fetus Diary

2007/10/27(土) - 簡易型スパム対策のようなもの

[root@HARUKA ~]# iptables -L -n -v | grep "tcp dpt:25" | grep "DROP" | grep -v "    0     0"
    3   144 DROP       tcp  --  *      *       24.132.0.0/17        0.0.0.0/0           tcp dpt:25
   15   768 DROP       tcp  --  *      *       58.8.0.0/15          0.0.0.0/0           tcp dpt:25
    3   144 DROP       tcp  --  *      *       58.60.0.0/14         0.0.0.0/0           tcp dpt:25
    3   144 DROP       tcp  --  *      *       58.69.0.0/16         0.0.0.0/0           tcp dpt:25
    3   192 DROP       tcp  --  *      *       58.160.0.0/13        0.0.0.0/0           tcp dpt:25
    7   308 DROP       tcp  --  *      *       58.224.0.0/12        0.0.0.0/0           tcp dpt:25
   41  1968 DROP       tcp  --  *      *       58.248.0.0/13        0.0.0.0/0           tcp dpt:25
    3   144 DROP       tcp  --  *      *       59.0.0.0/11          0.0.0.0/0           tcp dpt:25
    6   276 DROP       tcp  --  *      *       59.88.0.0/13         0.0.0.0/0           tcp dpt:25
    3   144 DROP       tcp  --  *      *       59.104.0.0/15        0.0.0.0/0           tcp dpt:25
    6   288 DROP       tcp  --  *      *       59.160.0.0/14        0.0.0.0/0           tcp dpt:25
    3   144 DROP       tcp  --  *      *       59.176.0.0/13        0.0.0.0/0           tcp dpt:25
    3   144 DROP       tcp  --  *      *       59.184.0.0/15        0.0.0.0/0           tcp dpt:25
   12   576 DROP       tcp  --  *      *       60.16.0.0/13         0.0.0.0/0           tcp dpt:25
   12   548 DROP       tcp  --  *      *       60.48.0.0/14         0.0.0.0/0           tcp dpt:25
    3   144 DROP       tcp  --  *      *       60.52.0.0/15         0.0.0.0/0           tcp dpt:25
    2    96 DROP       tcp  --  *      *       60.208.0.0/13        0.0.0.0/0           tcp dpt:25
    3   144 DROP       tcp  --  *      *       60.241.0.0/16        0.0.0.0/0           tcp dpt:25
    3   144 DROP       tcp  --  *      *       61.2.0.0/15          0.0.0.0/0           tcp dpt:25
   30  1440 DROP       tcp  --  *      *       61.7.128.0/17        0.0.0.0/0           tcp dpt:25
    9   432 DROP       tcp  --  *      *       61.28.128.0/18       0.0.0.0/0           tcp dpt:25
   25  1500 DROP       tcp  --  *      *       61.56.0.0/13         0.0.0.0/0           tcp dpt:25
    6   288 DROP       tcp  --  *      *       61.96.0.0/12         0.0.0.0/0           tcp dpt:25
    9   480 DROP       tcp  --  *      *       61.144.0.0/14        0.0.0.0/0           tcp dpt:25
   15   720 DROP       tcp  --  *      *       61.246.0.0/16        0.0.0.0/0           tcp dpt:25
    3   144 DROP       tcp  --  *      *       62.163.0.0/16        0.0.0.0/0           tcp dpt:25
    3   144 DROP       tcp  --  *      *       62.218.0.0/16        0.0.0.0/0           tcp dpt:25
    5   240 DROP       tcp  --  *      *       77.51.0.0/16         0.0.0.0/0           tcp dpt:25
   36  1728 DROP       tcp  --  *      *       77.109.0.0/18        0.0.0.0/0           tcp dpt:25
   12   576 DROP       tcp  --  *      *       77.120.0.0/14        0.0.0.0/0           tcp dpt:25
   13   624 DROP       tcp  --  *      *       77.222.224.0/19      0.0.0.0/0           tcp dpt:25
