https://www.sre.wang/categories/linux%E7%B3%BB%E7%BB%9F%E8%BF%90%E7%BB%B4/Recent content in Linux系统运维 on SRE工程实践Hugo -- gohugo.iozh-cnFri, 17 Jul 2026 09:20:09 +0800https://www.sre.wang/posts/linux-kernel-crash-kdump/Fri, 17 Jul 2026 09:20:09 +0800https://www.sre.wang/posts/linux-kernel-crash-kdump/从 kdump 原理到 crash 工具分析实战，手把手配置生产级内核崩溃捕获系统https://www.sre.wang/posts/linux-auditd-security-auditing/Wed, 15 Jul 2026 02:09:45 +0800https://www.sre.wang/posts/linux-auditd-security-auditing/从安装部署到规则编写、日志分析、性能调优，覆盖 auditd 在生产环境的完整实践https://www.sre.wang/posts/linux-network-packet-capture-analysis/Tue, 14 Jul 2026 00:39:00 +0800https://www.sre.wang/posts/linux-network-packet-capture-analysis/用 tcpdump 和 Wireshark 组合拳排查生产网络问题，覆盖过滤语法、抓包策略、协议解析和实战案例https://www.sre.wang/posts/linux-cpu-isolation-numa-tuning/Mon, 13 Jul 2026 03:22:07 +0800https://www.sre.wang/posts/linux-cpu-isolation-numa-tuning/从 isolcpus 到 cpuset、从 NUMA 亲和到中断绑核，生产级 CPU 隔离与调优全流程实战https://www.sre.wang/posts/postgresql-ha-setup/Thu, 16 Oct 2025 21:55:00 +0800https://www.sre.wang/posts/postgresql-ha-setup/PostgreSQL 高可用架构：Patroni 与 etcd 集群部署的学习笔记与实践总结https://www.sre.wang/posts/mysql-performance-optimization/Mon, 13 Oct 2025 18:17:00 +0800https://www.sre.wang/posts/mysql-performance-optimization/MySQL 性能优化：慢查询分析与索引调优实践的学习笔记与实践总结https://www.sre.wang/posts/redis-operation-maintenance/Mon, 15 Sep 2025 12:28:00 +0800https://www.sre.wang/posts/redis-operation-maintenance/Redis 运维实践：持久化、高可用与性能监控的学习笔记与实践总结https://www.sre.wang/posts/tls-ssl-certificate-management/Sun, 14 Sep 2025 17:26:00 +0800https://www.sre.wang/posts/tls-ssl-certificate-management/TLS/SSL 证书管理：从申请到自动续期的运维实践的学习笔记与实践总结https://www.sre.wang/posts/nginx-performance-tuning/Fri, 12 Sep 2025 19:44:00 +0800https://www.sre.wang/posts/nginx-performance-tuning/Nginx 性能调优：从配置到内核参数的完整实践的学习笔记与实践总结https://www.sre.wang/posts/linux-strace-debugging/Thu, 11 Sep 2025 12:45:00 +0800https://www.sre.wang/posts/linux-strace-debugging/Linux 系统调用追踪：strace 与 ltrace 调试实战的学习笔记与实践总结https://www.sre.wang/posts/linux-ebpf-programming-guide/Tue, 01 Apr 2025 00:00:00 +0000https://www.sre.wang/posts/linux-ebpf-programming-guide/详细梳理 eBPF 编程模型、BCC 与 libbpf+CO-RE 对比、BTF 机制、程序类型与实战开发流程https://www.sre.wang/posts/linux-iptables-nftables/Fri, 10 Jan 2025 00:00:00 +0000https://www.sre.wang/posts/linux-iptables-nftables/深入理解 Netfilter 框架、iptables 五链四表、nftables 优势、规则编写、NAT/端口转发、连接追踪及性能优化实战https://www.sre.wang/posts/linux-bpf-bcc-tools/Wed, 13 Nov 2024 00:00:00 +0000https://www.sre.wang/posts/linux-bpf-bcc-tools/从 eBPF 技术原理到 bcc 工具集实战，详解 biolatency、execsnoop、tcplife、opensnoop 等核心工具，并演示自定义 BPF trace 脚本编写https://www.sre.wang/posts/linux-cgroup-v2-complete-guide/Tue, 23 Jul 2024 00:00:00 +0000https://www.sre.wang/posts/linux-cgroup-v2-complete-guide/深入理解 cgroup v2 的统一层级架构、核心控制器原理、与 systemd 