Update docs

README-zh.md

@@ -223,9 +223,9 @@ wget https://git.io/vpnupgrade -qO vpnup.sh && sudo sh vpnup.sh
 
 请参见 [管理 VPN 用户](docs/manage-users-zh.md)。
 
-- [查看或更改 IPsec PSK](docs/manage-users-zh.md#查看或更改-ipsec-psk)
-- [查看 VPN 用户](docs/manage-users-zh.md#查看-vpn-用户)
 - [使用辅助脚本管理 VPN 用户](docs/manage-users-zh.md#使用辅助脚本管理-vpn-用户)
+- [查看 VPN 用户](docs/manage-users-zh.md#查看-vpn-用户)
+- [查看或更改 IPsec PSK](docs/manage-users-zh.md#查看或更改-ipsec-psk)
 - [手动管理 VPN 用户](docs/manage-users-zh.md#手动管理-vpn-用户)
 
 ## 高级用法
@@ -240,7 +240,7 @@ wget https://git.io/vpnupgrade -qO vpnup.sh && sudo sh vpnup.sh
 - [VPN 分流](docs/advanced-usage-zh.md#vpn-分流)
 - [访问 VPN 服务器的网段](docs/advanced-usage-zh.md#访问-vpn-服务器的网段)
 - [更改 IPTables 规则](docs/advanced-usage-zh.md#更改-iptables-规则)
-- [部署 Google BBR 拥塞控制算法](docs/advanced-usage-zh.md#部署-google-bbr-拥塞控制算法)
+- [部署 Google BBR 拥塞控制](docs/advanced-usage-zh.md#部署-google-bbr-拥塞控制)
 
 ## 卸载说明
 

README.md

@@ -221,16 +221,16 @@ The latest supported Libreswan version is `4.6`. Check installed version: `ipsec
 
 ## Manage VPN users
 
-See [Manage VPN users](docs/manage-users.md). 请参见 [管理 VPN 用户](docs/manage-users-zh.md)。
+See [Manage VPN users](docs/manage-users.md).
 
-- [View or update the IPsec PSK](docs/manage-users.md#view-or-update-the-ipsec-psk)
-- [View VPN users](docs/manage-users.md#view-vpn-users)
 - [Manage VPN users using helper scripts](docs/manage-users.md#manage-vpn-users-using-helper-scripts)
+- [View VPN users](docs/manage-users.md#view-vpn-users)
+- [View or update the IPsec PSK](docs/manage-users.md#view-or-update-the-ipsec-psk)
 - [Manually manage VPN users](docs/manage-users.md#manually-manage-vpn-users)
 
 ## Advanced usage
 
-See [Advanced usage](docs/advanced-usage.md). 请参见 [高级用法](docs/advanced-usage-zh.md)。
+See [Advanced usage](docs/advanced-usage.md).
 
 - [Use alternative DNS servers](docs/advanced-usage.md#use-alternative-dns-servers)
 - [DNS name and server IP changes](docs/advanced-usage.md#dns-name-and-server-ip-changes)
@@ -240,11 +240,11 @@ See [Advanced usage](docs/advanced-usage.md). 请参见 [高级用法](docs/adva
 - [Split tunneling](docs/advanced-usage.md#split-tunneling)
 - [Access VPN server's subnet](docs/advanced-usage.md#access-vpn-servers-subnet)
 - [Modify IPTables rules](docs/advanced-usage.md#modify-iptables-rules)
-- [Deploy Google BBR congestion control algorithm](docs/advanced-usage.md#deploy-google-bbr-congestion-control-algorithm)
+- [Deploy Google BBR congestion control](docs/advanced-usage.md#deploy-google-bbr-congestion-control)
 
 ## Uninstallation
 
-See [Uninstall the VPN](docs/uninstall.md). 请参见 [卸载 VPN](docs/uninstall-zh.md)。
+See [Uninstall the VPN](docs/uninstall.md).
 
