ubuntu出现有线已连接却无法上网的解决方法(ubuntu连不上网)
<p style='margin: 0px; padding: 5px 0px; outline: none; font-size: 14px; line-height: 30px; font-family: tahoma, arial, "Microsoft YaHei";'>ubuntu出现有线已连接却无法上网，执行下面的命令可以解决</p>
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<span><u>复制代码</u></span>
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代码如下:</p>
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sudo sysctl net.ipv4.conf.default.rp_filter=0<br>
sudo sysctl net.ipv4.conf.all.rp_filter=0<br>
sudo sysctl net.ipv4.ip_forward=1<br>
sudo sysctl net.ipv6.conf.all.forwarding=1</div>
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或者直接追加到/etc/sysctl.conf</p>
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如果遇到“设备未托管”，一般是台式机默认移动ip后禁用网络。</p>
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那么修改/etc/NetworkManager/NetworkManager.conf，设置managed=true,reboot</p>
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有时候遇到即使改了上面四条仍旧无法连接网络，那么就是由于managed=true引起的，再改成false即可连接网页。</p>
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