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所在平台: Udemy |
课程主页: https://www.udemy.com/course/linux-diagnostics-and-troubleshooting/
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课程名称：Linux 诊断与故障排除 课程概述： 本课程专为有意深入故障排除的高级系统管理员设计。每个部分都配有不同的测验，同时还包含多个项目实验作业，以帮助学员展示所学内容。 课程内容： 1. **引言**：了解故障排除的基本概念。 2. **信息收集**： - 故障排除登录问题 - 系统日志与网站服务器问题的故障排除 - 使用 SOSREPORT 收集信息 - 实践实验：故障排除 FTP 连接问题 3. **系统监控**： - Cockpit 监控系统 - 性能协同（PCP）与集中式日志服务器 - 实践实验：使用入侵检测软件监控系统变化（AIDE） - 系统审计（auditd） 4. **识别硬件问题**： - 硬件错误报告（mcelog 和 rasdaemon） - 使用 memtest86+ 进行内存测试 - 管理内核模块 5. **存储问题故障排除**： - Linux 存储堆栈概述 - 文件系统修复与 LVM 问题恢复 - 实践实验：iSCSI 目标与发起者的配置 6. **RPM 问题故障排除**： - 解决软件包管理依赖问题 - 恢复损坏的 RPM 数据库 7. **网络问题故障排除**： - 检查网络连接和流量监控 - 使用 tcpdump 捕获数据包 8. **启动问题故障排除**： - Linux 启动过程与 Grub2 的使用 - 基本系统恢复实验 9. **安全问题故障排除**： - SELinux 及其上下文调整 - PAM 安全概述与配置 课程配备多个测验和实践实验，以增强学习效果和技能应用。通过这些内容，学员将掌握在 Linux 环境中诊断和解决常见问题的能力。
Senior system administrators who are interested in troubleshooting more are the target audience for this course.Every section of this course has a different set of quizzes, and there is also many project lab assignment that will help you demonstrate what you have learned.Linux Diagnostics And TroubleshootingCourse ContentIntroductionWhat is troubleshooting?Troubleshooting a login issueCollecting InformationSystem JournalTroubleshoot a web server issue using the log filesUsing Red Hat ResourcesCollecting Information with SOSREPORTPractice Lab SessionTroubleshoot a FTP Connectivity IssueQuiz - MCQMonitoring SystemsSystem Monitoring with CockpitPerformance Co-Pilot or pcpCentralized log server using rsyslogPractice Lab SessionIntrusion detection software to monitor changesAdvanced Intrusion Detection Environment (AIDE)Practice Lab SessionSystem Auditing with auditdQuiz - MCQIdentifying Hardware IssuesIdentify various hardware and their problemsHardware Error Reporting using mcelog and rasdaemonMemory Testing using memtest86+ packageManaging Kernel ModulesLoading and unloading modulesManaging module optionsTroubleshooting to disable MSI-X interrupt handling in the driverQuiz - MCQTroubleshooting Storage IssuesOverview of Linux Storage StackVirtual File SystemFilesystems & Device ManagerDevice Mapper MultipathRecovering from File System CorruptionChecking & Repairing ext3/ext4 fs using e2fsckChecking & Repairing xfs fs using xfs_repairRecovering LVM IssuesPractice Lab Session - using vgcfgrestoreMigrating a Volume Group from one system to anotherRecovering Metadata in LVMPractice Lab SessionConfiguration of Iscsi target & InitiatorPractice Lab Session on iscsi target & initiator - 1Practice Lab Session on iscsi target & initiator - 2Quiz - MCQTroubleshooting RPM IssuesResolve package management dependency issuesIdentify & fix dependency issueRecover a corrupted RPM DatabaseWorking with transaction history using Yum commandReverting & repeating transaction using yum commandPractice Lab SessionQuiz - MCQTroubleshooting a Network IssuesCheck Network ConnectivityScanning Network Ports using nmapCommunicating with a remote service using nc commandMonitoring Network traffic using iptraf-ngTroubleshooting a network issue (One network interface is not working properly)Troubleshooting tips related with device names of ethernet interfaceDisable consistent network device namingOverview NetworkManagerPractice Lab SessionCapturing Packets with tcpdumpPractice Lab SessionsQuiz - MCQTroubleshooting a Boot IssuesLinux Boot processBooting of RHEL 7 with systemdOverview of Grub2Grub2 featuresBooting into Grub MenuProtect Grub by appying a passwordLab on Basic System Recovery (Initramfs file missing/Corrupted)Lab on Basic System Recovery (Grub related issues like grub is missing)Lab on Basic System Recovery (Master Boot Record missing/corrupted)Rescue Modue in RHEL 7Practice Lab SessionReset the root passwd using installation diskReset the root passwd using rd.breakRepairing File System Issues at bootFix issues at /etc/fstab at boot - Lab SessionAssignment - This lab project assignment aims to explore some common Red Hat Linux boot issues and provide solutions to resolve them.Troubleshooting a Security IssuesTroubleshooting a SELinux IssueChanging SELinux contexttroubleshooting ftp connectivity issue using booleansSELinux Audit Logs & TroubleshootingOverview of PAM SecurityConcepts of PAMPAM Modules & ConfigurationsPAM Module GroupsControl Flags in PAMPAM Moduleslast lecture
