[{"data":1,"prerenderedAt":277},["ShallowReactive",2],{"blog-article-\u002Fzh\u002Fblog\u002Fflush-dns-mac":3},{"id":4,"title":5,"author":6,"body":7,"category":258,"cover":259,"coverAlt":260,"description":261,"draft":262,"extension":263,"meta":264,"navigation":265,"path":266,"publishedAt":267,"seo":268,"stem":269,"tags":270,"topics":273,"translationKey":275,"updatedAt":267,"__hash__":276},"articles_zh\u002Fzh\u002Fblog\u002Fflush-dns-mac.md","如何清除 Mac 的 DNS 缓存","Harry",{"type":8,"value":9,"toc":251},"minimark",[10,14,31,42,47,50,53,82,89,96,100,103,106,116,119,122,125,136,178,181,189,193,196,233,236,247],[11,12,13],"p",{},"Wi-Fi 已经连上，其他网站也能打开，偏偏某个网站一直提示“找不到服务器”；或者网站已经迁移到新服务器，Mac 上的访问仍然异常。这时，可以检查是否与本地保存的 DNS 记录有关。",[11,15,16,21,22,26,27,30],{},[17,18,20],"a",{"href":19},"\u002Fzh","MangoDisk"," 支持",[23,24,25],"strong",{},"刷新 DNS 缓存","。在",[23,28,29],{},"系统维护","中找到这个项目，确认并授权后就能执行，省去查找和输入终端命令的步骤。它适合处理本机记住旧解析结果的情况，执行后可以重新访问原来打不开的网站，检查是否恢复。",[11,32,33],{},[34,35],"img",{"alt":36,"decoding":37,"height":38,"loading":39,"src":40,"width":41},"MangoDisk 的 macOS 系统维护界面，底部显示“刷新 DNS 缓存”和执行按钮","async",1590,"lazy","https:\u002F\u002Fassets.mangodisk.app\u002Fimages\u002Fscreenshots\u002Fzh\u002Flight-08-system-maintenance.jpg",2372,[43,44,46],"h2",{"id":45},"用-mangodisk-清除-mac-的-dns-缓存","用 MangoDisk 清除 Mac 的 DNS 缓存",[11,48,49],{},"先确认网址没有拼错，再打开一个平时常用的网站，看看基本网络连接是否正常。如果 Wi-Fi 尚未连接，或所有应用都无法联网，应先处理网络连接问题。",[11,51,52],{},"准备执行前，保存网页里尚未提交的内容，然后按下面的步骤操作：",[54,55,56,63,73,76,79],"ol",{},[57,58,59,60,62],"li",{},"打开 MangoDisk，在左侧选择",[23,61,29],{},"，等待检查完成。",[57,64,65,66,68,69,72],{},"找到",[23,67,25],{},"，点击右侧的",[23,70,71],{},"执行","。",[57,74,75],{},"阅读确认提示，确认执行这一项维护。",[57,77,78],{},"按 macOS 提示完成管理员授权，等待任务反馈。",[57,80,81],{},"任务结束后，重新访问之前打不开的网址，查看结果。",[11,83,84,85,72],{},"系统维护的检查只读取状态；刷新缓存需要你单独执行，列表里的其他维护项目不会一起运行。更多界面说明见 ",[17,86,88],{"href":87},"\u002Fzh\u002Fdocs\u002Ffeatures\u002Fsystem-maintenance","MangoDisk 系统维护指南",[11,90,91,92,95],{},"如果没有授权，或执行时出现错误，先查看具体提示。",[23,93,94],{},"任务执行完成与网站恢复访问是两件事","，最终应以重新打开同一个网址的结果为准。",[43,97,99],{"id":98},"清除-dns-缓存会改变什么","清除 DNS 缓存会改变什么？",[11,101,102],{},"DNS 帮助 Mac 根据网站名称找到对应的网络地址。系统会暂时记住查询结果，减少重复查询；但当保存的结果已经过时，就可能继续使用旧地址。",[11,104,105],{},"清除本地 DNS 缓存后，后续查询可以重新获取结果。