ZyXEL Communications ZyXEL ZyAIR 100 - Manual (Page 177)

ZyWALL 10~100 Series Internet Security Gateway
Firewall Screens 12-19
Table 12-5 Predefined Services
SERVICE DESCRIPTION
SMTP(TCP:25) Simple Mail Transfer Protocol is the message-exchange standard for the
Internet. SMTP enables you to move messages from one e-mail server to
another.
SNMP(TCP/UDP:161) Simple Network Management Program.
SNMP-
TRAPS(TCP/UDP:162) Traps for use with the SNMP (RFC:1215).
SQL-NET(TCP:1521) Structured Query Language is an interface to access data on many
different types of database systems, including mainframes, midrange
systems, UNIX systems and network servers.
SSH(TCP/UDP:22) Secure Shell Remote Login Program.
STRM WORKS(UDP:1558) Stream Works Protocol.
SYSLOG(UDP:514) Syslog allows you to send system logs to a UNIX server.
TACACS(UDP:49) Login Host Protocol used for (Terminal Access Controller Access Control
System).
TELNET(TCP:23) Telnet is the login and terminal emulation protocol common on the Internet
and in UNIX environments. It operates over TCP/IP networks. Its primary
function is to allow users to log into remote host systems.
TFTP(UDP:69) Trivial File Transfer Protocol is an Internet file transfer protocol similar to
FTP, but uses the UDP (User Datagram Protocol) rather than TCP
(Transmission Control Protocol).
VDOLIVE(TCP:7000) Another videoconferencing solution.
12.8 Alerts
Alerts are reports on events, such as attacks, that you may want to know about right away. You can choose to
generate an alert when an attack is detected in the Attack Alert screen (Figure 12-12 - check the Generate
alert when attack detected checkbox) or when a rule is matched in the Rule Config screen (see Figure
12-4)
. When an event generates an alert, a message is immediately sent to an e-mail account specified by
you. Enter the complete e-mail address to which alert messages will be sent in the E-mail Alerts To field
and schedule times for sending alerts in the Log Timer fields in the E-mail screen (following screen).