to identify differences in text between two files, and is particularly useful for writers and programmers trying to find small changes between two versions of a file. Simply type “fc” and then the directory path and file name of the two files you want to compare.
fccmd 15 CMD Commands Every Windows User Should Know
You can also extend the command in several ways. Typing “/b” compares only binary output, “/c” disregards the case of text in the comparison, and “/l” only compares ASCII text.
So, for example, you could use the following:
fc /l "C:\Program Files (x86)\example1.doc" "C:\Program Files (x86)\example2.doc"
to compare ASCII text in two word documents.
Ipconfig

This command relays the IP address that your computer is currently using. However, if you’re behind a router (like most computers today), you’ll instead receive the local network address of the router.
Still, ipconfig is useful because of its extensions. “ipconfig /release” followed by “ipconfig /renew” can force your Windows PC into asking for a new IP address, which is useful if your computer claims one isn’t available. You can also use “ipconfig /flushdns” to refresh your DNS address. These commands are great if the Windows network troubleshooter chokes, which does happen on occasion.
Netstat

Entering the command “netstat -an” will provide you with a list of currently open ports and related IP addresses. You’ll also be told what state the port is in – listening, established or closed. This is a great command if you’re trying to troubleshoot the devices your PC is connected to or you’re afraid you’re infected with a Trojan and are trying to locate a malicious connection.'

Ping

pingcmd 15 CMD Commands Every Windows User Should Know
Sometimes, you need to know whether or not packets are making it to a specific networked device. That’s where ping comes in handy. Typing “ping” followed by an IP address or web domain will send a series of test packets to the specified address. If they arrive and are returned, you know the device is capable of communicating with your PC; if it fails, you know that there’s something blocking communication between the device and your computer. This can help you decide if an issue is caused by improper configuration or a failure of network hardware.
Pathping

This is a more advanced version of ping that’s useful if there are multiple routers between your PC and the device you’re testing. Like ping, you use this command by typing “pathping” followed by the IP address, but unlike ping, pathping also relays some information about the route the test packets take.
Tracert

tracertcmd 15 CMD Commands Every Windows User Should Know
The “tracert” command is similar to pathping. Once again, type “tracert” followed by the IP address or domain you’d like to trace. You’ll receive information about each step in the route between your PC and the target. Unlike pathping, however, tracert also tracks how much time (in milliseconds) each hop between servers or devices takes.
Powercfg

Powercfg is a very powerful command for managing and tracking how your computer uses energy. You can use the command “powercfg /hibernate on” and “powercfg /hibernate off” to manage hibernation, and you can also use the command “powercfg /a” to view the power-saving states currently available on your PC.
Another useful command is “powercfg /devicequery s1_supported” which displays a list of devices on your computer that support connected standby. When enabled, these devices can be used to bring your computer out of standby – even remotely. You can enable this by selecting the device in Device Manager, opening its properties, going to the Power Management tab and then checking the “Allow this device to wake the computer” box.
“Powercfg /lastwake” will show you what device last woke your PC from a sleep state. You can use this command to troubleshoot your PC if it seems to wake from sleep at random.
powercfgcmd 15 CMD Commands Every Windows User Should Know
The “powercfg /energy” command can be used to build a detailed power consumption report for your PC, which is output to a directory indicated after the command finishes. This report will let you know of any system faults that might increase power consumption, like devices that are blocking certain sleep modes, or which aren’t properly configured to respond to your power management settings.
Windows 8 added “powercfg /batteryreport”, which provides a detailed analysis of battery use, if applicable. Normally output to your Windows user directory, the report provides details about the time and length of charge and discharge cycles, lifetime average battery life, and estimated battery capacity.'
Shutdown

As of Windows 8/8.1 there is now a shutdown command that – you guessed it! – shuts down your computer. This is of course redundant with the already easily accessed shutdown button, but what’s not redundant is the “shutdown /r /o” command, which restarts your PC and launches the Advanced Start Options menu, which is where you can access Safe Mode and Windows recovery utilities. This is useful if you want to restart your computer for troubleshooting purposes.
System File Checker

