小编Dav*_*son的帖子

我正在使用最新更新在 fedora core 15 上运行 yum 安装的 autossh 1.4a。

这有效：

ssh -L 9000:valid.fqdn:80 another_valid_fqdn

但是，autossh 失败并打印其使用消息：

ssh -L 9000:valid.fqdn:80 another_valid_fqdn

usage: autossh [-V] [-M monitor_port[:echo_port]] [-f] [SSH_OPTIONS]

    -M specifies monitor port. May be overridden by environment
       variable AUTOSSH_PORT. 0 turns monitoring loop off.
       Alternatively, a port for an echo service on the remote
       machine may be specified. (Normally port 7.)
    -f run in background (autossh handles this, and does not
       pass it to ssh.)
    -V print autossh version and exit. …