자신의 PC 아이피 확인 이메일 발송 Script

① 윈도우 [ 출처: http://exchangeserverpro.com/ ]

<#
This script will monitor your IP for change, and email you if/when it changes
The email send feature uses a valid Gmail account to send the emails, if you don't have one it's easy to get one.
#>

#Get your current public IP address.  I use 1and1.com here as they are a large provider and reply to ping requests.
$a = ping -r 1 1and1.com | Select-String "Route: *." | Get-Unique | Out-String

#In order to check your IP against it's last value it's written to a file each time it is checked.  If the  file or folder do not exist they are created.
#confirm that the file c:\temp\ip.txt exists, if not create it
$path = Test-Path C:\temp\
If ($PATH -ne 'True'){mkdir c:\temp}
$path = Test-Path C:\temp\ip.txt
If ($PATH -ne 'True'){New-Item -ItemType file C:\temp\ip.txt}
$b = Get-Content "C:\temp\ip.txt" | Select-String "Route: *." | Out-String
#compare $a to $b
$c = $a.compareTo($b)
#If $a and $b are not the same, email new IP address
If ($c -ne '0') {
$data = $a
$a > C:\temp\ip.txt
#Email
$EmailFrom = "Yoursendingaccoutn@gmail.com"
$EmailTo = "recipient@domain.com" 
$Subject = "IP Has Changed" 
$Body = $data | Out-String
$SMTPServer = "smtp.gmail.com" 
$SMTPClient = New-Object Net.Mail.SmtpClient($SmtpServer, 587) 
$SMTPClient.EnableSsl = $true 
$SMTPClient.Credentials = New-Object System.Net.NetworkCredential("username", "password"); 
$SMTPClient.Send($EmailFrom, $EmailTo, $Subject, $Body)
EXIT
}
ELSE {
#If $a and $b are the same, exit
echo 'IP Address has not changed'
EXIT
}

② 리눅스 [출처  https://bbs.archlinux.org/ ]
 

curl ifconfig.me | mailx -s "my IP" login@gmail.com

이외의 사이트 : icanhazip.com