 - [Uninstall using helper script](docs/uninstall.md#uninstall-using-helper-script)
 - [Manually uninstall the VPN](docs/uninstall.md#manually-uninstall-the-vpn)

docs/advanced-usage-zh.md

@@ -10,7 +10,7 @@
 * [VPN 分流](#vpn-分流)
 * [访问 VPN 服务器的网段](#访问-vpn-服务器的网段)
 * [更改 IPTables 规则](#更改-iptables-规则)
-* [部署 Google BBR 拥塞控制算法](#部署-google-bbr-拥塞控制算法)
+* [部署 Google BBR 拥塞控制](#部署-google-bbr-拥塞控制)
 
 ## 使用其他的 DNS 服务器
 
@@ -279,7 +279,7 @@ iptables -t nat -I POSTROUTING -s 192.168.42.0/24 -o "$netif" -j MASQUERADE
 
 **注：** 如果使用 Rocky Linux, AlmaLinux 或者 CentOS/RHEL 8 并且在安装 VPN 时 firewalld 正在运行，则可能已配置 nftables。在这种情况下，编辑 `/etc/sysconfig/nftables.conf` 而不是 `/etc/sysconfig/iptables`。
 
-## 部署 Google BBR 拥塞控制算法
+## 部署 Google BBR 拥塞控制
 
 VPN 服务器搭建完成后，可以通过部署 Google BBR 拥塞控制算法提升性能。
 

docs/advanced-usage.md

@@ -10,7 +10,7 @@
 * [Split tunneling](#split-tunneling)
 * [Access VPN server's subnet](#access-vpn-servers-subnet)
 * [Modify IPTables rules](#modify-iptables-rules)
-* [Deploy Google BBR congestion control algorithm](#deploy-google-bbr-congestion-control-algorithm)
+* [Deploy Google BBR congestion control](#deploy-google-bbr-congestion-control)
 
 ## Use alternative DNS servers
 
@@ -280,7 +280,7 @@ If you want to modify the IPTables rules after install, edit `/etc/iptables.rule
 
 **Note:** If using Rocky Linux, AlmaLinux or CentOS/RHEL 8 and firewalld was active during VPN setup, nftables may be configured. In this case, edit `/etc/sysconfig/nftables.conf` instead of `/etc/sysconfig/iptables`.
 
-## Deploy Google BBR congestion control algorithm
+## Deploy Google BBR congestion control
 
 After the VPN server is set up, the performance can be improved by deploying the Google BBR congestion control algorithm.
 

docs/manage-users-zh.md

@@ -4,44 +4,15 @@
 
 在默认情况下，将只创建一个用于 VPN 登录的用户账户。如果你需要查看或管理 IPsec/L2TP 和 IPsec/XAuth ("Cisco IPsec") 模式的用户，请阅读本文档。对于 IKEv2，参见 [管理客户端证书](ikev2-howto-zh.md#管理客户端证书)。
 
-* [查看或更改 IPsec PSK](#查看或更改-ipsec-psk)
-* [查看 VPN 用户](#查看-vpn-用户)
 * [使用辅助脚本管理 VPN 用户](#使用辅助脚本管理-vpn-用户)
+* [查看 VPN 用户](#查看-vpn-用户)
+* [查看或更改 IPsec PSK](#查看或更改-ipsec-psk)
 * [手动管理 VPN 用户](#手动管理-vpn-用户)
 
