LOG 归档 - 第48页共139页

Cisco MDS Fibre Channel Zoning and VSAN Configuration

Configure Cisco MDS VSANs, pWWN zones, zonesets and fcaliases, activate them safely, and verify SAN zoning with flogi, zone active and zoneset command

admin 2026-09-22

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PIM-SM SPT Switchover Threshold Configuration

Understand PIM-SM RPT to SPT switchover, when to stay on the shared tree with spt-threshold infinity, and how to tune the threshold on Cisco, Huawei a

admin 2026-09-22

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BGP FlowSpec Configuration for DDoS Filtering

Deploy BGP FlowSpec for surgical DDoS filtering: NLRI match components, drop and rate-limit actions, IOS XR policy configuration and ExaBGP rule injec

admin 2026-09-22

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BGP RTBH: Remotely Triggered Blackhole Configuration

Configure BGP remotely triggered blackhole filtering: trigger and edge router examples, blackhole communities, and source-based RTBH for DDoS mitigati

admin 2026-09-22

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MPLS L3VPN Route Distinguisher and Route Target Design

How MPLS L3VPN route distinguishers and route targets differ, with IOS XR and Junos configuration examples plus verification commands for VRF import a

admin 2026-09-22

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ONTAP Disk Commands: Adding, Replacing and Zeroing Disks

Manage ONTAP disks safely: disk show and broken disk checks, spare planning, aggregate add-disks, disk replacement, zeroing and post-change verificati

admin 2026-09-21

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Kubernetes 节点 NotReady 排障：从 kubelet 到 CNI

Kubernetes 节点 NotReady 排障实战：从 kubelet 状态、容器运行时到 CNI 网络插件的完整排查链路，涵盖节点污点与驱逐、kube-proxy 与 iptables 规则、磁盘压力与内存压力判定，以及恢复节点重新调度的验证步骤。

admin 2026-09-21

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Ubuntu netplan 配置：bond、bridge 与 VLAN 实战

Ubuntu netplan 实战配置：bond 链路聚合、bridge 网桥与 VLAN 子接口的 YAML 写法与验证方法，涵盖 netplan try 回滚机制、bond 模式与 LACP 参数、bridge 与 VLAN 的嵌套顺序，以及常见配置错误与排错思路。

admin 2026-09-21

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OpenVPN Server on Linux: A Hardened Setup Guide

Set up an OpenVPN server on Linux with PKI, TLS settings, client routing options, and the hardening and troubleshooting steps that matter in productio

admin 2026-09-21

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nmap Network Discovery: Safe Scanning for Sysadmins

Use nmap safely in production: host discovery, TCP and UDP port scanning techniques, service and OS detection, timing templates and scan etiquette.

admin 2026-09-21

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