search for: nf_conntrack

Hello everyone, When I try to start firewalld in CentOS-8 it refuses with this in the /var/log/firewalld, any suggestions? 2019-12-11 19:11:25 WARNING: ipset not usable, disabling ipset usage in firewall. 2019-12-11 19:11:25 ERROR: No icmptypes found. 2019-12-11 19:11:25 ERROR: Failed to load nf_conntrack module: modprobe: ERROR: could not find module by name='nf_conntrack' modprobe: ERROR: could not insert 'nf_conntrack': Unknown symbol in module, or unknown parameter (see dmesg) modprobe: ERROR: Error running install command for nf_conntrack modprobe: ERROR: could not insert 'n...

https://bugzilla.netfilter.org/bugzilla/show_bug.cgi?id=474 Summary: nf_conntrack marks all packets as INVALID on sparc64 (probably endianness bug) Product: netfilter/iptables Version: linux-2.6.x Platform: All OS/Version: All Status: NEW Severity: normal Priority: P2 Component:...

http://bugzilla.netfilter.org/show_bug.cgi?id=726 Summary: Oops in nf_conntrack. Product: netfilter/iptables Version: linux-2.6.x Platform: x86_64 OS/Version: Ubuntu Status: NEW Severity: critical Priority: P5 Component: ip_conntrack AssignedTo: netfilter-buglog at lists.netfilter.org...

...n: 4.2.9 Iptables Version: v1.4.3.2 Kernel Version: 2.6.30-rc8 OS: Centos 4.7 X86_64 I see the following on std-output and /var/log/messages Jun 4 22:17:27 firewall shorewall: Compiling... Jun 4 22:17:29 firewall kernel: Netfilter messages via NETLINK v0.30. Jun 4 22:17:29 firewall kernel: nf_conntrack version 0.5.0 (16384 buckets, 65536 max) Jun 4 22:17:29 firewall kernel: CONFIG_NF_CT_ACCT is deprecated and will be removed soon. Please use Jun 4 22:17:29 firewall kernel: nf_conntrack.acct=1 kernel paramater, acct=1 nf_conntrack module option or Jun 4 22:17:29 firewall kernel: sysctl net.n...

Hi, On my CentOS-8 box firewalld will not start. It appears to be because the nf_conntrack module cannot be loaded. I saw on the net that a similar issue occurred on C7, but I couldn't find the solution. What is going wrong? Any ideas? Adrian -- Adri P. van Bloois "Elegance is not a dispensable luxury but a factor that decides between success and failure." Eds...

...ore importantly for the current stable package: http://xenbits.xen.org/hg/xen-4.0-testing.hg/rev/af7110f4f803 Because the state module is activated, conntrack kicks in, and eventually a high amount of traffic will cause the following to happen on dom0: Jun 9 09:24:45 crux kernel: [27998.532343] nf_conntrack: table full, dropping packet. Jun 9 09:24:54 crux kernel: [28007.820634] nf_conntrack: table full, dropping packet. Jun 9 09:24:54 crux kernel: [28007.820651] nf_conntrack: table full, dropping packet. That could almost qualify as an excessive susceptibility to DoS, i.e. a security issue. Pleas...

https://bugzilla.netfilter.org/show_bug.cgi?id=792 Phil Oester <netfilter at linuxace.com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|ASSIGNED |RESOLVED CC| |netfilter at linuxace.com Resolution|

https://bugzilla.netfilter.org/bugzilla/show_bug.cgi?id=474 jan.oravec@6com.sk changed: What |Removed |Added ---------------------------------------------------------------------------- OS/Version|All |Gentoo Platform|All |sparc64 ------- Additional Comments From jan.oravec@6com.sk

...^^^^^^^ /etc/nftables.conf:395:8-15: Error: Could not process rule: No such file or directory chain postnats { type nat hook postrouting priority 100; ^^^^^^^^ $ lsmod |grep nft nft_log 16384 0 nft_limit 16384 0 nft_ct 20480 0 nf_conntrack 163840 1 nft_ct nf_tables 163840 4 nft_ct,nft_log,nft_limit,nf_tables_set Edit: table inet nats { -> table ip nats { $ sudo /etc/nftables.conf $ lsmod |grep nft nft_chain_nat 16384 2 nf_nat 53248 1 nft_chain_nat nft_log 16384...

...ly causes fs damages). Kernels reproducing the issue (IOW, all): kernel-3.10.0-1062.18.1.el7.x86_64 kernel-3.10.0-1127.el7.x86_64 kernel-3.10.0-1127.8.2.el7.x86_64 kernel-3.10.0-1127.13.1.el7.x86_64 Nothing jumps to my eyes looking at /var/log/messages but this, many occurrences: kernel: nf_conntrack: falling back to vmalloc. I searched the Internet for it, and the few results I found were not bringing any solution and were quite pessimistic WRT to memory freeing, am I wrong? Regards, -- wwp https://useplaintext.email/ -------------- next part -------------- A non-text attachment was scrubbe...

...pu state XENBUS: Unable to read cpu state XENBUS: Unable to read cpu state XENBUS: Unable to read cpu state peth0: no IPv6 routers present eth0: no IPv6 routers present device vif1.0 entered promiscuous mode eth0: port 2(vif1.0) entering forwarding state ip_tables: (C) 2000-2006 Netfilter Core Team nf_conntrack version 0.5.0 (8024 buckets, 32096 max) CONFIG_NF_CT_ACCT is deprecated and will be removed soon. Please use nf_conntrack.acct=1 kernel parameter, acct=1 nf_conntrack module option or sysctl net.netfilter.nf_conntrack_acct=1 to enable it. physdev match: using --physdev-out in the OUTPUT, FORWARD an...

https://bugzilla.netfilter.org/bugzilla/show_bug.cgi?id=508 ------- Additional Comments From kaber@trash.net 2006-09-14 13:18 MET ------- Did you enable nf_conntrack and the ipv6 connection tracking module? -- Configure bugmail: https://bugzilla.netfilter.org/bugzilla/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You reported the bug, or are watching the reporter.