   42  2016 DROP       tcp  --  *      *       77.241.32.0/20       0.0.0.0/0           tcp dpt:25
    3   144 DROP       tcp  --  *      *       77.248.0.0/14        0.0.0.0/0           tcp dpt:25
    9   432 DROP       tcp  --  *      *       78.56.0.0/13         0.0.0.0/0           tcp dpt:25
  372 17856 DROP       tcp  --  *      *       78.98.0.0/15         0.0.0.0/0           tcp dpt:25
    3   180 DROP       tcp  --  *      *       78.106.0.0/15        0.0.0.0/0           tcp dpt:25
    6   288 DROP       tcp  --  *      *       78.160.0.0/11        0.0.0.0/0           tcp dpt:25
   20   960 DROP       tcp  --  *      *       79.0.0.0/10          0.0.0.0/0           tcp dpt:25
    3   144 DROP       tcp  --  *      *       80.16.0.0/13         0.0.0.0/0           tcp dpt:25
    6   288 DROP       tcp  --  *      *       80.48.0.0/13         0.0.0.0/0           tcp dpt:25
    3   144 DROP       tcp  --  *      *       80.56.0.0/15         0.0.0.0/0           tcp dpt:25
    3   144 DROP       tcp  --  *      *       80.78.144.0/20       0.0.0.0/0           tcp dpt:25
    3   144 DROP       tcp  --  *      *       80.98.0.0/15         0.0.0.0/0           tcp dpt:25
    2    96 DROP       tcp  --  *      *       80.116.0.0/15        0.0.0.0/0           tcp dpt:25
   38  1824 DROP       tcp  --  *      *       80.254.112.0/20      0.0.0.0/0           tcp dpt:25
   12   576 DROP       tcp  --  *      *       81.72.0.0/14         0.0.0.0/0           tcp dpt:25
    3   144 DROP       tcp  --  *      *       81.112.0.0/12        0.0.0.0/0           tcp dpt:25
    3   144 DROP       tcp  --  *      *       81.166.0.0/15        0.0.0.0/0           tcp dpt:25
    3   144 DROP       tcp  --  *      *       81.182.0.0/15        0.0.0.0/0           tcp dpt:25
    3   144 DROP       tcp  --  *      *       81.190.0.0/16        0.0.0.0/0           tcp dpt:25
    2    96 DROP       tcp  --  *      *       81.193.0.0/16        0.0.0.0/0           tcp dpt:25
    3   144 DROP       tcp  --  *      *       81.195.0.0/16        0.0.0.0/0           tcp dpt:25
   15   960 DROP       tcp  --  *      *       81.198.0.0/16        0.0.0.0/0           tcp dpt:25
    3   144 DROP       tcp  --  *      *       81.208.0.0/17        0.0.0.0/0           tcp dpt:25
    6   288 DROP       tcp  --  *      *       81.212.0.0/14        0.0.0.0/0           tcp dpt:25
    3   144 DROP       tcp  --  *      *       81.222.0.0/16        0.0.0.0/0           tcp dpt:25
   21  1032 DROP       tcp  --  *      *       82.48.0.0/12         0.0.0.0/0           tcp dpt:25
    7   308 DROP       tcp  --  *      *       82.76.0.0/14         0.0.0.0/0           tcp dpt:25
    8   384 DROP       tcp  --  *      *       82.80.0.0/15         0.0.0.0/0           tcp dpt:25
    3   144 DROP       tcp  --  *      *       82.84.0.0/15         0.0.0.0/0           tcp dpt:25
    3   144 DROP       tcp  --  *      *       82.88.0.0/14         0.0.0.0/0           tcp dpt:25
    3   144 DROP       tcp  --  *      *       82.104.0.0/14        0.0.0.0/0           tcp dpt:25
    3   144 DROP       tcp  --  *      *       82.146.224.0/19      0.0.0.0/0           tcp dpt:25
   15   720 DROP       tcp  --  *      *       82.154.0.0/15        0.0.0.0/0           tcp dpt:25
