search for: tarpit

Hi, I''ve been working the past 8 hrs combatting DDoS attacks on websites and dedicated servers I host for clients. They''re hitting one specific IP address, but coming from thousands of external IP addresses. I use: shorewall-4.0.10-3.noarch How can I tackle this? I''ve blocked many subnets in the blacklist file but it''s made very little difference. If

Has anyone been successful at using the TARPIT target in iptables under CentOS 4? I am using CentOS 4.3, fully updated with iptables-1.2.11-3.1.RHEL4 and kernel-2.6.9-34.107.plus.c4 Doing a locate on TARPIT returns: # locate TARPIT /lib/iptables/libipt_TARPIT.so This makes me think that the TARPIT target would be valid, however when I tr...

https://bugzilla.netfilter.org/show_bug.cgi?id=1097 Bug ID: 1097 Summary: TARPIT function does not work in ip6tables Product: netfilter/iptables Version: unspecified Hardware: x86_64 OS: Ubuntu Status: NEW Severity: normal Priority: P5 Component: ip6_tables (kernel) Assignee: netf...

https://bugzilla.netfilter.org/cgi-bin/bugzilla/show_bug.cgi?id=78 Summary: -m psd -j TARPIT returns all ports open from nmap Product: iptables userspace Version: unspecified Platform: i386 OS/Version: RedHat Linux Status: NEW Severity: normal Priority: P2 Component: unknown AssignedTo: laforge@netfilt...

https://bugzilla.netfilter.org/cgi-bin/bugzilla/show_bug.cgi?id=78 ------- Additional Comments From tools@die.net 2003-04-17 15:47 ------- Showing any ports open that are sent to it is the normal function of TARPIT target. The psd match will start routing all ports to it after it decides that an IP is portscanning, so this is the expected behavior. That being said, the psd match won't route any TCP ACK packets to the specified target. It seems to be trying to do this to keep from affecting outgoing con...

... Hello! I completed a simple userspace tarpit script: http://www.radlinux.org/connexion/browser/branches/0.4.4/lib/cxnet It is not a production solution, but an example of cxnet usage. Whilst not as fast as libnfnetlink and kernel netfilter, cxnet is extremely simple and can be used for rapid net-apps development or in GNU/Linux network st...

Hi all, ?Is there any app like denyhosts[1] but intended for MySQLd service? We have a mysql ports (3306) opened for remote connections, and obviously the /var/db/mysql/machine_name.log is full of these kind of entries: ........... 936012 Connect Access denied for user 'user'@'85.19.95.10' (using password: YES) 936013 Connect Access denied for user

On 09/15/2018 10:41 AM, Aki Tuomi wrote: > Point of sending the success ones is to maintain whitelist as well as > blacklist so you know which ones you should not tarpit anymore. We > know it does scale as we have very large deployments using the whole > three request per login model. > > "Success" in a proxy which is not it self authenticating is only whether it know where to proxy the requested username to. I'm not sure whether this wou...

Hi, I am trying to install some additional iptables modules on a CentOS 5 Box (imq, tarpit, geoip). Can anyone recommend a version of patch-o-matic-ng that works well with the CentOS 5 kernel sources (2.6.18-8.1.4)? The most current version (patch-o-matic-ng-20070521.tar.bz2) does not compile. With patch-o-matic-ng-20061128.tar.bz2 I could at least get tarpit working but geoip and im...

...mail clients to connect too frequently. For example, I've seen users who configured their clients to check (IMAP) mail every 3 seconds. This is far too frequent and puts unnecessary load on the server. Even once per minute seems excessive to me. It would be really great if there were a way to tarpit those users to slow them down, or send them an imap message saying they are connecting to often and connections have been disabled for the next 5 minutes or something. Micah ps - what happens to a user when they hit mail_mx_userip_connections? Further connections are just denied, or dropped?

