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...s, 0 bytes) pkts bytes target prot opt in out source destination Chain OUTPUT (policy ACCEPT 0 packets, 0 bytes) pkts bytes target prot opt in out source destination # /sbin/iptables -w2 -t raw -I OUTPUT -p udp -d 169.254.25.10 --dport 53 -j NOTRACK root at etiennedebian:~# /sbin/iptables -t raw -L -n -v Chain PREROUTING (policy ACCEPT 0 packets, 0 bytes) pkts bytes target prot opt in out source destination Chain OUTPUT (policy ACCEPT 0 packets, 0 bytes) pkts bytes target prot opt in out source...

https://bugzilla.netfilter.org/show_bug.cgi?id=1065 Bug ID: 1065 Summary: NOTRACK is not supported in nft Product: nftables Version: unspecified Hardware: x86_64 OS: All Status: NEW Severity: enhancement Priority: P5 Component: nft Assignee: pablo at netfilter.org Reporte...

https://bugzilla.netfilter.org/show_bug.cgi?id=1213 Bug ID: 1213 Summary: Nft stateless NAT (NOTRACK) Product: nftables Version: unspecified Hardware: All OS: Ubuntu Status: NEW Severity: critical Priority: P5 Component: nft Assignee: pablo at netfilter.org Reporter: mskim128 at gmail.com...

https://bugzilla.netfilter.org/show_bug.cgi?id=1410 Bug ID: 1410 Summary: STATELESS, rules with notrack into a map Product: nftables Version: unspecified Hardware: x86_64 OS: Debian GNU/Linux Status: NEW Severity: enhancement Priority: P5 Component: nft Assignee: pablo at netfilter.org Reporte...

Hi, I would like to see this addressed. I found more information on the issue at https://kb.isc.org/article/AA-01183/0/Linux-connection-tracking-and-DNS.html Is there a firewalld solution to this issue? On 04/11/2017 11:05 AM, Chris Adams wrote: > One additional DNS server note: you should disable firewalld for any DNS > server, caching or authoritative. If you need firewalling, use

...???????????????????????????? ????????????http???web??????iptables????????????? 1?????????? 2????? iptables ip_conntrack table full dropping packet OK??? ip_conntrack ?????????????????????????????????tcp????????????tcp??????ip??????????iptables???????????? ??????? ip_conntrack ?????????? raw ???? notrack ??????????????????? ip_conntrack ??iptables ???????? ?????? notrack ????????????????????http???dns??? ???????????????????80??notrack???????????????????????????????????????? ???? -- Configure bugmail: https://bugzilla.netfilter.org/userprefs.cgi?tab=email ------- You are receiving this mail beca...

...wall, use the NFACCT target. See shorewall-accounting(5) for details. The ''shorewall show nfacct'' command is a thin wrapper around the ''nfacct list'' command and displays all objects. 3) With the addition of the CT action to the /etc/shorewall[6]/notrack file, the name of the file does not accurately reflect the file''s purpose. In this release, the name of the file has been changed to ''conntrack''. The tarball installers will install ''conntrack'' along side of an existing '...

...Version: 1.0.x Hardware: x86_64 OS: Debian GNU/Linux Status: NEW Severity: normal Priority: P5 Component: kernel Assignee: pablo at netfilter.org Reporter: tsv1991 at gmail.com Root case: I want to do the NOTRACK in the PREROUTING chain for traffic that has a "daddr" route pointing to a specific oif. What I do: "nft add rule inet notracks PREROUTING fib daddr oif br999 counter notrack" The issue: nftables always checks only main routing table, though the iif for traffic is slave for...

...t --direct --add-rule ipv4 filter INPUT 0 -m conntrack --ctstate UNTRACKED -j ACCEPT firewall-cmd --permanent --direct --add-rule ipv4 filter FORWARD 0 -m conntrack --ctstate UNTRACKED -j ACCEPT firewall-cmd --permanent --direct --add-rule ipv4 raw PREROUTING 100 -p udp -m udp --dport 53 -j CT --notrack firewall-cmd --permanent --direct --add-rule ipv4 raw PREROUTING 100 -p udp -m udp --sport 53 -j CT --notrack firewall-cmd --permanent --direct --add-rule ipv4 raw OUTPUT 100 -p udp -m udp --dport 53 -j CT --notrack firewall-cmd --permanent --direct --add-rule ipv4 raw OUTPUT 100 -p udp -m udp -...

...EL5-based systems. This release includes a patch from Tuomo Soini that corrects the problem. 8) The ''debug'' keyword is no longer ignored by the ''try'', ''stop'' and ''clear'' command executors. 9) Using the ''NOTRACK'' action in the stoppedrules file was previously broken when $FW was specified in the SOURCE column. In such cases, the generated rule was being placed incorrectly in the filter table rather than in the raw table which resulted in a failure of the ''stop''...

