Table 9–9Service Objects available in the Personal Firewall

Service Name

Port

Protocol

Connection

Description

 

 

 

 

 

BOOTPS

67

UDP

O

Bootstrap protocol; also used for DHCP (Dynamic Host Configuration)

 

 

 

 

 

Kerberos

88

TCP/UDP

O

Protocol for authentication in Windows 2000 environment

 

 

 

 

 

NTP

123

UDP

O

Network Time Protocol; used to synchronize the time of a computer client or server to

 

 

 

 

another server or reference time source

LOC-SRV/EPMAP

135

TCP

O

 

 

 

 

NETBIOS-NS

137

UDP

O / I

 

 

 

 

NETBIOS-DGM

138

UDP

O / I

 

 

 

 

NETBIOS-SSN

139

TCP

O / I

NETBIOS; very common protocol; it is supported on both, Ethernet and TokenRing. In NetBIOS, TCP and UDP communication is supported. It supports broadcasts and multi-casting plus three distinct services: Naming, Session, and Datagram.

SNMP

161

UDP

O

Simple Network Protocol; Network management system contains two primary

 

 

 

 

elements – Manager (console to perform network management functions) and Agents

 

 

 

 

(entities that interface to the actual managed device). SNMP allows Managers and

 

 

 

 

Agents to communicate.

 

 

 

 

 

LDAP

389

TCP/UDP

O

Lightweight Directory Access Protocol; set of protocols for accessing information

 

 

 

 

directories.

 

 

 

 

 

CIFS

445

TCP

O / I

further development of the SMB protocol and serves as an addition and improvement

 

 

 

 

to the standard protocols FTP and HTTP.

 

 

 

 

 

MSTASK

1026

TCP

O

Windows Task Scheduler; used to schedule tasks, such as backups or updates, to run

 

 

 

 

at certain times or dates

 

 

 

 

 

9.8.9Applications

The Application Objects window allows creating predefined applications, which may be employed in rule sets.

Click New… to open the Application Object window.

Application Liability and Application Type classification is purely informational.

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Barracuda Networks VERSION SP4 manual Applications, Kerberos