telnet 使用UDP

telnet不使用UDP协议，而是使用TCP协议进行通信。TCP协议是一种可靠的、面向连接的协议，而UDP协议是一种无连接的协议，不保证数据的可靠传输。因此，telnet命令使用的是TCP协议来实现远程登录和管理网络设备。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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- *1* [测试tcp和udp端口连通性](https://blog.csdn.net/qq_44659804/article/details/128024435)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v93^chatsearchT3_1"}}] [.reference_item style="max-width: 50%"]
- *2* *3* [SMTP、TCP协议、UDP协议、TELNET（常见协议详解）](https://blog.csdn.net/yifei_maple/article/details/129184702)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v93^chatsearchT3_1"}}] [.reference_item style="max-width: 50%"]
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