...EL5-based systems. This release includes a patch from Tuomo Soini that corrects the problem. 8) The ''debug'' keyword is no longer ignored by the ''try'', ''stop'' and ''clear'' command executors. 9) Using the ''NOTRACK'' action in the stoppedrules file was previously broken when $FW was specified in the SOURCE column. In such cases, the generated rule was being placed incorrectly in the filter table rather than in the raw table which resulted in a failure of the ''stop''...

....html#conntrack_filling_tables%3C/blockquote%3E%3C/div%3E> suggested My iptables rules are ------------------------------------------------------------------------ #that's what the mentioned article suggested..I'm not sure it's working! *raw -A PREROUTING -p tcp -m tcp --dport 80 -j NOTRACK COMMIT *filter -A INPUT -i lo -j ACCEPT -A INPUT -p icmp --icmp-type any -j ACCEPT #no tracking needed for this -A INPUT -p tcp --dport 80 -j ACCEPT #that would be another question but I can't get rid of this while using ssh tunneling -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT #ss...

...access the domU from the dom0 (for example using ssh or http). The access from domU into dom0 works, too. But i can not get a working NAT setup to route the traffic from domU into the internet. I tried a few variants, switching of tx checks on the ethernet device, disabling connection tracking via NOTRACK target of iptables etc. IP forwarding is enabled in the kernel and via echo 1 /proc/... all no luck. So i ask you is there somewhere a document detailing a debbuging of such an behavour or something like that? I looked around for quite a while and tried some howtos, but nothing could help to get t...

Hi, Wrote a couple articles on OpenSSH and on running your Git server in a CentOS 7 environment https://notrackers.com/the-command-line/openssh-primer/ and https://notrackers.com/the-command-line/setting-up-your-own-git-server/ And the domain name is honest, there no trackers on that blog. None. (that blog is actually for a WordPress project not ready for general use but it seemed like a good place for...

...UG 0 0 0 eth1 connections coming from the lan are all ok and the nat works well, but the ones coming from the domUs cannot transmit any data. the domUs are on the same subnet of dom0 (192.168.0.0/24), gw and ns are ok i use iptables with MASQUERADE for nat and tried the NOTRACK solution but it''s not working for me from domUs i can ping the outside if i use an ip as parameter for ping, and when dumping traffic on dom0 i see some ACKs ..looks like the connection is established, but no data comes back # telnet 66.249.93.104 80 Trying 66.249.93.104... Connected to 6...

Hello List! I got a small (50mbits or so) application layer ddos attack against a few name servers (thousands of IPs sending lots of bogus A record requests - weird) - one of the name servers was behind a shorewall firewall. That firewall was running a 2.6.18-194.11.1.el5 kernel and shorewall-4.4.11.1-1. I noticed that the shorewall host had ksoftirqd using 100% of the CPU during the

...hing similar. They don't really harm anything. but I doubt the intention really was to include them. tar tf conntrack-tools-1.4.2.tar.bz2 | grep conntrackd.conf conntrack-tools-1.4.2/doc/stats/conntrackd.conf conntrack-tools-1.4.2/doc/sync/ftfw/conntrackd.conf conntrack-tools-1.4.2/doc/sync/notrack/conntrackd.conf conntrack-tools-1.4.2/doc/sync/notrack/conntrackd.conf.orig conntrack-tools-1.4.2/doc/sync/alarm/conntrackd.conf conntrack-tools-1.4.2/doc/sync/alarm/conntrackd.conf.orig conntrack-tools-1.4.2/doc/helper/conntrackd.conf conntrack-tools-1.4.2/doc/helper/conntrackd.conf.orig The &quo...

I have a bunch of servers, where I''ve deployed shorewall-lite. For us is very useful to have a centralized repository of the firewall rules deployed in our servers. One of this servers is pretty busy, handling lots of connections. In that server I''m getting from time to time this message: ip_conntrack: table full If I where working in a custom made iptables firewall I will

...- Number Generator (a.k.a. numgen). - Routing (a.k.a. rt). - Range. - Inverted set lookups. - Inverted dynamic set updates (ie. rule mismatch on full sets). - Packet quota. - Hash. - Forward Information Base lookups (a.k.a. fib). - Reference to stateful objects (requires kernel 4.10-rc). - Notrack. * Allow to add userdata to sets. * Support for stateful objects, including quota and counter (requires kernel 4.10-rc). * Support for layer 4 pseudoheader fields checksum updates (requires kernel 4.10-rc). ... and fixes. You can download this library from: http://www.netfilter.org/proj...

...onntrack_ipv6,nf_conntrack_pptp,nf_conntrack_sane,nf_conntrack_snmp,nf_conntrack_tftp And I don''t seem to have any issue loading the same connection tracking helper that Shorewall does when checking for h323 support. # iptables -t raw -N tmp_chain # iptables -t raw -A tmp_chain -j CT --notrack ; echo $? 0 # iptables -t raw -A tmp_chain -p udp --dport 1719 -j CT --helper RAS ; echo $? 0 # iptables -t raw -F tmp_chain # iptables -t raw -X tmp_chain I''m not sure what else to check now. Am I doing something wrong? Or is there a bug with the h323 helper stuff in Shorewall? Reg...