blocks|key|2405066|text|您可能想要阅读以下内容：http://www.justincarmony.com/blog/2011/07/27/mac-os-x-lion-etc-hosts-bugs-and-dns-resolution/|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|2405067|entityMap|0|LINK|mutability|MUTABLE|url|http://www.justincarmony.com/blog/2011/07/27/mac-os-x-lion-etc-hosts-bugs-and-dns-resolution/^0|C|2L|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@$A|M|B|N|1|O]]|C|$]]|$1|D|3|-4|5|6|7|P|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]]]

You might want to read this:
<a href="http://www.justincarmony.com/blog/2011/07/27/mac-os-x-lion-etc-hosts-bugs-and-dns-resolution/" rel="nofollow">http://www.justincarmony.com/blog/2011/07/27/mac-os-x-lion-etc-hosts-bugs-and-dns-resolution/</a>

blocks|key|4192353|text|转到主机文件(/etc/hosts)并删除此行|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|4192354|127.0.0.1+(null)|code-block|syntax|javascript|4192355|entityMap^0|7|A|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@$9|N|A|O|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|P|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|Q|8|@]|D|@]|E|$]]]|L|$]]

Go to your hosts file (<code>/etc/hosts</code>) and delete this line

<pre><code>127.0.0.1 (null)
</code></pre>

blocks|key|2118539|text|在mac上，通过go+to+folder命令(或cmd-shift-g)转到/etc/hosts。你可能会发现你的主机文件被锁定了。在文件上执行get+info+(cmd-i)并取消选中'locked‘。同时检查您在“共享和权限”下是否拥有写权限或只读权限。这就是我所做的，现在我的MAMP+Pro+100%25工作|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2118540|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

On you mac, via the go to folder command (or cmd-shift-g) go to /etc/hosts.
You will likely find that your hosts file is locked. Do a get info (cmd-i) on the file and uncheck 'locked'. Also check to see if you have write or read-only permissions under "Sharing and permissions". This is what I did and now my MAMP Pro works 100%

blocks|key|2405120|text|我使用了Arend+solution，并使用Terminal对主机文件中的127.0.0.1行进行了注释。当你打开终端，输入sudo+nano+/private/etc/hosts，系统会要求你输入密码。使用光标导航到带有127.0.0.1的行，并通过在前面添加#对其进行注释。然后按Control%2BX并回答Y，MAMP照常工作正常。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2405121|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

I used Arend solution and commented the 127.0.0.1 line on my host file using Terminal.
When you open Terminal type sudo nano /private/etc/hosts
and you'll be asked for your password.
With your cursor navigate to the line with the 127.0.0.1 and comment it by adding a # before.
Then press Control+X and answer Y and MAMP worked fine as usual.

blocks|key|4192425|text|我不确定这是否会对你的问题有所帮助，但我刚刚重新安装了mamp+pro，所以我再次遇到了这个问题，我之前已经解决了这个问题。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4192426|打开Mamp+Pro+>主机>在中间会有一个标题为"Disk+Location“的框，上面写着类似于"/Applications/MAMP/htdocs”的内容，下面有一个按钮，上面写着权限。单击此选项，在名为“权限”且有一堆复选框的区域中，您只需在目录行中选中"W“，然后单击”设置“。瞧。|4192427|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|F|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|G|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|H|8|@]|9|@]|A|$]]]|E|$]]

I'm not sure if this will help with your issues, but I just reinstalled mamp pro so I had the problem again, which I have fixed previously.

Open Mamp Pro > Hosts > There will be a box in the centre titled "Disk Location" which will say something like "/Applications/MAMP/htdocs" under which it has a button that says Permissions.
Click this, in the area that is called "Permissions" and has a bunch of check boxes, you simply the the "W" checks in the directory row and click "Set". Voila.

blocks|key|498863|text|我在MAMP+Pro+2.0.5上也有同样的问题。如果你编辑了etc/hosts文件(例如，输入额外的文本...)，MAMP+Pro似乎就不能工作了。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|498864|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

I have the same problem with MAMP Pro 2.0.5. It seem like MAMP Pro won't work if you edited your etc/hosts file (eg, put in extra text...)

