Notes for basic setup of a minimal Linux installation

linux-minimal-setup-notes.md

Linux Minimal Setup Notes

Configure Network

1. nmcli d - this will list the attached network devices.
2. nmtui - this is an interactive method to configire network.

Configure SSH Keys

1. Generate keys for instance ssh-keygen -t rsa -b 4096 -N "" -f ./server-key
2. Move public key to server cat ./server-key.pub | ssh username@remote_host "mkdir -p ~/.ssh && chmod 700 ~/.ssh && cat >> ~/.ssh/authorized_keys && chmod 600 ~/.ssh/authorized_keys"
3. Set PasswordAuthentication no in /etc/ssh/sshd_config to disable password authentication

ExFAT Type Support

CentOS 7 (epel-release is only available for 64-bit)

1. Install epel-release - https://www.cyberciti.biz/faq/installing-rhel-epel-repo-on-centos-redhat-7-x/
2. yum install -y http://li.nux.ro/download/nux/dextop/el7/x86_64/nux-dextop-release-0-5.el7.nux.noarch.rpm
3. yum install -y exfat-utils fuse-exfat

Debian

1. apt-get install exfat-fuse exfat-utils

Disable Lpatop Lid Suspension

1. Edit /etc/systemd/logind.conf and make sure HandleLidSwitch=ignore
2. systemctl restart systemd-logind

Auto Mount External Drive

1. Use fdisk -l to get device details
2. Add the following to /etc/fstab - /dev/sdb1 /opt/nfs-exports/buffalo exfat defaults 0 2

Update CentOS 7 Kernel to latest

1. rpm --import http://www.elrepo.org/RPM-GPG-KEY-elrepo.org
2. rpm -Uvh http://www.elrepo.org/elrepo-release-7.0-3.el7.elrepo.noarch.rpm
3. yum --enablerepo=elrepo-kernel install kernel-ml -y
4. Set GRUB_DEFAULT=0 in /etc/default/grub
5. For UEFI - grub2-mkconfig -o /boot/efi/EFI/centos/grub.cfg