User Manual

73
Field Name
Sample value
Explanation
1.
Enable SSH limit
Enable/Disable
Enable SSH connections limit in selected period
2.
Limit period
Second/Minute/Hour/Day
Select in what period limit SSH connections
3.
Limit
“10”
Maximum SSH connections during the period
4.
Limit burst
“5”
Indicating the maximum burst before the above limit kicks
in.
7.6.6.4 HTTP Attack Prevention
HTTP attacks send a complete, legitimate HTTP header, which includes a 'Content-Length' field to specify the size of
the message body to follow. However, the attacker then proceeds to send the actual message body at an extremely slow
rate (i.e. 1 byte/110 seconds). Due to the entire message being correct and complete, the target server will attempt to
obey the 'Content-Length' field in the header, and wait for the entire body of the message to be transmitted, hence slowing
it down.
Field Name
Sample value
Explanation
1.
Enable HTTP limit
Enable/Disable
Limits HTTP connections per period
2.
Limit period
Second/Minute/Hour/Day
Select in what period limit HTTP connections
3.
Limit
“10”
Maximum HTTP connections during the period
4.
Limit burst
“10”
Indicating the maximum burst before the above limit kicks
in.
7.6.6.5 HTTPS Attack Prevention