{"id":209636,"date":"2014-01-20T00:50:03","date_gmt":"2014-01-19T20:50:03","guid":{"rendered":"http:\/\/savepearlharbor.com\/?p=209636"},"modified":"-0001-11-30T00:00:00","modified_gmt":"-0001-11-29T21:00:00","slug":"","status":"publish","type":"post","link":"https:\/\/savepearlharbor.com\/?p=209636","title":{"rendered":"DHCP Failover \u043d\u0430 \u043a\u043e\u043b\u0435\u043d\u043a\u0435<\/span>"},"content":{"rendered":"
\t\"image\"\/<\/p>\n

\u041e\u0434\u043d\u0438\u043c \u0438\u0437 \u043d\u0430\u0438\u0431\u043e\u043b\u0435\u0435 \u0441\u0443\u0449\u0435\u0441\u0442\u0432\u0435\u043d\u043d\u044b\u0445 \u043d\u043e\u0432\u043e\u0432\u0432\u0435\u0434\u0435\u043d\u0438\u0439 \u0432 Windows Server 2012 \u043b\u0438\u0447\u043d\u043e \u0434\u043b\u044f \u043c\u0435\u043d\u044f \u044f\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u043d\u043e\u0432\u0430\u044f \u0444\u0438\u0447\u0430 \u2013 DHCP Failover. \u042d\u0442\u043e\u0442 \u043c\u0435\u0445\u0430\u043d\u0438\u0437\u043c \u043f\u0440\u0435\u0434\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u044c \u0431\u0430\u043b\u0430\u043d\u0441\u0438\u0440\u043e\u0432\u043a\u0438 \u043d\u0430\u0433\u0440\u0443\u0437\u043a\u0438 \u0438 \u0441\u043e\u0437\u0434\u0430\u043d\u0438\u044f \u0438\u0437\u0431\u044b\u0442\u043e\u0447\u043d\u043e\u0441\u0442\u0438 \u0434\u043b\u044f DHCP \u0441\u0435\u0440\u0432\u0438\u0441\u0430 \u0431\u0435\u0437 \u043f\u0440\u0438\u043c\u0435\u043d\u0435\u043d\u0438\u044f \u043a\u0430\u043a\u0438\u0445-\u043b\u0438\u0431\u043e \u043a\u043b\u0430\u0441\u0442\u0435\u0440\u043d\u044b\u0445 \u0442\u0435\u0445\u043d\u043e\u043b\u043e\u0433\u0438\u0439. \u041d\u043e \u0447\u0442\u043e \u0435\u0441\u043b\u0438, \u043f\u043e \u043a\u0430\u043a\u0438\u043c-\u043b\u0438\u0431\u043e \u043f\u0440\u0438\u0447\u0438\u043d\u0430\u043c, \u0443 \u0432\u0430\u0441 \u043d\u0435\u0442 \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u0438 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u044c Windows Server 2012 \u0432 \u0432\u0430\u0448\u0435\u0439 \u0441\u0440\u0435\u0434\u0435, \u043a\u0430\u043a \u0438 \u0432\u0441\u0435 \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u044b\u0435 \u043a\u043b\u0430\u0441\u0442\u0435\u0440\u043d\u044b\u0435 \u0442\u0435\u0445\u043d\u043e\u043b\u043e\u0433\u0438\u0438? \u0412 \u044d\u0442\u043e\u043c \u0441\u043b\u0443\u0447\u0430\u0435 \u043a \u043d\u0430\u043c \u043d\u0430 \u043f\u043e\u043c\u043e\u0449\u044c \u043f\u0440\u0438\u0445\u043e\u0434\u0438\u0442 PowerShell. \u041e\u043f\u0438\u0441\u0430\u043d\u043d\u043e\u0435 \u043d\u0438\u0436\u0435 \u0440\u0435\u0448\u0435\u043d\u0438\u0435 \u043f\u0440\u043e\u0441\u0442\u043e, \u044d\u0444\u0444\u0435\u043a\u0442\u0438\u0432\u043d\u043e \u0438 \u043e\u0441\u043d\u043e\u0432\u0430\u043d\u043e \u043d\u0430 \u0441\u043b\u0435\u0434\u0443\u044e\u0449\u0438\u0445 \u043a\u043e\u043c\u043f\u043e\u043d\u0435\u043d\u0442\u0430\u0445: PowerShell 2.0, \u0432\u0441\u0442\u0440\u043e\u0435\u043d\u043d\u0430\u044f \u0432 Windows \u0443\u0442\u0438\u043b\u0438\u0442\u0430 netsh \u0438 \u0441\u0442\u0430\u043d\u0434\u0430\u0440\u0442\u043d\u044b\u0439 \u0441\u0438\u0441\u0442\u0435\u043c\u043d\u044b\u0439 \u043f\u043b\u0430\u043d\u0438\u0440\u043e\u0432\u0449\u0438\u043a.