它不会把你设置的 DNS 服务器改成另一个，也不会删除浏览器里保存的密码、书签或登录 Cookie。",[11,107,108,109,115],{},"如果你想更换 DNS 服务器，需要在网络设置中另行操作，可以参考 ",[17,110,114],{"href":111,"rel":112},"https:\u002F\u002Fsupport.apple.com\u002Fzh-cn\u002Fguide\u002Fmac-help\u002Fmh14127\u002Fmac",[113],"nofollow","Apple 的 DNS 设置说明","。公司或学校管理的网络应按管理员提供的设置使用。",[11,117,118],{},"这项操作主要用于排查特定解析问题。网络正常时，无需每天刷新；它也不会提高宽带套餐的速度，或修复网站服务器本身的故障。",[43,120,121],{"id":121},"也可以通过终端手动清除",[11,123,124],{},"如果你习惯使用终端，在 macOS Sequoia、Tahoe 等较新的系统上，也可以手动执行以下操作：",[54,126,127,133],{},[57,128,129,130,72],{},"打开",[23,131,132],{},"应用程序 → 实用工具 → 终端",[57,134,135],{},"输入下面的命令并按回车。它会刷新本机相关缓存，不会修改 DNS 服务器设置：",[137,138,143],"pre",{"className":139,"code":140,"language":141,"meta":142,"style":142},"language-sh shiki shiki-themes github-light github-dark","sudo dscacheutil -flushcache; sudo killall -HUP mDNSResponder\n","sh","",[144,145,146],"code",{"__ignoreMap":142},[147,148,151,155,159,163,167,169,172,175],"span",{"class":149,"line":150},"line",1,[147,152,154],{"class":153},"sScJk","sudo",[147,156,158],{"class":157},"sZZnC"," dscacheutil",[147,160,162],{"class":161},"sj4cs"," -flushcache",[147,164,166],{"class":165},"sVt8B","; ",[147,168,154],{"class":153},[147,170,171],{"class":157}," killall",[147,173,174],{"class":161}," -HUP",[147,176,177],{"class":157}," mDNSResponder\n",[11,179,180],{},"按提示输入管理员密码，再按回车。输入密码时，终端不会显示字符或星号。",[11,182,183,184],{},"成功执行时，终端通常没有额外的成功提示，会回到可输入命令的状态。如果出现报错，应先阅读报错；没有看到成功文字，不代表需要反复执行。随后重新访问原来的网站即可。",[17,185,188],{"href":186,"rel":187},"https:\u002F\u002Fwww.namecheap.com\u002Fsupport\u002Fknowledgebase\u002Farticle.aspx\u002F397\u002F2194\u002Fhow-to-clear-local-dns-cache\u002F",[113],"Namecheap 的 macOS 操作说明",[43,190,192],{"id":191},"清除-dns-缓存后网站还是打不开怎么办","清除 DNS 缓存后，网站还是打不开怎么办？",[11,194,195],{},"先继续测试同一个网址，再根据现象缩小范围：",[197,198,199,210,216,227],"ul",{},[57,200,201,204,205,209],{},[23,202,203],{},"只有一个浏览器打不开","：换另一个浏览器，或用无痕窗口测试。如果表现不同，继续检查该浏览器的扩展、网站数据或缓存。确实需要处理应用缓存时，再参考",[17,206,208],{"href":207},"\u002Fzh\u002Fblog\u002Fclear-cache-on-mac","如何清理 Mac 缓存","，并留意不同清理项的影响。",[57,211,212,215],{},[23,213,214],{},"同一网络下的其他设备也打不开","：检查网站自身状态、路由器或网络服务商。这个现象不能只归因于当前 Mac 的本地缓存。",[57,217,218,221,222],{},[23,219,220],{},"刚修改过网站的 DNS 记录","：本机之外的 DNS 服务也可能仍缓存着旧结果。