System File Checker is an automatic scan and repair tool that focuses on Windows system files. You will need to run the command prompt with administrator privileges and enter the command “sfc /scannow”. If any corrupt or missing files are found, they’ll be automatically replaced using cached copies kept by Windows for just that purpose. The command can require a half-hour to run on older notebooks.
Recovery Image

recimgcmd 15 CMD Commands Every Windows User Should Know
Virtually all Windows 8/8.1 computers ship from the factory with a recovery image, but the image may include bloatware you’d rather not have re-installed. Once you’ve un-installed the software you can create a new image using the “recimg” command. Entering this command presents a very detailed explanation of how to use it. You must have administrator privileges to use the recimg command, and you can only access the custom recovery image you create via the Windows 8 “refresh” feature.
Tasklist

The “tasklist” command can be used to provide a current list of all tasks running on your PC. Though somewhat redundant with Task Manager, the command may sometimes find tasks hidden from view in that utility.
tasklist 15 CMD Commands Every Windows User Should Know
There’s also a wide range of modifiers. “Tasklist -svc” shows services related to each task, “tasklist -v” can be used to obtain more detail on each task, and “tasklist -m” can be used to locate .dll files associated with active tasks. These commands are useful for advanced troubleshooting.
Taskkill

Tasks that appear in the “tasklist” command will have an executable and process ID (a four-digit number) associated with them. You can force stop a program using “taskkill -im” followed by the executable’s name, or “taskkill -pid” followed by the process ID. Again, this is a bit redundant with Task Manager, but may be used to kill otherwise unresponsive or hidden programs.

Putty + Remote tunnel + RDP

Installing Putty and Configuring SSH Tunnel and Remote Desktop

On the CLIENT computer we are connecting from, we will need to install Putty and configure it to connect RDP over SSH (ie create the tunnel).

1. To install putty, just extract the Zip for to your C:\Putty folder.  The Putty folder should contain several .exe programs.

2. To run putty, we will just run the Putty.exe in the C:\Putty folder.  To make it easier to launch, you can create a shortcut to Putty.exe and put it on your desktop or in your Start Menu.

3. Under the Session section (on left pane), type in the host name of the pc we are connecting to (in our example on our local network). 10.0.1.5 and leave the port at 22.  Also you can go under the Saved Session box and enter a name to save the profile as for easy connection (more later on this).

Under the Connection > SSH > Tunnels tab, under Source Port, enter in a local port to connect to as our tunnel (i use a very high port in the 40000 range, we’ll use 40000), in the Destination box, we can put in the ip address of the remote computer we have running Copssh/SSH, 10.0.1.5 in my example.

Go back to the Sessions section and click the Save button under the Saved Sessions box and then hit the Open button.

4. You should get a prompt to accept a key the first time we connect, click Yes.

5.  We now should get a command window like interface asking for a user.  Enter your remote computers login username and password.  Once you connect, the command window will change to a local window.

Connecting via Remote Desktop over the SSH Tunnel

1. On the laptop/client computer, open Remote Desktop Connection (Start Menu > All Programs > Accessories > Remote Desktop Connection)

2. Enter in 127.0.0.1:40000 for the computer to connect to.

127.0.0.1 = the local tcp/ip stack loopback address and 40000 = port to connect over.  This in turn forces our remote desktop client to use the SSH tunnel we created at 40000 to connect to our remote pc at the 22 port.

Enable up/Down arrow in powershell

For this, you need PSReadline. First, install PsGet if you don’t have it:To install it just run the following URL in powershell.

(new-object Net.WebClient).DownloadString("http://psget.net/GetPsGet.ps1 ' ') | iex
Then, install PSReadline:

install-module PSReadline
Import PSReadline after loading the persistent history:

Import-Module PSReadLine
And you will be able to recall previous commands with up arrow key. Add the following to have partial history search with up/down arrow key:

Set-PSReadlineKeyHandler -Key UpArrow -Function HistorySearchBackward
Set-PSReadlineKeyHandler -Key DownArrow -Function HistorySearchForward
Lastly, to enable bash style completion:

Set-PSReadlineKeyHandler -Key Tab -Function Complete

History Command in PowerShell

To add the a command to a new or existing profile
On the computer that hosts the data warehouse management server,

click Start, point to Programs, point to Windows PowerShell 1.0, right-click Windows PowerShell, and then click Run as administrator.
At the Windows PowerShell prompt, type the following command, and then press ENTER:
>>Test-path $profile
If the results of the previous command are false, go to step 4. If the results are true, go to step 5.
Type the following command, and then press ENTER.
New-item –type file –force $profile
Type the following command, and then press ENTER.
Notepad $profile

Add the following Content into profile file.

