diff --git a/.obsidian/plugins/obsidian-git/data.json b/.obsidian/plugins/obsidian-git/data.json
index b3409c6..be93772 100644
--- a/.obsidian/plugins/obsidian-git/data.json
+++ b/.obsidian/plugins/obsidian-git/data.json
@@ -50,7 +50,9 @@
     },
     "textColorCss": "var(--text-muted)",
     "ignoreWhitespace": false,
-    "gutterSpacingFallbackLength": 5
+    "gutterSpacingFallbackLength": 5,
+    "lastShownAuthorDisplay": "initials",
+    "lastShownDateTimeFormatOptions": "date"
   },
   "autoCommitMessage": "vault backup: {{date}}"
 }
\ No newline at end of file
diff --git a/.obsidian/workspace.json b/.obsidian/workspace.json
index 207e8af..a6ba32f 100644
--- a/.obsidian/workspace.json
+++ b/.obsidian/workspace.json
@@ -4,16 +4,16 @@
     "type": "split",
     "children": [
       {
-        "id": "22b42069fa3e3c3d",
+        "id": "1dfb6a46a1484898",
         "type": "tabs",
         "children": [
           {
-            "id": "b395958abd22bf21",
+            "id": "3122a401b1a08a27",
             "type": "leaf",
             "state": {
               "type": "markdown",
               "state": {
-                "file": "_posts/engineering/2024-09-10-linux(wget)国内批量下载huggingface模型shell脚本.md",
+                "file": "_posts/pool/2024-09-12-记一次离奇的linux-ssh登录bug.md",
                 "mode": "source",
                 "source": false
               }
@@ -69,7 +69,7 @@
       }
     ],
     "direction": "horizontal",
-    "width": 217.5,
+    "width": 321.5,
     "collapsed": true
   },
   "right": {
@@ -86,7 +86,7 @@
             "state": {
               "type": "backlink",
               "state": {
-                "file": "_posts/engineering/2024-09-10-linux(wget)国内批量下载huggingface模型shell脚本.md",
+                "file": "_posts/pool/2024-09-12-记一次离奇的linux-ssh登录bug.md",
                 "collapseAll": false,
                 "extraContext": false,
                 "sortOrder": "alphabetical",
@@ -103,7 +103,7 @@
             "state": {
               "type": "outgoing-link",
               "state": {
-                "file": "_posts/engineering/2024-09-10-linux(wget)国内批量下载huggingface模型shell脚本.md",
+                "file": "_posts/pool/2024-09-12-记一次离奇的linux-ssh登录bug.md",
                 "linksCollapsed": false,
                 "unlinkedCollapsed": true
               }
@@ -126,7 +126,7 @@
             "state": {
               "type": "outline",
               "state": {
-                "file": "_posts/engineering/2024-09-10-linux(wget)国内批量下载huggingface模型shell脚本.md"
+                "file": "_posts/pool/2024-09-12-记一次离奇的linux-ssh登录bug.md"
               }
             }
           },
@@ -156,10 +156,12 @@
       "obsidian-git:Open Git source control": false
     }
   },
-  "active": "b395958abd22bf21",
+  "active": "3122a401b1a08a27",