...3592 0 xt_mac 1792 19 ipt_LOG 5504 2 xt_limit 2304 2 xt_multiport 3200 4 xt_state 2176 3 iptable_mangle 2304 1 iptable_nat 6020 1 nf_nat 13996 2 ipt_MASQUERADE,iptable_nat nf_conntrack_ipv4 12940 5 iptable_nat nf_conntrack 46584 5 ipt_MASQUERADE,xt_state,iptable_nat,nf_nat,nf_conntrack_ipv4 nfnetlink 4888 3 nf_nat,nf_conntrack_ipv4,nf_conntrack iptable_filter 2436 1 ip_tables 9560 3 iptable_mangle,iptable_nat,iptable_filter...

https://bugzilla.netfilter.org/show_bug.cgi?id=850 Summary: DNAT applied even after deleting the IP Tables DNAT Rule Product: iptables Version: 1.4.x Platform: All OS/Version: All Status: NEW Severity: major Priority: P5 Component: iptables AssignedTo: netfilter-buglog at

...it doesn't load. For the sysctl if I run sysctl -p then it changes /etc/sysctl.conf net.ipv4.netfilter.ip_conntrack_max = 1048576 /etc/modprobe.conf options ip_conntrack hashsize=131072 after reboot results cat /proc/sys/net/ipv4/netfilter/ip_conntrack_max 65536 cat /sys/module/nf_conntrack/parameters/hashsize 16384 expected results cat /proc/sys/net/ipv4/netfilter/ip_conntrack_max 1048576 cat /sys/module/nf_conntrack/parameters/hashsize 131072 Fred -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean.

...t;c10b2d59>] ? do_sync_read+0x0/0x107 [154590.284382] [<c10b37d0>] ? vfs_read+0x7b/0xd3 [154590.284386] [<c10b386e>] ? sys_pread64+0x46/0x5c [154590.284392] [<c10030fb>] ? sysenter_do_call+0x12/0x28 [173198.678338] ip_tables: (C) 2000-2006 Netfilter Core Team [173200.210462] nf_conntrack version 0.5.0 (16384 buckets, 65536 max) [173200.211521] CONFIG_NF_CT_ACCT is deprecated and will be removed soon. Please use [173200.211526] nf_conntrack.acct=1 kernel parameter, acct=1 nf_conntrack module option or [173200.211529] sysctl net.netfilter.nf_conntrack_acct=1 to enable it. This is b...

...here is nothing in logs. On serial console I can see messages as below. On other SPARC Enterprise T1000 server there is exactly the same effect. System: SUNW,Sun-Fire-T1000 Linux mail 3.2.0-4-sparc64-smp #1 SMP Debian 3.2.63-2+deb7u2 sparc64 GNU/Linux ip_tables: (C) 2000-2006 Netfilter Core Team nf_conntrack version 0.5.0 (16384 buckets, 65536 max) [90297.014493] BUG: soft lockup - CPU#9 stuck for 22s! [iptables:9251] [90297.014690] Modules linked in: xt_conntrack xt_multiport nf_conntrack_ipv4 nf_defrag_ipv4 xt_tcpudp xt_state nf_conntrack iptable_filter ip_tables x_tables nfsd nfs nfs_acl auth_rpcg...

...ul 2 21:42:59 bkp010 kernel: [ 668.547147] ------------[ cut here ]------------ Jul 2 21:42:59 bkp010 kernel: [ 668.547268] WARNING: at fs/btrfs/backref.c:903 find_parent_nodes+0x616/0x815 [btrfs]() Jul 2 21:42:59 bkp010 kernel: [ 668.547414] Modules linked in: veth ipt_MASQUERADE iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack ip_tables x_tables cpufreq_ondemand cpufreq_conservative cpufreq_powersave cpufreq_stats bridge stp llc ipv6 btrfs xor raid6_pq zlib_deflate loop acpi_cpufreq mperf freq_table intel_powerclamp kvm_intel kvm crc32_pclmul microcode ehci_pci ehci_hcd...

On Mon, Jun 29, 2020 at 12:47 PM wwp <subscript at free.fr> wrote: > > Nothing jumps to my eyes looking at /var/log/messages but this, many > occurrences: > kernel: nf_conntrack: falling back to vmalloc. > nf_conntrack is only involved if you are doing some form of NAT routing on this system and/or fairly complex iptables kind of rules.... you mentioned two different network interfaces, one wired, one wireless, how are you using these, what sort of routing between the...

...7,138(6) etc. No change. The ip_modules loaded are listed below: martin at radio:~$ lsmod | grep -E "nf_|xt_|ip" ip6t_REJECT 16384 1 nf_reject_ipv6 16384 1 ip6t_REJECT nf_log_ipv6 16384 10 xt_hl 16384 22 ip6t_rt 16384 3 nf_conntrack_ipv6 20480 11 nf_defrag_ipv6 36864 1 nf_conntrack_ipv6 ipt_REJECT 16384 1 nf_reject_ipv4 16384 1 ipt_REJECT xt_comment 16384 4 nf_log_ipv4 16384 10 nf_log_common 16384 2 nf_log_ipv4,nf_log_ipv6 xt_LOG 16384 20...