AI, big data, cloud computing, and networking.
This comprehensive guide explains the CIAA security model for network transmission, details confidentiality, integrity, authentication, and availability, and walks through building a private CA with OpenSSL, configuring TLS 1.2/1.3, HTTPS authentication modes, SNI/ESNI extensions, and upgrading curl for HTTP/2 support.
This article explains the Netfilter traffic‑processing framework built into the Linux kernel, its implementation with hook points and chains, the core concepts of rules, chains and tables, and provides a comprehensive guide to using the iptables command‑line tool for firewall configuration, NAT, SNAT, DNAT and practical examples.
This tutorial walks through the complete process of preparing three CentOS 7 nodes, installing ceph‑deploy, configuring storage and network topology, and sequentially deploying monitors, managers, OSDs, MDS, RGW, enabling the Ceph dashboard, performing verification tests, and finally uninstalling the cluster.
This guide walks through a full manual installation of OpenStack Rocky on a two‑node (controller + compute) environment, covering architecture diagrams, network design choices, core services configuration (DNS, NTP, MySQL, RabbitMQ, Memcached, Etcd), and detailed setup of Keystone, Glance, Nova, Neutron, Horizon and Cinder with all required commands, config files and verification steps.
This guide explains the performance limitations of Neutron OVS networking, introduces SR‑IOV as a high‑performance I/O virtualization solution, and provides step‑by‑step configuration for enabling SR‑IOV agents, mapping physical networks, creating VLAN and flat networks, handling NUMA affinity, security groups, and bonding, with detailed command examples and XML snippets.
This article explains the complete OpenStack Neutron OVS networking stack, covering compute‑node, network‑node and control‑node models, dual‑node deployment, flow‑table design for flat, VLAN and VxLAN networks, L3 routing, external network integration and practical CLI examples.
This article provides a comprehensive guide to VxLAN technology, covering its architecture, tunneling mechanisms, NVE/VTEP roles, L2/L3 gateway designs, MTU considerations, and the integration of EVPN MP‑BGP with detailed explanations of route types and deployment scenarios.
This article provides a comprehensive guide to OpenStack Neutron, covering its VPC virtual network model, network resource types, isolation methods, configuration examples for flat, VLAN, and VxLAN networks, as well as detailed instructions for creating subnets, ports, routers, and floating IPs with code snippets.
This comprehensive guide explains Libvirt’s architecture, installation, network configurations, bridge and NAT modes, optional Open vSwitch usage, and detailed steps for KVM live migration, providing command‑line examples and XML snippets for effective virtualization management.
This guide walks through Open vSwitch fundamentals, covering version and log management, controller and bridge configuration, flow table manipulation, VLAN, QoS, tunneling, sFlow, STP, port mirroring, aggregation, group and meter tables, and practical SDN application examples such as building virtual topologies and packet redirection.
