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 From : Sergey Gurinovich                    2:5020/1653    14 Apr 2003  16:22:02
 To : All
 Subject : Iptables log
 -------------------------------------------------------------------------------- 
 
    -=> Привет /All/ <=-
 сегодня прислали счет на использование интернета и общий трафик в нем на 2Gb
 меньше подсчитанного в этот же промежуток времени с помощью iptables. немогли бы
 Вы мне подсказать кто ошибся?
 
 зы счет пришел на ~1600Mb, провайдер - "точка ру", линукс mandrake 8.2 со
 стандартным ядром и iptables
 
 ззы в прошлий раз статистику естетственно сбрасывал и ее явно меньше 2Gb
 
 зззы ответ желательно продублировать нетмайлом
 
 правила фаирвола:
 
 === Hачало firewall ===
 iptables -F
 iptables -t nat -F
 
 iptables -P INPUT DROP
 iptables -P OUTPUT ACCEPT
 iptables -P FORWARD DROP
 iptables -A INPUT -p TCP --dport 22 -j ULOG --ulog-prefix "SSH connection
 attempt: "
 iptables -A FORWARD -p TCP --dport 22 -j ULOG --ulog-prefix "SSH connection
 attempt: "
 
 iptables -A INPUT -i eth0 -p tcp -m multiport --port 22,25,53,80,110,10000 -j
 ACCEPT
 
 #iptables -A FORWARD -o eth0 -p tcp -m multiport --dport 22,25,53,80,110,10000
 -j ACCEPT
 
 iptables -A FORWARD -i eth0 -d 192.168.23.3 -s 62.118.167.0/24 -j ACCEPT
 iptables -A FORWARD -o eth0 -s 192.168.23.3  -d 62.118.167.0/24 -j ACCEPT
 
 iptables -A FORWARD -i eth0 -d 192.168.23.3 -s ! 62.118.167.0/24 -j ACCEPT
 iptables -A FORWARD -o eth0 -s 192.168.23.3 -d ! 62.118.167.0/24 -j ACCEPT
 
 iptables -A FORWARD -i eth0 -d 192.168.21.5  -s 62.118.167.0/24 -j ACCEPT
 iptables -A FORWARD -o eth0 -s 192.168.21.5 -d 62.118.167.0/24  -j ACCEPT
 iptables -A FORWARD -i eth0 -d 192.168.21.9 -s 62.118.167.0/24 -j ACCEPT
 iptables -A FORWARD -o eth0 -s 192.168.21.9 -d 62.118.167.0/24  -j ACCEPT
 iptables -A FORWARD -i eth0 -d 192.168.21.23 -s 62.118.167.0/24  -j ACCEPT
 iptables -A FORWARD -o eth0 -s 192.168.21.23 -d 62.118.167.0/24  -j ACCEPT
 
 iptables -A FORWARD -i eth0 -d 192.168.21.5 -s ! 62.118.167.0/24  -j ACCEPT
 iptables -A FORWARD -o eth0 -s 192.168.21.5 -d ! 62.118.167.0/24  -j ACCEPT
 iptables -A FORWARD -i eth0 -d 192.168.21.9 -s ! 62.118.167.0/24  -j ACCEPT
 iptables -A FORWARD -o eth0 -s 192.168.21.9 -d ! 62.118.167.0/24  -j ACCEPT
 iptables -A FORWARD -i eth0 -d 192.168.21.23 -s ! 62.118.167.0/24  -j ACCEPT
 iptables -A FORWARD -o eth0 -s 192.168.21.23 -d ! 62.118.167.0/24  -j ACCEPT
 
