[opensuse-security] how I can block attacks DoS with Susefirewall2
hi list, few days ago I had an attack in my networks , of several pc infected with virus they sent many connections to my port 25 of my mail server, like I can avoid these attacks ? I was thinking of limiting the connections per seconds at port 25 , like could make this with susefirewall2 ? greetings rickygm --------------------------------------------------------------------- To unsubscribe, e-mail: opensuse-security+unsubscribe@opensuse.org For additional commands, e-mail: opensuse-security+help@opensuse.org
troxlinux escribió:
hi list, few days ago I had an attack in my networks , of several pc infected with virus they sent many connections to my port 25 of my mail server, like I can avoid these attacks ?
see this report https://bugzilla.novell.com/show_bug.cgi?id=104602 i.e FW_SERVICES_ACCEPT_EXT="0/0,tcp,22,,hitcount=3,blockseconds=60,recentname=ssh" to somewhat minimize ssh bruteforce attempts, you can do something similar with SMTP if you know what are you doing. -- "The only thing that interferes with my learning is my education." - Albert Einstein Cristian Rodríguez R. Platform/OpenSUSE - Core Services SUSE LINUX Products GmbH Research & Development http://www.opensuse.org/ --------------------------------------------------------------------- To unsubscribe, e-mail: opensuse-security+unsubscribe@opensuse.org For additional commands, e-mail: opensuse-security+help@opensuse.org
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Cristian Rodríguez -
troxlinux