<\/a>
\u041f\u0440\u0435\u0434\u043f\u043e\u043b\u043e\u0436\u0438\u043c, \u0443 \u043d\u0430\u0441 \u0435\u0441\u0442\u044c \u043e\u0441\u043d\u043e\u0432\u043d\u043e\u0439 DHCP \u0441\u0435\u0440\u0432\u0435\u0440 \u0438 \u043d\u0435\u043e\u0431\u0445\u043e\u0434\u0438\u043c\u043e\u0441\u0442\u044c \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0438\u0442\u044c \u0431\u0435\u0441\u043f\u0435\u0440\u0435\u0431\u043e\u0439\u043d\u0443\u044e \u0434\u043e\u0441\u0442\u0443\u043f\u043d\u043e\u0441\u0442\u044c DHCP \u0441\u0435\u0440\u0432\u0438\u0441\u0430. \u0414\u043b\u044f \u044d\u0442\u043e\u0433\u043e \u043f\u043e\u0434\u043d\u0438\u043c\u0430\u0435\u043c \u0432\u0442\u043e\u0440\u043e\u0439 \u0442\u0430\u043a\u043e\u0439 \u0436\u0435 \u0441\u0435\u0440\u0432\u0435\u0440, \u043d\u0430 \u043a\u043e\u0442\u043e\u0440\u044b\u0439 \u043c\u044b \u0431\u0443\u0434\u0435\u043c \u0430\u0432\u0442\u043e\u043c\u0430\u0442\u043e\u043c \u043f\u0435\u0440\u0435\u043a\u043b\u044e\u0447\u0430\u0442\u044c\u0441\u044f \u0432 \u0441\u043b\u0443\u0447\u0430\u0435 \u043d\u0435\u0434\u043e\u0441\u0442\u0443\u043f\u043d\u043e\u0441\u0442\u0438 \u043e\u0441\u043d\u043e\u0432\u043d\u043e\u0433\u043e \u0441\u0435\u0440\u0432\u0435\u0440\u0430 \u0438\u043b\u0438 \u043a\u0440\u0443\u0442\u044f\u0449\u0435\u0433\u043e\u0441\u044f \u0442\u0430\u043c DHCP \u0441\u0435\u0440\u0432\u0438\u0441\u0430. \u0414\u043b\u044f \u0442\u0430\u043a\u043e\u0433\u043e \u043f\u0435\u0440\u0435\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u044f \u043d\u0430\u043c \u043d\u0435\u043e\u0431\u0445\u043e\u0434\u0438\u043c\u043e \u0437\u0430\u043f\u0443\u0441\u0442\u0438\u0442\u044c \u0440\u0435\u0437\u0435\u0440\u0432\u043d\u044b\u0439 DHCP \u0441\u0435\u0440\u0432\u0438\u0441 \u0441 \u0431\u043e\u043b\u0435\u0435-\u043c\u0435\u043d\u0435\u0435 \u0441\u0432\u0435\u0436\u0435\u0439 DHCP \u0431\u0430\u0437\u043e\u0439. <\/p>\n

\u041f\u0435\u0440\u0432\u044b\u0439 \u0448\u0430\u0433: \u043f\u0438\u0448\u0435\u043c \u043d\u0430 Powershell \u0431\u044d\u043a\u0430\u043f \u0441\u043a\u0440\u0438\u043f\u0442 \u0438 \u0437\u0430\u043f\u0443\u0441\u043a\u0430\u0435\u043c \u0435\u0433\u043e \u043d\u0430 \u043e\u0441\u043d\u043e\u0432\u043d\u043e\u043c DHCP \u0441\u0435\u0440\u0432\u0435\u0440\u0435 \u0441 \u043f\u043e\u043c\u043e\u0449\u044c\u044e \u043f\u043b\u0430\u043d\u0438\u0440\u043e\u0432\u0449\u0438\u043a\u0430, \u0435\u0436\u0435\u0434\u043d\u0435\u0432\u043d\u043e \u0432 00-00:<\/p>\n

Script 1<\/b><\/p>\n

#  # DHCP db backup script. # Requires Powershell 2.0. # Prepared by Alexander Lipovetskiy 19.01.2014. #  cls  # Basic variables  $Log = "C:\\DHCP_Failover\\DHCP_Backup.log" $DL = "Alexander.Lipovetskiy@firma.at", "admins@firma.at"  # Functions  function Date { Get-Date -Format G }  function Sendmail      {     Send-MailMessage `     -to $DL `     -From "MainDHCPServer@firma.at" `     -Subject "DHCP service failure!" `     -priority High `     -Body "$(Date) $Message" `     -SmtpServer "mail.firma.at"     }  function Alert     {     Write-Host "$(Date) $Message" -ForegroundColor Red     Write-Output "$(Date) $Message"  | Out-File -FilePath $Log -Append     }  function Notification     {     Write-Host "$(Date) $Message"     Write-Output "$(Date) $Message"  | Out-File -FilePath $Log -Append     }  # DHCP db backup procedure.  $Message = "Starting DHCP db backup procedure..." Notification  # Let's keep one old copy of db. Move-Item -Path "\\\\BackupDHCPServer\\DHCP_Failover\\DHCP_Backup.db" -Destination "\\\\BackupDHCPServer \\DHCP_Failover\\DHCP_Backup.db.previous" -Force  # Run the backup netsh dhcp server export "\\\\BackupDHCPServer \\DHCP_Failover\\DHCP_Backup.db" all  $Message = "DHCP db backup is completed." Notification  # Check if dhcp service is running after backup.  Start-Sleep -Seconds 30 $DHCPservice = Get-Service -Name "DHCPServer" if ($DHCPservice.Status -ne 'Running')     {     $Message = "DHCP service is down after backing up! Trying to start it..."     Alert     Sendmail     $DHCPservice | Start-Service -Confirm:$false     # one more check     Start-Sleep -Seconds 30     $DHCPservice = Get-Service -Name "DHCPServer"     if ($DHCPservice.Status -ne 'Running')         {         $Message = "DHCP service is still down and can't be started!"         Alert         Sendmail         }     else         {         $Message = "DHCP service has been started from second attempt and running now."         Notification         Sendmail         }     }  else     {     $Message = "DHCP service is up and running after the backup procedure."     Notification     } <\/code><\/pre>\n
  \u042d\u0442\u043e\u0442 \u0441\u043a\u0440\u0438\u043f\u0442 \u0437\u0430\u043f\u0443\u0441\u043a\u0430\u0435\u0442 netsh \u0434\u043b\u044f \u0432\u044b\u0433\u0440\u0443\u0437\u043a\u0438 DHCP \u0431\u0430\u0437\u044b \u0432 \u0441\u0435\u0442\u0435\u0432\u0443\u044e \u043f\u0430\u043f\u043a\u0443 \u0440\u0435\u0437\u0435\u0440\u0432\u043d\u043e\u0433\u043e \u0441\u0435\u0440\u0432\u0435\u0440\u0430, \u043e\u0441\u0442\u0430\u0432\u043b\u044f\u044f \u0442\u0430\u043c \u043e\u0434\u043d\u0443 \u043f\u0440\u0435\u0434\u044b\u0434\u0443\u0449\u0443\u044e \u043a\u043e\u043f\u0438\u044e \u0431\u0430\u0437\u044b. \u041f\u043e\u0441\u043b\u0435 \u0432\u044b\u0433\u0440\u0443\u0437\u043a\u0438 \u0441\u043a\u0440\u0438\u043f\u0442 \u043f\u0440\u043e\u0432\u0435\u0440\u044f\u0435\u0442 \u0437\u0430\u043f\u0443\u0441\u0442\u0438\u043b\u0441\u044f \u043b\u0438 DHCP \u0441\u0435\u0440\u0432\u0438\u0441 \u0438 \u0435\u0441\u043b\u0438 \u044d\u0442\u043e\u0433\u043e \u043d\u0435 \u043f\u0440\u043e\u0438\u0437\u043e\u0448\u043b\u043e, \u0442\u043e \u043f\u044b\u0442\u0430\u0435\u0442\u0441\u044f \u0437\u0430\u043f\u0443\u0441\u0442\u0438\u0442\u044c \u0435\u0433\u043e \u0435\u0449\u0435 \u0440\u0430\u0437 (\u0432\u043e \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u0435 \u0432\u044b\u0433\u0440\u0443\u0437\u043a\u0438 netsh \u043e\u0441\u0442\u0430\u043d\u0430\u0432\u043b\u0438\u0432\u0430\u0435\u0442 DHCP \u0441\u0435\u0440\u0432\u0438\u0441, \u0432\u044b\u0433\u0440\u0443\u0436\u0430\u0435\u0442 \u0431\u0430\u0437\u0443, \u0437\u0430\u0442\u0435\u043c \u0441\u043d\u043e\u0432\u0430 \u0435\u0433\u043e \u0437\u0430\u043f\u0443\u0441\u043a\u0430\u0435\u0442). \u0421\u043a\u0440\u0438\u043f\u0442 \u0432\u0435\u0434\u0435\u0442 \u043b\u043e\u0433 \u0432\u0441\u0435\u0445 \u043e\u0448\u0438\u0431\u043e\u043a \u0438 \u0432 \u0441\u043b\u0443\u0447\u0430\u0435 \u043f\u0440\u043e\u0431\u043b\u0435\u043c \u043e\u043f\u043e\u0432\u0435\u0449\u0430\u0435\u0442 \u043d\u0443\u0436\u043d\u044b\u0445 \u043b\u0438\u0446 \u043f\u043e \u043f\u043e\u0447\u0442\u0435. \u0414\u043b\u044f \u044d\u0442\u043e\u0433\u043e \u0435\u0441\u0442\u0435\u0441\u0442\u0432\u0435\u043d\u043d\u043e \u043d\u0435\u043e\u0431\u0445\u043e\u0434\u0438\u043c\u043e \u043d\u0430\u043b\u0438\u0447\u0438\u0435 \u0432 \u0432\u0430\u0448\u0435\u0439 \u0441\u0435\u0442\u0438 \u043f\u043e\u0447\u0442\u043e\u0432\u043e\u0433\u043e \u0441\u0435\u0440\u0432\u0435\u0440\u0430, \u0440\u0430\u0437\u0440\u0435\u0448\u0430\u044e\u0449\u0435\u0433\u043e \u043f\u0435\u0440\u0435\u0441\u044b\u043b\u043a\u0443 \u0432\u043d\u0443\u0442\u0440\u0435\u043d\u043d\u0435\u0439 \u043f\u043e\u0447\u0442\u044b \u0431\u0435\u0437 \u0430\u0432\u0442\u043e\u0440\u0438\u0437\u0430\u0446\u0438\u0438. \u041f\u0440\u0438 \u0437\u0430\u043f\u0443\u0441\u043a\u0435 \u0441\u043a\u0440\u0438\u043f\u0442\u0430 \u0438\u0437 \u043a\u043e\u043d\u0441\u043e\u043b\u0438 \u043c\u043e\u0436\u043d\u043e \u0443\u0432\u0438\u0434\u0435\u0442\u044c \u0431\u043e\u043b\u044c\u0448\u0435 \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u0438 \u043e \u0435\u0433\u043e \u0440\u0430\u0431\u043e\u0442\u0435 \u0442.\u043a. \u0432 \u043b\u043e\u0433 \u0438\u0434\u0443\u0442 \u0442\u043e\u043b\u044c\u043a\u043e \u043e\u0448\u0438\u0431\u043a\u0438. <\/p>\n
  \u0412\u0442\u043e\u0440\u043e\u0439 \u0448\u0430\u0433: \u044d\u0442\u043e \u043d\u0430\u0448 \u043e\u0441\u043d\u043e\u0432\u043d\u043e\u0439 failover \u043c\u0435\u0445\u0430\u043d\u0438\u0437\u043c, \u043a\u043e\u0442\u043e\u0440\u044b\u0439 \u043d\u0430\u0445\u043e\u0434\u0438\u0442\u0441\u044f \u043d\u0430 \u0440\u0435\u0437\u0435\u0440\u0432\u043d\u043e\u043c \u0441\u0435\u0440\u0432\u0435\u0440\u0435. \u0422\u0430\u043c \u043c\u044b \u0432\u0435\u0448\u0430\u0435\u043c \u0441\u043a\u0440\u0438\u043f\u0442, \u043a\u043e\u0442\u043e\u0440\u044b\u0439 \u0437\u0430\u043f\u0443\u0441\u043a\u0430\u0435\u0442\u0441\u044f \u043a\u0430\u0436\u0434\u0443\u044e \u043c\u0438\u043d\u0443\u0442\u0443, \u043d\u0430\u0447\u0438\u043d\u0430\u044f \u0441 00-05 \u0432 \u0442\u0435\u0447\u0435\u043d\u0438\u0435 23 \u0447\u0430\u0441\u043e\u0432 50 \u043c\u0438\u043d\u0443\u0442 (\u043e\u0441\u0442\u0430\u0432\u0438\u043c \u043e\u043a\u043d\u043e \u0432 10 \u043c\u0438\u043d\u0443\u0442 \u043d\u0430 \u0432\u0440\u0435\u043c\u044f \u0431\u044d\u043a\u0430\u043f\u0430).<\/p>\n
  Script 2<\/b><\/p>\n