===================

Set-Location C:\
$a = Get-Date
“Date: ” + $a.ToShortDateString()
“Time: ” + $a.ToShortTimeString()
$MaximumHistoryCount = 1KB

if (!(Test-Path ~\PowerShell -PathType Container))
{ New-Item ~\PowerShell -ItemType Directory
}

function bye
{ Get-History -Count 1KB |Export-CSV ~\PowerShell\history.csv
exit
}

if (Test-path ~\PowerShell\History.csv)
{ Import-CSV ~\PowerShell\History.csv |Add-History
}

====================

 

PS> Get-History |Get-Member -MemberType Property
TypeName: Microsoft.PowerShell.Commands.HistoryInfo

Name MemberType Definition
---- ---------- ----------
CommandLine Property System.String CommandLine {get;}
EndExecutionTime Property System.DateTime EndExecutionTime {get;}
ExecutionStatus Property System.Management.Automation.Runspaces.Pip...
Id Property System.Int64 Id {get;}
StartExecutionTime Property System.DateTime StartExecutionTime {get;}

This means that you can find out when something was executed (e.g. which session it happened in) using the following command:

PS> ghy |ft id,endexecutiontime,commandline -auto

Id EndExecutionTime CommandLine
-- ---------------- -----------
612 6/29/2006 5:39:34 AM gcm export-csv |fl *
613 6/30/2006 6:51:16 PM ipconfig
614 6/30/2006 8:51:38 PM cd C:\kits

 

Create a Windows PowerShell Profile

To add the a command to a new or existing profile
On the computer that hosts the data warehouse management server, click Start, point to Programs, point to Windows PowerShell 1.0, right-click Windows PowerShell, and then click Run as administrator.
At the Windows PowerShell prompt, type the following command, and then press ENTER:
Test-path $profile
If the results of the previous command are false, go to step 4. If the results are true, go to step 5.
Type the following command, and then press ENTER.
New-item –type file –force $profile
Type the following command, and then press ENTER.
Notepad $profile
In the profile, type the command you need ,If you are adding this command to an existing profile, add it on a new line at the end of the profile.
On the menu bar, click File, and then click Exit.
In Notepad, click Save.
Type the following commands, and then press ENTER after each command.
Set-ExecutionPolicy RemoteSigned
. $profile

Flush Your Local DNS Cache

 

Windows Vista/Windows 7:
ipconfig /flushdns
Successfully flushed the DNS Resolver Cache.

Windows XP
ipconfig /flushdns
Successfully flushed the DNS Resolver Cache.

Mac OS X 10.5.2 and above
dscacheutil -flushcache

Mac OS X 10.5.1 and below
Click on the Finder icon in your dock. Open your Applications folder.
Inside the Applications folder, click on Utilities and then Terminal.
Type the following command in the Terminal window and press Enter:
lookupd -flushcache

Linux

nscd -i hosts
– Clear local DNS cache for current user.
nscd -I hosts
– Clear local DNS cache for all users.

Connecting wireless through command line

The first command you need to use is ifconfig. With this command you are going to enable your wireless device. Most likely your device will be called wlan0. So in order to enable this you would enter the command (as root):

ifconfig wlan0 up

You won’t see any feedback unless there is a problem.

The next step is to scan for your wireless network to make sure it is available. Do this with the following command:

iwlist wlan0 scan

With this command you will see output like the following:

Cell 01 - Address: 00:21:43:4E:9B:F0
ESSID:"HAIR STROBEL"
Mode:Master
Channel:5
Frequency:2.432 GHz (Channel 5)
Quality=100/100? Signal level:-45 dBm? Noise level=-95 dBm
Encryption key:on
IE: WPA Version 1
Group Cipher : TKIP
Pairwise Ciphers (1) : TKIP
Authentication Suites (1) : PSK
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : TKIP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 22 Mb/s
6 Mb/s; 9 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s
36 Mb/s; 48 Mb/s; 54 Mb/s
Extra:tsf=000002f1d9be01b7

So you know this network is available. From the above output you can also see this network is employing WPA2, so you will need a passkey. If you don’t know that passkey, you are out of luck (which would be the case no matter if you were using a front end in Linux, Windows, or Mac.)

