服务器网络问题排查各种工具_网络排查工具-优快云博客

本文链接：https://blog.youkuaiyun.com/drzeno/article/details/121075668

本文介绍了多个用于服务器网络问题排查的工具，包括nload、iftop、ifstat、iptraf、top、ntop、netsniff-ng、watch ifconfig、watch cat /proc/net/dev以及perf、iotop、ltrace等。详细阐述了每个工具的安装方法、使用技巧和功能，帮助管理员有效监控和诊断网络状况。

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一、nload工具

centOS安装：yum install nload(ubuntu 安装 sudo apt install nload 后面其他命令安装的地方类似)

项目地址：Paul Warren / iftop · GitLab
使用方法：

nload version 0.7.4
Copyright (C) 2001 - 2012 by Roland Riegel <feedback@roland-riegel.de>
nload comes with ABSOLUTELY NO WARRANTY. This is free software, and you are
welcome to redistribute it under certain conditions. For more details see the
GNU General Public License Version 2 (http://www.gnu.org/copyleft/gpl.html).

Command line syntax:
nload [options] [devices]
nload --help|-h

Options:
-a period       Sets the length in seconds of the time window for average
                calculation.
                Default is 300.
                -----------------------------------------
                |全部数据的刷新时间周期，单位是秒，默认是300|
                -----------------------------------------
-i max_scaling  Specifies the 100% mark in kBit/s of the graph indicating the
                incoming bandwidth usage. Ignored if max_scaling is 0 or the
                switch -m is given.
                Default is 10240.
                -------------------------------------------------
                |网卡的流量图的显示比例最大值设置，默认10240 kBit/s.|
                -------------------------------------------------
-m              Show multiple devices at a time; no traffic graphs.
                ---------------------------
                |不显示流量图，只显示统计数据|
                ---------------------------
-o max_scaling  Same as -i but for the graph indicating the outgoing bandwidth
                usage.
                Default is 10240.
                ----------------------------------------------------
                |出去网卡的流量图的显示比例最大值设置，默认10240 kBit/s|
                ----------------------------------------------------
-t interval     Determines the refresh interval of the display in milliseconds.
                Default is 500.
                -----------------------------------------