# Vault 7: Projects

This publication series is about specific projects related to the Vault 7 main publication.

### Grasshopper

# Grasshopper-v1_1-AdminGuide

1 December, 2013

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SECRET//ORCON//NOFORN
4.2 DNSLookup
Description
The “dns_lookup” verb takes in either an IP address or a host name and checks
to see if it the DNS data can be accessed.
Usage
network.dns_lookup(<host data>)
Example
network.dns_lookup(“google.com”)
The above example attempts a DNS lookup on the host “google.com”
Return Values
Return
Code
Description
True If the DNS lookup for the provided host is successful
False If the DNS lookup for the provided host is not successful
Invalid If an error occurred while attempting the DNS lookup
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