Difference: InstallingCentOS7 (23 vs. 24)

Revision 2414 Oct 2021 - IvoVanGeel

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Installing CentOS 7

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Wait for the installation to finish.
Reboot the system.

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Add the EPEL repository by running: yum install epel-release

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Add the EPEL repository by running: yum install epel-release

Install the following packages:

yum install -y sysstat iotop strace tcpdump lsof ntp ntpdate man man-pages mlocate wget perl iptraf-ng bind-utils net-tools psmisc vim-enhanced rsync lynx

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Add the noatime option to all ext3/ext4/XFS/etc filesystem options in /etc/fstab

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Add the noatime option to all ext3/ext4/XFS/etc filesystem options in /etc/fstab

Edit /etc/default/grub and remove the rhgb and quiet options from GRUB_CMDLINE_LINUX. Replace these options with: nomodeset vga=normal consoleblank=0 (add elevator=deadline when running on an SSD or in a VM)
Create a new grub2 config file using: grub2-mkconfig > /boot/grub2/grub.cfg
Update the system: yum upgrade

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Add a normal user, to log in as: useradd -m username
Set a password: passwd username

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Add a normal user, to log in as: useradd -m username
Set a password: passwd username

Add the normal user to the wheel group: usermod -a -G wheel username
Make sure root cannot log in via ssh by changing /etc/ssh/sshd_config:
- PermitRootLogin prohibit-password

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