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Linux下开启SSH，并且允许root用户远程登录,允许无密码登录
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<time title="创建时间：2019-12-01 13:34:18" itemprop="dateCreated datePublished" datetime="2019-12-01T13:34:18+08:00">2019-12-01</time>
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<h3 id="允许root用户远程登录"><a href="#允许root用户远程登录" class="headerlink" title="允许root用户远程登录"></a>允许root用户远程登录</h3><p>修改ssh服务配置文件</p>
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<pre><code>sudo vi /etc/ssh/sshd_config</code></pre><p>调整PermitRootLogin参数值为yes</p>
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<a id="more"></a>
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<h3 id="允许无密码登录"><a href="#允许无密码登录" class="headerlink" title="允许无密码登录"></a>允许无密码登录</h3><p>同上，修改ssh服务配置文件，两种情况：</p>
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<pre><code>1） 将PermitEmptyPasswords yes前面的#号去掉
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2） 将PermitEmptyPasswords 参数值修改为yes，如下图：</code></pre><p>无论哪种，最后PermitEmptyPasswords参数值为yes</p>
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<p>以上两种配置，均需要重启ssh服务</p>
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<pre><code>service sshd restart # 或者
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/etc/initd.d/sshd restart</code></pre><h3 id="扩展："><a href="#扩展：" class="headerlink" title="扩展："></a>扩展：</h3><p>为了安全起见，FreeBSD默认情况下是不允许root用户进行SSH远程登录的，需要进行以下操作才可以进行Root用户的ssh远程登录。</p>
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<p>首先vi编辑/etc/inetd.conf,去掉ssh前的#注释，保存后:wq退出 (开启监听ssh服务)</p>
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<p>编辑/etc/rc.conf， 最后加入:sshd_enable=”yes”即可<br>激活sshd服务：</p>
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<pre><code>#/etc/rc.d/sshd start</code></pre><p>检查服务是否启动，在22端口应该有监听。</p>
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<pre><code># check port number 22
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#netstat -an # 或
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#netstat -tnlp</code></pre><p>最后，编辑ssh配置文件</p>
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<pre><code>#vi /etc/ssh/sshd_config</code></pre><p>在/etc/ssh/sshd_config最后中加入</p>
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<pre><code>PermitRootLogin yes #允许root登录
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PermitEmptyPasswords no #不允许空密码登录
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PasswordAuthentication yes # 设置是否使用口令验证。</code></pre><p>修改完配置文件后，重新启动sshd服务器(/etc/rc.d/sshd restart)即可。</p>
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<p>补充：</p>
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<ol>
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<li>如果重启后还是不行， 请重新载入sshd_config 文件/etc/rc.d/sshd reload</li>
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<li>如果出现using keyboard-interactive authentication<br>password:<br>请确认配置文件中，PasswordAuthentication参数值是否已经改成yes<br>另外如果客户端是putty， 那么请确认”尝试’智能键盘’认证（SSH-2）”的勾是否有去掉!!!!</li>
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<li>如果是使用root帐号登陆<br>请确认密码是否为空<br>空密码无法登陆</li>
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<li>请确认是否有安装SSH<br>确认sysinstall>>>configure>>>networking>>>sshd是否的勾是否有打上.</li>
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</ol>
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<ol start="5">
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<li>Please login as the user “ingressjinyu” rather than the user “root”.<blockquote>
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<p>nano /root/.ssh/authorized_keys</p>
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</blockquote>
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</ol>
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<pre><code>no-port-forwarding,no-agent-forwarding,no-X11-forwarding,command="
