OpenSMTPd Denial-of-Service with table-mysql (using default configuration)

2022-08-30 Thread Tobias Fiebig
Heho, I just started to see some DoS issue on my OpenSMTPd with table-mysql as the backend. Specifically, my server ran into the user lookup process eating a full core and torturing the mysql server after some funny brute-force attempts came in. (writeup with graphs here: https://doing-stupid-t

Re: OpenSMTPd Denial-of-Service with table-mysql (using default configuration)

2024-05-13 Thread Philipp
Hi Sorry, this mail was overseen. [2022-08-30 13:23] "Tobias Fiebig" > I just started to see some DoS issue on my OpenSMTPd with table-mysql as the > backend. Specifically, my server ran into the user lookup process eating a > full core and torturing the mysql > server after some funny brute-f

Re: OpenSMTPd Denial-of-Service with table-mysql (using default configuration)

2024-05-13 Thread Omar Polo
On 2024/05/13 09:38:40 +0200, Philipp wrote: > Hi > > Sorry, this mail was overseen. Yeah, sorry. > [2022-08-30 13:23] "Tobias Fiebig" > > I just started to see some DoS issue on my OpenSMTPd with table-mysql as > > the backend. Specifically, my server ran into the user lookup process > > ea