LOG 归档 - 第15页共139页

Carrier-Grade NAT (CGNAT) Design and Configuration

CGNAT design essentials: log-port ranges, deterministic NAT, port-block allocation, logging requirements and how to size a NAT444 deployment from RFC

admin 2026-10-05

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DNS Zone Transfer Hardening: AXFR and IXFR

Zone transfers replicate DNS and leak your host list. Learn how AXFR and IXFR work and how to lock them down with TSIG and allow-transfer on BIND and

admin 2026-10-05

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mDNS Gateway Across VLANs: Bonjour Reflection Setup

Apple Bonjour mDNS does not cross VLANs by default. Learn how an mDNS gateway reflects AirPlay and AirPrint between subnets, and how to bound the mult

admin 2026-10-05

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BGP Optimal Route Reflection (ORR) Explained

How BGP optimal route reflection fixes the suboptimal routing that plain route reflectors create, with the ORR cost community and a worked configurati

admin 2026-10-05

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RADIUS CoA and Disconnect-Message Configuration Guide

How RADIUS Change-of-Authorization and Disconnect-Message work, how to enable them on Cisco, Aruba and FreeRADIUS, and how to debug the common silent

admin 2026-10-05

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华为交换机 SNMP 配置与网管对接教程（v2c/v3）

华为交换机 SNMP 配置全流程：snmp-agent 基础配置、v2c 团体名与 ACL 限制、v3 USM 用户认证加密、trap 上报源接口，以及网管平台对接失败的排查方法，适用于 S 系列与 CE 系列交换机。，含关键配置命令与常用验证步骤及排错要点。

admin 2026-10-05

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Arista EOS VXLAN Configuration: VTEP and Bridging

Build VXLAN bridging on Arista EOS: VTEP source interface, VNI-to-VLAN mapping, head-end replication, and the commands that catch a broken overlay.

admin 2026-10-05

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ArubaOS-CX MSTP Configuration and Verification

Step-by-step ArubaOS-CX MSTP: region name and revision, VLAN-to-instance mapping, deterministic root bridges, edge hardening and verification commands

admin 2026-10-05

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Dell OS10 VRF Configuration and Verification Guide

Configure VRF instances on Dell SmartFabric OS10: interface binding, per-VRF routing, controlled route leaking and the show commands that prove isolat

admin 2026-10-05

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Juniper SRX 安全区域与安全策略配置实战教程

从零讲清 Juniper SRX 安全区域（security-zone）、地址簿与安全策略的配置顺序，含 set 命令实例、host-inbound-traffic 放行、策略命中计数与 flow session 验证命令，以及策略不生效时的完整排查思路。

admin 2026-10-05

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