feat: add nosudo

2026-06-25 10:46:07 +08:00
parent 0e7fe55474
commit e8aae9738b
9 changed files with 358 additions and 55 deletions
@@ -0,0 +1,76 @@
+#!/bin/bash
+
+# 用法:
+#   ./dns-clean.sh    # 清理 macOS / Linux 系统 DNS 缓存
+
+set -e
+
+SUDO=""
+[ "$(id -u)" -ne 0 ] && SUDO="sudo"
+
+flush_macos() {
+    echo "macOS: 清理 DNS 缓存..."
+    $SUDO dscacheutil -flushcache
+    $SUDO killall -HUP mDNSResponder 2>/dev/null || true
+    $SUDO killall mDNSResponderHelper 2>/dev/null || true
+    echo "macOS DNS 缓存已清理"
+}
+
+flush_linux() {
+    local flushed=0
+
+    echo "Linux: 清理 DNS 缓存..."
+
+    if command -v resolvectl &>/dev/null; then
+        if $SUDO resolvectl flush-caches 2>/dev/null; then
+            echo "  - systemd-resolved (resolvectl) 缓存已清理"
+            flushed=1
+        fi
+    elif command -v systemd-resolve &>/dev/null; then
+        if $SUDO systemd-resolve --flush-caches 2>/dev/null; then
+            echo "  - systemd-resolved (systemd-resolve) 缓存已清理"
+            flushed=1
+        fi
+    fi
+
+    if command -v systemctl &>/dev/null; then
+        if systemctl is-active --quiet nscd 2>/dev/null; then
+            $SUDO systemctl restart nscd
+            echo "  - nscd 已重启"
+            flushed=1
+        fi
+
+        if systemctl is-active --quiet dnsmasq 2>/dev/null; then
+            $SUDO systemctl restart dnsmasq
+            echo "  - dnsmasq 已重启"
+            flushed=1
+        fi
+
+        if systemctl is-active --quiet unbound 2>/dev/null; then
+            if command -v rndc &>/dev/null; then
+                $SUDO rndc flush 2>/dev/null && echo "  - unbound 缓存已清理" && flushed=1
+            else
+                $SUDO systemctl restart unbound
+                echo "  - unbound 已重启"
+                flushed=1
+            fi
+        fi
+    fi
+
+    if [ "$flushed" -eq 0 ]; then
+        echo "未检测到常见 DNS 缓存服务 (systemd-resolved / nscd / dnsmasq / unbound)"
+        echo "若仍有问题，可尝试重启 NetworkManager 或检查本地 DNS 配置"
+        exit 1
+    fi
+
+    echo "Linux DNS 缓存已清理"
+}
+
+case "$(uname -s)" in
+    Darwin) flush_macos ;;
+    Linux)  flush_linux ;;
+    *)
+        echo "错误: 不支持的操作系统: $(uname -s)"
+        exit 1
+        ;;
+esac