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<em><span style="font-family: Simsun; font-size: medium;">DenyHosts是使用Python</span><span style="font-family: Simsun; font-size: medium;">语言写的一个程序，它会分析sshd的日志文件（/var/log/auth.log*），当发现大量重复的攻击时会记录IP到/etc/hosts.deny文件，从而达到自动屏攻击者IP的功能。</span></em>
<p>目前官网最新版本是2.10，记得以前的ubuntu版本(<=12.04LTS)中好像直接apt-get install denyhosts 就可以了，在最新的发行版不知为何不见了。</p>
<p><strong>安装</strong></p>
<p>你可以前往官网<a target="_blank" rel="noopener" href="http://sourceforge.net/projects/denyhost/">http://sourceforge.net/projects/denyhost/</a> 选择一个你喜欢的版本下载，或者直接运行下面的命令下载。</p>
<pre class="brush: bash; gutter: true">cd /tmp/ && wget http://jaist.dl.sourceforge.net/project/denyhost/denyhost-2.10/denyhosts-2.10.tar.gz
#解压
tar xzvf denyhosts-2.10.tar.gz
#切换到目录
cd denyhosts
#安装
sudo python setup.py install</pre><span id="more"></span>
<p><strong>配置</strong></p>
<p>经过上面这几步，基本已经完成了denyhosts 的安装，下面我们还需要进行一些配置。</p>
<pre class="brush: bash; gutter: true">#复制daemon文件到init.d 目录
sudo cp /usr/local/bin/daemon-control-dist /etc/init.d/denyhosts
sudo vim /etc/init.d/denyhosts
#A:将打开的文件里面的DENYHOSTS_BIN 修改为你自己denyhosts的目录，一般应该是/usr/local/bin/denyhosts.py
#B:或者是建立一个软连接
ln -s /usr/local/bin/denyhosts.py /usr/sbin/denyhosts
#注意：A或者B只需要执行一个就行了！</span></span></pre><span style="font-family: Gudea, sans-serif;"><span style="font-size: 16px; line-height: 24px;">现在denyhosts 就已经安装配置好了，我们可以先把我们自己的IP加到系统的白名单里面</span></span><pre class="brush: bash; gutter: true">#编辑白名单
<p>sudo vim /etc/hosts.allow </p>
<p>#按下面的样例添加你的IP</p>
<h1 id="etc-hosts-allow-list-of-hosts-that-are-allowed-to-access-the-system"><a href="#etc-hosts-allow-list-of-hosts-that-are-allowed-to-access-the-system" class="headerlink" title="/etc/hosts.allow: list of hosts that are allowed to access the system."></a>/etc/hosts.allow: list of hosts that are allowed to access the system.</h1><h1 id="See-the-manual-pages-hosts-access-5-and-hosts-options-5"><a href="#See-the-manual-pages-hosts-access-5-and-hosts-options-5" class="headerlink" title="See the manual pages hosts_access(5) and hosts_options(5)."></a>See the manual pages hosts_access(5) and hosts_options(5).</h1><h1 id=""><a href="#" class="headerlink" title=""></a></h1><h1 id="Example-ALL-LOCAL-wangheng-org"><a href="#Example-ALL-LOCAL-wangheng-org" class="headerlink" title="Example: ALL: LOCAL @wangheng.org"></a>Example: ALL: LOCAL @wangheng.org</h1><h1 id="ALL-wangheng-org-EXCEPT-terminalserver-wangheng-org"><a href="#ALL-wangheng-org-EXCEPT-terminalserver-wangheng-org" class="headerlink" title="ALL: .wangheng.org EXCEPT terminalserver.wangheng.org"></a>ALL: .wangheng.org EXCEPT terminalserver.wangheng.org</h1><h1 id="-1"><a href="#-1" class="headerlink" title=""></a></h1><h1 id="If-you’re-going-to-protect-the-portmapper-use-the-name-“rpcbind”-for-the"><a href="#If-you’re-going-to-protect-the-portmapper-use-the-name-“rpcbind”-for-the" class="headerlink" title="If you’re going to protect the portmapper use the name “rpcbind” for the"></a>If you’re going to protect the portmapper use the name “rpcbind” for the</h1><h1 id="daemon-name-See-rpcbind-8-and-rpc-mountd-8-for-further-information"><a href="#daemon-name-See-rpcbind-8-and-rpc-mountd-8-for-further-information" class="headerlink" title="daemon name. See rpcbind(8) and rpc.mountd(8) for further information."></a>daemon name. See rpcbind(8) and rpc.mountd(8) for further information.</h1><h1 id="-2"><a href="#-2" class="headerlink" title=""></a></h1><p> sshd: 123.123.123.123</pre><p style="border: 0px; font-family: Gudea, sans-serif; font-size: 16px; margin: 0px 0px 1.5em; outline: 0px; padding: 0px; vertical-align: baseline; color: #404040; line-height: 24px;"><span style="border: 0px; font-family: inherit; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline; color: #000000;">编辑保存后，我们需要重启一下服务：</span></p><p style="border: 0px; font-family: Gudea, sans-serif; font-size: 16px; margin: 0px 0px 1.5em; outline: 0px; padding: 0px; vertical-align: baseline; color: #404040; line-height: 24px;"><span style="border: 0px; font-family: inherit; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline; color: #000000;">sudo /etc/init.d/denyhosts restart</span></p><br></content></p>