blocks|key|4192114|text|您猜测这是一个权限问题，这似乎是合理的。要进一步研究这一点，您可以尝试以下操作：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4192115|4192116|在哪个帐户下运行MAMP？|unordered-list-item|4192117|如果您以此帐户登录，是否可以对该帐户进行编辑该帐户需要属于特定的组才能访问/etc/|4192118|4192119|请记住，允许应用程序修改/etc/hosts是一种安全风险，这就是为什么首先要使用严格的权限来保护它。|4192120|MAMP文档http://documentation.mamp.info/en/mamp-pro/hosts/general中的快速RTFM显示，有一个复选框(本地名称解析)用于控制MAMP是否写入主机文件。我的建议是取消选中此复选框，然后使用适当的特权帐户手动编辑主机文件，以添加您希望使用的名称。|offset|length|4192121|entityMap|0|LINK|mutability|MUTABLE|url|http://documentation.mamp.info/en/mamp-pro/hosts/general^0|0|0|0|0|0|0|6|1K|0|0^^$0|@$1|2|3|4|5|6|7|W|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|X|8|@]|9|@]|A|$]]|$1|C|3|D|5|E|7|Y|8|@]|9|@]|A|$]]|$1|F|3|G|5|E|7|Z|8|@]|9|@]|A|$]]|$1|H|3|-4|5|6|7|10|8|@]|9|@]|A|$]]|$1|I|3|J|5|6|7|11|8|@]|9|@]|A|$]]|$1|K|3|L|5|6|7|12|8|@]|9|@$M|13|N|14|1|15]]|A|$]]|$1|O|3|-4|5|6|7|16|8|@]|9|@]|A|$]]]|P|$Q|$5|R|S|T|A|$U|V]]]]

Your guess that it's a permissions issue seems reasonable. To investigate this further, you can try the following:

<ul>
<li>What account does MAMP run under? </li>
<li>If you log in as this account, can
you edit /etc/hosts</li>
<li>Does the account need to be in a specific group to get access to /etc/hosts</li>
</ul>

Bear in mind that allowing an application to modify /etc/hosts is a security risk, which is why it is secured with strict permissions in the first place. 

A quick RTFM at the MAMP documentation <a href="http://documentation.mamp.info/en/mamp-pro/hosts/general" rel="nofollow">http://documentation.mamp.info/en/mamp-pro/hosts/general</a> shows that there is a check-box (Local Name Resolution) to control whether or not MAMP writes to the hosts file. My suggestion would be that you uncheck this check-box, and then manually edit your hosts file using a suitably privileged account to add the names you wish to use.

blocks|key|4192185|text|我在2.0.5版本中遇到了这个问题...我得到了消息Can't+write+to+/etc/hosts，下面显示了另一条错误消息，内容类似于"IDN+to+another+at+hostname“。这是，在许多小时之后，完全激怒了。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|4192186|我已经卸载了MAMP和MAMP+Pro几次，这并不能解决问题。使用sudo可以很容易地编写/etc/hosts。|4192187|我也尝试过使用XAMPP来绕过这个问题，但我在服务器管理方面不是很熟练，而且似乎无法正确设置vhosts。|4192188|我正要拔掉我的牙齿，重新安装os+x。我将转向Stackoverflow，因为MAMP论坛几乎毫无用处。|4192189|4192190|我已经绕过了我在MamPPro2.0.5上遇到的问题，我求助于MAMP的非付费版本，并手动为每个http://sawmac.com/mamp/virtual/创建虚拟主机->|4192191|entityMap|0|LINK|mutability|MUTABLE|url|http://sawmac.com/mamp/virtual/^0|Q|P|0|X|4|19|A|0|0|0|0|1C|V|0|0^^$0|@$1|2|3|4|5|6|7|W|8|@$9|X|A|Y|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|Z|8|@$9|10|A|11|B|C]|$9|12|A|13|B|C]]|D|@]|E|$]]|$1|H|3|I|5|6|7|14|8|@]|D|@]|E|$]]|$1|J|3|K|5|6|7|15|8|@]|D|@]|E|$]]|$1|L|3|-4|5|6|7|16|8|@]|D|@]|E|$]]|$1|M|3|N|5|6|7|17|8|@]|D|@$9|18|A|19|1|1A]]|E|$]]|$1|O|3|-4|5|6|7|1B|8|@]|D|@]|E|$]]]|P|$Q|$5|R|S|T|E|$U|V]]]]

I'm having this exact problem with 2.0.5... I'm given the message <code>Can't write to /etc/hosts</code>, underneath which appears another error message that says something along the lines of "IDN to ACE conversion failed at hostname". This is, after many hours, completely infuriating.

I've uninstalled MAMP &amp; MAMP Pro several times, which does not a thing to resolve the problem. <code>/etc/hosts</code> is easily writable using <code>sudo</code>.

I've also tried using XAMPP, to circumvent the problem, but I'm not terribly skilled at server admin, and can't seem to get vhosts properly set up.

