similar to: ip_conntrack: table full, dropping packet.

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

https://bugzilla.netfilter.org/show_bug.cgi?id=830 Summary: ??iptables????????? Product: iptables Version: unspecified Platform: All OS/Version: RedHat Linux Status: NEW Severity: major Priority: P5 Component: iptables AssignedTo: netfilter-buglog at lists.netfilter.org ReportedBy: higkoohk

Hi all, i need advice how can i limit ip_conntrack per IP. clients of network that i support often uses torrent , DC++ , eMule clients and i have lost packages because they open too many ports. i have traffic control limits but this obviously isn''t enough Any advance how to prevent server from this kind problems will be welcome. Best regards Emil

Hi, I know that this is a known problem but I don''t know the solution. I have a linux server with iptables, kernel 2.4.17. Now in logs appear (Debian): kern.log: Mar 1 23:12:55 cpie kernel: ip_conntrack: table full, dropping packet. Mar 1 23:13:56 cpie last message repeated 10 times Mar 1 23:13:59 cpie last message repeated 3 times Mar 1 23:14:10 cpie kernel: NET: 1 messages

Hi, my ip_conntrack table is filling up and now my server is dropping packets. I'm running CentOS release 4.4 (Final) on a fairly busy webserver. The table is full of various connections, including a lot of "ESTABLISHED" tcp connections from my webserver (the src is my webserver ip), and some other random connections to my webserver, and many "ASSURED" connections. So why

https://bugzilla.netfilter.org/show_bug.cgi?id=1422 Bug ID: 1422 Summary: iptables-nft fails to check / delete rules in raw table Product: iptables Version: 1.6.x Hardware: x86_64 OS: Debian GNU/Linux Status: NEW Severity: major Priority: P5 Component: iptables

i just got a ''ip_conntrack: table full, dropping packet'' because a p2p-application ran amok. i''ve killed the process but /proc/net/ip_conntrack still got more than 7000 (now stale) entries of 8184 max. since the table is now after ~70 minutes down to 6995 entries, i wonder if i can flush this table manually. the entries in there look like tcp 6 155674

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

I understand what you're saying now. While I have absolutely no proof of this, I have to believe that it's something they've solved. I've got several production systems (since early December of last year) using the type of cluster that I'm talking about, and I've yet to hear of any issues that could be related to this. I also did extensive testing both in the lab and at

https://bugzilla.netfilter.org/bugzilla/show_bug.cgi?id=511 Summary: Premature ip_conntrack timer expiry on 3+ window size advertisements Product: netfilter/iptables Version: linux-2.6.x Platform: All OS/Version: All Status: NEW Severity: minor Priority: P2 Component: ip_conntrack

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

Hi, I'm currently setting up a local FTP server, to receive disk images sent with G4L (Ghost4Linux). This server has been running Slackware Linux before, and the Vsftpd setup was relatively simple. With CentOS things seem to be slightly different, so I'm currently trying to work things out. For the moment, two things seem to be creating problems, the simple iptables firewall and

Hi, I got a problem with iproute and shorewall but I don''t know where the real problem is yet, perhaps someone can shed any light on this one. What we currently do is route all traffic coming from a specific host through our second isp''s nat router. This is done via SNAT on our own router. /etc/shorewall/masq: eth2 $INTERNALHOSTA 192.168.0.142 We now

http://bugzilla.netfilter.org/show_bug.cgi?id=792 Summary: ip_conntrack keep updating incorrect entry in conntrack table after default routing changed Product: netfilter/iptables Version: linux-2.6.x Platform: x86_64 OS/Version: Fedora Status: NEW Severity: minor Priority: P5 Component:

Hello! Has anyone seen this netfilter kernel crash? Images from the console of the crashed firewall: http://pasik.reaktio.net/centos5-kernel-crash/ Firewall is HP DL360 G4 server running CentOS 5.x 32 bit. I've seen this firewall crashing multiple times, but I only started investigating it lately.. It has happened using CentOS 5.0, 5.1 and now also with 5.2. I'm not sure if it was

Hello, I'm following instructions in http://www.austintek.com/LVS/LVS-HOWTO/HOWTO/LVS-HOWTO.LVS-DR.html#route_on_non_ip_interface to allow my xen guest real hosts to serve virtual IP's behind LVS without having to allocate real public IP addresses for each such xen guest. I have eth1 connected via a "back-end" switch to the eth1/xenbr1 of the xen host and the other physical

https://bugzilla.netfilter.org/bugzilla/show_bug.cgi?id=498 cfilin@intermedia.net changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |chip@innovates.com -- Configure bugmail: https://bugzilla.netfilter.org/bugzilla/userprefs.cgi?tab=email ------- You are

I''ve been having all sorts of problems the last few days with my connection slowing down and then stopping working. Rebooting the router box always fixes it for a while. When I couldn''t hit any pages this morning, and couldn''t even ssh into the router, I dug around a little. When I did a dmesg on the router, there were a bunch of errors saying: ip_conntrack: table full,

https://bugzilla.netfilter.org/bugzilla/show_bug.cgi?id=549 ------- Additional Comments From kaber@trash.net 2007-02-25 22:58 MET ------- > When ip_conntrack_pptp / ip_nat_pptp modules are loaded in addition to ftp ones, the oops happens in one of the latter two modules. I'm not sure I understand. ip_conntrack shouldn't be unloadable while these modules are still loaded, so how

I've got small numbers of connections moving through a load balancer configured in NAT mode. So I've got an iptables table called "nat", which has in it a line "-A POSTROUTING -o eth0 -j MASQUERADE" (lan connect is eth0, private lan inside the cluster is eth1). The load balancer is working; connections made to the virtual ip on that host do get routed to one of the