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224 lines
4.2 KiB
Markdown
224 lines
4.2 KiB
Markdown
# TNT Quick Setup
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This guide gets a TNT server running and explains the first user session.
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For the full reference, see [README.md](../README.md), [tnt(1)](../tnt.1),
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and [Deployment](DEPLOYMENT.md).
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## Install
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```sh
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curl -sSL https://raw.githubusercontent.com/m1ngsama/TNT/main/install.sh | sh
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```
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Or build from source:
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```sh
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git clone https://github.com/m1ngsama/TNT.git
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cd TNT
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make
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sudo make install
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```
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## Start A Server
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```sh
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tnt
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```
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By default TNT listens on port `2222`, stores `host_key` and `messages.log`
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in the current directory, and allows anonymous SSH login.
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Use explicit state and port settings for a long-running server:
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```sh
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tnt -p 2222 -d /var/lib/tnt
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```
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## Connect
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```sh
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ssh -p 2222 chat.example.com
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```
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Default access rules:
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- Any SSH username is accepted.
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- Empty or arbitrary passwords are accepted.
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- SSH keys are not required.
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- TNT asks for a display name after the SSH session starts.
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Set `TNT_ACCESS_TOKEN` when you want a shared password:
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```sh
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TNT_ACCESS_TOKEN="change-this-password" tnt -p 2222 -d /var/lib/tnt
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```
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## First Session
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TNT opens in INSERT mode. Type a message and press `Enter`.
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Common keys:
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```text
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Esc enter NORMAL mode
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i return to INSERT mode
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: enter COMMAND mode
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? open the full key reference
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G or End jump to latest messages
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Ctrl+C disconnect from NORMAL mode
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```
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Common commands:
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```text
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:help concise manual
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:users online users
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:nick <name> change nickname
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:msg <user> <message> send private message
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:inbox show private messages
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:last [N] recent messages
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:search <keyword> search message history
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:lang en|zh switch UI language
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:q disconnect
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```
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NORMAL mode opens at the latest messages and follows new messages until the
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user scrolls up. Use `G` or `End` to return to the live tail.
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## Configure
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```sh
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# Listening address and port
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TNT_BIND_ADDR=0.0.0.0 PORT=2222 tnt
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# State directory
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TNT_STATE_DIR=/var/lib/tnt tnt
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# Shared SSH password
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TNT_ACCESS_TOKEN="change-this-password" tnt
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# Default UI language; unset means locale detection, then English fallback
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TNT_LANG=en tnt
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TNT_LANG=zh tnt
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# Connection limits
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TNT_MAX_CONNECTIONS=200 tnt
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TNT_MAX_CONN_PER_IP=30 tnt
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TNT_MAX_CONN_RATE_PER_IP=60 tnt
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# Idle timeout in seconds; 0 disables it
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TNT_IDLE_TIMEOUT=3600 tnt
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```
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## Run Under systemd
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```sh
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sudo useradd -r -s /bin/false tnt
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sudo mkdir -p /var/lib/tnt
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sudo chown tnt:tnt /var/lib/tnt
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sudo cp tnt.service /etc/systemd/system/
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sudo systemctl daemon-reload
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sudo systemctl enable --now tnt
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sudo systemctl status tnt
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```
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Put runtime overrides in `/etc/default/tnt`:
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```sh
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PORT=2222
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TNT_BIND_ADDR=0.0.0.0
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TNT_STATE_DIR=/var/lib/tnt
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TNT_MAX_CONNECTIONS=200
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TNT_MAX_CONN_PER_IP=30
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TNT_MAX_CONN_RATE_PER_IP=60
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TNT_RATE_LIMIT=1
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TNT_SSH_LOG_LEVEL=1
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TNT_PUBLIC_HOST=chat.example.com
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```
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Open the listening port in your firewall:
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```sh
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sudo ufw allow 2222/tcp
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```
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## Troubleshooting
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### Port Already In Use
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```sh
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tnt -p 3333
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```
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### Cannot Connect
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Check the server process:
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```sh
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systemctl status tnt
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sudo journalctl -u tnt -n 50 --no-pager
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```
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Check the listening port:
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```sh
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ss -ltnp | grep 2222
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```
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Check the firewall:
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```sh
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sudo ufw status
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```
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### Connection Closes Immediately
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The most common causes are per-IP connection limits, connection-rate limits,
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an auth-failure ban, a full room, or a closed firewall port. The server logs
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the rejection reason to stderr or the systemd journal.
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## Chinese Quick Notes
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### 安装
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```sh
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curl -sSL https://raw.githubusercontent.com/m1ngsama/TNT/main/install.sh | sh
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```
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### 启动
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```sh
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tnt
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```
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默认监听 `2222` 端口，并允许匿名 SSH 登录。
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### 连接
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```sh
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ssh -p 2222 chat.example.com
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```
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默认情况下，任意 SSH 用户名和空密码都可以连接。进入后 TNT 会询问显示名称。
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### 常用操作
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```text
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Enter 发送消息
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Esc 进入 NORMAL 模式
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i 回到 INSERT 模式
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: 输入命令
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? 查看完整按键参考
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G 或 End 回到最新消息
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:help 查看简明手册
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:lang en|zh 切换界面语言
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:q 断开连接
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```
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### 常用配置
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```sh
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TNT_ACCESS_TOKEN="change-this-password" tnt
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TNT_STATE_DIR=/var/lib/tnt tnt
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TNT_LANG=zh tnt
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```
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