https://www.soulmap.cn/categories/network/ Recent content in Network on 时光纪念馆 Hugo -- gohugo.io zh Thu, 07 Dec 2023 15:38:08 +0800 https://www.soulmap.cn/posts/ops/windows-network-refuse/ Thu, 07 Dec 2023 15:38:08 +0800 https://www.soulmap.cn/posts/ops/windows-network-refuse/ 一、现象 外网连公司内部的一个sftp服务失败，提示如下： kex_exchange_identification: read: Connection reset by peer Connection reset by xxxx port 21888 Connection closed. Connection closed 二、初步排除 首先检查网络连通性，发现ping正常，但是telnet连接上后立刻断开，如下： $ telnet xxxxx 21888 Trying xxxxx... Connected to xxxxx. Escape character is '^]'. Connection closed by foreign host. 根据经验，请求已经到达了服务端，但是因为某些原因服务端把其连接给中