Viet Nguyen [W12] W12 — VPS setup: SSH key-only + fail2ban + block management ports NGAY ⚠️ HIGH | Category: Web IT | ID: W12 | Owner: CEO W12 — VPS setup: SSH key-only + fail2ban + block management ports NGAY Tóm tắt VPS mới có 9,912 failed SSH auth attempts TRƯỚC khi install fail2ban. S... Web & IT 15 thg 3, 2026 Knowledge Base
Viet Nguyen [W11] W11 — Docker bypasses UFW: published ports không được bảo vệ ⚠️ HIGH | Category: Web IT | ID: W11 | Owner: CEO W11 — Docker bypasses UFW: published ports không được bảo vệ Tóm tắt Docker can thiệp trực tiếp vào iptables, bỏ qua UFW. Ports publish bởi Docker con... Web & IT 15 thg 3, 2026 Knowledge Base
Viet Nguyen [W10] W10 — mysqldump PHẢI dùng --single-transaction để không lock site 📌 MEDIUM | Category: Web IT | ID: W10 | Owner: CEO W10 — mysqldump PHẢI dùng --single-transaction để không lock site Tóm tắt Backup WordPress DB mà không dùng --single-transaction → tables bị lock → s... Web & IT 15 thg 3, 2026 Knowledge Base
Viet Nguyen [W09] W09 — rclone delete đã recursive by default ℹ️ LOW | Category: Web IT | ID: W09 | Owner: CEO W09 — rclone delete đã recursive by default Tóm tắt rclone delete luôn recursive. Flag --recursive không tồn tại hoặc bị ignore tùy version. Bỏ flag nà... Web & IT 15 thg 3, 2026 Knowledge Base
Viet Nguyen [W08] W08 — Query Monitor symlink broken sau migration ℹ️ LOW | Category: Web IT | ID: W08 | Owner: CEO W08 — Query Monitor symlink broken sau migration Tóm tắt Plugin Query Monitor tạo symlink wp-content/db.php trỏ về Hostinger path. Sau migration → syml... Web & IT 15 thg 3, 2026 Knowledge Base
Viet Nguyen [W07] W07 — Wordfence .htaccess path cu Hostinger sau migration 📌 MEDIUM | Category: Web IT | ID: W07 | Owner: CEO W07 — Wordfence .htaccess path cu Hostinger sau migration Tom tat Sau migration tu Hostinger, .htaccess van chua path cu: php_value auto_prepend_file... Web & IT 15 thg 3, 2026 Knowledge Base
Viet Nguyen [W06] W06 — Script Python ten ssl.py shadow stdlib ssl module 📌 MEDIUM | Category: Web IT | ID: W06 | Owner: CEO W06 — Script Python ten ssl.py shadow stdlib ssl module Tom tat File ten ssl.py shadow Python built-in ssl module. import ssl -> import local file ->... Web & IT 15 thg 3, 2026 Knowledge Base
Viet Nguyen [W05] W05 — WordPress trong Docker thay HTTP tu reverse proxy 📌 MEDIUM | Category: Web IT | ID: W05 | Owner: CEO W05 — WordPress trong Docker thay HTTP tu reverse proxy Tom tat NPM (reverse proxy) ket noi WordPress qua HTTP noi bo. WordPress nghi site la HTTP ->... Web & IT 15 thg 3, 2026 Knowledge Base
Viet Nguyen [W04] W04 — NPM nginx_online=False khong trigger rebuild config ⚠️ HIGH | Category: Web IT | ID: W04 | Owner: CEO W04 — NPM nginx_online=False khong trigger rebuild config Tom tat Khi proxy host co SSL cert error truoc do, NPM giu nginx_online=False . Update cert_... Web & IT 15 thg 3, 2026 Knowledge Base
Viet Nguyen [W03] W03 — NPM cert upload API tra 200 nhung file khong ghi disk ⚠️ HIGH | Category: Web IT | ID: W03 | Owner: CEO W03 — NPM cert upload API tra 200 nhung file khong ghi disk Tom tat Upload Cloudflare Origin Certificate len Nginx Proxy Manager API tra status 200, n... Web & IT 15 thg 3, 2026 Knowledge Base
Viet Nguyen [W02] W02 — Cloudflare security rules chặn form submission ⚠️ HIGH | Category: Web IT | ID: W02 | Owner: CEO W02 — Cloudflare security rules chặn form submission Tóm tắt Cloudflare proxy có thể chặn form submission (checkout, contact form) nếu security rules ... Web & IT 15 thg 3, 2026 Knowledge Base
Viet Nguyen [W01] W01 — Extension Supermode chặn Google bot indexing ⚠️ HIGH | Category: Web IT | ID: W01 | Owner: CEO W01 — Extension Supermode chặn Google bot indexing Tóm tắt Extension "Supermode" trên browser có thể fight/chặn bot — bao gồm Googlebot. Kết quả: blog... Web & IT 15 thg 3, 2026 Knowledge Base
![[W12] W12 — VPS setup: SSH key-only + fail2ban + block management ports NGAY](/web/image/blog.post/35/author_avatar/%5BW12%5D%20W12%20%E2%80%94%20VPS%20setup:%20SSH%20key-only%20%2B%20fail2ban%20%2B%20block%20management%20ports%20NGAY?unique=9de5c6a)
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