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How to Use PowerShell to Detect Logins and Alert Through Email using SendGrid

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From Microsoft MSDN, The Get-WinEvent data from event logs that are generated by the Windows Event Log technology introduced in Windows Vista.And, events in log files generated by Event Tracing for Windows (ETW).By default, Get-WinEvent returns event information in the order of newest to oldest.

Get-winevent : Gets events from event logs and event tracing log files on local and remote computers. The Get-WinEvent cmdlet uses the LogName parameter to specify the Windows PowerShell event log. The event objects are stored in the $Event variable.

This script reads the event log “Microsoft-Windows-TerminalServices-LocalSessionManager/Operational” from servers and outputs the human-readable results to Mail. The -MaxEvents 1 Specifies the maximum number of events that are returned. Enter an integer such as 100. The default is to return all the events in the logs or files.

#################################################################
#Project : How to Use PowerShell to Detect Logins and Alert Through Email using SendGrid
#Developer : Thiyagu S (dotnet-helpers.com)
#Tools : PowerShell 5.1.15063.1155 
#E-Mail : mail2thiyaguji@gmail.com 
##################################################################

$Timestamp = [System.TimeZoneInfo]::ConvertTimeBySystemTimeZoneId((Get-Date), 'India Standard Time')
$Text = "Timelines in IST"
$EmailBody = get-winevent -filterhashtable @{logname='Microsoft-Windows-TerminalServices-LocalSessionManager/Operational';id=21} -MaxEvents 1 | Format-List -Property TimeCreated,Message
$EmailFrom = "servermonitor@dotnet-helpers.com"
$EmailTo = "dotnet-helpers@accenture.com mail2thiyaguji@gmail.com"
$EmailSubject = "Server Login Notification"
$SMTPServer = "smtp.sendgrid.net"
[string][ValidateNotNullOrEmpty()] $Username = "azure_ad8e8e784erf789.com"
[string][ValidateNotNullOrEmpty()] $pwd = "xxxxxxxxxxx"
$pwd1 = ConvertTo-SecureString -String $pwd -AsPlainText -Force
$cred = new-object -typename System.Management.Automation.PSCredential -argumentlist $Username, $pwd1
$SMTPPort = 587
Send-MailMessage -From $EmailFrom -To $EmailTo -Subject $EmailSubject -body ($EmailBody + "($Text)" + "($Timestamp)" | Out-String) -SmtpServer $SMTPServer -Port $SMTPPort -Credential $cred

The Windows Task Scheduler can automatically send email at a specific time or in response to a specific event. The below article will help to configure the script in Windows Scheduler Task

Creating a scheduled task with PowerShell

Here i setting this script to execute the script if any user log in to the server, so it will intimate to the supervisor by triggering mail. Go to Triggers tab and add a new trigger. The trigger should be set to fire at log on, which can be selected from the drop down.

OUTPUT:

Jquery

.width() method in Jquery

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Description:

The jQuery width() method is used to GET/SET the width for the selected element. In simple, width () method can be split in to two purposes

  • GET width : It will return the width for the selected/matched element
  • SET width : It will set the width for the selected/matched element

Syntax

  • $(selector).width ()
  • $(selector).width (value)
  • $(selector).width (function(index,currentwidth ))
Value   It specifies the width in px, pt, em, etc. In default it treat as px.
function(index,currentclass) A function that returns one or more class names to remove
index : Returns the index position of the matched element
currentclass : Returns the current class name of the matched element

Difference between .css(“width”) & .width():

.css( “width” ) : It will returns with unit value (for example, 200px)
.width() : It return with units less (for example, 200).

When to use?

If we need to perform some mathematical calculation based on the element’s width then we can use .width() method.

Example: 

<html>
<head>
 <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"> </script>
 <style>
 .defaultClass {
 border: 5px solid #eed5b7;
 padding: 10px;
 width: 50px;
 height: 50px;
 background-color: red;
 display:inline-block;
 }
 
 </style>
 <script type="text/javascript">
 $(document).ready(function () {
 $('.btnClass').click(function () {
 $('.defaultClass').width(80).css({ backgroundColor: '#4cff00' })
 $('#divCurrentHeight').text(" Current Div height is: "+ $('.defaultClass').width());
 })
 });
 </script>
</head>
<body>
 <button class="btnClass" id="addMethod">SET/GET width() CSS property</button><br/><br />
 <div id="divbox1" class="defaultClass">
 </div>
 <div id="divbox2" class="defaultClass">
 </div>
 <br /><br />
 <div id="divCurrentHeight"></div>
</body>
</html>

Output: 

Clicking on button, the .width (80) method will  execute and set 80 for the selected element and .width () method will GET the width of the selected div as shown below .