Re: iptables crashes server?

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i checked the memory usage a little more in detail:

the free ram is decreasing.
the active use of ram is increasing.

ergo, something is filling up my ram. i run apache, irc-proxy, snort and argus besides iptables.

for me, there seems something buggy in the kernelspace of iptables.

but, if i am the only one with this problem, it's maybe not.

can someone tell me, which kernel and which iptables version is working?

regards
moritz

Mohamed Eldesoky wrote:
Can you check the memory ??
May be it is a faulty RAM

On Apr 4, 2005 10:16 AM, Moritz Gartenmeister <moritz@xxxxxxxxxxxxxxxx> wrote:

hi all

i'm running linux 2.6.11.3 and iptables 1.3.1 with pom 20050321. i patched the kernel with ipp2p,
and layer-7 patch.

the server is running as a bridge and is working absolutly fine. after a while (there is no specific
time limit) the server crashes. the server is no more able to allocate new memory and even swapping
doesn't help. in this state i am unable to log in, i have to push the power button.

i don't see heavy traffic before a crash and i don't see any flooding. is there a known memory leak
problem?

i checked /proc/sys/net/ipv4/netfilter/ip_conntrack_count this number is in the range of 2'000 - 5'000.
i checked /proc/slabinfo <active_objs> is more or less similiar to ip_conntrack_count, <num_objs> is
the maximum of ip_contrack_count.
i also was checking /proc/meminfo and there was no steady increase.

/var/log/messages shows no warning.
/var/log/syslog shows nothing
icmp is working.
imap is probably working (someone told me).
http is not working.
pop over ssl is working (sometimes).

does anyone had/have the same experience? or does anyone have some hints for further steps?

hardware: dell poweredge 2560 with 2gybte ram, 2 xenon dual cpus.

i was running the same setup wiht an older kernel 2.6.7/10 without much troubles.

regards
moritz







-- Uplink student association Moritz Gartenmeister Bülachstrasse 1 F 8057 Zürich Switzerland



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