集成、Docker/Kubernetes 场景实践及 v1 迁移策略https://www.sre.wang/posts/linux-process-scheduling/Wed, 29 May 2024 00:00:00 +0000https://www.sre.wang/posts/linux-process-scheduling/深入理解 Linux CFS 调度器原理、nice 值与 cgroup CPU 控制、实时调度、CPU 亲和性及调度延迟排查实战https://www.sre.wang/posts/linux-memory-management-tuning/Thu, 09 May 2024 00:00:00 +0000https://www.sre.wang/posts/linux-memory-management-tuning/深入剖析 Linux 虚拟内存、Page Cache、Swap、OOM Killer、cgroup v2 内存限制及内存泄漏排查的完整实战指南https://www.sre.wang/posts/linux-network-stack-tuning/Tue, 07 May 2024 00:00:00 +0000https://www.sre.wang/posts/linux-network-stack-tuning/系统性讲解 Linux TCP/IP 协议栈调优，涵盖内核参数、conntrack 表、网卡中断绑定、RPS/RFS/XPS 和 TCP BBR 拥塞控制https://www.sre.wang/posts/linux-boot-process-grub/Fri, 03 May 2024 00:00:00 +0000https://www.sre.wang/posts/linux-boot-process-grub/从 BIOS/UEFI 到 GRUB2、initramfs、systemd 启动流程全解，涵盖 target/runlevel、服务依赖管理、启动性能优化及内核崩溃恢复https://www.sre.wang/posts/linux-package-management/Fri, 26 Apr 2024 00:00:00 +0000https://www.sre.wang/posts/linux-package-management/apt/dpkg 与 yum/dnf/rpm 体系全解，涵盖仓库管理、依赖解析、deb/rpm 包构建、版本锁定、离线安装及镜像源优化https://www.sre.wang/posts/linux-disk-io-diagnosis/Wed, 27 Mar 2024 00:00:00 +0000https://www.sre.wang/posts/linux-disk-io-diagnosis/详细梳理 Linux 磁盘 I/O 性能指标体系、诊断工具实战、I/O 调度器选择策略、SSD/HDD 优化差异，并附高 I/O wait 生产排查案例https://www.sre.wang/posts/linux-log-management-journalctl/Wed, 14 Feb 2024 00:00:00 +0000https://www.sre.wang/posts/linux-log-management-journalctl/journald 原理与配置、journalctl 查询技巧、logrotate 日志轮转、结构化日志、远程日志收集及日志分析实战https://www.sre.wang/posts/linux-systemd-deep-guide/Tue, 13 Feb 2024 00:00:00 +0000https://www.sre.wang/posts/linux-systemd-deep-guide/从 systemd 架构到 unit 文件深入分析，涵盖依赖管理、cgroup 资源控制、journalctl 日志管理和生产级 service 文件编写https://www.sre.wang/posts/linux-performance-profiling-tools/Fri, 19 Jan 2024 00:00:00 +0000https://www.sre.wang/posts/linux-performance-profiling-tools/从 top/htop/atop 到 perf/flamegraph，覆盖 CPU、内存、IO、网络性能诊断工具集及使用场景速查https://www.sre.wang/posts/linux-fs-filesystem-optimization/Mon, 01 Jan 2024 00:00:00 +0000https://www.sre.wang/posts/linux-fs-filesystem-optimization/ext4/xfs/btrfs/zfs 文件系统深度对比、挂载参数优化、IO 调度器选择、journal 模式、fsync 性能及 SSD/TRIM 调优实战https://www.sre.wang/posts/linux-kernel-parameters-tuning/Thu, 21 Dec 2023 00:00:00 +0000https://www.sre.wang/posts/linux-kernel-parameters-tuning/sysctl 体系全解，涵盖网络参数、文件描述符、内存参数、安全参数及生产环境调优模板与参数验证方法https://www.sre.wang/posts/linux-security-hardening-checklist/Mon, 18 Dec 2023 00:00:00 +0000https://www.sre.wang/posts/linux-security-hardening-checklist/详细梳理 Linux 安全加固全流程：最小化安装、SSH 加固、SELinux/AppArmor、auditd 审计、防火墙管理，并附可运行的安全基线检查脚本https://www.sre.wang/posts/linux-ssh-security-best-practices/Tue, 12 Dec 2023 00:00:00 +0000https://www.sre.wang/posts/linux-ssh-security-best-practices/SSH 密钥与证书认证、sshd_config 硬化、跳板机、端口转发与反向隧道、SSH Agent、审计日志及 Fail2ban 完整实践