 iptables -A FORWARD -i eth0 -d 192.168.22.2  -s 62.118.167.0/24 -j ACCEPT
 iptables -A FORWARD -o eth0 -s 192.168.22.2  -d 62.118.167.0/24 -j ACCEPT
 iptables -A FORWARD -i eth0 -d 192.168.22.4  -s 62.118.167.0/24 -j ACCEPT
 iptables -A FORWARD -o eth0 -s 192.168.22.4  -d 62.118.167.0/24 -j ACCEPT
 iptables -A FORWARD -i eth0 -d 192.168.22.5  -s 62.118.167.0/24 -j ACCEPT
 iptables -A FORWARD -o eth0 -s 192.168.22.5  -d 62.118.167.0/24 -j ACCEPT
 iptables -A FORWARD -i eth0 -d 192.168.22.45  -s 62.118.167.0/24 -j ACCEPT
 iptables -A FORWARD -o eth0 -s 192.168.22.45 -d 62.118.167.0/24  -j ACCEPT
 iptables -A FORWARD -i eth0 -d 192.168.22.57  -s 62.118.167.0/24 -j ACCEPT
 iptables -A FORWARD -o eth0 -s 192.168.22.57 -d 62.118.167.0/24  -j ACCEPT
 iptables -A FORWARD -i eth0 -d 192.168.22.200 -s 62.118.167.0/24  -j ACCEPT
 iptables -A FORWARD -o eth0 -s 192.168.22.200 -d 62.118.167.0/24  -j ACCEPT
 
 iptables -A FORWARD -i eth0 -d 192.168.22.2 -s ! 62.118.167.0/24  -j ACCEPT
 iptables -A FORWARD -o eth0 -s 192.168.22.2 -d ! 62.118.167.0/24  -j ACCEPT
 iptables -A FORWARD -i eth0 -d 192.168.22.4 -s ! 62.118.167.0/24  -j ACCEPT
 iptables -A FORWARD -o eth0 -s 192.168.22.4 -d ! 62.118.167.0/24  -j ACCEPT
 iptables -A FORWARD -i eth0 -d 192.168.22.5 -s ! 62.118.167.0/24  -j ACCEPT
 iptables -A FORWARD -o eth0 -s 192.168.22.5 -d ! 62.118.167.0/24  -j ACCEPT
 iptables -A FORWARD -i eth0 -d 192.168.22.45 -s ! 62.118.167.0/24  -j ACCEPT
 iptables -A FORWARD -o eth0 -s 192.168.22.45 -d ! 62.118.167.0/24  -j ACCEPT
 iptables -A FORWARD -i eth0 -d 192.168.22.57 -s ! 62.118.167.0/24  -j ACCEPT
 iptables -A FORWARD -o eth0 -s 192.168.22.57 -d ! 62.118.167.0/24  -j ACCEPT
 iptables -A FORWARD -i eth0 -d 192.168.22.200 -s ! 62.118.167.0/24  -j ACCEPT
 iptables -A FORWARD -o eth0 -s 192.168.22.200 -d ! 62.118.167.0/24  -j ACCEPT
 iptables -A FORWARD -i! eth0 -o! eth0 -j ACCEPT
 
 #iptables -A FORWARD -i eth3 -o eth0 -j ACCEPT
 #iptables -A FORWARD -i eth0 -o eth3 -j ACCEPT
 
 iptables -A INPUT -i! eth0 -j ACCEPT
 
 iptables -t nat -A POSTROUTING -s 192.168.22.2 -o eth0 -j MASQUERADE
 iptables -t nat -A POSTROUTING -s 192.168.22.4 -o eth0 -j MASQUERADE
 iptables -t nat -A POSTROUTING -s 192.168.22.5 -o eth0 -j MASQUERADE
 iptables -t nat -A POSTROUTING -s 192.168.22.45 -o eth0 -j MASQUERADE
 iptables -t nat -A POSTROUTING -s 192.168.22.57 -o eth0 -j MASQUERADE
 iptables -t nat -A POSTROUTING -s 192.168.22.200 -o eth0 -j MASQUERADE
 iptables -t nat -A POSTROUTING -s 192.168.21.5 -o eth0 -j MASQUERADE
 iptables -t nat -A POSTROUTING -s 192.168.21.9 -o eth0 -j MASQUERADE
 iptables -t nat -A POSTROUTING -s 192.168.21.23 -o eth0 -j MASQUERADE
 iptables -t nat -A POSTROUTING -s 192.168.23.3  -o eth0 -j MASQUERADE
 === Конец firewall ===
 статистика собранная мной:
 
