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iftop-监控服务器实时带宽情况
source link: https://blog.p2hp.com/archives/9380
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介绍Linux查看带宽网卡流量的工具：iftop
iftop的功能：
- 反向解析IP
- 显示端口信息
安装iftop
yum install iftop -y
相关参数介绍
- “<=”/"=>"：流量的方向
- “TX”：网卡发出的流量（出方向）
- “RX”：网卡接收的流量（入方向）
- “TOTAL”：网卡总流量（出和入方向总和）
- “cum”：iftop运行到当前时间的总流量
- “peak”：网卡的流量峰值
- “rates”：分别表示2s，10s，40s的平均流量
效果截图省略
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