User manual

Chapter 3

• Enable Secure POP3 (APOP) The RaQ 3 administrator can

enable the Authentication Post Ofﬁce Protocol (APOP) for a virtual

site. APOP is a challenge-response authentication scheme built on

top of the standard POP protocol. APOP is designed in a way that

protects your password when being sent across the network.

Note: If you enable APOP for a user, that user can check his or

her email only through an APOP client; a regular POP3 client

will not work unless APOP is disabled for that user.

• Anonymous FTP Users without passwords can download and

upload ﬁles through FTP up to the speciﬁed disk-space limit. The

RaQ 3 Administrator can enable the anonymous FTP server for any

virtual site. The administrator can also limit the amount of data that

can be uploaded anonymously and the total number of anonymous

users who can access the virtual site simultaneously.

Note: A virtual site can be name-based or IP-based. If there

are several name-based virtual sites on an IP address, only one

name-based virtual site can use anonymous FTP.

Output bandwidth management

The RaQ 3 allows you to set an output bandwidth limit for each

IP address you assign to a RaQ 3. This feature is available when you

create a virtual site from the Server Management screen or when you

modify the settings of a virtual site. The virtual site must have an

IP address associated in order to specify a bandwidth limit.

The limit is speciﬁed in kilobits per second (Kb/s), and the RaQ 3

enforces a minimum bandwidth limit of 10 Kb/s.

The bandwidth limit applies to all outgoing Transmission Control

Protocol (TCP) trafﬁc on a particular IP address. This includes Web,

FTP, POP and telnet trafﬁc, as well any other TCP-based application.

If multiple users are accessing a bandwidth-limited IP address, the

system divides the bandwidth evenly among the users.

If multiple named-based virtual sites belong to one IP address, the

bandwidth assigned to the IP address is divided evenly among the total

number of users on those name-based virtual sites.

This feature does not regulate input trafﬁc.