Now it’s time to configure your connection. To do this issue the command:

iwconfig wlan0 essid NETWORK_ID key WIRELESS_KEY

Where NETWORK_ID is the ESSID of the network with which you want to connect and WIRELESS_KEY is the security key needed to connect to the wireless access point.

Note: iwconfig defaults to using a HEX key. If you want to use an ascii key you will have to add the “s:” prefix to your key like so:

iwconfig wlan0 essid NETWORK_ID key s:WIRELESS_KEY

Now that you have your configuration set, it’s time to get an IP address with the help of dhclient. Issue the command:

dhclient wlan0

If no output is reported there are no errors. You should now be up and running.

Make it a script

Of course who wants to type out all of those commands. Instead of doing this you could create a script for this like so:

#! /bin/bash
ifconfig wlan0
iwconfig wlan0 essid NETWORK_ID key WIRELESS_KEY
dhclient wlan0

Where NETWORK_ID is the actually essid of the network and WIRELESS_KEY is the security key for that network. Save this script with the filename wireless_up.sh and then make this script executable with the command:

chmod u+x wireless_up.sh

You can make this a global command by placing this script in /usr/local/bin. You can now issue the command wireless_up.sh from anywhere in your directory structure and it will run, connecting you to the configured wireless access point.

 

sudo iwconfig wlan0 freq 2.422G

Or by running:

sudo iwconfig wlan0 channel 3

ifconfig wlan0 down
iwconfig wlan0 mode managed
ifconfig wlan0 up
iwconfig wlan0 channel 3
iwconfig wlan0 key xxxxxxxxxx
iwconfig wlan0 key restricted
iwconfig wlan0 essid "Blah Blah Foo Bar"
iwconfig wlan0 ap xx:yy:zz:aa:bb:cc
sleep 5
dhcpcd -d wlan0

Hosts file in linux and windows

The hosts file is a computer file used by an operating system to map hostnames to IP addresses. The hosts file is a plain text file, and is conventionally named hosts.

The hosts file is one of several system facilities that assists in addressing network nodes in a computer network. It is a common part of an operating system's Internet Protocol (IP) implementation, and serves the function of translating human-friendly hostnames into numeric protocol addresses, called IP addresses, that identify and locate a host in an IP network.

In some operating systems, the hosts file's content is used preferentially to other methods, such as the Domain Name System (DNS), but many systems implement name service switches (e.g., nsswitch.conf for Linux and Unix) to provide customization. Unlike the DNS, the hosts file is under the direct control of the local computer's administrator

 

Operating System	Version(s)	Location
Unix, Unix-like, POSIX		/etc/hosts[2]
Microsoft Windows	3.1	%WinDir%\HOSTS
	95, 98/98SE, Me	%WinDir%\hosts[3]
	NT, 2000, XP (x86 & x64),[4] 2003, Vista, 7 and 8	%SystemRoot%\system32\drivers\etc\hosts [5]
Windows Mobile		Registry key under HKEY_LOCAL_MACHINE\Comm\Tcpip\Hosts
Apple Macintosh	9 and earlier
	Mac OS X 10.0 – 10.1.5 [6]	(Added through NetInfo or niload)
	Mac OS X 10.2 and newer	/etc/hosts (a symbolic link to /private/etc/hosts)[6]
Novell NetWare		SYS:etc\hosts
OS/2 & eComStation		"bootdrive":\mptn\etc\
Symbian	Symbian OS 6.1–9.0	C:\system\data\hosts
	Symbian OS 9.1+	C:\private\10000882\hosts
MorphOS	NetStack	ENVARC:sys/net/hosts
AmigaOS	4	DEVS:Internet/hosts
Android		/etc/hosts (a symbolic link to /system/etc/hosts)
iOS	iOS 2.0 and newer	/etc/hosts (a symbolic link to /private/etc/hosts)
TOPS-20
Plan 9		/lib/ndb/hosts
BeOS		/boot/beos/etc/hosts[7]
Haiku		/boot/common/settings/network/hosts[7]
OpenVMS	UCX	UCX$HOST
	TCPware	TCPIP$HOST

 

Gcc for windows-Install the MinGW (GCC) Compiler Suite and Cygwin prompt

This Gcc compiler doesn't exactly replaces the normal Linux gcc compiler .First download the file from following link and run it to install MinGW (Minimalist GNU for Windows).We need net connection to install this

http://sourceforge.net/projects/mingw/files/MinGW/





in latest MinGW you will have c compiler in the list .Select the needed components and select the path to which you need to install it.After the installation we need to set the environment .

