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阿里云文档 2025-06-13

调用CheckCanAllocateVpcPrivateIpAddress查询交换机下的私网IP可用性

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阿里云文档 2025-05-28

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调用DeleteHaVip接口删除高可用虚拟IP（HaVip）。

阿里云文档 2025-05-28

调用DescribeHaVips查询地域内的高可用虚拟IP(HaVip)

调用DescribeHaVips接口查询指定地域内的高可用虚拟IP（HaVip）。

阿里云文档 2025-03-28

NLB获取客户端真实IP

网络型负载均衡NLB四层监听支持后端服务器获取客户端真实IP地址。通常情况下，在创建后端服务器组时开启客户端地址保持，后端服务器即可获取客户端真实IP地址。但当客户端使用IPv6地址访问IPv4服务、NLB使用TCPSSL监听、NLB挂载IP类型后端服务器组时，需要在NLB监听与后端服务器同时开启Proxy Protocol，后端服务器才可获取客户端真实IP地址。

阿里云文档 2025-03-26

Quick BI通过经典网络添加Hologres数据源报错org.postgresql.util.PSQLException: ERROR: pooler c15e650375330: Reject ip ...

问题描述Quick BI通过经典网络添加Hologres数据源报错“错误信息：org.postgresql.util.PSQLException: ERROR: pooler: c15e650375330: Reject ip *.*.*.*”。解决方案Quick BI通过经典网络连接Hologre...

文章 2024-10-19 来自：开发者社区

Python 网络编程：端口检测与IP解析

Python 网络编程：端口检测与IP解析在现代网络编程中，了解如何检查端口状态以及根据IP地址解析主机名是非常重要的技能。本文将介绍如何使用Python实现这两个功能，并提供相应的示例代码供读者参考。一、检查端口是否打开在网络应用中，判断一个特定端口是否开放可以帮助我们进行故障排查或安全审计。Python的socket库为我们提供了...

文章 2022-02-17 来自：开发者社区

一文搞懂常用的网络概念：域名、静态IP和动态IP、域名解析DNS、动态域名解析DDNS

前言在此之前，我对于网络通讯上的一些基础概念总是含糊其辞，感觉自己知道都又道不出个所以然，总之就是不成体系难以有个整体的把握。因此有了本文，目的是对一些平时颇为关注的网络概念进行总结，描绘出它们的关系，借此也希望能去扫清你的一些障碍，给小伙伴们分享一波。正文如标题所示，会针对每个基础概念分别作出即使，并且尽量给以示例。 IP地址 IP地址为每一个网络和每一台主机分配一个逻辑地址，以此来屏蔽....

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