   "lastOpenFiles": [
-    "_posts/engineering/2024-09-09-linux新机器安装nvidia驱动.md",
     "_posts/engineering/2024-09-11-git版本管理常见技巧.md",
+    "_posts/pool/2024-09-12-记一次离奇的linux-ssh登录bug.md",
+    "_posts/engineering/2024-09-10-linux(wget)国内批量下载huggingface模型shell脚本.md",
+    "_posts/engineering/2024-09-09-linux新机器安装nvidia驱动.md",
     "_posts/engineering/2024-09-05-免费且私密的联网搜索组件duckduckgo.md",
     "assets/img/Dingtalk_20240906103705.jpg",
     "assets/img/Dingtalk_20240906094335.jpg",
@@ -172,7 +174,6 @@
     "_posts/engineering/2024-09-06-github_page+obsidian实现个人笔记云管理.md",
     "_posts/engineering/2024-09-04-windows命令行下载url文件.md",
     "_posts/engineering/2024-09-04-conda重命名.md",
-    "_posts/engineering/2024-09-10-linux(wget)国内批量下载huggingface模型shell脚本.md",
     "_posts/engineering/2024-09-06-windows无cpu启动stable-diffusion API接口.md",
     "_posts/engineering/2024-08-13-transformers.Trainer中wandb的关闭.md",
     "_posts/pool/2024-08-13-generator.md",
diff --git "a/_posts/pool/2024-09-12-\350\256\260\344\270\200\346\254\241\347\246\273\345\245\207\347\232\204linux-ssh\347\231\273\345\275\225bug.md" "b/_posts/pool/2024-09-12-\350\256\260\344\270\200\346\254\241\347\246\273\345\245\207\347\232\204linux-ssh\347\231\273\345\275\225bug.md"
new file mode 100644
index 0000000..a2a4203
--- /dev/null
+++ "b/_posts/pool/2024-09-12-\350\256\260\344\270\200\346\254\241\347\246\273\345\245\207\347\232\204linux-ssh\347\231\273\345\275\225bug.md"
@@ -0,0 +1,48 @@
+---
+title: 记一次离奇的linux-ssh登录bug
+author: X
+date: 2024-09-12 17:16:10 +0800
+categories:
+  - debug
+  - linux
+tags:
+  - linux
+  - ssh
+---
+遇到了一个脑瘫错误，查了半天查到一样的问题
+
+https://askubuntu.com/questions/1404304/sudo-su-command-not-working-su-failed-to-execute-root-no-such-file-or-director
+
+目前已根据文档中提到的方法解决，即修改`/etc/passwd`文件中的`root:x:0:0:root:/root:root`。当然，在我的问题里，这个错误行是`root:x:0:0:root:/root:myusername`
+
+具体是什么原因引起的已经不可追溯了，推测与我想修改新用户的shell时执行的一些操作有关，例如`chsh`相关操作。
+
+实际上这个问题并不是我在切换用户时发现的，而是连接ssh时突然连不上了，报错belike：
+
+```
+[16:40:45.445] Got some output, clearing connection timeout
+[16:40:45.642] > root@xxxhost: Permission denied (publickey).
+[16:40:45.663] > 过程试图写入的管道不存在。
+```
+
+还好此时我还有一个vscode窗口是连着这个服务器的root账号的，真是吓出一身冷汗，立刻开始搜索办法。结果当然是五花八门，笔者大量使用`sudoedit /etc/ssh/sshd_config`来修改ssh设定，依旧没有任何用处，期间还检查了`.ssh`下的公钥，也都是正确的。
+
+所以说debug是非常看运气的，主要这个环节的报错是**Permission denied (publickey)**，可以说相当具有迷惑性了，想到切换用户也只是病急乱投医地碰运气，思路是回溯出错环节->之前设置新用户相关时，发现切换用户需要密码，因此重设了root密码->想着再切换一次用户（这个思路是多么离奇，正常来说是完全无用的行为）->发现切不回去了->发现事情真相……
+
+是的，聪明的你已经发现了，最终错因与重设root密码这一操作完全没有关系，这就是debug的魅力，即毫无方法论，除非你有很强的知识储备。然而知识不就是在无数次没头脑的debug中学习的吗？
+
+另，补充修改系统文件的命令：
+```bash
+sudo nano /etc/passwd
+```
+或：
+```bash
+sudoedit /etc/passwd
+```
+
+编辑完成后，`ctrl+X`保存退出。
+
+有时修改前也要注意备份，养成好习惯：
+```bash
+sudo cp /etc/passwd /etc/passwd.bak
+```
\ No newline at end of file