Create a directory (e.g. C:\MinGW), download all packages to C:\MinGW, extract the files from each package, and add C:\MinGW\bin; to your PATH environment variable using C:\> set PATH=C:\MinGW\bin;%PATH%" .or set it normally with properties of mycomputer>Environment variables.

To get more linux effect in windows install Cygwin from http://www.cygwin.com/install.html to get a terminal effect.and install needed packages as needed in cygwin.to install cygwin also we need internet connection

http://www.eecg.utoronto.ca/~aamodt/ece242/cygwin.html

Connecting to ur computer through ssh and No-IP form mobile or computer

Normally we use ssh for connecting to ur system over internet form other computer or mobile.When using ssh we will be having the ip address of the computer to which we need to connect .we set up a ssh server and we will be able to connect to this server using the ip to get a prompt to use.The main problem when u connect ur computer over internet is the dynamic ip problem.that is when the connection at ur computer is lost and reconnected u get another ip address and u don't know that one.

Solution

Using No-ip to get an static ip for the computer

Actually No-ip doesn't provide any static ip but binds our current ip to a host name so that when ever the ip is changed it automatically gets assigned to the host .thus by using the host name we a access the computer.

step1. Download the no-ip software form there site and install it-->> https://www.no-ip.com/downloads.php

step2.Make an account in the No-ip site and create a host name(which is free)

step3. now add the host name into the No-ip software in ur computer.First u need to use ur login id and password in the software then it will show ur host name .u can just select it.

 

Setting up ssh in windows

we can use freesshd for ssh services in windows.

  just download it from www.freesshd.com and install it.setup an ssh server.set the listen interface to all.and create a user account .with authorization "password stored as sha1"and give the password. and turn up the ssh server

its done now we can use putty to check whether its working or not ..In putty give the host name as host name u registered in no ip and connect

to connect from mobile putty is available for android and Symbian also.in mobile putty we can give the host name and username which we have created.

 

removing Recycler virus

the recycler virus particularly come from pendrives,ipods,mp3 players etc.....which effects our folder's hidden and read only options....so to remove this virus I've got a lengthy,yet a very effective process..

1>restart your PC in safe mode {by pressing the F8 key constantly when the PC is restarted}

2>then run an anti-spyware check...for eg.download MALWAREBYTES ANTIMALWARE [its free]

3>run a complete anti-virus scan

4>clean up your system registry by downloading-- REG SEEKER

5>restart.....

[NOTE]:AFTER THIS PROCESS NEVER OPEN YOUR PENDRIVES OR ANY REMOVAL DRIVE,INSTEAD FORMAT THEM AND THEN OPEN......

Removing the Recycler.exe virus please follow the steps below…

Reboot your computer into Safe Mode, this is important as this is a memory resident virus. Do this by pressing F8 as the machine boots up and select safe mode from the DOS menu. Once in Safe Mode, press enter to stay in safe mode, you don't want to go to Recovery.

1. Open up windows explorer, Start>Programs>Accessories>Explorer

2. Go to (In Vista press ALT to display menus) Tools>Folder Options>View>uncheck the items below: 1>display the contents of system folders

2>hide extensions for known file types

3>hide protected operating system files(Recommended) Leave the other items as they are.

3. Press Apply>OK.

4. Leaving windows explorer open,

navigate to the root of the C:\ drive and remove AUTORUN.INF and any files that end in *.CMD and *.BAT excepting for AUTORUN.BAT and COMMAND.COM which are legacy files you may or may not have. Now go to C:\Recycler and remove anything located in the folders that look like recycle bins, if you are on a network there will be more than one.

5. Delete all instances of the virus on your disk. There are two or three variants of this virus, some put a file in the windows directory named SVHOSTE which is a hidden file - search for this and delete it.

 

6. Remove from Registry. Open Registry Editor.

Click Start>Run, type REGEDIT, then press Enter. In the left panel,

double-click the following: HKEY_LOCAL_MACHINE>SOFTWARE>Microsoft>Active Setup>Installed Components

In the left panel, locate and delete the key: {08B0E5C0-4FCB-11CF-AAX5-90401C608512} Close REGEDIT and click on Start>Run or on Vista just type in the search box MSCONFIG and press enter.

