- Red Hat - has RPM, red hat package manager.
- Whereas, debian has .deb files.
- Red Hat Consists of:
- Fedora - Most latest updates of RHEL
- CentOS Stream - Pushes update after Fedora
- RHEL (Paid) or AlmaLinux(free) or RockyLinux(free) - Most up to date
- Ubuntu
- Owned by canonical
- Suse Linux = it also has RPM and is similar to other OS, used by SAP.
- Mandrake Linux = not actively maintained
- Kali Linux = used by the ethical hackers, comes with the tools installed
- Debian is more stable than Fedora due to community support
- Suse, consists of lot of commercial programs but it also has free version and is known as opensuse
- suse linux enterprise server - when bugs are reported in opensuse, it is pushed into suse linux enterprise
- Linux architecture:
- Shell interacts with kernel, and kernel interacts with the hardware
- Console is called zero terminal
- remote session - SSH for Linux, RDP for Windows
- Linux always requires mounting, e.g usb device, if inserted needs to be mounted using "mount" command.
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