feat: add admin publishing workflow and yar theme

Add Go/Postgres admin APIs, Angular admin UI, manual build flow, asset uploads, markdown import/export, configurable slug generation, and the Yar reading theme. Exclude local docs and generated development artifacts from version control.
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yarnom 2026-06-01 15:48:04 +08:00
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---
id: 53dd96ff-65e1-4ee9-8cb4-c8130e2eb0d5
slug: nfs-mount-connection-timed-out
title: '[NFS] mount: Connection timed out'
summary: ""
status: published
tags: []
cover: ""
version: 1
slug_source: manual
slug_locked: true
published_at: "2023-04-06T20:09:29+08:00"
created_at: "2023-04-06T20:09:29+08:00"
updated_at: "2025-12-31T23:58:09+08:00"
---
## 问题描述
Linux 服务端和 Arm 开发板客户端进行 NFS 服务的连接。
Linux 和 Arm 开发板之间能ping通并且处于同一网端且掩码、网口相同但是在执行下面的程序时发生超时错误。
在服务端的nfs配置完全正确的情况下Arm开发板还是无法正确连接nfs服务器。
```bash
[root@FORLINX6410]# mount -t nfs -o nolock,hard 192.168.1.5:/home/yarnom/nfs /mnt
mount: mounting 192.168.1.5:/home/yarnom/nfs on /mnt failed: Connection timed out
```
## 解决
这个问题困扰了我两天终于在这个[帖子](https://stackoverflow.com/questions/45938202/mount-nfs-connection-timed-out-on-ubuntu-14-04-1-lts)里找到了解决方案。
> Mount the NFS filesystem using the TCP protocol instead of the default UDP protocol. Many NFS servers only support UDP.
这是在NFSv3中添加了对TCP协议的支持
总之我尝试了下面的命令使用了tcp协议
```bash
$ mount -t nfs -o nolock,proto=tcp,port=2049 192.168.1.5:/home/yarnom/nfs /mnt
```
这个协议最终使我正确连接上了nfs服务器。