   30  1800 DROP       tcp  --  *      *       82.158.0.0/15        0.0.0.0/0           tcp dpt:25
   39  1872 DROP       tcp  --  *      *       82.193.128.0/19      0.0.0.0/0           tcp dpt:25
   15   720 DROP       tcp  --  *      *       82.197.32.0/19       0.0.0.0/0           tcp dpt:25
  163  7796 DROP       tcp  --  *      *       82.200.128.0/17      0.0.0.0/0           tcp dpt:25
  144  6980 DROP       tcp  --  *      *       83.0.0.0/11          0.0.0.0/0           tcp dpt:25
    3   192 DROP       tcp  --  *      *       83.32.0.0/12         0.0.0.0/0           tcp dpt:25
    3   144 DROP       tcp  --  *      *       83.97.128.0/17       0.0.0.0/0           tcp dpt:25
    3   144 DROP       tcp  --  *      *       83.103.0.0/17        0.0.0.0/0           tcp dpt:25
    3   144 DROP       tcp  --  *      *       83.130.0.0/16        0.0.0.0/0           tcp dpt:25
   30  1440 DROP       tcp  --  *      *       83.213.0.0/16        0.0.0.0/0           tcp dpt:25
    3   144 DROP       tcp  --  *      *       83.220.32.0/19       0.0.0.0/0           tcp dpt:25
  180  8640 DROP       tcp  --  *      *       83.237.0.0/16        0.0.0.0/0           tcp dpt:25
   18   912 DROP       tcp  --  *      *       83.238.0.0/16        0.0.0.0/0           tcp dpt:25
    3   144 DROP       tcp  --  *      *       84.94.0.0/15         0.0.0.0/0           tcp dpt:25
    3   144 DROP       tcp  --  *      *       84.104.0.0/14        0.0.0.0/0           tcp dpt:25
   33  1584 DROP       tcp  --  *      *       84.108.0.0/14        0.0.0.0/0           tcp dpt:25
   21  1044 DROP       tcp  --  *      *       84.220.0.0/14        0.0.0.0/0           tcp dpt:25
    3   144 DROP       tcp  --  *      *       84.228.0.0/15        0.0.0.0/0           tcp dpt:25
    3   144 DROP       tcp  --  *      *       85.18.0.0/16         0.0.0.0/0           tcp dpt:25
    3   144 DROP       tcp  --  *      *       85.20.0.0/16         0.0.0.0/0           tcp dpt:25
  129  6192 DROP       tcp  --  *      *       85.21.0.0/16         0.0.0.0/0           tcp dpt:25
    3   144 DROP       tcp  --  *      *       85.32.0.0/12         0.0.0.0/0           tcp dpt:25
    3   144 DROP       tcp  --  *      *       85.48.0.0/12         0.0.0.0/0           tcp dpt:25
   16   736 DROP       tcp  --  *      *       85.72.0.0/14         0.0.0.0/0           tcp dpt:25
   59  2792 DROP       tcp  --  *      *       85.96.0.0/12         0.0.0.0/0           tcp dpt:25
   37  1776 DROP       tcp  --  *      *       85.113.192.0/19      0.0.0.0/0           tcp dpt:25
    7   308 DROP       tcp  --  *      *       85.120.0.0/14        0.0.0.0/0           tcp dpt:25
   33  1584 DROP       tcp  --  *      *       85.140.0.0/15        0.0.0.0/0           tcp dpt:25
    3   144 DROP       tcp  --  *      *       85.159.40.0/21       0.0.0.0/0           tcp dpt:25
    2    96 DROP       tcp  --  *      *       85.196.128.0/18      0.0.0.0/0           tcp dpt:25
    3   156 DROP       tcp  --  *      *       86.120.0.0/13        0.0.0.0/0           tcp dpt:25
   27  1296 DROP       tcp  --  *      *       87.0.0.0/11          0.0.0.0/0           tcp dpt:25
    3   144 DROP       tcp  --  *      *       87.110.0.0/16        0.0.0.0/0           tcp dpt:25
