Comments on: Using iptables to Block Brute Force Attacks http://www.ducea.com/2006/06/28/using-iptables-to-block-brute-force-attacks/ The Journal Of A Linux Sysadmin Fri, 12 Mar 2010 08:43:02 +0000 http://wordpress.org/?v=2.9.2 hourly 1 By: - Marius -http://www.ducea.com/2006/06/28/using-iptables-to-block-brute-force-attacks/comment-page-1/#comment-181204 - Marius - Wed, 21 Oct 2009 23:36:12 +0000 http://www.ducea.com/2006/06/28/using-iptables-to-block-brute-force-attacks/#comment-181204 @Ben: what distro do you use? did you built iptables manually? @Ben: what distro do you use? did you built iptables manually?

]]> By: Benhttp://www.ducea.com/2006/06/28/using-iptables-to-block-brute-force-attacks/comment-page-1/#comment-181199 Ben Tue, 20 Oct 2009 04:18:02 +0000 http://www.ducea.com/2006/06/28/using-iptables-to-block-brute-force-attacks/#comment-181199 I thought i followed this correctly but twice i've had the same error:iptables v1.3.5: Unknown arg `badconns' I thought i followed this correctly but twice i’ve had the same error:

iptables v1.3.5: Unknown arg `badconns’

]]> By: Af Jes Kasper Klittum » Blog Archive » Using Varnish and iptables_recent to fend off Slowloris attacks on CentOShttp://www.ducea.com/2006/06/28/using-iptables-to-block-brute-force-attacks/comment-page-1/#comment-180525 Af Jes Kasper Klittum » Blog Archive » Using Varnish and iptables_recent to fend off Slowloris attacks on CentOS Thu, 25 Jun 2009 10:46:33 +0000 http://www.ducea.com/2006/06/28/using-iptables-to-block-brute-force-attacks/#comment-180525 [...] These guides were used to compose this walk-through: http://wiki.tyk.nu/index.php/Using_Varnish_to_protect_Apache_against_slowloris#Configuring_Varnish http://developer.mindtouch.com/User:PeteE/Varnish_Installation http://varnish.projects.linpro.no/ http://maxgarrick.com/reverse-proxy-with-nginx http://www.ducea.com/2006/06/28/using-iptables-to-block-brute-force-attacks/ [...] [...] These guides were used to compose this walk-through: http://wiki.tyk.nu/index.php/Using_Varnish_to_protect_Apache_against_slowloris#Configuring_Varnish http://developer.mindtouch.com/User:PeteE/Varnish_Installation http://varnish.projects.linpro.no/ http://maxgarrick.com/reverse-proxy-with-nginx http://www.ducea.com/2006/06/28/using-iptables-to-block-brute-force-attacks/ [...]

]]> By: Linux Czar » Blog Archive » LinuxCzar On the Movehttp://www.ducea.com/2006/06/28/using-iptables-to-block-brute-force-attacks/comment-page-1/#comment-179596 Linux Czar » Blog Archive » LinuxCzar On the Move Mon, 19 Jan 2009 03:39:38 +0000 http://www.ducea.com/2006/06/28/using-iptables-to-block-brute-force-attacks/#comment-179596 [...] also discovered a great iptables tip to block SSH scans.  The downside is that it will catch normal users if you start up too many SSH [...] [...] also discovered a great iptables tip to block SSH scans.  The downside is that it will catch normal users if you start up too many SSH [...]

]]> By: Alexhttp://www.ducea.com/2006/06/28/using-iptables-to-block-brute-force-attacks/comment-page-1/#comment-179422 Alex Wed, 24 Dec 2008 19:41:24 +0000 http://www.ducea.com/2006/06/28/using-iptables-to-block-brute-force-attacks/#comment-179422 Awesome article! Works as promisedThanks Awesome article!
Works as promised

Thanks

]]> By: Lukosragehttp://www.ducea.com/2006/06/28/using-iptables-to-block-brute-force-attacks/comment-page-1/#comment-178442 Lukosrage Wed, 13 Aug 2008 21:40:11 +0000 http://www.ducea.com/2006/06/28/using-iptables-to-block-brute-force-attacks/#comment-178442 Thanks for providing this nice write up I made some changes for my application, but the method you published works as promised.At least on all of my fedora boxes. :) Thanks for providing this nice write up I made some changes for my application, but the method you published works as promised.

At least on all of my fedora boxes. :)

]]> By: Carlosthttp://www.ducea.com/2006/06/28/using-iptables-to-block-brute-force-attacks/comment-page-1/#comment-178407 Carlost Thu, 24 Jul 2008 20:08:40 +0000 http://www.ducea.com/2006/06/28/using-iptables-to-block-brute-force-attacks/#comment-178407 Hi, I using mod recent since .... well a lot of time ... to block por 25 in a mail server.I just wanna know if there are some easy way to get the blocked IPs from the list on /proc/net/etc...blahblah/BadGAys...Thanks!!!PD: My list is up to 500 IPs Hi, I using mod recent since …. well a lot of time … to block por 25 in a mail server.

I just wanna know if there are some easy way to get the blocked IPs from the list on /proc/net/etc…blahblah/BadGAys…

Thanks!!!

PD: My list is up to 500 IPs

]]> By: Learning On Demand | 101 links of tutorials, tips, tricks and scripts for iptableshttp://www.ducea.com/2006/06/28/using-iptables-to-block-brute-force-attacks/comment-page-1/#comment-97501 Learning On Demand | 101 links of tutorials, tips, tricks and scripts for iptables Wed, 31 Oct 2007 14:51:27 +0000 http://www.ducea.com/2006/06/28/using-iptables-to-block-brute-force-attacks/#comment-97501 [...] Using iptables to Block Brute Force Attacks [...] [...] Using iptables to Block Brute Force Attacks [...]

]]> By: - Marius -http://www.ducea.com/2006/06/28/using-iptables-to-block-brute-force-attacks/comment-page-1/#comment-73667 - Marius - Wed, 29 Aug 2007 16:33:27 +0000 http://www.ducea.com/2006/06/28/using-iptables-to-block-brute-force-attacks/#comment-73667 Johnny: this basically depends on your setup, and the number of valid connections you want to allow. Still for something like this there might be more appropriate other methods like fail2ban for ex: http://www.ducea.com/2006/07/03/using-fail2ban-to-block-brute-force-attacks/ Johnny: this basically depends on your setup, and the number of valid connections you want to allow. Still for something like this there might be more appropriate other methods like fail2ban for ex:
http://www.ducea.com/2006/07/03/using-fail2ban-to-block-brute-force-attacks/

]]> By: Johnnyhttp://www.ducea.com/2006/06/28/using-iptables-to-block-brute-force-attacks/comment-page-1/#comment-73456 Johnny Wed, 29 Aug 2007 01:11:20 +0000 http://www.ducea.com/2006/06/28/using-iptables-to-block-brute-force-attacks/#comment-73456 Nice, sounds like a quick/dirty way to minimize brutes. Do you think it would work well with ftp and pop3 brute attacks? Trying to visualize how ftp/pop3 protocols work, if there are multiple/numerous tcp connections established even with valid use...which would render ipt_recent useless in these cases... Nice, sounds like a quick/dirty way to minimize brutes. Do you think it would work well with ftp and pop3 brute attacks? Trying to visualize how ftp/pop3 protocols work, if there are multiple/numerous tcp connections established even with valid use…which would render ipt_recent useless in these cases…

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