Buick ManageUPS Manuel d'utilisateur télécharger pdf (Page 39)

Security

36 ManageUPSNET User Instruction Manual

User Names, Passwords,

and Community Names

User names and passwords are used for logging

into the serial console, Telnet server, FTP server

and the web interface. This information, as well

as SNMP community names, are transmitted in

plain-text over the network. This means that

network sniffers can potentially determine the

user name and passwords by monitoring

network trafﬁc to the device. This,

unfortunately, is a limitation of the internet

protocols themselves.

Ports

You can change the TCP port used by the on

board Telnet, FTP and web servers. The default

setting for these servers is the well-known port

for the speciﬁc protocol. If an arbitrary port is

used, one between 5000 and 65535, you can

effectively “hide” the server. This provides an

additional level of security since the port must

be known by the user when attempting to

connect to the server with client software.

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Buick ManageUPS Manuel d'utilisateur Page 39