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lib/security.sh

@@ -0,0 +1,37 @@
+#!/bin/bash
+
+# Security configuration script
+
+secure_shared_memory() {
+    log_info "Securing shared memory..."
+    handle_error sudo cp /etc/fstab /etc/fstab.bak
+    echo "tmpfs /run/shm tmpfs defaults,noexec,nosuid 0 0" | sudo tee -a /etc/fstab
+    handle_error sudo mount -o remount /run/shm
+    log_info "Shared memory secured."
+}
+
+install_fail2ban() {
+    log_info "Installing Fail2Ban..."
+    case $DISTRO in
+        ubuntu|debian)
+            handle_error sudo apt-get update
+            handle_error sudo apt-get install -y fail2ban
+            ;;
+        fedora)
+            handle_error sudo dnf install -y fail2ban
+            ;;
+        arch)
+            handle_error sudo pacman -S --noconfirm fail2ban
+            ;;
+        opensuse)
+            handle_error sudo zypper install -y fail2ban
+            ;;
+        *)
+            log_error "Unsupported Linux distribution: $DISTRO"
+            exit 1
+            ;;
+    esac
+    handle_error sudo systemctl enable fail2ban
+    handle_error sudo systemctl start fail2ban
+    log_info "Fail2Ban installation completed."
+}