刷新 Mac 并不能清除上游缓存，因此不一定立即生效。",[17,223,226],{"href":224,"rel":225},"https:\u002F\u002Fdevelopers.cloudflare.com\u002Fdns\u002Ftroubleshooting\u002Fdns-issues\u002F",[113],"Cloudflare 关于 DNS 缓存与更新的说明",[57,228,229,232],{},[23,230,231],{},"只有公司内网或连接特定 VPN 时异常","：记录受影响的网址、连接状态和具体报错，交给网络管理员进一步核对，避免随意覆盖组织提供的 DNS 设置。",[11,234,235],{},"如果问题仍在，保留浏览器显示的完整错误信息，以及“哪些网站、浏览器、设备或网络受影响”这些线索，比连续刷新缓存更有助于继续排查。",[11,237,238,239,242,243,72],{},"需要通过图形界面刷新 Mac 的 DNS 缓存时，可以",[17,240,241],{"href":19},"下载 MangoDisk","，在系统维护中单独执行对应项目。免费开源，无需注册。更多相关教程见 ",[17,244,246],{"href":245},"\u002Fzh\u002Fblog\u002Ftopics\u002Fmac-cleanup","Mac 使用与管理文章",[248,249,250],"style",{},"html pre.shiki code .sScJk, html code.shiki .sScJk{--shiki-default:#6F42C1;--shiki-dark:#B392F0}html pre.shiki code .sZZnC, html code.shiki .sZZnC{--shiki-default:#032F62;--shiki-dark:#9ECBFF}html pre.shiki code .sj4cs, html code.shiki .sj4cs{--shiki-default:#005CC5;--shiki-dark:#79B8FF}html pre.shiki code .sVt8B, html code.shiki .sVt8B{--shiki-default:#24292E;--shiki-dark:#E1E4E8}html .default .shiki span {color: var(--shiki-default);background: var(--shiki-default-bg);font-style: var(--shiki-default-font-style);font-weight: var(--shiki-default-font-weight);text-decoration: var(--shiki-default-text-decoration);}html .shiki span {color: var(--shiki-default);background: var(--shiki-default-bg);font-style: var(--shiki-default-font-style);font-weight: var(--shiki-default-font-weight);text-decoration: var(--shiki-default-text-decoration);}html .dark .shiki span {color: var(--shiki-dark);background: var(--shiki-dark-bg);font-style: var(--shiki-dark-font-style);font-weight: var(--shiki-dark-font-weight);text-decoration: var(--shiki-dark-text-decoration);}html.dark .shiki span {color: var(--shiki-dark);background: var(--shiki-dark-bg);font-style: var(--shiki-dark-font-style);font-weight: var(--shiki-dark-font-weight);text-decoration: var(--shiki-dark-text-decoration);}",{"title":142,"searchDepth":252,"depth":252,"links":253},2,[254,255,256,257],{"id":45,"depth":252,"text":46},{"id":98,"depth":252,"text":99},{"id":121,"depth":252,"text":121},{"id":191,"depth":252,"text":192},"Mac 系统工具","\u002Fimages\u002Fblog\u002Fflush-dns-mac.webp","暖白背景上的橙色刷新箭头、相连的网络节点与浏览器窗口","用 MangoDisk 清除 Mac 的 DNS 缓存，了解适合刷新的情况、终端操作方法，以及网站仍打不开时该检查什么。",false,"md",{},true,"\u002Fzh\u002Fblog\u002Fflush-dns-mac","2026-11-04T12:16:11+08:00",{"title":5,"description":261},"zh\u002Fblog\u002Fflush-dns-mac",[271,272,29],"Mac DNS 缓存","刷新 DNS",[274],"mac-cleanup","article-flush-dns-mac","MJC8z4puLDv_INjxMY-7l5RlRpUgqTqw1NsbHG9lhXI",1794358864458]