On 11/27/2017 02:02 PM, m.roth at 5-cent.us wrote: > Pete Biggs wrote: >> - don't run ssh on 22, use a different port. > I consider that pointless security-through-obscurity. Security through obscurity it may be, but it isn't pointless. Tarpits are in a similar class; they don't help with security in the absolute sense, but they slow the attacker down, and that might be enough to prevent the attack from continuing.? (that is, put a tarpit on port 22 and run the real ssh elsewhere!)? Any and all stumblingblocks you can put in the...

...Lamar Owen wrote: > On 11/27/2017 02:02 PM, m.roth at 5-cent.us wrote: >> Pete Biggs wrote: >>> - don't run ssh on 22, use a different port. >> I consider that pointless security-through-obscurity. > Security through obscurity it may be, but it isn't pointless. Tarpits are in a similar class; they don't help with security in the absolute sense, but they slow the attacker down, and that might be enough to prevent the attack from continuing.? (that is, put a tarpit on port 22 and run the real ssh elsewhere!)? Any and all stumblingblocks you can put in the atta...

Pete Biggs wrote: > On Mon, 2017-11-27 at 12:10 -0500, Jerry Geis wrote: >> hi All, >> >> I happened to login to one of my servers today and saw 96000 failed >> login attempts. shown below is the address its coming from. I added it to my >> firewall to drop. >> >> Failed password for root from 123.183.209.135 port 14299 ssh2 >> >> FYI -

Nick Edwards writes: > I thought Timo once said dovecot had tarpitting, its useless if it is > there, and if it is, it needs user configurable timings, or maybe its > one of those things thats been in the gunna happen list > for a long time, like other stuff If I remember correctly, I think this was the "auth_failure_delay" feature. However,...

...u might have a problem, that requires more info ... if you do NOT receognized those IP#, don't worry, except that you do need to add imaps and pop3s into /etc/hosts.allow to allow legit connectons and all other script kiddies should be dropped. similarly, your firewall should be configured to tarpit un-authorized new tcp connections to port 993 > > This told me it wasn???t too many connections causing dovecot to be unresponsive. So then I tried via telnet. > > > > Dovecot seems to accept connections but then just sits there and does nothing. I used the appropriate commands...

Hi Folks, Is there a generally accepted Asterisk bible for current versions? I poked around the forums and there didn't seem to be a real consensus, and there are lots of options out there. I need something that focuses on Asterisk dialplans and config files, not a linux primer. I'm looking for dead-tree rather than online documentation. Thanks, Tim

Hello, Several of us have been using Wine to play Warhammer Online (http://appdb.winehq.org/objectManager.php?sClass=version&iId=13139&iTestingId=29914). Until recently it worked fine with 1.1.2 on Ubuntu (Hardy). Then the games patcher was updated and it no longer runs instead it hangs without returning when first run. This problem seems specific to Ubuntu as it still works for

...ons are 2.6.18--2.6.25;; not all p-o-matic patches can be transformed.] A big benefit of the compat layer of xtables-addons is that the actual modules remain largely free of #ifdef hackery and hence make maintenance a lot easier. Current list of bundled extensions. CHAOS DELUDE IPMARK LOGMARK TARPIT condition geoip ipp2p portscan -- To unsubscribe from this list: send the line "unsubscribe netfilter" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html

...onal workstation. Is there some chance that what I'm expiriencing is only a software error? If so, I might compile my next kernel with jbd debugging on. (currently 2.4.17pre8) -- Jure Pecar Unfortunatly, SMTP email is anything but a small set of problems. Quite the opposite: it's a tarpit of bureaucratic standards committees, arrogant implementors, impatient administrators and whiny end-users.

...the FTP area at Auckland. As usual, do not fetch it from there unless absolutely urgent, because of the NZ Internet billing system. The files should get mirrored to the main CRAN site in Vienna tonight and the rest of CRAN within days. [And, may I add, the NZ connection is slower than a sloth in a tarpit. I had turnaround times of up to at least 15s while packaging the release!] This is a patch release, mainly fixing bugs, but with a few new features too. Most likely, this will be the last of the 0.62 series, 0.63 is getting pretty stable now. Here's the top of the CHANGES file: CHANGES...