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Dante（SOCKS 服务器）user.unprivileged 和 user.unprivileged 选项导致启动时失败

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Dante（SOCKS 服务器）user.unprivileged 和 user.unprivileged 选项导致启动时失败

我正在尝试在我的 Ubuntu 18.04 服务器上设置 Dante 1.4.2，但是 Dante 出现了奇怪的行为：

Jun 12 01:33:22 (1528760002.119429) danted[8854]: error: /etc/danted.conf: problem on line 93 near token "user.privileged": syntax error.  Please see the Dante manual for more information
Jun 12 01:33:22 (1528760002.121016) danted[8854]: alert: mother[1/1]: shutting down

我的 /etc/danted.conf 如下所示（除了注释和空行）：

# cat /etc/danted.conf | grep -v '^#' | grep -v '^$'
logoutput: syslog stdout /var/log/sockd.log
internal: eth0 port = 1080
external: <server's real IP>
socksmethod: pam.username
client pass {
    from: 0.0.0.0/0 to: 0.0.0.0/0
    log: connect disconnect error
    pam.servicename: sockd
}
socks pass {
    from: 0.0.0.0/0 to: 0.0.0.0/0
    log: connect disconnect error
}
user.privileged: proxy
user.unprivileged: nobody

此记录声明user.*是库存文件中未注释的行。根据 Dante 配置格式，这些关键字是正确的（请参阅https://www.inet.no/dante/doc/1.4.x/sockd.conf.5.html）。

如果我注释掉user.*几行，Dante 就会启动但会提醒我这不是安全的配置：

Jun 12 01:43:45 (1528760625.302753) danted[9445]: warning: checkconfig(): setting the unprivileged uid to 0 is not recommended for security reasons

请告知是否user.privileged有user.unprivileged必要，如果有必要，如何使用这些设置启动 Dante。

谢谢！

答案1

解决方案是按照以下方式更改配置中的行顺序：

# cat danted.conf | grep -v '^#' | grep -v ^$
logoutput: syslog stdout /var/log/sockd.log
internal: eth0 port = 1080
external: <server's real IP>
socksmethod: pam.username
user.privileged: root
user.unprivileged : nobody
client pass {
    from: 0.0.0.0/0 to: 0.0.0.0/0
    log: connect disconnect error
    pam.servicename: sockd
}
socks pass {
    from: 0.0.0.0/0 to: 0.0.0.0/0
    log: connect disconnect error
}

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