Server: jpv
IP: 66.42.42.159
OS: CentOS 7
Purpose: Minimal server (SSH + Postfix only)

Services:
  - SSH (port 22)
  - Postfix (port 25, local only)
  - RPCBind (port 111)
  - No web server, no databases, no Docker, no proxy services

Key Paths:
  - /root/ - Scripts (bbr3.sh, l2tp.sh, xray.sh, etc.)
  - /etc/postfix/ - Postfix mail configs (standard, no custom setup)

Backup Files:
  - jpv-backup.tar.gz (112K) - Contains /root/*.sh and /etc/postfix/

Note: Bare minimum server. No custom applications. Scripts in /root/ are standard deployment scripts.

Recovery Steps:
  1. Install base packages as needed
  2. Restore: tar -xzf jpv-backup.tar.gz -C /
  3. Postfix can be reconfigured from /etc/postfix/ if needed

=== 7/31补充 ===
- jpv-root-supplement-20260731.tar.gz (4K) - /root 增量 (l2tp.sh.1/l2tp.sh.2/l2tp.log/anaconda-ks.cfg等6文件)
- 注: 实际有 xl2tpd 服务运行中 (README原述仅SSH+Postfix)