这是我第一次尝试超越 Ubuntu，并选择 Antergos 来轻松进入更广阔的 Linux 世界。一切都很顺利，pacman 也越来越熟悉，但 autossh 似乎遇到了问题：
关于安特戈斯：
[tbrowne@redbrix1 ~]$ autossh -p 52222 [email protected]
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.
Environment variables are:
AUTOSSH_GATETIME - how long must an ssh session be established
before we decide it really was established
(in seconds). Default is 30 seconds; use of -f
flag sets this to 0.
AUTOSSH_LOGFILE - file to log to (default is to use the syslog
facility)
AUTOSSH_LOGLEVEL - level of log verbosity
AUTOSSH_MAXLIFETIME - set the maximum time to live (seconds)
AUTOSSH_MAXSTART - max times to restart (default is no limit)
AUTOSSH_MESSAGE - message to append to echo string (max 64 bytes)
AUTOSSH_PATH - path to ssh if not default
AUTOSSH_PIDFILE - write pid to this file
AUTOSSH_POLL - how often to check the connection (seconds)
AUTOSSH_FIRST_POLL - time before first connection check (seconds)
AUTOSSH_PORT - port to use for monitor connection
AUTOSSH_DEBUG - turn logging to maximum verbosity and log to
stderr
[tbrowne@redbrix1 ~]$
在 Ubuntu 16.04 上：
tbrowne@calculon:~$ autossh -p 52222 [email protected]
____ _ _ _ _
/ ___| _| |__ (_) ___| |_ _ __ _ _ ___| | __
| | | | | | '_ \| |/ _ \ __| '__| | | |/ __| |/ /
| |__| |_| | |_) | | __/ |_| | | |_| | (__| <
\____\__,_|_.__/|_|\___|\__|_| \__,_|\___|_|\_\
Welcome to ARMBIAN 5.31 stable Debian GNU/Linux 8 (jessie) 4.11.6-sunxi
System load: 0.05 0.05 0.01 Up time: 1 day
Memory usage: 17 % of 2012MB IP: 192.168.1.192
CPU temp: 37°C HDD temp: 30°C
Usage of /: 7% of 110G storage/: 7% of 110G
[ 0 security updates available, 2 updates total: apt upgrade ]
Last check: 2017-08-30 00:00
[ General system configuration: armbian-config ]
Last login: Wed Aug 30 15:21:31 2017 from 83-244-211-54.cust-83.exponential-e.net
____
___======____=---=)
/T \_--===)
[ \ (0) \~ \_-==)
\ / )J~~ \-=)
\\___/ )JJ~~~ \)
\_____/JJJ~~~~ \
/ \ , \J~~~~~ \
(-\)\=|\\\~~~~ L__
(\\) (\\\)_ \==__
\V \\\) ===_____ \\\\\\
\V) \_) \\\\JJ\J\)
/J\JT\JJJJ)
(JJJ| \UUU)
(UU)
Welcome to fish, the friendly interactive shell
Type help for instructions on how to use fish
tbrowne@cubietruck ~>
我想使用 autossh 创建反向端口转发，但每当我尝试使用它时，它似乎都会给我一个语法错误。
我在两者上都使用 autossh 1.4e。普通的旧（非自动）ssh 在两者上都可以正常工作。这是怎么回事？