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ENDLESSH(1)		FreeBSD	General	Commands Manual		   ENDLESSH(1)

NAME
     endless --	An SSH tarpit

SYNOPSIS
     endless [-46chsvV]	[-d delay] [-f config] [-l max banner length]
	     [-m max clients] [-p port]

DESCRIPTION
     endless is	an SSH tarpit that very	slowly sends an	endless, random	SSH
     banner.

     endless keeps SSH clients locked up for hours or even days	at a time.
     The purpose is to put your	real SSH server	on another port	and then let
     the script	kiddies	get stuck in this tarpit instead of bothering a	real
     server.

     Since the tarpit is in the	banner before any cryptographic	exchange oc-
     curs, this	program	doesn't	depend on any cryptographic libraries. It's a
     simple, single-threaded, standalone C program.  It	uses poll() to trap
     multiple clients at a time.

     The options are as	follows:

     -4	     Forces endless to use IPv4	addresses only.

     -6	     Forces endless to use IPv6	addresses only.

     -d	delay
	     Message milliseconds delay. Default: 10000

     -f	config
	     Set and load config file.	By default endless looks for /usr/lo-
	     cal/etc/endlessh.conf.

     -h	     Print the help message and	exit.

     -l	max banner length
	     Maximum banner line length	(3-255). Default: 32

     -m	max clients
	     Maximum number of clients.	Default: 4096

     -p	port
	     Set the listening port. By	default	endless	listens	on port	2222.

     -s	     Print diagnostics to syslog. By default endless prints them to
	     standard output.

     -v	     Print diagnostics.	Can be specified up to twice to	increase ver-
	     bosity.

     -V	     Causes endless to print version information and exit.

     If	endless	receives the SIGTERM signal it will gracefully shut down the
     daemon, allowing it to write a complete, consistent log.

     A SIGHUP signal requests a	reload of its configuration file.

     A SIGUSR1 signal will print connections stats to the log.

FILES
     /usr/local/etc/endlessh.conf  The default endless configuration file.

FreeBSD	13.0		       January 29, 2020			  FreeBSD 13.0

NAME | SYNOPSIS | DESCRIPTION | FILES

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