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IronPort - CLI reference guide

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nslookup<br />

Description<br />

304<br />

Table 3-113 Changing the <strong>IronPort</strong> Spam Quarantine URL (Continued)<br />

- EDIT - Modify an interface.<br />

- GROUPS - Define interface groups.<br />

- DELETE - Remove an interface.<br />

Use the nslookup command to check the DNS functionality.<br />

Cisco <strong>IronPort</strong> AsyncOS 7.6 <strong>CLI</strong> Reference Guide<br />

Chapter<br />

The nslookup command can confirm that the appliance is able to reach and<br />

resolve hostnames and IP addresses from a working DNS (domain name service)<br />

server.<br />

Table 3-114 nslookup Command Query Types<br />

Query Type Description<br />

A the host's Internet address<br />

CNAME the canonical name for an alias<br />

MX the mail exchanger<br />

NS the name server for the named zone<br />

PTR the hostname if the query is an Internet address, otherwise the pointer<br />

to other information<br />

SOA the domain's “start-of-authority” information<br />

TXT the text information

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