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* [Sysadmins] странное поведение iptables log
@ 2014-01-22  9:26 Anton Gorlov
  0 siblings, 0 replies; only message in thread
From: Anton Gorlov @ 2014-01-22  9:26 UTC (permalink / raw)
  To: ALT Linux sysadmin discuss

Есть на сервере правило вида
===
-A OUTPUT -o eth1 -m state --state NEW -m recent --update --seconds 60 
--hitcount 150 --name DEFAULT --rdest -j LOG --log-prefix 
"iptables_flud: " --log-uid
-A OUTPUT -o eth1 -m state --state NEW -m recent --update --seconds 60 
--hitcount 150 --name DEFAULT --rdest -j REJECT --reject-with 
icmp-port-unreachable
-A OUTPUT -o eth1 -m state --state NEW -m recent --set --name DEFAULT 
--rdest
===


Всё было ок последний год наверное, а вчера на 1 сервере начало 
твориться странное в логах, а именно
====
iptables_flud: IN= OUT=eth1 SRC=193.106.xx.131 DST=109.207.13.125 
LEN=1420 TOS=0x00 PREC=0x00 TTL=64 ID=50669 DF PROTO=TCP SPT=80 
DPT=19411 WINDOW=54 RES=0x00 ACK URGP=0
iptables_flud: IN= OUT=eth1 SRC=193.106.xx.131 DST=109.207.13.125 
LEN=1420 TOS=0x00 PREC=0x00 TTL=64 ID=28375 DF PROTO=TCP SPT=80 
DPT=22156 WINDOW=54 RES=0x00 ACK URGP=0
iptables_flud: IN= OUT=eth1 SRC=193.106.xx.131 DST=109.207.13.125 
LEN=1420 TOS=0x00 PREC=0x00 TTL=64 ID=33580 DF PROTO=TCP SPT=80 
DPT=22717 WINDOW=54 RES=0x00 ACK URGP=0
iptables_flud: IN= OUT=eth1 SRC=193.106.xx.131 DST=109.207.13.125 
LEN=1420 TOS=0x00 PREC=0x00 TTL=64 ID=32287 DF PROTO=TCP SPT=80 
DPT=21456 WINDOW=54 RES=0x00 ACK URGP=0
===

То есть нету uid/gid того кто породил пакеты.

Как такое может быть?

до этого в логи писалось
iptables_flud: IN= OUT=eth0 SRC=193.106.xx.131 DST=85.202.242.13 LEN=60 
TOS=0x00 PREC=0x00 TTL=64 ID=22828 DF PROTO=TCP SPT=59956 DPT=80 
WINDOW=5840 RES=0x00 SYN URGP=0 UID=1563 GID=10002





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2014-01-22  9:26 [Sysadmins] странное поведение iptables log Anton Gorlov

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