There are times where there are large organizations with sophisticated IT teams will use a Whitelist as part of their security measures when setting up their IT infrastructure.
Whitelists is a helpful way of making sure that your business's internet devices can only access preapproved services and applications. You can also use whitelisting to make it so that only preapproved users can access your business' devices. For instance, you can use whitelisting to maintain your incoming email so that you only receive emails from trusted sources.
Many types of whitelisting exist in areas such as:
- Emails
- Apps
- Firewalls
- Local area networks (LANs)
- Advertisements
https://www.salesvu.com
https://api.salesvu.com
https://socket.salesvu.com
https://static.salesvu.com
https://www.townvu.com
https://s3.amazonaws.com
IP addresses that need to be Whitelisted:
IPv4:
- 103.21.244.0/22
- 103.22.200.0/22
- 103.31.4.0/22
- 104.16.0.0/13
- 104.24.0.0/14
- 108.162.192.0/18
- 131.0.72.0/22
- 141.101.64.0/18
- 162.158.0.0/15
- 172.64.0.0/13
- 173.245.48.0/20
- 188.114.96.0/20
- 190.93.240.0/20
- 197.234.240.0/22
- 198.41.128.0/17
IPv6:
- 2400:cb00::/32
- 2606:4700::/32
- 2803:f800::/32
- 2405:b500::/32
- 2405:8100::/32
- 2a06:98c0::/29
- 2c0f:f248::/32
Ports that need to be Whitelisted:
If you are processing credit cards with Worldpay, please whitelist the following IP addresses and websites as well:
74.120.156.0-24 (meaning all numbers from 0 to 24)
74.120.157.0-24
https://transaction.elementexpress.com
https://services.elementexpress.com
https://reporting.elementexpress.com
https://hc.mercurypay.com
http://www.mercurypay.com