 === Hачало 01.04.03 ===
 Chain PREROUTING (policy ACCEPT 1042K packets, 58M bytes)
  pkts bytes target     prot opt in     out     source               destination
 
 Chain POSTROUTING (policy ACCEPT 124K packets, 14M bytes)
  pkts bytes target     prot opt in     out     source               destination
 75670 3519K MASQUERADE  all  --  *      eth0    192.168.22.2         0.0.0.0/0
  122K 5800K MASQUERADE  all  --  *      eth0    192.168.22.4         0.0.0.0/0
 87305 3950K MASQUERADE  all  --  *      eth0    192.168.22.5         0.0.0.0/0
  141K 6517K MASQUERADE  all  --  *      eth0    192.168.22.45        0.0.0.0/0
  220K   11M MASQUERADE  all  --  *      eth0    192.168.22.57        0.0.0.0/0
 46168 2156K MASQUERADE  all  --  *      eth0    192.168.22.200       0.0.0.0/0
 29659 1373K MASQUERADE  all  --  *      eth0    192.168.21.5         0.0.0.0/0
 91387 4563K MASQUERADE  all  --  *      eth0    192.168.21.9         0.0.0.0/0
 11050  522K MASQUERADE  all  --  *      eth0    192.168.21.23        0.0.0.0/0
 86176 4195K MASQUERADE  all  --  *      eth0    192.168.23.3         0.0.0.0/0
 
 Chain OUTPUT (policy ACCEPT 123K packets, 14M bytes)
  pkts bytes target     prot opt in     out     source               destination
 Chain INPUT (policy DROP 101K packets, 9340K bytes)
  pkts bytes target     prot opt in     out     source               destination
  4797  462K ULOG       tcp  --  *      *       0.0.0.0/0            0.0.0.0/0
 tcp dpt:22 ULOG copy_range 0 nlgroup 1 prefix `SSH connection attempt: '
 queue_threshold 1
 21534 3487K ACCEPT     tcp  --  eth0   *       0.0.0.0/0            0.0.0.0/0
 multiport ports 22,25,53,80,110,10000
 2362K  803M ACCEPT     all  --  !eth0  *       0.0.0.0/0            0.0.0.0/0
 
 Chain FORWARD (policy DROP 0 packets, 0 bytes)
  pkts bytes target     prot opt in     out     source               destination
   100 11140 ULOG       tcp  --  *      *       0.0.0.0/0            0.0.0.0/0
 tcp dpt:22 ULOG copy_range 0 nlgroup 1 prefix `SSH connection attempt:
 
