Debian 网卡重启失败 修复记录
<p>给 Debian 增加了 ipv6 之后，service networking restart 失败，网卡丢失。</p><div class="cnblogs_Highlighter">
<pre class="brush:bash;gutter:true;">nano /etc/network/interfaces
iface ens18 inet6 static
address 2a10:cc40:233:136::1
netmask 64
gateway 2a10:cc40:233::1
# gateway fe80::1
</pre>
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<p> 重启网卡后网卡丢失</p>
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<pre class="brush:bash;gutter:true;">root@vps-2299:/etc/network# service networking restart
Job for networking.service failed because the control brocess exited with error code.
See "systemctl status networking.service" and "journalctl -xer for details
root@vps- 2299:/etc/network#
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<p><img src="https://img2024.cnblogs.com/blog/1137018/202412/1137018-20241207192558309-1836315002.png" alt=""></p>
<p> </p>
<p> 根据提示 执行 systemctl status networking.service</p>
<div class="cnblogs_code">
<pre>root@vps-<span style="color: rgba(128, 0, 128, 1)">2299</span>:/etc/<span style="color: rgba(0, 0, 0, 1)">network# systemctl status networking.service
networking. service </span>-<span style="color: rgba(0, 0, 0, 1)"> Raise network interfaces
Loaded: loaded (</span>/lib/systemd/system/networking.service; enabled; vendor <span style="color: rgba(0, 0, 255, 1)">pr</span>><span style="color: rgba(0, 0, 0, 1)">
Active: <span style="color: rgba(255, 0, 0, 1)">failed</span> (Result: exit</span>-code) since sat <span style="color: rgba(128, 0, 128, 1)">2024</span>-<span style="color: rgba(128, 0, 128, 1)">12</span>-<span style="color: rgba(128, 0, 128, 1)">07</span> <span style="color: rgba(128, 0, 128, 1)">10</span>:<span style="color: rgba(128, 0, 128, 1)">49</span>:<span style="color: rgba(128, 0, 128, 1)">30</span> UTC; 1min><span style="color: rgba(0, 0, 0, 1)">
Docs: </span><span style="color: rgba(0, 0, 255, 1)">man</span>:interfaces(<span style="color: rgba(128, 0, 128, 1)">5</span><span style="color: rgba(0, 0, 0, 1)">)
Process: </span><span style="color: rgba(128, 0, 128, 1)">303864</span> ExecStart=/sbin/ifup -a --read-environment <span style="color: rgba(255, 0, 0, 1)">(code=exited, st</span>><span style="color: rgba(0, 0, 0, 1)">
Main PID: </span><span style="color: rgba(128, 0, 128, 1)">303864</span> (code=exited, status=<span style="color: rgba(128, 0, 128, 1)">1</span>/<span style="color: rgba(0, 0, 0, 1)">FAILURE)
CPU: 7ms
lines </span><span style="color: rgba(128, 0, 128, 1)">1</span>-<span style="color: rgba(128, 0, 128, 1)">7</span>/<span style="color: rgba(128, 0, 128, 1)">7</span> (END) </pre>
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<p><img src="https://img2024.cnblogs.com/blog/1137018/202412/1137018-20241207193541102-254582833.png" alt=""></p>
<p> </p>
<p>然后 查看 nano /lib/systemd/system/networking.service ，发现这纯属浪费时间</p>
<p>将 TimeoutStartSec=5min 改为 TimeoutStartSec=5s</p>
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<pre>systemctl daemon-<span style="color: rgba(0, 0, 0, 1)">reload
systemctl enable networking.service</span></pre>
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<p>最后 ifup -a ，才发现是 <em id="__mceDel"> /etc/iptables.up.rules 丢失，导致网络无法重启</em></p>
<div class="cnblogs_code">
<pre>root@vps-<span style="color: rgba(128, 0, 128, 1)">2299</span>:/etc/network# ifup -<span style="color: rgba(0, 0, 0, 1)">a
</span>/etc/network/<span style="color: rgba(0, 0, 255, 1)">if</span>-pre-up.d/iptables: line <span style="color: rgba(128, 0, 128, 1)">2</span>: /etc/iptables.up.rules: No such <span style="color: rgba(0, 0, 255, 1)">file</span><span style="color: rgba(0, 0, 0, 1)"> or directory
run</span>-parts: /etc/network/<span style="color: rgba(0, 0, 255, 1)">if</span>-pre-up.d/iptables exited with retuan code <span style="color: rgba(128, 0, 128, 1)">1</span><span style="color: rgba(0, 0, 0, 1)">
ifup: pre</span>-<span style="color: rgba(0, 0, 0, 1)">up script failed
root@vps</span>-<span style="color: rgba(128, 0, 128, 1)">2299</span>:/etc/network# </pre>
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<p><img src="https://img2024.cnblogs.com/blog/1137018/202412/1137018-20241207194727229-943887166.png" alt=""></p>
<p> </p>
<div class="cnblogs_code">
<pre><strong><span style="color: rgba(0, 0, 255, 1)">touch</span> /etc/iptables.up.rules</strong></pre>
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<p>之后，重启网卡成功</p>
<p> </p><br><br>
来源：https://www.cnblogs.com/yisuo/p/18592597
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