[root@mail install]# netstat -an |grep 80 |grep ESTABLISHED | awk '{print $5}'|awk -F: '{print $1}'|sort |uniq -c |sort -r
      4 203.208.39.22
      4 119.190.4.73
      3 60.2.236.38
      3 192.168.1.108
      1 74.125.71.154
      1 72.14.213.138
      1 72.14.213.102
      1 64.4.44.87
      1 64.4.34.224
      1 61.135.250.188
      1 211.151.78.48
      1 211.147.4.49
      1 209.85.153.104
      1 174.36.30.31
      1 123.58.181.248
      1 123.125.162.32
      1 119.147.65.70
      1 114.80.210.217
      1 114.113.157.75
      1 114.112.161.158