Operations 归档 - 夜莺博客

标签：Operations

node-problem-detector: Node Health the Cluster Can See

node-problem-detector: Node Health the Cluster Can See

Deploy node-problem-detector to surface kernel, kubelet and hardware problems as Kubernetes events, conditions and Prometheus metrics.

admin admin 2026-10-14
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Junos rollback and Configuration Revision Identifiers

Junos rollback and Configuration Revision Identifiers

Use Junos rollback with 50 stored commits plus Configuration Revision Identifiers: rollback 0-49, rescue config, compare and verification commands.

admin admin 2026-10-03
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BGP Prefix-Limit: Protect Routers from Route Table Blowups

BGP Prefix-Limit: Protect Routers from Route Table Blowups

Configure BGP prefix-limit to cap the routes a peer can send: warning thresholds, teardown behaviour and recovery, with Junos and Cisco examples.

admin admin 2026-09-30
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phpIPAM IP Address Management Deployment

phpIPAM IP Address Management Deployment

Deploy phpIPAM for IPAM: database setup, subnet and VLAN design, scanning and discovery, API automation and keeping subnets accurate.

admin admin 2026-09-26
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Uptime Kuma: Monitoring and Status Pages

Uptime Kuma: Monitoring and Status Pages

Deploy Uptime Kuma for service checks, certificate expiry and public status pages: Docker setup, monitor types, notifications and backup strategy.

admin admin 2026-09-26
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Tailscale Mesh VPN: WireGuard Without the Config

Tailscale Mesh VPN: WireGuard Without the Config

Tailscale builds a WireGuard mesh with ACLs, MagicDNS and subnet routers. Learn the topology, access control rules and the ops commands that matter.

admin admin 2026-09-26
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Cat6A Permanent Link Certification and TIA-568

Cat6A Permanent Link Certification and TIA-568

How to certify Cat6A copper cabling to ANSI/TIA-568: permanent link tests, insertion loss, NEXT, PS ACR-F, return loss and alien crosstalk explained.

admin admin 2026-09-26
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Junos commit confirmed: The Remote-Change Safety Net

Junos commit confirmed: The Remote-Change Safety Net

Use Junos commit confirmed and rollback correctly: automatic rollback timers, commit check, commit history labels and the mistakes that defeat the saf

admin admin 2026-09-21
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MLNX-OS Configuration Management: Save, Load, Rollback

MLNX-OS Configuration Management: Save, Load, Rollback

Manage MLNX-OS configurations safely: running vs startup config, saving to flash, backup to a remote host, loading a file and recovering from a bad ch

admin admin 2026-09-21
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Cisco IOS XE Install Mode Upgrade: add, activate, commit

Cisco IOS XE Install Mode Upgrade: add, activate, commit

Cisco IOS XE install mode upgrade: add, activate, commit, plus three-step change windows, stack and StackWise Virtual behaviour, rollback and failure

admin admin 2026-09-10
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