#  # DHCP failover script. # Requires Powershell 2.0. # Prepared by Alexander Lipovetskiy 19.01.2014. #  cls  # Basic variables  $Log = "C:\\DHCP_Failover\\DHCP_Failover.log" $DHCPMain = "MainDHCPServer" $DL = "Alexander.Lipovetskiy@firma.at", "admins@firma.at"  # Functions  function Date { Get-Date -Format G }  function Sendmail      {     Send-MailMessage `     -to $DL `     -From "BackupDHCPServer@firma.at" `     -Subject "DHCP service failure!" `     -priority High `     -Body "$(Date) $Message" `     -SmtpServer "mail.firma.at"     }  function Alert     {     Write-Host "$(Date) $Message" -ForegroundColor Red     Write-Output "$(Date) $Message" | Out-File -FilePath $Log -Append     }  function Notification     {     Write-Host "$(Date) $Message"      Write-Output "$(Date) $Message"  | Out-File -FilePath $Log -Append     }  function StartBackupDHCPservice     {     #Start backup dhcp service     try         {         $DHCPsrvBackup | Start-Service -Confirm:$false         #import dhcp db from last backup         try              {             netsh dhcp server import "C:\\DHCP_Failover\\DHCP_Backup.db" all             $Message = "DHCP db import from last backup is completed."             Notification             }         catch             {             $Message = "DHCP db import can't be done! Have to use old data."             Alert             Sendmail             }         $Message = "Backup DHCP service has been started."         Notification         SendMail         }     catch         {         $Message = "Backup DHCP service can't be started!"         Alert         Sendmail         }     }  # Check if main DHCP server is online. if (Test-Connection -ComputerName $DHCPMain -Quiet)      {     $Message = "Main DHCP server is online."     Write-Host "$(Date) $Message"     # Check if main dhcp service is running.     $DHCPsrvMain = Get-Service -Name "DHCPServer" -ComputerName $DHCPMain     if ($DHCPsrvMain.Status -eq 'Running')         {         $Message = "DHCP service is running on main server."         Write-Host "$(Date) $Message"         # Stop backup dhcp service if it's running after main dhcp is back.         $DHCPsrvBackup = Get-Service -Name "DHCPServer"         if ($DHCPsrvBackup.Status -ne 'Stopped')             {             $DHCPsrvBackup | Stop-Service -Confirm:$false -Force             $Message = "Backup DHCP service has been stopped as main DHCP is back."             Notification             SendMail             }         else             {             $Message = "Backup DHCP service is not running."             Write-Host "$(Date) $Message"             }          break         }     else          # Start backup dhcp service if it's not running yet         {         $DHCPsrvBackup = Get-Service -Name "DHCPServer"         if ($DHCPsrvBackup.Status -eq 'Running')             {             $Message = "Backup DHCP service is running while main DHCP service is down."             