Cisco Cisco Firepower Management Center 4000

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Glossary
GL-37
FireSIGHT System User Guide
 
server banner
The first 256 bytes of the first packet detected for a 
, which can provide additional information that 
may help you identify the server. The system collects a server banner only once, the first time the server 
is detected.
server certificate
An encrypted certificate issued by a 
 that provides unalterable confirmation of the 
server identity. You can request a certificate from any certificate authority and upload that custom 
certificate to your appliance.
server identity
The 
 type, vendor, and version details for a 
 on a 
.
SFP module
A small form-factor pluggable transceiver that is inserted into a network module on a 71xx Family 
device. Sensing interfaces on SFP modules do not allow 
SHA-256 hash value
Sometimes abbreviated as SHA256, a 32-bit string that represents a file for which you are performing a 
. The hash value is calculated using a cryptographic hash function so that files with 
identical SHA-256 values are very likely to have identical contents.
shared layer
An 
 that you allow to be used by other intrusion policies. Policies using a shared 
layer are updated with changes to 
s and 
s in the shared layer when you 
commit those changes. A shared layer can be modified only in the policy that allows it to be shared; it 
is read-only in policies using it.
shared object rule
An 
 delivered as a binary module compiled from C source code. You can use shared object 
rules to detect attacks in ways that 
s cannot. You cannot modify the rule keywords and 
arguments in a shared object rule; you are limited to either modifying 
s used in the rule, or 
modifying aspects, such as the source and destination ports and IP addresses, and saving a new instance 
of the rule as a custom shared object rule. Shared object rules have a 
 (generator ID) of 3.
SID
Signature ID (also 
 ID), a unique identifying number assigned to each 
. When you 
create a new rule or modify an existing 
, it is given an SID of 1,000,000 or greater. The 
SIDs for 
s and standard text rules delivered with the FireSIGHT System are lower than 
1,000,000. Also, 
s and 
s use SIDs to identify the different types of packets they 
detect.
Sourcefire Software for  X-Series
A software-based application built on Blue Coat’s scalable chassis-based system that provides the 
capabilities of a virtual device.