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class="length-num">86</div></a><a href="/tags/"><div class="headline">标签</div><div class="length-num">132</div></a><a href="/categories/"><div class="headline">分类</div><div class="length-num">7</div></a></div><a id="card-info-btn" target="_blank" rel="noopener" href="https://github.com/all4fun"><i class="fab fa-github"></i><span>关注</span></a></div><div class="sticky_layout"><div class="card-widget" id="card-toc"><div class="item-headline"><i class="fas fa-stream"></i><span>目录</span><span class="toc-percentage"></span></div><div class="toc-content"><ol class="toc"><li class="toc-item toc-level-1"><a class="toc-link" href="#etc-hosts-allow-list-of-hosts-that-are-allowed-to-access-the-system"><span class="toc-number">1.</span> <span class="toc-text">/etc/hosts.allow: list of hosts that are allowed to access the system.</span></a></li><li class="toc-item toc-level-1"><a class="toc-link" href="#See-the-manual-pages-hosts-access-5-and-hosts-options-5"><span class="toc-number">2.</span> <span class="toc-text">See the manual pages hosts_access(5) and hosts_options(5).</span></a></li><li class="toc-item toc-level-1"><a class="toc-link"><span class="toc-number">3.</span> <span class="toc-text"></span></a></li><li class="toc-item toc-level-1"><a class="toc-link" href="#Example-ALL-LOCAL-wangheng-org"><span class="toc-number">4.</span> <span class="toc-text">Example: ALL: LOCAL @wangheng.org</span></a></li><li class="toc-item toc-level-1"><a class="toc-link" href="#ALL-wangheng-org-EXCEPT-terminalserver-wangheng-org"><span class="toc-number">5.</span> <span class="toc-text">ALL: .wangheng.org EXCEPT terminalserver.wangheng.org</span></a></li><li class="toc-item toc-level-1"><a class="toc-link" href="#-1"><span class="toc-number">6.</span> <span class="toc-text"></span></a></li><li class="toc-item toc-level-1"><a class="toc-link" href="#If-you%E2%80%99re-going-to-protect-the-portmapper-use-the-name-%E2%80%9Crpcbind%E2%80%9D-for-the"><span class="toc-number">7.</span> <span class="toc-text">If you’re going to protect the portmapper use the name “rpcbind” for the</span></a></li><li class="toc-item toc-level-1"><a class="toc-link" href="#daemon-name-See-rpcbind-8-and-rpc-mountd-8-for-further-information"><span class="toc-number">8.</span> <span class="toc-text">daemon name. See rpcbind(8) and rpc.mountd(8) for further information.</span></a></li><li class="toc-item toc-level-1"><a class="toc-link" href="#-2"><span class="toc-number">9.</span> <span class="toc-text"></span></a></li></ol></div></div></div></div></main><footer id="footer"><div id="footer-wrap"><div class="copyright">©2020 - 2022 By 王恒</div><div class="framework-info"><span>框架 </span><a target="_blank" rel="noopener" href="https://hexo.io">Hexo</a><span class="footer-separator">|</span><span>主题 </span><a target="_blank" rel="noopener" href="https://github.com/jerryc127/hexo-theme-butterfly">Butterfly</a></div></div></footer></div><div id="rightside"><div id="rightside-config-hide"><button id="readmode" type="button" title="阅读模式"><i class="fas fa-book-open"></i></button><button id="darkmode" type="button" title="浅色和深色模式转换"><i class="fas fa-adjust"></i></button><button id="hide-aside-btn" type="button" title="单栏和双栏切换"><i class="fas fa-arrows-alt-h"></i></button></div><div id="rightside-config-show"><button id="rightside_config" type="button" title="设置"><i class="fas fa-cog fa-spin"></i></button><button class="close" id="mobile-toc-button" type="button" title="目录"><i class="fas fa-list-ul"></i></button><a id="to_comment" href="#post-comment" title="直达评论"><i class="fas fa-comments"></i></a><button id="go-up" type="button" title="回到顶部"><i class="fas fa-arrow-up"></i></button></div></div><div id="local-search"><div class="search-dialog"><nav class="search-nav"><span class="search-dialog-title">搜索</span><span id="loading-status"></span><button class="search-close-button"><i class="fas fa-times"></i></button></nav><div class="is-center" id="loading-database"><i class="fas fa-spinner fa-pulse"></i><span> 数据库加载中</span></div><div class="search-wrap"><div id="local-search-input"><div class="local-search-box"><input class="local-search-box--input" placeholder="搜索文章" type="text"/></div></div><hr/><div id="local-search-results"></div></div></div><div id="search-mask"></div></div><div><script src="/js/utils.js"></script><script src="/js/main.js"></script><script src="https://cdn.jsdelivr.net/npm/@fancyapps/ui/dist/fancybox.umd.min.js"></script><script src="https://cdn.jsdelivr.net/npm/instant.page/instantpage.min.js" type="module"></script><script src="https://cdn.jsdelivr.net/npm/vanilla-lazyload/dist/lazyload.iife.min.js"></script><script src="/js/search/local-search.js"></script><div class="js-pjax"><script>function loadDisqus () {
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