-## 查看或更改 IPsec PSK
-
-IPsec PSK（预共享密钥）保存在文件 `/etc/ipsec.secrets`。所有的 VPN 用户将共享同一个 IPsec PSK。该文件的格式如下：
-
-```bash
-%any  %any  : PSK "你的IPsec预共享密钥"
-```
-
-如果要更换一个新的 PSK，可以编辑此文件。**不要**在值中使用这些字符：`\ " '`
-
-完成后必须重启服务：
-
-```bash
-service ipsec restart
-service xl2tpd restart
-```
-
-## 查看 VPN 用户
-
-在默认情况下，VPN 安装脚本将为 IPsec/L2TP 和 IPsec/XAuth ("Cisco IPsec") 模式创建相同的用户。
-
-对于 IPsec/L2TP，VPN 用户信息保存在文件 `/etc/ppp/chap-secrets`。该文件的格式如下：
-
-```bash
-"用户名1"  l2tpd  "密码1"  *
-"用户名2"  l2tpd  "密码2"  *
-... ...
-```
-
-对于 IPsec/XAuth ("Cisco IPsec")，VPN 用户信息保存在文件 `/etc/ipsec.d/passwd`。这个文件中的密码以加盐哈希值的形式保存。更多详情请见 [手动管理 VPN 用户](#手动管理-vpn-用户)。
-
 ## 使用辅助脚本管理 VPN 用户
 
+*其他语言版本: [English](manage-users.md#manage-vpn-users-using-helper-scripts), [简体中文](manage-users-zh.md#使用辅助脚本管理-vpn-用户)。*
+
 你可以使用辅助脚本 [添加](../extras/add_vpn_user.sh), [删除](../extras/del_vpn_user.sh) 或者 [更新所有的](../extras/update_vpn_users.sh) VPN 用户。它们将同时更新 IPsec/L2TP 和 IPsec/XAuth ("Cisco IPsec") 模式的用户。对于 IKEv2 模式，请另外参见 [管理客户端证书](ikev2-howto-zh.md#管理客户端证书)。
 