Write-Host "$(Date) $Message"             break             }         else             {             # To prevent unnecessary failovers: wait 30 sec, check again and only then start             Start-Sleep -Seconds 30             $DHCPsrvMain = Get-Service -Name "DHCPServer" -ComputerName $DHCPMain             if ($DHCPsrvMain.Status -ne 'Running')                 {                 $Message = "DHCP service on main server is down! Starting backup DHCP service..."                 Alert                 Sendmail                 StartBackupDHCPservice                 }             else                 {                 $Message = "Main DHCP service is back after a short outage. Do nothing."                 Notification                 break                 }             }         }     } else      {     # Start backup dhcp service if it's not running yet     $DHCPsrvBackup = Get-Service -Name "DHCPServer"     if ($DHCPsrvBackup.Status -eq 'Running')         {         $Message = "Backup DHCP service is running while main DHCP server is offline."         Write-Host "$(Date) $Message"         break         }     else         {         $Message = "Main DHCP server is offline! Starting backup DHCP service..."         Alert         Sendmail         StartBackupDHCPservice         }     } <\/code><\/pre>\n
  \u0412\u043a\u0440\u0430\u0442\u0446\u0435, \u044d\u0442\u043e\u0442 \u0441\u043a\u0440\u0438\u043f\u0442 \u043c\u043e\u043d\u0438\u0442\u043e\u0440\u0438\u0442 \u043e\u0441\u043d\u043e\u0432\u043d\u043e\u0439 DHCP \u0441\u0435\u0440\u0432\u0435\u0440 \u0438 \u0437\u0430\u043f\u0443\u0441\u043a\u0430\u0435\u0442 \u0441\u0432\u043e\u0439 \u0440\u0435\u0437\u0435\u0440\u0432\u043d\u044b\u0439 DHCP \u0441\u0435\u0440\u0432\u0438\u0441 \u0432 \u0441\u043b\u0443\u0447\u0430\u0435, \u0435\u0441\u043b\u0438 \u043e\u0441\u043d\u043e\u0432\u043d\u043e\u0439 \u0441\u0435\u0440\u0432\u0435\u0440 \u043d\u0435\u0434\u043e\u0441\u0442\u0443\u043f\u0435\u043d \u0438\u043b\u0438 \u0432 \u0441\u043b\u0443\u0447\u0430\u0435, \u0435\u0441\u043b\u0438 \u043e\u0441\u043d\u043e\u0432\u043d\u043e\u0439 \u0441\u0435\u0440\u0432\u0435\u0440 \u0434\u043e\u0441\u0442\u0443\u043f\u0435\u043d, \u043d\u043e DHCP \u0441\u0435\u0440\u0432\u0438\u0441 \u0442\u0430\u043c \u043d\u0435 \u0440\u0430\u0431\u043e\u0442\u0430\u0435\u0442 \u043f\u043e \u043a\u0430\u043a\u0438\u043c-\u043b\u0438\u0431\u043e \u043f\u0440\u0438\u0447\u0438\u043d\u0430\u043c. \u041f\u0440\u043e\u0438\u0441\u0445\u043e\u0434\u0438\u0442 \u0437\u0430\u043f\u0443\u0441\u043a \u0440\u0435\u0437\u0435\u0440\u0432\u043d\u043e\u0433\u043e DHCP \u0438 \u043f\u043e\u0434\u0433\u0440\u0443\u0437\u043a\u0430 \u043f\u043e\u0441\u043b\u0435\u0434\u043d\u0435\u0439 \u0431\u0430\u0437\u044b. \u041a\u043e\u0433\u0434\u0430 \u043e\u0441\u043d\u043e\u0432\u043d\u043e\u0439 \u0441\u0435\u0440\u0432\u0435\u0440 \u0441\u043d\u043e\u0432\u0430 \u0432 \u0441\u0442\u0440\u043e\u044e \u2014 \u043f\u0440\u043e\u0438\u0441\u0445\u043e\u0434\u0438\u0442 \u043e\u0442\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u0435 \u0440\u0435\u0437\u0435\u0440\u0432\u043d\u043e\u0433\u043e \u0441\u0435\u0440\u0432\u0438\u0441\u0430. \u041d\u0443 \u0438 \u0442\u0430\u043a\u0436\u0435 \u0432\u0435\u0434\u0435\u0442\u0441\u044f \u043b\u043e\u0433 \u0438 \u043f\u0440\u043e\u0438\u0441\u0445\u043e\u0434\u044f\u0442 \u0432\u0441\u0435 \u0442\u0435 \u0436\u0435 \u043f\u043e\u0447\u0442\u043e\u0432\u044b\u0435 \u043e\u043f\u043e\u0432\u0435\u0449\u0435\u043d\u0438\u044f \u0441 \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u0435\u0439, \u0441\u043e\u043e\u0442\u0432\u0435\u0442\u0441\u0442\u0432\u0443\u044e\u0449\u0435\u0439 \u0442\u043e\u043c\u0443, \u0447\u0442\u043e \u043f\u0440\u043e\u0438\u0437\u043e\u0448\u043b\u043e.<\/p>\n
  \u041e\u0431\u0430 \u0441\u043a\u0440\u0438\u043f\u0442\u0430 \u043f\u0440\u0430\u0432\u0438\u043b\u044c\u043d\u0435\u0435 \u0431\u0443\u0434\u0435\u0442 \u0437\u0430\u043f\u0443\u0441\u043a\u0430\u0442\u044c \u043e\u0442 \u0438\u043c\u0435\u043d\u0438\u0438 \u0441\u043f\u0435\u0446\u0438\u0430\u043b\u044c\u043d\u043e \u0432\u044b\u0434\u0435\u043b\u0435\u043d\u043d\u043e\u0433\u043e \u0434\u043b\u044f \u044d\u0442\u043e\u0433\u043e \u0430\u043a\u043a\u0430\u0443\u043d\u0442\u0430, \u0434\u0430\u0432 \u0435\u043c\u0443 \u043f\u0440\u0438 \u044d\u0442\u043e\u043c \u043f\u0440\u0430\u0432\u0430 \u0430\u0434\u043c\u0438\u043d\u0430 \u043d\u0430 \u043e\u0431\u043e\u0438\u0445 \u0441\u0435\u0440\u0432\u0435\u0440\u0430\u0445.<\/p>\n
  \u0415\u0441\u043b\u0438 \u044f \u0447\u0442\u043e-\u0442\u043e \u0437\u0430\u0431\u044b\u043b \u0438\u043b\u0438 \u0443 \u0432\u0430\u0441 \u043f\u0440\u043e\u0441\u0442\u043e \u0435\u0441\u0442\u044c \u0432\u043e\u043f\u0440\u043e\u0441\u044b \u2013 \u0431\u0443\u0434\u0443 \u0440\u0430\u0434 \u043e\u0442\u0432\u0435\u0442\u0438\u0442\u044c \u0432 \u043a\u043e\u043c\u043c\u0435\u043d\u0442\u0430\u0445.    \t<\/p>\n
<\/div>\n<\/p><\/div>\n
 \u0441\u0441\u044b\u043b\u043a\u0430 \u043d\u0430 \u043e\u0440\u0438\u0433\u0438\u043d\u0430\u043b \u0441\u0442\u0430\u0442\u044c\u0438  http:\/\/habrahabr.ru\/post\/209636\/<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"
   \t\"image\"\/<\/p>\n
  \u041e\u0434\u043d\u0438\u043c \u0438\u0437 \u043d\u0430\u0438\u0431\u043e\u043b\u0435\u0435 \u0441\u0443\u0449\u0435\u0441\u0442\u0432\u0435\u043d\u043d\u044b\u0445 \u043d\u043e\u0432\u043e\u0432\u0432\u0435\u0434\u0435\u043d\u0438\u0439 \u0432 Windows Server 2012 \u043b\u0438\u0447\u043d\u043e \u0434\u043b\u044f \u043c\u0435\u043d\u044f \u044f\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u043d\u043e\u0432\u0430\u044f \u0444\u0438\u0447\u0430 \u2013 DHCP Failover. \u042d\u0442\u043e\u0442 \u043c\u0435\u0445\u0430\u043d\u0438\u0437\u043c \u043f\u0440\u0435\u0434\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u044c \u0431\u0430\u043b\u0430\u043d\u0441\u0438\u0440\u043e\u0432\u043a\u0438 \u043d\u0430\u0433\u0440\u0443\u0437\u043a\u0438 \u0438 \u0441\u043e\u0437\u0434\u0430\u043d\u0438\u044f \u0438\u0437\u0431\u044b\u0442\u043e\u0447\u043d\u043e\u0441\u0442\u0438 \u0434\u043b\u044f DHCP \u0441\u0435\u0440\u0432\u0438\u0441\u0430 \u0431\u0435\u0437 \u043f\u0440\u0438\u043c\u0435\u043d\u0435\u043d\u0438\u044f \u043a\u0430\u043a\u0438\u0445-\u043b\u0438\u0431\u043e \u043a\u043b\u0430\u0441\u0442\u0435\u0440\u043d\u044b\u0445 \u0442\u0435\u0445\u043d\u043e\u043b\u043e\u0433\u0438\u0439. \u041d\u043e \u0447\u0442\u043e \u0435\u0441\u043b\u0438, \u043f\u043e \u043a\u0430\u043a\u0438\u043c-\u043b\u0438\u0431\u043e \u043f\u0440\u0438\u0447\u0438\u043d\u0430\u043c, \u0443 \u0432\u0430\u0441 \u043d\u0435\u0442 \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u0438 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u044c Windows Server 2012 \u0432 \u0432\u0430\u0448\u0435\u0439 \u0441\u0440\u0435\u0434\u0435, \u043a\u0430\u043a \u0438 \u0432\u0441\u0435 \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u044b\u0435 \u043a\u043b\u0430\u0441\u0442\u0435\u0440\u043d\u044b\u0435 \u0442\u0435\u0445\u043d\u043e\u043b\u043e\u0433\u0438\u0438? \u0412 \u044d\u0442\u043e\u043c \u0441\u043b\u0443\u0447\u0430\u0435 \u043a \u043d\u0430\u043c \u043d\u0430 \u043f\u043e\u043c\u043e\u0449\u044c \u043f\u0440\u0438\u0445\u043e\u0434\u0438\u0442 PowerShell. \u041e\u043f\u0438\u0441\u0430\u043d\u043d\u043e\u0435 \u043d\u0438\u0436\u0435 \u0440\u0435\u0448\u0435\u043d\u0438\u0435 \u043f\u0440\u043e\u0441\u0442\u043e, \u044d\u0444\u0444\u0435\u043a\u0442\u0438\u0432\u043d\u043e \u0438 \u043e\u0441\u043d\u043e\u0432\u0430\u043d\u043e \u043d\u0430 \u0441\u043b\u0435\u0434\u0443\u044e\u0449\u0438\u0445 \u043a\u043e\u043c\u043f\u043e\u043d\u0435\u043d\u0442\u0430\u0445: PowerShell 2.0, \u0432\u0441\u0442\u0440\u043e\u0435\u043d\u043d\u0430\u044f \u0432 Windows \u0443\u0442\u0438\u043b\u0438\u0442\u0430 netsh \u0438 \u0441\u0442\u0430\u043d\u0434\u0430\u0440\u0442\u043d\u044b\u0439 \u0441\u0438\u0441\u0442\u0435\u043c\u043d\u044b\u0439 \u043f\u043b\u0430\u043d\u0438\u0440\u043e\u0432\u0449\u0438\u043a.  <\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[],"tags":[],"class_list":["post-209636","post","type-post","status-publish","format-standard","hentry"],"_links":{"self":[{"href":"https:\/\/savepearlharbor.com\/index.php?rest_route=\/wp\/v2\/posts\/209636","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/savepearlharbor.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/savepearlharbor.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/savepearlharbor.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/savepearlharbor.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=209636"}],"version-history":[{"count":0,"href":"https:\/\/savepearlharbor.com\/index.php?rest_route=\/wp\/v2\/posts\/209636\/revisions"}],"wp:attachment":[{"href":"https:\/\/savepearlharbor.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=209636"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/savepearlharbor.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=209636"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/savepearlharbor.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=209636"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}