Red Hat Certified System Administrator 8 (RHCSA)
I’m a software engineer not a sysadmin. In fact I know I’m a bad one. The RHCSA is a rote, mechanical process. It did force me to discover discover several gaps in my GNU/Linux knowledge so overall happy about that. Essential Tools Documentation man /usr/share/doc RPM bundled documentation General Searching Techniques Shell history Globbing I/O Redirection and Pipes Essential File Management Linux file system layout Finding Files locate find Archiving and compression with tar Hard and Soft Links Working with text Regular expressions grep sed and awk Connecting a Linux host Consoles Terminals and TTYs Switch Users (su) sudo SSH Managing users and groups Creating users User properties User configuration files Creating and managing groups Managing password properties Managing Permissions Changing file ownership Managing basic permissions Understanding umask (user mask) Special permissions suid sgid Sticky bit Understanding ACLs Configuring Networking Network device naming Managing runtime network configuration with ip Storing network configuration persistently nmcli Routing and DNS Managing Processes Shell jobs ps Memory usage CPU load System activity with top Sending signals to processes Priority and niceness tuned profiles Managing Software RPM and yum rpm queries yum Groups Repositories Modules and Application Streams Red Hat Subscription Manager Systemd Scheduling Tasks cron at systemd Timers tmpfiles.d Logging Rsyslog Systemd Journal Logrotate Managing Storage Disk layout Creating partitions GPT partitions with parted MBR partitions with fdisk File System Choices XFS Ext4 Mounting Persistent block device naming systemd mounts Swap Advanced Storage LVM Stratis VDO LUKS Advanced tasks Kernel management Boot procedure GRUB Systemd targets Essential troubleshooting Changing root password Managing network services SSH httpd (apache) SELinux Context Labels Booleans File context labels SELinux logs SELinux troubleshooting Firewalling with firewalld Automating installs Time services Remote file systems NFS CIFS with Samba Automount Containers Autostarting non-root containers with systemd user units Dont forget list Exam shakedown Linux Gems Essential Tools Documentation The ability to understand a program using local documentation resources; man, info, /usr/share/doc, within the RPM package. ...