为了方便技术人员远程操作工控机，我强烈建议准备一台跳板机，单独和它们组成内网，只有在需要的时候再接入网络，大多数时候都不要接入网络。
跳板机的架构不限，但需通过RDP来操作它们，以减轻工控机的运行负担。
实际上，考虑到这一点，完全可以只依赖跳板机来操作工控机。
BY LetITFly News
Telegram is a free app and runs on donations. According to a blog on the telegram: We believe in fast and secure messaging that is also 100% free. Pavel Durov, who shares our vision, supplied Telegram with a generous donation, so we have quite enough money for the time being. If Telegram runs out, we will introduce non-essential paid options to support the infrastructure and finance developer salaries. But making profits will never be an end-goal for Telegram.
The cloud-based messaging platform is also adding Anonymous Group Admins feature. As per Telegram, this feature is being introduced for safer protests. As per the Telegram blog post, users can “Toggle Remain Anonymous in Admin rights to enable Batman mode. The anonymized admin will be hidden in the list of group members, and their messages in the chat will be signed with the group name, similar to channel posts.”
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