diff --git a/commoncrawl_transfer.ps1 b/commoncrawl_transfer.ps1
index f8dab9c..e93995f 100644
--- a/commoncrawl_transfer.ps1
+++ b/commoncrawl_transfer.ps1
@@ -17,10 +17,13 @@ $sessionOptions = New-Object $sessionOptionsType
 
 # Set properties for session options
 $sessionOptions.Protocol = [WinSCP.Protocol]::Sftp
-$sessionOptions.HostName = "37.27.11.121"
+$sessionOptions.HostName = "65.109.140.15"
 $sessionOptions.UserName = "root"
 $sessionOptions.Password = "Tcft65rdx!"
-$sessionOptions.SshHostKeyFingerprint = "ssh-ed25519 255 lM6ZIlmihQWkYz3iJONHYEkUPeJaUMUNOx7Av9CftuY"
+$sessionOptions.SshHostKeyFingerprint = "ssh-ed25519 255 UeJ2ZrZQte4L0Inyewiu0BJ/PtPf+pc3OxF01xExWes"
+
+# Specify the path for the local record file
+$recordFilePath = "E:\CommonCrawl\transferred_files.txt"
 
 try
 {
@@ -33,6 +36,11 @@ try
     # Specify the remote directory path
     $remotePath = "/opt/"
 
+    # Check if the record file exists, if not, create it
+    if (-not (Test-Path $recordFilePath)) {
+        New-Item -ItemType File -Path $recordFilePath | Out-Null
+    }
+
     do
     {
         # Get a list of files matching the pattern "_urls.txt.zst"
@@ -48,22 +56,18 @@ try
         # Iterate through each file and download/delete it
         foreach ($fileInfo in $remoteFiles)
         {
+            # Check if the file has been transferred before
+            if ((Get-Content $recordFilePath) -contains $fileInfo.FullName) {
+                Write-Host "File already transferred: $($fileInfo.FullName)"
+                continue
+            }
+
             # Construct the full remote file path
             $remoteFilePath = [WinSCP.RemotePath]::Combine($remotePath, $fileInfo.FullName)
 
             # Construct the local file path
             $localFilePath = [System.IO.Path]::Combine("E:\CommonCrawl", $fileInfo.Name)
 
-            # Check if lock file exists
-            $lockFilePath = $remoteFilePath + ".lock"
-            if ($session.FileExists($lockFilePath)) {
-                Write-Host "Lock file exists. Skipping file: $remoteFilePath"
-                continue
-            }
-
-            # Create lock file
-            $session.PutFiles("/dev/null", $lockFilePath).Check()
-
             # Download the file
             $transferResult = $session.GetFiles($remoteFilePath, $localFilePath, $True)
 
@@ -72,6 +76,9 @@ try
             {
                 Write-Host "Download successful: $localFilePath"
 
+                # Record the transferred file
+                Add-Content -Path $recordFilePath -Value $fileInfo.FullName
+
                 # Attempt to delete the remote file
                 $removalResult = $session.RemoveFiles($remoteFilePath)
 
@@ -89,9 +96,6 @@ try
             {
                 Write-Host "Failed to download file: $remoteFilePath"
             }
-
-            # Remove lock file
-            $session.RemoveFiles($lockFilePath).Check()
         }
 
         # Get a new list of files after downloading