 ' queue_threshold 1
  8880 8787K ACCEPT     all  --  eth0   *       62.118.167.0/24      192.168.23.3
  5974  273K ACCEPT     all  --  *      eth0    192.168.23.3        
 62.118.167.0/24
  203K  105M ACCEPT     all  --  eth0   *      !62.118.167.0/24      192.168.23.3
  217K   23M ACCEPT     all  --  *      eth0    192.168.23.3       
 !62.118.167.0/24
  2064 1761K ACCEPT     all  --  eth0   *       62.118.167.0/24      192.168.21.5
  1567 67076 ACCEPT     all  --  *      eth0    192.168.21.5        
 62.118.167.0/24
 26836   17M ACCEPT     all  --  eth0   *       62.118.167.0/24      192.168.21.9
 20135  891K ACCEPT     all  --  *      eth0    192.168.21.9        
 62.118.167.0/24
  358K  496M ACCEPT     all  --  eth0   *       62.118.167.0/24     
 192.168.21.23
  210K   12M ACCEPT     all  --  *      eth0    192.168.21.23       
 62.118.167.0/24
  203K  141M ACCEPT     all  --  eth0   *      !62.118.167.0/24      192.168.21.5
  201K   20M ACCEPT     all  --  *      eth0    192.168.21.5       
 !62.118.167.0/24
  768K  615M ACCEPT     all  --  eth0   *      !62.118.167.0/24      192.168.21.9
  704K   73M ACCEPT     all  --  *      eth0    192.168.21.9       
 !62.118.167.0/24
 95621   68M ACCEPT     all  --  eth0   *      !62.118.167.0/24     
 192.168.21.23
 96181 8871K ACCEPT     all  --  *      eth0    192.168.21.23      
 !62.118.167.0/24
 44156   16M ACCEPT     all  --  eth0   *       62.118.167.0/24      192.168.22.2
 39330 1823K ACCEPT     all  --  *      eth0    192.168.22.2        
 62.118.167.0/24
 46743   31M ACCEPT     all  --  eth0   *       62.118.167.0/24      192.168.22.4
 38988 3245K ACCEPT     all  --  *      eth0    192.168.22.4        
 62.118.167.0/24
 23384   11M ACCEPT     all  --  eth0   *       62.118.167.0/24      192.168.22.5
 20587 1009K ACCEPT     all  --  *      eth0    192.168.22.5        
 62.118.167.0/24
 86305   57M ACCEPT     all  --  eth0   *       62.118.167.0/24     
 192.168.22.45
 68098 2988K ACCEPT     all  --  *      eth0    192.168.22.45       
 62.118.167.0/24
 32086   29M ACCEPT     all  --  eth0   *       62.118.167.0/24     
 192.168.22.57
 23556 1164K ACCEPT     all  --  *      eth0    192.168.22.57       
 62.118.167.0/24
 19150   19M ACCEPT     all  --  eth0   *       62.118.167.0/24     
 192.168.22.200
 13793  584K ACCEPT     all  --  *      eth0    192.168.22.200      
 62.118.167.0/24
  540K  353M ACCEPT     all  --  eth0   *      !62.118.167.0/24      192.168.22.2
  548K   64M ACCEPT     all  --  *      eth0    192.168.22.2       
 !62.118.167.0/24
  878K  604M ACCEPT     all  --  eth0   *      !62.118.167.0/24      192.168.22.4
  878K  115M ACCEPT     all  --  *      eth0    192.168.22.4       
 !62.118.167.0/24
  558K  246M ACCEPT     all  --  eth0   *      !62.118.167.0/24      192.168.22.5
  588K   92M ACCEPT     all  --  *      eth0    192.168.22.5       
 !62.118.167.0/24
 1205K  842M ACCEPT     all  --  eth0   *      !62.118.167.0/24     
 192.168.22.45
 1130K  121M ACCEPT     all  --  *      eth0    192.168.22.45      
 !62.118.167.0/24
 1299K  466M ACCEPT     all  --  eth0   *      !62.118.167.0/24     
 192.168.22.57
 1486K  546M ACCEPT     all  --  *      eth0    192.168.22.57      
 !62.118.167.0/24
  382K  267M ACCEPT     all  --  eth0   *      !62.118.167.0/24     
 192.168.22.200
  380K   44M ACCEPT     all  --  *      eth0    192.168.22.200     
 !62.118.167.0/24
  357K  198M ACCEPT     all  --  !eth0  !eth0   0.0.0.0/0            0.0.0.0/0
 
 Chain OUTPUT (policy ACCEPT 2443K packets, 1834M bytes)
  pkts bytes target     prot opt in     out     source               destination
 === Конец 01.04.03 ===
                                                    С уважением */Сергей/*
 --- Это письмо написано при помощи клавиатуры
  * Origin: Beyond reality! (2:5020/1653)
 
 

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 Iptables log   Sergey Gurinovich   14 Apr 2003 16:22:02 
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