ConfigServer Community Forum

HI guys,

Hoping someone can help here. I have a client server that when I enable UDP FLOOD OUT I get this error after running csf -r:

iptables: Unknown error 18446744073709551615
RETURN udp opt -- in * out * 0.0.0.0/0 -> 0.0.0.0/0 OWNER UID match 25
Error: iptables command [/sbin/iptables -v -A UDPFLOOD -p udp -m owner --uid-owner 25 -j RETURN] failed, at line 1787

I've tried tweaking the settings as outlined in the conf file but nothing seems to change this. In case it helps, this is a Centos 5 machine running the latest 3.2 kernel. Any advice appreciated

That suggests that your custom kernel is missing the iptables "owner" module. You need to recompile it with the OS vendor default modules.

Is this the module you're referring to?
CONFIG_NETFILTER_XT_MATCH_OWNER=y

If so, it's built in to the kernel, as are all other references to "owner"

Hi

same problem here, from this morning

any solutions

work fine for years on this VM