LOG 归档 - 第116页共139页

AOS-CX Packet Capture: tcpdump on Aruba CX Switches

Capture packets on Aruba CX switches with Linux tcpdump: CPU and interface mirrors, diag utilities filters, VXLAN decoding, DHCP reads and capture lim

admin 2026-08-24

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Dell OS10 Basic Switch Management: CLI Configuration Guide

Configure Dell PowerSwitch OS10 management: static IP on mgmt 1/1/1, management route, admin user roles, and write memory with step-by-step CLI exampl

admin 2026-08-24

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Juniper SRX Security Policy Configuration: Zones to Policy Rules

Juniper SRX security policies explained: security zones, address books, applications, first-match ordering, verification commands and deployment best

admin 2026-08-24

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Configure Microsoft Entra ID Governance Entitlement Management Access Packages

Microsoft Entra ID Governance has many cool features, one of them is Entitlement Management. Within Entitlement Management is the Access Packages feat

admin 2026-08-24

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Cisco IOS Ansible Playbook: Standard + Unique Configs

Build a Cisco IOS Ansible playbook with roles: standard banner, DNS, NTP and secret configs plus host_vars for per-device hostname and VLANs.

admin 2026-08-23

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Ansible Network Automation 101: Cisco IOS First Steps

Beginner guide to Ansible for Cisco IOS: install Ansible, build inventory and group_vars, run ios_command show commands, and make idempotent VLAN chan

admin 2026-08-23

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使用 tcpdump 捕获网络数据包：Red Hat 实战指南

从 Red Hat 官方指南出发的 tcpdump 抓包实战：两端同时抓包、二进制格式保存、BPF 过滤器写法与常见误用、滚动捕获 -W -C 参数、-s 抓包长度取舍、权限与接口报错处理，以及各类故障在抓包里呈现什么特征的对照表，帮你一次性抓到可用于分析的证据。

admin 2026-08-23

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适合初学者的 17 个最佳 Linux 网络和故障排除命令

按固定顺序梳理 Linux 网络排障命令：从 ip、dig、ss 到 nc、curl 与 tcpdump，逐个说明命令适合排查的问题、关键参数与输出解读，帮助初学者按层次收敛故障范围、避开把 TIME_WAIT 当故障之类的常见误判，并总结一套可直接套用的排障顺序和示例。

admin 2026-08-23

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Preventing DWDM Failures: Optical Network Reliability

Prevent DWDM failures: validate design assumptions, measure per-channel power and tilt, control physical degradation, and keep documentation accurate.

admin 2026-08-23

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DWDM System Commissioning: The 5-Phase Checklist

Commission DWDM spans in 5 phases: OTDR fiber characterization, EDFA/Raman setup, channel provisioning, OSNR verification and protection testing.

admin 2026-08-23

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