I'm about to pull my teeth out, and reinstall os x. I'm turning to Stackoverflow, as the MAMP forum has been just about useless

<hr>

I've circumvented the problems I've been having with MAMP Pro 2.0.5 by resorting to the non-paid version of MAMP, and manually creating virtual hosts per ---> <a href="http://sawmac.com/mamp/virtual/" rel="nofollow">http://sawmac.com/mamp/virtual/</a>

blocks|key|2118599|text|对于任何其他有这个问题的人。我的修复方法是通过使用他们在/Applications自己的文件夹中的卸载应用程序来卸载mamp+pro和标准版。我得到关于两个文件夹不能被擦除的错误。我不记得是哪几个了，但是如果你遇到的问题和我的一样，你会得到一个文件夹名称的提示。文件夹位于：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2118600|~/库/首选项|2118601|~/库/应用程序支持|2118602|我手动删除了这些文件，并重新启动了卸载应用程序。我还从~/Library/Preferences文件夹中删除了以下两个文件：|2118603|de.appsolute.MAMP.plist+de.appsolute.mamppro.plist.lockfile|2118604|已重新启动并安装Mamp+Pro。|2118605|entityMap^0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|N|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|O|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|P|8|@]|9|@]|A|$]]|$1|F|3|G|5|6|7|Q|8|@]|9|@]|A|$]]|$1|H|3|I|5|6|7|R|8|@]|9|@]|A|$]]|$1|J|3|K|5|6|7|S|8|@]|9|@]|A|$]]|$1|L|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|M|$]]

for anyone else having this problem. My fix was to uninstall mamp pro and the standard version too by using their uninstall apps located on their own folders in /Applications. I got erros about two folders not being able to be erased. I don't remember which ones but if the problem you're having is same as mine was, you'll get a prompt of folder names. Folders were located in: 

~/Library/Preferences 
~/Library/Application Support 

I deleted those manually and restarted the uninstall app. I also deleted the following two files from the ~/Library/Preferences folder: 

de.appsolute.MAMP.plist
de.appsolute.mamppro.plist.lockfile

Rebooted and installed Mamp Pro.

blocks|key|499394|text|我刚刚在v3.5下解决了这个问题，解决方法是取消选中“锁定”，选中“共享和权限”，最后注释掉这一行：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|499395|#+127.0.0.1+localhost|code-block|syntax|javascript|499396|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

I just had this issue under v3.5 and solve it by uncheck 'locked', checking "Sharing and permissions" and finally commenting out this line:

<pre><code># 127.0.0.1 localhost
</code></pre>

blocks|key|499446|text|我意识到这是一个非常古老的问题。然而，当我尝试在El+Capitan中使用MAMP+Pro时，我最近就遇到了这个问题。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|499447|我也收到了同样的"The+file+/etc/hosts+was‘t+be+written“错误。然而，上面的解决方案都不起作用(在一些研究之后)，我发现这个问题是由El+Capitan添加的系统完整性保护(SIP)引起的。-为了允许MAMP更新主机文件，需要将其关闭。|499448|499449|blockquote|499450|499451|Restart...|499452|Hold+|unordered-list-item|499453|
|499454|单击apple菜单。|499455|499456|选择Restart...|499457|499458|Hold+down命令-R以引导至恢复系统。|499459|499460|单击实用程序菜单并选择return.|499461|499462|Close+csrutil+disable，然后按return.|499463|499464|Close|499465|。|499466|单击apple菜单并选择Restart....|499467|<>F217|499468|499469|如果您稍后决定要重新使用SIP(我希望这样做)，请重复这些步骤，将csrutil+disable改为csrutil+enable。我个人会重新启用它，因为添加SIP是为了保护您。|499470|上面的步骤是从下面的文章中剪切和粘贴的：|499471|http://www.imore.com/el-capitan-system-integrity-protection-helps-keep-malware-away|offset|length|499472|请注意有关禁用此保护的警告-它的存在是有原因的。我个人离线，然后禁用SIP，进行更改，然后重新启用它，然后重新联机。|499473|entityMap|0|LINK|mutability|MUTABLE|url^0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|2B|0|0|0^^$0|@$1|2|3|4|5|6|7|1T|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|1U|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|1V|8|@]|9|@]|A|$]]|$1|E|3|-4|5|F|7|1W|8|@]|9|@]|A|$]]|$1|G|3|-4|5|6|7|1X|8|@]|9|@]|A|$]]|$1|H|3|I|5|6|7|1Y|8|@]|9|@]|A|$]]|$1|J|3|K|5|L|7|1Z|8|@]|9|@]|A|$]]|$1|M|3|N|5|6|7|20|8|@]|9|@]|A|$]]|$1|O|3|P|5|L|7|21|8|@]|9|@]|A|$]]|$1|Q|3|N|5|6|7|22|8|@]|9|@]|A|$]]|$1|R|3|S|5|L|7|23|8|@]|9|@]|A|$]]|$1|T|3|N|5|6|7|24|8|@]|9|@]|A|$]]|$1|U|3|V|5|L|7|25|8|@]|9|@]|A|$]]|$1|W|3|N|5|6|7|26|8|@]|9|@]|A|$]]|$1|X|3|Y|5|L|7|27|8|@]|9|@]|A|$]]|$1|Z|3|N|5|6|7|28|8|@]|9|@]|A|$]]|$1|10|3|11|5|L|7|29|8|@]|9|@]|A|$]]|$1|12|3|N|5|6|7|2A|8|@]|9|@]|A|$]]|$1|13|3|14|5|L|7|2B|8|@]|9|@]|A|$]]|$1|15|3|16|5|L|7|2C|8|@]|9|@]|A|$]]|$1|17|3|18|5|L|7|2D|8|@]|9|@]|A|$]]|$1|19|3|1A|5|6|7|2E|8|@]|9|@]|A|$]]|$1|1B|3|-4|5|6|7|2F|8|@]|9|@]|A|$]]|$1|1C|3|1D|5|6|7|2G|8|@]|9|@]|A|$]]|$1|1E|3|1F|5|6|7|2H|8|@]|9|@]|A|$]]|$1|1G|3|1H|5|6|7|2I|8|@]|9|@$1I|2J|1J|2K|1|2L]]|A|$]]|$1|1K|3|1L|5|6|7|2M|8|@]|9|@]|A|$]]|$1|1M|3|-4|5|6|7|2N|8|@]|9|@]|A|$]]]|1N|$1O|$5|1P|1Q|1R|A|$1S|1H]]]]