    3   144 DROP       tcp  --  *      *       87.216.0.0/13        0.0.0.0/0           tcp dpt:25
    3   144 DROP       tcp  --  *      *       88.0.0.0/11          0.0.0.0/0           tcp dpt:25
    3   144 DROP       tcp  --  *      *       88.32.0.0/11         0.0.0.0/0           tcp dpt:25
    2    84 DROP       tcp  --  *      *       88.100.0.0/14        0.0.0.0/0           tcp dpt:25
   13   624 DROP       tcp  --  *      *       88.200.128.0/17      0.0.0.0/0           tcp dpt:25
    7   308 DROP       tcp  --  *      *       88.210.64.0/18       0.0.0.0/0           tcp dpt:25
   97  4668 DROP       tcp  --  *      *       88.224.0.0/11        0.0.0.0/0           tcp dpt:25
    2    96 DROP       tcp  --  *      *       89.20.128.0/19       0.0.0.0/0           tcp dpt:25
  309 14832 DROP       tcp  --  *      *       89.31.88.0/21        0.0.0.0/0           tcp dpt:25
    3   144 DROP       tcp  --  *      *       89.32.0.0/12         0.0.0.0/0           tcp dpt:25
   30  1440 DROP       tcp  --  *      *       89.64.0.0/12         0.0.0.0/0           tcp dpt:25
    4   172 DROP       tcp  --  *      *       89.102.0.0/15        0.0.0.0/0           tcp dpt:25
    6   288 DROP       tcp  --  *      *       89.109.0.0/18        0.0.0.0/0           tcp dpt:25
    3   144 DROP       tcp  --  *      *       89.118.0.0/15        0.0.0.0/0           tcp dpt:25
   11   540 DROP       tcp  --  *      *       89.138.0.0/15        0.0.0.0/0           tcp dpt:25
    3   144 DROP       tcp  --  *      *       89.152.0.0/14        0.0.0.0/0           tcp dpt:25
    3   144 DROP       tcp  --  *      *       89.169.0.0/16        0.0.0.0/0           tcp dpt:25
  120  5760 DROP       tcp  --  *      *       89.178.0.0/15        0.0.0.0/0           tcp dpt:25
    1    48 DROP       tcp  --  *      *       89.207.64.0/21       0.0.0.0/0           tcp dpt:25
   14   672 DROP       tcp  --  *      *       89.232.64.0/18       0.0.0.0/0           tcp dpt:25
   15   720 DROP       tcp  --  *      *       89.252.0.0/18        0.0.0.0/0           tcp dpt:25
    3   144 DROP       tcp  --  *      *       89.253.128.0/18      0.0.0.0/0           tcp dpt:25
  150  7200 DROP       tcp  --  *      *       90.188.0.0/15        0.0.0.0/0           tcp dpt:25
   31  1488 DROP       tcp  --  *      *       91.122.0.0/16        0.0.0.0/0           tcp dpt:25
    3   144 DROP       tcp  --  *      *       91.127.0.0/16        0.0.0.0/0           tcp dpt:25
    6   288 DROP       tcp  --  *      *       116.14.0.0/15        0.0.0.0/0           tcp dpt:25
    3   180 DROP       tcp  --  *      *       116.90.184.0/21      0.0.0.0/0           tcp dpt:25
    7   328 DROP       tcp  --  *      *       121.88.0.0/16        0.0.0.0/0           tcp dpt:25
    2    96 DROP       tcp  --  *      *       121.240.0.0/13       0.0.0.0/0           tcp dpt:25
    1    40 DROP       tcp  --  *      *       122.116.0.0/15       0.0.0.0/0           tcp dpt:25
   10   452 DROP       tcp  --  *      *       122.120.0.0/13       0.0.0.0/0           tcp dpt:25
    9   432 DROP       tcp  --  *      *       122.160.0.0/12       0.0.0.0/0           tcp dpt:25