Click the startup tab and uncheck any misspelt entries such as Microssoft and Norrton, also take into account the command of this startup entry, navigate to where these files are located and delete them from your disk. Format any memory sticks you have used with this machine by going into explorer, right click on the disk and clicking format. Once Formatted reboot your virus free machine.

Tweak Windows Explorer to make the command window always available

The default behavior for Windows Explorer in Windows 7 and Vista is to display a context menu when you right-click a folder (Figure A). If you hold the Shift key down and right-click a folder, you will get more menu options on the list (Figure B).

Figure A

Context Menu

Figure B

Shifted Context Menu

This behavior is all well and good, but what if you want to have access to the Open Command Window Here command with just a right-click versus the Shift-right-click it requires by default? The answer involves a Windows Registry file edit.

Registry edit

Standard disclaimer: The Windows Registry File is vitally important to the proper operation of the Windows operating system. Please back up the file before you make any registry edits.

In Windows 7, click on the Start button and type regedit in the search box. Click on the regedit.exe file in the list of items and answer the UAC prompt. Once in the registry editor (Figure C), navigate to this key:

HKEY_CLASSES_ROOT\Drive\shell\cmd

Figure C

Registry editor

In the right-hand pane, right-click the Extended key to rename it to anything besides Extended (Figure D). Or you can simply delete the key, but doing so will make it more difficult to return to the default settings. This change adds the feature to drive icons in Windows Explorer.

Figure D

The Extended key

To add the Open Command Window Here feature to folders displayed in Windows Explorer, navigate to this key in the registry editor:

HKEY_CLASSES_ROOT\Directory\shell\cmd

Once again, in the right-hand pane, right-click the Extended key (Figure E) and change the name or delete it completely if you are so inclined.

Figure E

An alternate access to the Extended key

Close the registry editor, and from now on, when you right-click a drive or a folder from within Windows Explorer you will see Open Command Window Here as one of your available options (Figure G).

Figure G

The now-available Open Command Window Here option

Manually Remove Viruses from Your Windows

Most viruses launch when you log into Windows — they typically call an executable from the registry. In fact, that call will tell you exactly where the virus resides.

Start in the registry.

• Click Start. Click Run and type: regedit.exe


• Registry Editor opens. Expand HKEY_CURRENT_USER


• Then expand Software. Next expand Microsoft.


• Now expand Windows.


• Then expand CurrentVersion.


• Click on the Run folder.

Here you’ll find some of the programs that launch on startup. A rule of thumb: a virus is a randomly generated string that makes no sense.

The real giveaway that this is a virus is the location of the application it’s calling. It’s in the Application Data folder. It launches every time you log in. So no matter how many times you reboot, it comes right back.

Write down where the virus resides. In this case, it’s in the All Users Application Data folder. Then simply right-click the registry key and delete it. Now you haven’t actually deleted the virus, you’ve only deleted the call that launches it, which is doing the minimum. A virus is just a program, after all, so if the virus doesn’t launch it does no harm. But delete the file system anyway.

Now it’s time to go to the Application Data Folder. There is more than one — follow the path exactly as you wrote it down.

if its a VIRUS try the step in SAFEMODE

 

Access Ext2 file system in windows

The software provides Windows NT4.0/2000/XP/2003/Vista/2008 with full access to Linux Ext2 volumes (read access and write access). This may be useful if you have installed both Windows and Linux as a dual boot environment on your computer

If you currently have Windows running and you realize that you need some files for your work which you have stored on an Ext2 volume of your Linux installation, you no longer have to shut down Windows and boot Linux!

Furthermore, Windows will now be able to handle floppy disks which have been formatted with an Ext2 file system.

how it works

It installs a pure kernel mode file system driver Ext2fs.sys, which actually extends the Windows operating system to include the Ext2 file system. Since it is executed on the same software layer at the Windows NT operating system core like all of the native file system drivers of Windows (for instance NTFS, FASTFAT, or CDFS for Joliet/ISO CD-ROMs), all applications can access directly to Ext2 volumes. Ext2 volumes get drive letters (for instance O:). Files, and directories of an Ext2 volume appear in file dialogs of all applications. There is no need to copy files from or to Ext2 volumes in order to work with them.

Download it here

http://dl.dropbox.com/u/30579529/Ext2IFS_1_11a.exe