# Added some DoS limits, removed safe mode (0.3.19)

Post by: satoshi on December 12, 2010, 06:22:33 PM<br>
Last edit: December 13, 2010, 04:45:48 PM by satoshi

There's more work to do on DoS, but I'm doing a quick build of what I have so far in case it's needed, before venturing into more complex ideas. &nbsp;The build for this is version 0.3.19.

\- Added some DoS controls<br>
As Gavin and I have said clearly before, the software is not at all resistant to DoS attack. &nbsp;This is one improvement, but there are still more ways to attack than I can count.

I'm leaving the -limitfreerelay part as a switch for now and it's there if you need it.

\- Removed "safe mode" alerts<br>
"safe mode" alerts was a temporary measure after the 0.3.9 overflow bug. &nbsp;We can say all we want that users can just run with "-disablesafemode", but it's better just not to have it for the sake of appearances. &nbsp;It was never intended as a long term feature. &nbsp;Safe mode can still be triggered by seeing a longer (greater total PoW) invalid block chain.

Builds:
http://sourceforge.net/projects/bitcoin/files/Bitcoin/bitcoin-0.3.19/

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Source file: bitcoin-forum-satoshi-nakamoto.tgz

External link: https://bitcointalk.org/index.php?topic=2228.msg29479#msg29479