    7   308 DROP       tcp  --  *      *       123.16.0.0/12        0.0.0.0/0           tcp dpt:25
    5   260 DROP       tcp  --  *      *       123.164.0.0/14       0.0.0.0/0           tcp dpt:25
    7   308 DROP       tcp  --  *      *       123.201.0.0/16       0.0.0.0/0           tcp dpt:25
   42  2016 DROP       tcp  --  *      *       124.21.128.0/17      0.0.0.0/0           tcp dpt:25
   30  1440 DROP       tcp  --  *      *       124.28.128.0/18      0.0.0.0/0           tcp dpt:25
    3   144 DROP       tcp  --  *      *       124.30.0.0/16        0.0.0.0/0           tcp dpt:25
   14   672 DROP       tcp  --  *      *       124.104.0.0/14       0.0.0.0/0           tcp dpt:25
    2    96 DROP       tcp  --  *      *       124.120.0.0/15       0.0.0.0/0           tcp dpt:25
    6   264 DROP       tcp  --  *      *       125.40.0.0/13        0.0.0.0/0           tcp dpt:25
    3   192 DROP       tcp  --  *      *       125.62.0.0/18        0.0.0.0/0           tcp dpt:25
    3   144 DROP       tcp  --  *      *       125.88.0.0/13        0.0.0.0/0           tcp dpt:25
    3   156 DROP       tcp  --  *      *       125.128.0.0/11       0.0.0.0/0           tcp dpt:25
    3   144 DROP       tcp  --  *      *       125.160.0.0/14       0.0.0.0/0           tcp dpt:25
   13   744 DROP       tcp  --  *      *       125.176.0.0/12       0.0.0.0/0           tcp dpt:25
    3   144 DROP       tcp  --  *      *       125.224.0.0/13       0.0.0.0/0           tcp dpt:25
    6   312 DROP       tcp  --  *      *       125.240.0.0/13       0.0.0.0/0           tcp dpt:25
    3   144 DROP       tcp  --  *      *       168.226.0.0/16       0.0.0.0/0           tcp dpt:25
    9   420 DROP       tcp  --  *      *       189.0.0.0/11         0.0.0.0/0           tcp dpt:25
    7   308 DROP       tcp  --  *      *       189.32.0.0/11        0.0.0.0/0           tcp dpt:25
  338 15976 DROP       tcp  --  *      *       189.128.0.0/10       0.0.0.0/0           tcp dpt:25
    2   120 DROP       tcp  --  *      *       190.1.160.0/19       0.0.0.0/0           tcp dpt:25
    3   144 DROP       tcp  --  *      *       190.4.32.0/19        0.0.0.0/0           tcp dpt:25
    3   144 DROP       tcp  --  *      *       190.24.0.0/16        0.0.0.0/0           tcp dpt:25
   20   904 DROP       tcp  --  *      *       190.42.0.0/15        0.0.0.0/0           tcp dpt:25
    6   288 DROP       tcp  --  *      *       190.46.0.0/15        0.0.0.0/0           tcp dpt:25
    2    96 DROP       tcp  --  *      *       190.50.0.0/16        0.0.0.0/0           tcp dpt:25
    6   288 DROP       tcp  --  *      *       190.51.0.0/16        0.0.0.0/0           tcp dpt:25
    2   104 DROP       tcp  --  *      *       190.156.0.0/15       0.0.0.0/0           tcp dpt:25
    3   144 DROP       tcp  --  *      *       190.160.0.0/15       0.0.0.0/0           tcp dpt:25
    3   144 DROP       tcp  --  *      *       190.188.0.0/15       0.0.0.0/0           tcp dpt:25
    6   288 DROP       tcp  --  *      *       194.212.0.0/16       0.0.0.0/0           tcp dpt:25
    3   144 DROP       tcp  --  *      *       194.242.192.0/19     0.0.0.0/0           tcp dpt:25
    3   156 DROP       tcp  --  *      *       195.23.0.0/16        0.0.0.0/0           tcp dpt:25
