Barracuda Networks VERSION SP4 User Manual
59 Barracuda NG Network Access Client - Administrator’s Guide
The following services are available in the Barracuda NG Personal Firewall by default:
3.7
Application Objects
The
Application Objects
tab allows creating predefined applications, which may be employed in rule
sets.
Click
New …
to open the
Edit / Create Application Object
window.
Table 3–5
Service Objects available in the Personal Firewall
Service Name
Port
Protocol
Connection Description
ICMP
O / I
Internet Control Message Protocol; ICMP messages, delivered in IP packets are
used for out-of-band messages related to network operation, or misoperation.
used for out-of-band messages related to network operation, or misoperation.
DNS
53
TCP/UDP
O
Domain Name Service; method by which the Internet addresses in mnemonic form
(for example barracuda.com) are converted into the equivalent numeric IP address
(for example 134.220.4.1)
(for example barracuda.com) are converted into the equivalent numeric IP address
(for example 134.220.4.1)
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
to another server or reference time source
LOC-SRV/EPMAP
135
TCP
O
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 and also three distinct services: Naming, Session, and Datagram.
In NetBIOS, TCP and UDP communication is supported. It supports broadcasts and
multi-casting and also three distinct services: Naming, Session, and Datagram.
NETBIOS-NS
137
UDP
O / I
NETBIOS-DGM
138
UDP
O / I
NETBIOS-SSN
139
TCP
O / I
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.
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.
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.
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
run at certain times or dates
Application Liability
and
Application Type
classifications are purely informational.