 **注：** 将下面的命令的参数换成你自己的值。VPN 用户信息保存在文件 `/etc/ppp/chap-secrets` 和 `/etc/ipsec.d/passwd`。脚本在修改这些文件之前会先做备份，使用 `.old-日期-时间` 为后缀。
@@ -148,6 +119,37 @@ VPN_PASSWORDS='密码1 密码2 ...' \
 bash updatevpnusers.sh
 ```
 
+## 查看 VPN 用户
+
+在默认情况下，VPN 安装脚本将为 IPsec/L2TP 和 IPsec/XAuth ("Cisco IPsec") 模式创建相同的用户。
+
+对于 IPsec/L2TP，VPN 用户信息保存在文件 `/etc/ppp/chap-secrets`。该文件的格式如下：
+
+```bash
+"用户名1"  l2tpd  "密码1"  *
+"用户名2"  l2tpd  "密码2"  *
+... ...
+```
+
+对于 IPsec/XAuth ("Cisco IPsec")，VPN 用户信息保存在文件 `/etc/ipsec.d/passwd`。这个文件中的密码以加盐哈希值的形式保存。更多详情请见 [手动管理 VPN 用户](#手动管理-vpn-用户)。
+
+## 查看或更改 IPsec PSK
+
+IPsec PSK（预共享密钥）保存在文件 `/etc/ipsec.secrets`。所有的 VPN 用户将共享同一个 IPsec PSK。该文件的格式如下：
+
+```bash
+%any  %any  : PSK "你的IPsec预共享密钥"
+```
+
+如果要更换一个新的 PSK，可以编辑此文件。**不要**在值中使用这些字符：`\ " '`
+
+完成后必须重启服务：
+
+```bash
+service ipsec restart
+service xl2tpd restart
+```
+
 ## 手动管理 VPN 用户
 
 对于 IPsec/L2TP，VPN 用户信息保存在文件 `/etc/ppp/chap-secrets`。该文件的格式如下：

docs/manage-users.md

@@ -4,44 +4,15 @@
 
 By default, a single user account for VPN login is created. If you wish to view or manage users for the IPsec/L2TP and IPsec/XAuth ("Cisco IPsec") modes, read this document. For IKEv2, see [Manage client certificates](ikev2-howto.md#manage-client-certificates).
 
-* [View or update the IPsec PSK](#view-or-update-the-ipsec-psk)
-* [View VPN users](#view-vpn-users)
 * [Manage VPN users using helper scripts](#manage-vpn-users-using-helper-scripts)
+* [View VPN users](#view-vpn-users)
+* [View or update the IPsec PSK](#view-or-update-the-ipsec-psk)
 * [Manually manage VPN users](#manually-manage-vpn-users)
 
-## View or update the IPsec PSK
-
-The IPsec PSK (pre-shared key) is stored in `/etc/ipsec.secrets`. All VPN users will share the same IPsec PSK. The format of this file is:
-
-```bash
-%any  %any  : PSK "your_ipsec_pre_shared_key"
-```
-
-To change to a new PSK, just edit this file. DO NOT use these special characters within values: `\ " '`
-
-You must restart services when finished:
-
-```bash
-service ipsec restart
-service xl2tpd restart
-```
-
-## View VPN users
-
-By default, the VPN setup scripts will create the same VPN user for both IPsec/L2TP and IPsec/XAuth ("Cisco IPsec") modes.
-
-For IPsec/L2TP, VPN users are specified in `/etc/ppp/chap-secrets`. The format of this file is:
-
-```bash
-"username1"  l2tpd  "password1"  *
-"username2"  l2tpd  "password2"  *
-... ...
-```
-
-For IPsec/XAuth ("Cisco IPsec"), VPN users are specified in `/etc/ipsec.d/passwd`. Passwords in this file are salted and hashed. See [Manually manage VPN users](#manually-manage-vpn-users) for more details.
-
 ## Manage VPN users using helper scripts
 
+*Read this in other languages: [English](manage-users.md#manage-vpn-users-using-helper-scripts), [简体中文](manage-users-zh.md#使用辅助脚本管理-vpn-用户).*
+
 You may use helper scripts to [add](../extras/add_vpn_user.sh), [delete](../extras/del_vpn_user.sh) or [update all](../extras/update_vpn_users.sh) VPN users for both IPsec/L2TP and IPsec/XAuth ("Cisco IPsec") modes. For IKEv2 mode, please instead see [Manage client certificates](ikev2-howto.md#manage-client-certificates).
 
 **Note:** Replace command arguments below with your own values. VPN users are stored in `/etc/ppp/chap-secrets` and `/etc/ipsec.d/passwd`. The scripts will backup these files before making changes, with `.old-date-time` suffix.
@@ -148,6 +119,37 @@ VPN_PASSWORDS='password1 password2 ...' \
 bash updatevpnusers.sh
 ```
 
+## View VPN users
+
+By default, the VPN setup scripts will create the same VPN user for both IPsec/L2TP and IPsec/XAuth ("Cisco IPsec") modes.
+
+For IPsec/L2TP, VPN users are specified in `/etc/ppp/chap-secrets`. The format of this file is:
+
+```bash
+"username1"  l2tpd  "password1"  *
+"username2"  l2tpd  "password2"  *
+... ...
+```
+
+For IPsec/XAuth ("Cisco IPsec"), VPN users are specified in `/etc/ipsec.d/passwd`. Passwords in this file are salted and hashed. See [Manually manage VPN users](#manually-manage-vpn-users) for more details.
+
+## View or update the IPsec PSK
+
+The IPsec PSK (pre-shared key) is stored in `/etc/ipsec.secrets`. All VPN users will share the same IPsec PSK. The format of this file is:
+
+```bash
+%any  %any  : PSK "your_ipsec_pre_shared_key"
+```
+
+To change to a new PSK, just edit this file. DO NOT use these special characters within values: `\ " '`
+
+You must restart services when finished:
+
+```bash
+service ipsec restart
+service xl2tpd restart
+```
+
 ## Manually manage VPN users
 
 For IPsec/L2TP, VPN users are specified in `/etc/ppp/chap-secrets`. The format of this file is: