LOG 归档 - 第39页共139页

PgBouncer Connection Pooling for PostgreSQL

Pool PostgreSQL connections with PgBouncer: session, transaction and statement modes, sizing pools against max_connections, and prepared-statement fix

admin 2026-09-25

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MariaDB Galera Cluster: Three-Node Setup and Verification

Build a three-node MariaDB Galera Cluster: wsrep configuration, SST, the bootstrap rule that prevents split-brain, and the status variables to watch.

admin 2026-09-25

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Netdata: Installation and Real-Time Node Monitoring

Install the Netdata agent, tune retention and memory, add custom health alerts and centralise many nodes with Netdata Cloud or a parent node.

admin 2026-09-25

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OPNsense VLAN Interfaces and Firewall Rule Processing

Create VLAN interfaces on OPNsense, assign them, and understand the floating, group and interface rule hierarchy so your firewall rules actually apply

admin 2026-09-25

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Traefik Reverse Proxy with Automatic Let's Encrypt TLS

Run Traefik as a Docker reverse proxy with automatic ACME certificates: entrypoints, routers, middlewares, HTTP-to-HTTPS redirects and certificate sto

admin 2026-09-25

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K3s Lightweight Kubernetes: Single-Node and HA Install

Install K3s as a single-node cluster or a multi-server HA cluster, with the flags, storage options and troubleshooting steps that matter in production

admin 2026-09-25

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Docker Swarm Overlay Networking and Service Deployment

Build a Docker Swarm cluster, create overlay networks, publish services and understand ingress, VIP load balancing and the ports Swarm actually needs

admin 2026-09-25

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Cisco Catalyst Center Plug and Play Device Onboarding

Onboard factory-fresh switches into Cisco Catalyst Center with Plug and Play: PnP startup VLAN, DHCP option 43, DNS discovery and the phone-home fallb

admin 2026-09-25

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Prometheus snmp_exporter: Monitoring Switches and Routers

Poll network devices with Prometheus via snmp_exporter: generate snmp.yml from MIBs, scrape many devices with one exporter, and write alerts that matt

admin 2026-09-25

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SNMP Graphing with Telegraf, InfluxDB and Grafana

Build a TIG stack for SNMP: Telegraf polling interface counters into InfluxDB with Grafana dashboards and Flux queries that turn counters into bandwid

admin 2026-09-25

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