Reorganise SSH scripts

Author: Mäki Mika

LICENSE

@@ -1,6 +1,6 @@
 MIT License
 
-Copyright (c) 2017-2024 Mika Mäki
+Copyright (c) 2017-2025 Mika Mäki
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

ssh/setup_ssh.sh

@@ -23,12 +23,4 @@ else
   ln -s "${CONF_DIR}" "${SSH_DIR}"
 fi
 
-echo "Disabling password login."
-sudo sed -i "s@#PasswordAuthentication yes@PasswordAuthentication no@g" "/etc/ssh/sshd_config"
-sudo systemctl restart ssh
-
-echo "Creating UFW firewall rule and enabling UFW."
-sudo ufw allow ssh comment SSH
-sudo ufw enable
-
 echo "SSH configured."

ssh/setup_ssh_server.sh

@@ -0,0 +1,19 @@
+#!/usr/bin/env bash
+set -eu
+
+if [ "${EUID}" -ne 0 ]; then
+   echo "This script should be run as root."
+   exit 1
+fi
+
+echo "Disabling password login."
+sed -i "s@#PasswordAuthentication yes@PasswordAuthentication no@g" "/etc/ssh/sshd_config"
+systemctl restart ssh
+
+if command -v &> /dev/null; then
+  echo "Creating UFW firewall rule and enabling UFW."
+  ufw allow ssh comment SSH
+  ufw enable
+else
+  echo "UFW was not found."
+fi

security/ssh-keygen.sh renamed to ssh/ssh-keygen.sh

@@ -1,4 +1,5 @@
-#!/usr/bin/sh -e
+#!/usr/bin/env sh
+set -eu
 
 # This script is trivial and mostly a note for myself.
 # As of 2021, the default key length of ssh-keygen is 3072 bits, but