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mkdocs/docs/notes/linux.md

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+# Linux Setup
+
+## Brief
+
+some setup guides
+
+- by `rskntroot` on `2025-02-20`
+
+## Preferences
+
+### SSH
+
+- see [K4YT3X's Hardened OpenSSH Server Configuration](https://github.com/k4yt3x/sshd_config)
+
+``` bash
+sudo -i
+```
+
+``` bash
+cd /etc/ssh/
+mv sshd_config sshd_config.backup
+curl https://raw.githubusercontent.com/k4yt3x/sshd_config/master/sshd_config -o ./sshd_config
+chmod 644 /etc/ssh/sshd_config
+cat <<%% >> /etc/ssh/sshd_config
+# Enable Public Key Auth
+PubkeyAuthentication yes
+AuthorizedKeysFile .ssh/authorized_keys
+%%
+systemctl restart ssh
+exit
+```
+
+### Auth
+
+=== "Existing Key"
+
+    ``` bash
+    key="ecdsa-sha2-nistp256 ASASDASDFsomekey user@whatever"
+    ```
+
+    ``` bash
+    mkdir -p ~/.ssh && echo ${key} >> ~/.ssh/authorized_keys
+    ```
+
+=== "New Key"
+
+    ``` bash
+    ssh-keygen -t ecdsa
+    cat id_ecdsa.pub >> ~/.ssh/authorized_keys
+    ```
+
+### Docker
+
+- see [https://docs.docker.com/engine/install/ubuntu/](https://docs.docker.com/engine/install/ubuntu/)
+
+``` bash
+curl -fsSL https://get.docker.com -o get-docker.sh
+sudo sh ./get-docker.sh
+sudo systemctl enable --now docker
+rm -f ./get-docker.sh
+sudo usermod -a -G docker $(whoami)
+docker ps
+```
+
+- see [https://docs.docker.com/config/completion/](https://docs.docker.com/config/completion/)
+
+=== "Debian"
+
+    ``` bash
+    sudo apt install bash-completion -y
+    ```
+
+=== "Fedora"
+
+    ``` bash
+    sudo dnf install bash-completion -y
+    ```
+
+``` bash
+cat <<%% >> ~/.bashrc
+if [ -f /etc/bash_completion ]; then
+    . /etc/bash_completion
+fi
+%%
+mkdir -p ~/.local/share/bash-completion/completions
+docker completion bash > ~/.local/share/bash-completion/completions/docker
+source ~/.bashrc
+```
+
+### Tools
+
+=== "Debian"
+
+    ``` bash
+    sudo apt install -y \
+      curl \
+      htop \
+      iputils-ping \
+      jq \
+      tcpdump \
+      traceroute \
+      vim
+    ```
+
+=== "Fedora"
+
+    ``` bash
+    sudo dnf install -y \
+      htop \
+      sensors
+    ```
+
+### Shortcuts
+
+#### fastfetch
+
+- see [fastfetch](https://github.com/fastfetch-cli/fastfetch) for more info
+
+=== "Debian"
+
+    ``` bash
+    url="https://github.com/fastfetch-cli/fastfetch/releases/download/2.45.0/fastfetch-linux-aarch64.deb"
+    ```
+
+    ``` bash
+    mkdir -p ~/downloads/ && cd ~/downloads
+    curl -fsSLO ${url} -o fastfetch-installer
+    sudo dpkg -i ./fastfetch-installer
+    ```
+
+=== "Fedora"
+
+    ``` bash
+    url="https://github.com/fastfetch-cli/fastfetch/releases/download/2.45.0/fastfetch-linux-amd64.rpm"
+    ```
+
+    ``` bash
+    mkdir -p ~/downloads/ && cd ~/downloads
+    curl -fsSLO ${url} -o fastfetch-installer
+    sudo dnf install ./fastfetch-installer
+    ```
+
+``` bash
+cat <<%% >> ~/.bashrc
+# RSKIO
+alias ff="fastfetch"
+alias q="exit"
+%%
+source ~/.bashrc
+```