技术笔记

TL;DR 进入群晖终端执行这个： sudo vim /volume1/@appdata/syncthing/config.xml 将其中的 password 这一行删掉即可，注意备份。 Refs https://www.reddit.com/r/synology/comments/12vq2qi/syncthing_config_file_location/?tl=zh-hans

Playwright MCP 是一个模型上下文协议（MCP）服务器，使用 Playwright 提供浏览器自动化功能。该服务器使 LLM 能够通过结构化的可访问性快照与网页交互，从而绕过对屏幕截图或视觉调整模型的需求。 ...

现在使用 ncdu 的话，只需要执行一次就可以查询目录大小并排序，且删除文件也很方便，不会出错。 基本用法 安装： # ubuntu sudo apt install ncdu # centos sudo yum install ncdu # macOS brew install ncdu 使用 # 统计当前所在目录及子目录的文件占用情况 ncdu # 统计指定的 /data 目录 ncdu /data # 将 /data 目录的情况输出到 ~/ncdu.txt ncdu /data -o ~/ncdu.txt # 加载本地根据，而不是进行实时统计 ncdu -f ~/ncdu.txt References Linux 命令行工具 ncdu 磁盘占用分析利器 ncdu - brew

问题 最近内部 gitlab 某些项目打开就 500 了， 看 gitlab 报错日志如下： gitlab | {"method":"GET","path":"/xxx/xxx","format":"html","controller":"ProjectsController","action":"show","status":500,"time":"2025-08-28T00:51:41.511Z","params":[{"key":"namespace_id","value":"xxx"},{"key":"id","value":"xxx"}],"remote_ip":"10.17.7.63","user_id":74,"username":"xxxgitlab | {"method":"GET","path":"/xxx/xxx","format":"html","controller":"ProjectsController","action":"show","status":500,"time":"2025-08-28T00:51:41.511Z","params":[{"key":"namespace_id","value":"xxx"},{"key":"id","value":"xxx"}],"remote_ip":"10.17.7.63","user_id":74,"username":"xxx","ua":"Mozilla/5.0 (X11; Linux x86_64; rv:140.0) Gecko/20100101 Firefox/140.0","correlation_id":"01K3Q2F5DXP8Y33B25TW9SSMYM","meta.user":"xxx","meta.project":"xxx/xxx","meta.root_namespace":"storage","meta.caller_id":"ProjectsController#show","meta.remote_ip":"10.17.7.63","meta.feature_category":"projects","meta.client_id":"user/74","redis_calls":21,"redis_duration_s":0.007123,"redis_read_bytes":2997,"redis_write_bytes":2370,"redis_cache_calls":20,"redis_cache_duration_s":0.006591,"redis_cache_read_bytes":2816,"redis_cache_write_bytes":1035,"redis_shared_state_calls":1,"redis_shared_state_duration_s":0.000532,"redis_shared_state_read_bytes":181,"redis_shared_state_write_bytes":1335,"db_count":41,"db_write_count":0,"db_cached_count":10,"cpu_s":2.291446,"mem_objects":394125,"mem_bytes":52397272,"mem_mallocs":198648,"mem_total_bytes":68162272,"queue_duration_s":0.009214,"exception.class":"Rack::Timeout::RequestTimeoutException","exception.message":"Request ran for longer than 60000ms","exception.backtrace":["lib/gitlab/url_blocker.rb:113:in `getaddrinfo'","lib/gitlab/url_blocker.rb:113:in `get_address_info'","lib/gitlab/url_blocker.rb:48:in `validate!'","app/validators/addressable_url_validator.rb:83:in `validate_each'","app/models/badge.rb:43:in `build_rendered_url'","app/models/badge.rb:36:in `rendered_image_url'","app/models/badges/project_badge.rb:15:in `rendered_image_url'","app/views/projects/_home_panel.html.haml:93","app/views/projects/_home_panel.html.haml:89","app/views/projects/_home_panel.html.haml:87","app/views/projects/show.html.haml:14","app/controllers/application_controller.rb:128:in `render'","app/controllers/application_controller.rb:538:in `block in allow_gitaly_ref_name_caching'","lib/gitlab/gitaly_client.rb:341:in `allow_ref_name_caching'","app/controllers/application_controller.rb:537:in `allow_gitaly_ref_name_caching'","app/controllers/application_controller.rb:487:in `set_current_admin'","lib/gitlab/session.rb:11:in `with_session'","app/controllers/application_controller.rb:478:in `set_session_storage'","lib/gitlab/i18n.rb:99:in `with_locale'","lib/gitlab/i18n.rb:105:in `with_user_locale'","app/controllers/application_controller.rb:472:in `set_locale'","app/controllers/application_controller.rb:466:in `set_current_context'","lib/gitlab/metrics/elasticsearch_rack_middleware.rb:16:in `call'","lib/gitlab/middleware/rails_queue_duration.rb:33:in `call'","lib/gitlab/metrics/rack_middleware.rb:16:in `block in call'","lib/gitlab/metrics/web_transaction.rb:21:in `run'","lib/gitlab/metrics/rack_middleware.rb:16:in `call'","lib/gitlab/middleware/speedscope.rb:13:in `call'","lib/gitlab/request_profiler/middleware.rb:17:in `call'","lib/gitlab/jira/middleware.rb:19:in `call'","lib/gitlab/middleware/go.rb:20:in `call'","lib/gitlab/etag_caching/middleware.rb:21:in `call'","lib/gitlab/middleware/multipart.rb:172:in `call'","lib/gitlab/middleware/read_only/controller.rb:50:in `call'","lib/gitlab/middleware/read_only.rb:18:in `call'","lib/gitlab/middleware/same_site_cookies.rb:27:in `call'","lib/gitlab/middleware/handle_malformed_strings.rb:21:in `call'","lib/gitlab/middleware/basic_health_check.rb:25:in `call'","lib/gitlab/middleware/handle_ip_spoof_attack_error.rb:25:in `call'","lib/gitlab/middleware/request_context.rb:21:in `call'","config/initializers/fix_local_cache_middleware.rb:11:in `call'","lib/gitlab/middleware/rack_multipart_tempfile_factory.rb:19:in `call'","lib/gitlab/metrics/requests_rack_middleware.rb:74:in `call'","lib/gitlab/middleware/release_env.rb:12:in `call'"],"db_duration_s":0.23847,"view_duration_s":0.0,"duration_s":73.05203}","ua":"Mozilla/5.0 (X11; Linux x86_64; rv:140.0) Gecko/20100101 Firefox/140.0","correlation_id":"01K3Q2F5DXP8Y33B25TW9SSMYM","meta.user":"xxx","meta.project":"xxx/xxx","meta.root_namespace":"storage","meta.caller_id":"ProjectsController#show","meta.remote_ip":"10.17.7.63","meta.feature_category":"projects","meta.client_id":"user/74","redis_calls":21,"redis_duration_s":0.007123,"redis_read_bytes":2997,"redis_write_bytes":2370,"redis_cache_calls":20,"redis_cache_duration_s":0.006591,"redis_cache_read_bytes":2816,"redis_cache_write_bytes":1035,"redis_shared_state_calls":1,"redis_shared_state_duration_s":0.000532,"redis_shared_state_read_bytes":181,"redis_shared_state_write_bytes":1335,"db_count":41,"db_write_count":0,"db_cached_count":10,"cpu_s":2.291446,"mem_objects":394125,"mem_bytes":52397272,"mem_mallocs":198648,"mem_total_bytes":68162272,"queue_duration_s":0.009214,"exception.class":"Rack::Timeout::RequestTimeoutException","exception.message":"Request ran for longer than 60000ms","exception.backtrace":["lib/gitlab/url_blocker.rb:113:in `getaddrinfo'","lib/gitlab/url_blocker.rb:113:in `get_address_info'","lib/gitlab/url_blocker.rb:48:in `validate!'","app/validators/addressable_url_validator.rb:83:in `validate_each'","app/models/badge.rb:43:in `build_rendered_url'","app/models/badge.rb:36:in `rendered_image_url'","app/models/badges/project_badge.rb:15:in `rendered_image_url'","app/views/projects/_home_panel.html.haml:93","app/views/projects/_home_panel.html.haml:89","app/views/projects/_home_panel.html.haml:87","app/views/projects/show.html.haml:14","app/controllers/application_controller.rb:128:in `render'","app/controllers/application_controller.rb:538:in `block in allow_gitaly_ref_name_caching'","lib/gitlab/gitaly_client.rb:341:in `allow_ref_name_caching'","app/controllers/application_controller.rb:537:in `allow_gitaly_ref_name_caching'","app/controllers/application_controller.rb:487:in `set_current_admin'","lib/gitlab/session.rb:11:in `with_session'","app/controllers/application_controller.rb:478:in `set_session_storage'","lib/gitlab/i18n.rb:99:in `with_locale'","lib/gitlab/i18n.rb:105:in `with_user_locale'","app/controllers/application_controller.rb:472:in `set_locale'","app/controllers/application_controller.rb:466:in `set_current_context'","lib/gitlab/metrics/elasticsearch_rack_middleware.rb:16:in `call'","lib/gitlab/middleware/rails_queue_duration.rb:33:in `call'","lib/gitlab/metrics/rack_middleware.rb:16:in `block in call'","lib/gitlab/metrics/web_transaction.rb:21:in `run'","lib/gitlab/metrics/rack_middleware.rb:16:in `call'","lib/gitlab/middleware/speedscope.rb:13:in `call'","lib/gitlab/request_profiler/middleware.rb:17:in `call'","lib/gitlab/jira/middleware.rb:19:in `call'","lib/gitlab/middleware/go.rb:20:in `call'","lib/gitlab/etag_caching/middleware.rb:21:in `call'","lib/gitlab/middleware/multipart.rb:172:in `call'","lib/gitlab/middleware/read_only/controller.rb:50:in `call'","lib/gitlab/middleware/read_only.rb:18:in `call'","lib/gitlab/middleware/same_site_cookies.rb:27:in `call'","lib/gitlab/middleware/handle_malformed_strings.rb:21:in `call'","lib/gitlab/middleware/basic_health_check.rb:25:in `call'","lib/gitlab/middleware/handle_ip_spoof_attack_error.rb:25:in `call'","lib/gitlab/middleware/request_context.rb:21:in `call'","config/initializers/fix_local_cache_middleware.rb:11:in `call'","lib/gitlab/middleware/rack_multipart_tempfile_factory.rb:19:in `call'","lib/gitlab/metrics/requests_rack_middleware.rb:74:in `call'","lib/gitlab/middleware/release_env.rb:12:in `call'"],"db_duration_s":0.23847,"view_duration_s":0.0,"duration_s":73.05203} 问题分析 经过 claude 的分析，发现是 badge 加载失败导致的 ...