I realise that this is a very old question. However, I have recently hit exactly this issue when trying to use MAMP Pro with El Capitan. 

I too was receiving the same "The file /etc/hosts couldn't be written" error. However, none of the solutions above worked as (after some research) I discovered that the issue was caused by the System Integrity Protection (SIPs) that was added with El Capitan. - In order to allow MAMP to update the hosts file this needs to be switched off. 

<blockquote>
 <ul>
 <li>Click the apple menu.</li>
 <li>Select Restart...</li>
 <li>Hold down command-R to boot into the Recovery System.</li>
 <li>Click the Utilities menu and select Terminal.</li>
 <li>Type csrutil disable and press return.</li>
 <li>Close the Terminal app.</li>
 <li>Click the apple menu and select Restart....</li>
 </ul>
 
 If you decide later you want to re-engage SIPs (and I hope that you
 do), repeat these steps, changing csrutil disable to csrutil enable
 instead. I personally would re enable it as SIPs was added for your
 protection.
 
 The above steps were cut and pasted from the following article:
 
 <a href="http://www.imore.com/el-capitan-system-integrity-protection-helps-keep-malware-away" rel="nofollow">http://www.imore.com/el-capitan-system-integrity-protection-helps-keep-malware-away</a>
</blockquote>

Please be aware of the warning about disabling this protection - It is there for a reason. I personally go offline then disable SIPs, make my change, then re-enable it, go back online.

blocks|key|2405226|text|您应该能够以sudo身份运行。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2405227|sudo+nano+/etc/hosts|code-block|syntax|javascript|2405228|然后，您可以进行修改并刷新DNS缓存。|2405229|dscacheutil+-flushcache|2405230|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

You should be able to run as sudo.
<pre><code>sudo nano /etc/hosts
</code></pre>
You can then make your amends and refresh the DNS caching.
<pre><code>dscacheutil -flushcache
</code></pre>

I'm running MAMP and it's telling me that it can't write to the /etc/hosts file. I'm guessing it's a permission issue but not totally sure. This is the error: 

<pre><code>The file /etc/hosts couldn't be written
</code></pre>

Any thoughts?

/etc/hosts file permission Mamp Pro

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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功能1上新10个字符

功能2描述100个字符功能2描述100个字符功能2描述100个字符功能2描述100个字符功能2描述100个字符功能2描述100个字符功能2描述100个字符功能2描述100个字符功能2描述100个字符。

功能2上新100个字符功能2上新100个字符功能2上新100个字符功能2上新100个字符功能2上新100个字符功能2上新100个字符功能2上新100个字符功能2上新100个字符功能2上新100个字符。

功能5描述100个字符功能5描述100个字符功能5描述100个字符功能5描述100个字符功能5描述100个字符功能5描述100个字符

功能5上新100个字符功能5上新100个字符功能5上新100个字符功能5上新100个字符功能5上新100个字符功能5上新100个字符功能5上新100个字符功能5上新100个字符功能5上新100个字符功能5上新100个字符

功能4上新

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社区新版编辑器体验调研

我正在运行MAMP，它告诉我它不能写入/etc/hosts文件。我猜这是一个许可问题，但不是完全确定。这是错误：The file /etc/hosts couldn't be written有什么想法吗？

问/etc/hosts文件权限Mamp Pro
EN

回答 12

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问/etc/hosts文件权限Mamp ProEN

回答 12

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问/etc/hosts文件权限Mamp Pro
EN