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Huijuan, Wang
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Reviewed-by: Pristromskaia, Margarita <margarita.pristromskaia@t-systems.com> Co-authored-by: Huijuan, Wang <wanghuijuan738@noreply.gitea.eco.tsi-dev.otc-service.com> Co-committed-by: Huijuan, Wang <wanghuijuan738@noreply.gitea.eco.tsi-dev.otc-service.com>
12 lines
1.0 KiB
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12 lines
1.0 KiB
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<a name="EN-US_TOPIC_0013771102"></a><a name="EN-US_TOPIC_0013771102"></a>
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<h1 class="topictitle1">What Are the Precautions for Using <span id="text4948199163617">ECS</span>s?</h1>
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<div id="body1432111032874"><ul id="EN-US_TOPIC_0013771102__ul11797043366"><li id="EN-US_TOPIC_0013771102__li157961473617">Do not upgrade <span id="EN-US_TOPIC_0013771102__text15711237371">ECS</span> kernel or OS versions. If you want to upgrade the main OS version, for example, from CentOS 7.2 to Cent OS 7.3, use the provided OS changing function.</li><li id="EN-US_TOPIC_0013771102__li157961646362">Do not uninstall the performance optimization software pre-installed on your <span id="EN-US_TOPIC_0013771102__text1961115414379">ECS</span>s.</li><li id="EN-US_TOPIC_0013771102__li9797194163612">Do not change NIC MAC addresses. Otherwise, the network connection will fail.</li></ul>
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<div class="parentlink"><strong>Parent topic:</strong> <a href="en-us_topic_0030930805.html">Product Consulting FAQ</a></div>
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