Aram Hăvărneanu 2018 8 31 2025 7 15 https://xw.is/001B/ 001B /001B/ Linux › Fedora Linux Post Install Steps Aram Hăvărneanu 2018 8 31 2025 7 15 Introduction Everything on this page needs to be done as root unless otherwise specified, so sudo(8) to root. sudo -i Aram Hăvărneanu 2018 8 31 2025 7 15 Cloud Init If your install uses cloud-init (e.g. Amazon EC2) do the following: Aram Hăvărneanu 2018 8 31 2025 7 15 Set hostname echo 'preserve_hostname: yes' >/etc/cloud/cloud.cfg.d/55-preseve-hostname.cfg echo 'eden.mgk.ro' >/etc/hostname reboot Aram Hăvărneanu 2018 8 31 2025 7 15 Enable IPv6 cat <<EOF >/etc/cloud/cloud.cfg.d/56-custom-networking.cfg network: version: 1 config: - type: physical name: eth0 subnets: - type: dhcp - type: dhcp6 EOF reboot Aram Hăvărneanu 2018 8 31 2025 7 15 Scaleway If you're on a braindead platform like Scaleway, you might also need to disable this: systemctl disable scw-set-hostname Aram Hăvărneanu 2018 8 31 2025 7 15 Update the software dnf -y upgrade-minimal reboot Aram Hăvărneanu 2018 8 31 2025 7 15 Create a user Create a user with a locked password that can then do passwordless sudo(8): useradd -c 'Aram Hăvărneanu' -G wheel,users -m -s /bin/bash -U aram passwd -l aram Enable passwordless sudo for the wheel group: /etc/sudoers.d/91-wheel-no-password]]> Aram Hăvărneanu 2018 8 31 2025 7 15 SSH For ssh(1) access, first use su(1) to switch from root to the user:su - aramAnd then populate the ssh keys: mkdir -p $HOME/.ssh chmod 700 $HOME/.ssh cat <<EOF >>$HOME/.ssh/authorized_keys EOF chmod 644 $HOME/.ssh/authorized_keys sort -u -o $HOME/.ssh/authorized_keys $HOME/.ssh/authorized_keys Aram Hăvărneanu 2018 8 31 2025 7 15 Enable NTP service If not already enabled, enable NTP: systemctl enable --now ntpd.service Aram Hăvărneanu 2018 8 31 2025 7 15 Install packages For home installations you might want to install avahi: dnf install nss-mdns avahi systemctl enable --now avahi-daemon.service For development systems you might want to install: dnf -y groupinstall 'Development Tools' dnf -y install rsync clang clang-tools-extra gcc-go golang References Context Backlinks Related https://xw.is/ssh.1 ssh.1 /ssh.1 ssh(1) Manual https://man.openbsd.org/ssh.1 OpenSSH remote login client. Aram Hăvărneanu 2025 7 15 https://xw.is/ssh-keys/ ssh-keys /ssh-keys/ OpenSSH › Public SSH Keys Aram Hăvărneanu 2025 7 15 SSH Keys Aram Hăvărneanu 2025 7 15 Authentication These are the public SSH keys that I use for authentication: Aram Hăvărneanu 2025 7 15 Signing These are the public SSH keys (in allowed_signers format) that I use for signing: aram@mgk.ro ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIMRc0UWKrFpCv/EOUo2jpEQt+C/pa0tc1rUWKgjbKTp7 aram@edengate.local Aram Hăvărneanu 2025 7 15 Install Run the following commands to populate ~/.ssh/authorized_keys (see ssh(1)), creating it with necessary permissions if required: mkdir -p $HOME/.ssh chmod 700 $HOME/.ssh cat <<EOF >>$HOME/.ssh/authorized_keys EOF chmod 644 $HOME/.ssh/authorized_keys sort -u -o $HOME/.ssh/authorized_keys $HOME/.ssh/authorized_keys These commands are idempotent and will preserve existing keys. Aram Hăvărneanu 2025 7 15 Macros This page exports the and macros. To use them from other pages import this page with . Contributions