Keeping an Eye on Your Public IP Space in Private

Keeping track of your company’s public IP space is always a good idea.

This means maintaining a centralized up-to-date list of:

– All static IP blocks allocated to you (by an ISP)
– All VPS instances operated by you in the cloud

This makes your life easier by…

• Keeping your  your DNS updated to prevent scenarios like db.yourcompany.com from exposing embarrassing content you don’t control
• Helping keep your IP whitelists updated
• Enabling you to run scans on your exposed attack surface, e.g. with Nessus
• Supplementing inventory management to help prevent old hosts from being forgotten and slipping through the cracks
• Preventing legal trouble in the case of ownership discrepancies or miscommunication
• Most importantly, making pentesters like us at ivision happy and more helpful