在前端用netstat看状态？
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比如 netstat -na|grep tcp|gawk '{print $5}'|sed 's/::ffff://g'|grep -v "::"|grep -v ":\\*"|gawk 'FS=":" {print $1}'|grep -v "127.0.0.1"|sort |uniq -c |sort -nr
这条命令，可以按连接次数IP倒排序，输出的内容类似
69 218.213.241.149
???? 65 116.23.209.15
???? 62 121.32.51.166
???? 57 218.240.137.162
???? 52 123.113.33.243
???? 45 221.238.245.116
???? 45 220.180.129.102
???? 44 222.243.5.91
???? 42 60.209.42.134
???? 39 221.212.195.202
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