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echo 'Please login as the user "ubuntu" rather than the user "root".';
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echo;sleep 10" ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQCPqJ2U4gidqek
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4FPQJABENkrUiLVP61LObdFAZXvs2EpCf/nBQCRg4ykMNg+8TC9lb7jC65zfIrTUcNcwongDb4
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3k6miSKu1M8fdqXDpcb8CdDRaKpM2wP8l+hTaJ2aWycXmGJ7lZKQPiwNUOhbrOLNEtDmOI9eiV
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lz7See98LVLW+6AwfzNA8Cu4riDTvEMQr/WQ9NLrS3BZE1TAAswJi9lGDfTgEvfh4Ji+eI/xT
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Xrjkkwjerkjk3jrkwejrkjwe9wASXob4rbV12TXjQIcMKaRGQAGrwOHu0nM2ibfTdgqjrTAG
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03CXKzQhF09LdxKlT7GpYe0oVU2R1kjkejwQp howtoing.com</code></pre><p>删除ssh-rsa 前面的no-port….</p>
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<p>参考：<a href="http://blog.csdn.net/jia0511/article/details/8237698" target="_blank" rel="noopener">http://blog.csdn.net/jia0511/article/details/8237698</a></p>
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<div class="post-toc motion-element"><ol class="nav"><li class="nav-item nav-level-3"><a class="nav-link" href="#允许root用户远程登录"><span class="nav-number">1.</span> <span class="nav-text">允许root用户远程登录</span></a></li><li class="nav-item nav-level-3"><a class="nav-link" href="#允许无密码登录"><span class="nav-number">2.</span> <span class="nav-text">允许无密码登录</span></a></li><li class="nav-item nav-level-3"><a class="nav-link" href="#扩展："><span class="nav-number">3.</span> <span class="nav-text">扩展：</span></a></li></ol></div>
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<a target="_blank" href="https://www.upyun.com/?utm_source=lianmeng&utm_medium=referral">
|
||
<img src="https://upyun.yuxihan.com/yunpaiyun.png" style="display:inline-block;text-decoration:none;width: 50px;margin-bottom:-8px;"></a>
|
||
</span>
|
||
</div>
|
||
|
||
<!-- 在网页底部添加网站运行时间 -->
|
||
<span id="timeDate">载入天数...</span><span id="times">载入时分秒...</span>
|
||
<script>
|
||
var now = new Date();
|
||
function createtime() {
|
||
var grt= new Date("05/20/2014 00:00:00");//此处修改你的建站时间或者网站上线时间
|
||
now.setTime(now.getTime()+250);
|
||
days = (now - grt ) / 1000 / 60 / 60 / 24; dnum = Math.floor(days);
|
||
hours = (now - grt ) / 1000 / 60 / 60 - (24 * dnum); hnum = Math.floor(hours);
|
||
if(String(hnum).length ==1 ){hnum = "0" + hnum;} minutes = (now - grt ) / 1000 /60 - (24 * 60 * dnum) - (60 * hnum);
|
||
mnum = Math.floor(minutes); if(String(mnum).length ==1 ){mnum = "0" + mnum;}
|
||
seconds = (now - grt ) / 1000 - (24 * 60 * 60 * dnum) - (60 * 60 * hnum) - (60 * mnum);
|
||
snum = Math.round(seconds); if(String(snum).length ==1 ){snum = "0" + snum;}
|
||
document.getElementById("timeDate").innerHTML = "网站已运行 "+dnum+" 天 ";
|
||
document.getElementById("times").innerHTML = hnum + " 小时 " + mnum + " 分 " + snum + " 秒";
|
||
}
|
||
setInterval("createtime()",250);
|
||
</script>
|
||
<div class="beian">
|
||
<a href="http://beian.miit.gov.cn/" rel="noopener" target="_blank">鲁ICP备19060123号</a>
|
||
|
||
<span class="post-meta-divider">|</span>
|
||
|
||
<img src="/images/beian_icon.png" style="display:inline-block;text-decoration:none;height:13px;" />
|
||
|
||
<a href="http://www.beian.gov.cn/portal/registerSystemInfo?recordcode=44030702002723" rel="noopener" target="_blank">粤公网安备 44030702002723号</a>
|
||
|
||
</div>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
</div>
|
||
</footer>
|
||
</div>
|
||
|
||
|
||
<script src="/lib/anime.min.js"></script>
|
||
<script src="/js/utils.js"></script>
|
||
<script src="/js/schemes/muse.js"></script>
|
||
<script src="/js/next-boot.js"></script>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<script src="/js/local-search.js"></script>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
</body>
|
||
</html>
|