harbor 集成 Chartmuseum 实现 helm 图表的存储。 Chartmuseum 对于图表索引缓存的处理有问题，删除、重传 chart 不会刷新索引，需要手动刷新。 TL;DR 操作步骤如下： 停止 harbor，例如： docker compose stop 删除 /data/chart_storage/{project}/index-cache.yaml 删除 /data/redis/* 启动 harbor，例如： docker compose up -d 记得备份。 ...

--exclude=FILE_PATTERN skip files and directories matching FILE_PATTERN --exclude-from=FILE skip files matching any file pattern from FILE --exclude-dir=PATTERN directories that match PATTERN will be skipped. Refs: grep时排除指定的文件和目录

By TL.S 问题背景 在Debian 11 + Proxmox VE环境中，当配置LACP（Link Aggregation Control Protocol）绑定接口时，有一个环境遇到一个令人困惑的问题：相同硬件配置的多台服务器上，所有服务器的同名bond接口都被分配了相同的MAC地址。这种情况会导致严重的网络连接问题，特别是在集群环境中。 ...

CLAUDE.md（规则文件）＝ 冰箱家规 先把“进门换鞋、10点关灯、刀具归位”写清楚，Claude 做任何事之前都要看一遍并遵守。 Task（多任务并行）＝ 多台家电同时干活 扫地机器人+洗碗机+空调一起开工，Claude 同时跑多个任务，效率翻倍。 ...

引言 很多遗留系统都采用 CentOS 系统，经常出现忘记密码，故在此记录方法。 以下内容转自 CentOS 7 重置 root 密码 CentOS 7 重置 root 密码 与之前的 CentOS 5、 CentOS 6 不同的是，当忘记 CentOS 7 root 密码，并采用 GRUB2 为启动器时， 将无法通过单用户模式重置 root 密码，下面介绍 CentOS 7 如何重置 root 密码。 ...

telnet 的退出 分成两种，一中是在telnet命令中，直接输入 quit 或者 q 即可退出。 二种情况是 已经进入了端口中，需要先从端口中退出，然后再退出telnet。 ...