   14   672 DROP       tcp  --  *      *       195.66.140.0/23      0.0.0.0/0           tcp dpt:25
   30  1440 DROP       tcp  --  *      *       195.135.236.0/22     0.0.0.0/0           tcp dpt:25
    7   308 DROP       tcp  --  *      *       195.146.128.0/19     0.0.0.0/0           tcp dpt:25
    5   248 DROP       tcp  --  *      *       196.217.0.0/16       0.0.0.0/0           tcp dpt:25
    3   144 DROP       tcp  --  *      *       200.63.0.0/19        0.0.0.0/0           tcp dpt:25
    3   144 DROP       tcp  --  *      *       200.69.128.0/19      0.0.0.0/0           tcp dpt:25
    6   288 DROP       tcp  --  *      *       200.72.0.0/17        0.0.0.0/0           tcp dpt:25
   14   672 DROP       tcp  --  *      *       200.84.160.0/19      0.0.0.0/0           tcp dpt:25
    3   144 DROP       tcp  --  *      *       200.96.0.0/13        0.0.0.0/0           tcp dpt:25
    3   144 DROP       tcp  --  *      *       200.106.64.0/18      0.0.0.0/0           tcp dpt:25
    5   320 DROP       tcp  --  *      *       200.124.160.0/20     0.0.0.0/0           tcp dpt:25
    3   144 DROP       tcp  --  *      *       200.126.160.0/19     0.0.0.0/0           tcp dpt:25
    3   144 DROP       tcp  --  *      *       200.127.128.0/17     0.0.0.0/0           tcp dpt:25
   34  1664 DROP       tcp  --  *      *       200.128.0.0/9        0.0.0.0/0           tcp dpt:25
   95  4560 DROP       tcp  --  *      *       201.0.0.0/12         0.0.0.0/0           tcp dpt:25
    6   288 DROP       tcp  --  *      *       201.16.0.0/12        0.0.0.0/0           tcp dpt:25
    3   156 DROP       tcp  --  *      *       201.32.0.0/12        0.0.0.0/0           tcp dpt:25
   69  3432 DROP       tcp  --  *      *       201.64.0.0/11        0.0.0.0/0           tcp dpt:25
    3   192 DROP       tcp  --  *      *       201.213.0.0/16       0.0.0.0/0           tcp dpt:25
    5   240 DROP       tcp  --  *      *       201.214.0.0/17       0.0.0.0/0           tcp dpt:25
    3   144 DROP       tcp  --  *      *       201.214.128.0/17     0.0.0.0/0           tcp dpt:25
   26  1248 DROP       tcp  --  *      *       201.216.128.0/19     0.0.0.0/0           tcp dpt:25
    5   220 DROP       tcp  --  *      *       201.229.192.0/18     0.0.0.0/0           tcp dpt:25
    3   144 DROP       tcp  --  *      *       201.235.128.0/17     0.0.0.0/0           tcp dpt:25
    3   144 DROP       tcp  --  *      *       201.240.128.0/17     0.0.0.0/0           tcp dpt:25
    3   144 DROP       tcp  --  *      *       201.244.0.0/16       0.0.0.0/0           tcp dpt:25
    7   308 DROP       tcp  --  *      *       201.245.0.0/16       0.0.0.0/0           tcp dpt:25
    3   144 DROP       tcp  --  *      *       202.70.192.0/20      0.0.0.0/0           tcp dpt:25
    2    96 DROP       tcp  --  *      *       203.109.64.0/19      0.0.0.0/0           tcp dpt:25
    3   144 DROP       tcp  --  *      *       203.228.0.0/14       0.0.0.0/0           tcp dpt:25
    6   288 DROP       tcp  --  *      *       210.73.64.0/18       0.0.0.0/0           tcp dpt:25
    3   144 DROP       tcp  --  *      *       211.112.0.0/14       0.0.0.0/0           tcp dpt:25
    7   308 DROP       tcp  --  *      *       211.176.0.0/14       0.0.0.0/0           tcp dpt:25
