search for: tarpits

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 try to use it, I get the following reponse: # iptables

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:

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:

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

... 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 studies (e.g., for educational purposes). Cxnet

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

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 imq seem

There is the mail_max_userip_connections setting, which helps for dealing with number of connections at any given time, but I'm looking for something that will help deal with users who configure their 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

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 attac...

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, these delays are only inserted

hi ya On Tue, Jul 28, 2015 at 11:35:31PM -0400, Chris Ross wrote: > > > On Jul 28, 2015, at 21:52 , Steffan Cline <steffan at hldns.com> wrote: > > > > Ok, I think I have come a little further. > > > > When dovecot stops accepting connections, I checked netstat and found this: > > > > [root at hosting1 ~]# netstat -an | grep 993 > >

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

Hi everyone, Xtables-addons 1.5.4 has been released; highlights of this release are the import, cleanup/bugfixing the "condition" and "ipp2p" matches and additionally extending the "IPMARK" by IPv6. I hope people don''t mind, but I have not heard back so far, so I take it it''s ok. LOGMARK (for analyzing packet marks and connection states) now

About two weeks ago i was whining about an inode that got lost, now i'm going to whine more about strange things happening here. A matroxfb just oopsed on me (thats not strange), the machine got unusuable, so i logged in from another and got the idea to touch /forcefsck. Upon reboot, fsck said that some inodes are in use but have dtime set and that some files are illegal sockets. Now this

I have just put R-0.62.3.tgz and R-0.62.2-0.62.3.diff.gz into 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