How can people running nodes manually protect aganst DoS ? (spam transactions)

[Transisto]

While I think of the SDICE problem as minor I fear transaction spam can be used for DoS.

Apart from the client's automated measures defined here : https://en.bitcoin.it/wiki/Weaknesses#Denial_of_Service_.28DoS.29_attacks

Continuous rate-limit of free transactions to mitigate 'penny-flooding'

Shouldn't the GUI include a way manually raise the minimum fee threshold for relaying transactions ?

Thank You.

[Sergio_Demian_Lerner]

There is the command line switch -limitfreerelay to change that.