    7   308 DROP       tcp  --  *      *       211.255.0.0/16       0.0.0.0/0           tcp dpt:25
    3   144 DROP       tcp  --  *      *       212.33.224.0/19      0.0.0.0/0           tcp dpt:25
    3   144 DROP       tcp  --  *      *       212.38.128.0/19      0.0.0.0/0           tcp dpt:25
    3   144 DROP       tcp  --  *      *       212.96.160.0/19      0.0.0.0/0           tcp dpt:25
    7   308 DROP       tcp  --  *      *       212.120.64.0/18      0.0.0.0/0           tcp dpt:25
   39  1872 DROP       tcp  --  *      *       212.244.0.0/16       0.0.0.0/0           tcp dpt:25
    3   144 DROP       tcp  --  *      *       213.22.0.0/16        0.0.0.0/0           tcp dpt:25
    7   308 DROP       tcp  --  *      *       213.140.0.0/19       0.0.0.0/0           tcp dpt:25
    3   144 DROP       tcp  --  *      *       213.156.32.0/19      0.0.0.0/0           tcp dpt:25
  147  7056 DROP       tcp  --  *      *       213.227.192.0/18     0.0.0.0/0           tcp dpt:25
   12   561 DROP       tcp  --  *      *       213.255.0.0/18       0.0.0.0/0           tcp dpt:25
    3   144 DROP       tcp  --  *      *       217.120.0.0/14       0.0.0.0/0           tcp dpt:25
    3   144 DROP       tcp  --  *      *       217.173.16.0/20      0.0.0.0/0           tcp dpt:25
    7   308 DROP       tcp  --  *      *       218.13.0.0/16        0.0.0.0/0           tcp dpt:25
    8   384 DROP       tcp  --  *      *       218.20.0.0/16        0.0.0.0/0           tcp dpt:25
    7   308 DROP       tcp  --  *      *       218.101.128.0/17     0.0.0.0/0           tcp dpt:25
   15   720 DROP       tcp  --  *      *       218.111.0.0/16       0.0.0.0/0           tcp dpt:25
    3   144 DROP       tcp  --  *      *       219.95.0.0/16        0.0.0.0/0           tcp dpt:25
    3   144 DROP       tcp  --  *      *       219.232.0.0/14       0.0.0.0/0           tcp dpt:25
    7   304 DROP       tcp  --  *      *       220.80.0.0/13        0.0.0.0/0           tcp dpt:25
    3   144 DROP       tcp  --  *      *       220.255.0.0/17       0.0.0.0/0           tcp dpt:25
    6   288 DROP       tcp  --  *      *       221.2.0.0/16         0.0.0.0/0           tcp dpt:25
   16   768 DROP       tcp  --  *      *       221.124.0.0/14       0.0.0.0/0           tcp dpt:25
    3   144 DROP       tcp  --  *      *       221.200.0.0/14       0.0.0.0/0           tcp dpt:25
    3   144 DROP       tcp  --  *      *       221.207.128.0/17     0.0.0.0/0           tcp dpt:25
   16   768 DROP       tcp  --  *      *       222.120.0.0/15       0.0.0.0/0           tcp dpt:25
    4   192 DROP       tcp  --  *      *       222.160.0.0/15       0.0.0.0/0           tcp dpt:25
    3   144 DROP       tcp  --  *      *       222.218.0.0/16       0.0.0.0/0           tcp dpt:25
   16   696 DROP       tcp  --  *      *       222.252.0.0/14       0.0.0.0/0           tcp dpt:25
    3   144 DROP       tcp  --  *      *       71.208.0.0/12        0.0.0.0/0           tcp dpt:25

…ちょっと多すぎやしませんかい?

# 大体 1 日でこの分量

もっとも、

[root@HARUKA ~]# iptables -L -n -v | grep "tcp dpt:25" | grep "DROP" | wc -l
27058

フィルタルール作りすぎという噂も多々ありますがぁ…

# 現在、64 の国(と地域)が無条件ブラックリスト

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