The Nice Try shell, meant for honeypots

Installation is easy:

go get github.com/kd5pbo/ntsh
mkdir /tmp/ntsh (if using defaults)

The defaults are expected to be safe for most situations, but a -h gives the command-line options:

-a=false: Prompt for authorization
-c="": Client's address
-l="/tmp/ntsh/ntsh.log": Logfile
-motd="/tmp/ntsh/motd": MOTD to print on connect
-p="[root@localhost:~]# ": Prompt, may be changed later
-pw="": If set, only allow in this password; implies -a
-u="": If set, only allow in this username; implies -a

A telnet server using ncat:

nohup ncat -ltkp 23 -e $GOPATH/bin/ntsh

It should also be usable as a shell in /etc/passwd:

honey:*:1002:1002::/home/honey:/path/to/ntsh

You'll probably have to put it somewhere other than $GOPATH/bin, though.

Each command will need it's own source file in the top-level directory, probably with the same name as the command. It should have an init() function which calls Register() (from command.go). It's perfectly fine to put source files for a command in a subdirectory, like with id.

Have a look at id.go, the id/ directory, and rm.go for examples. Generally speaking, commands should try to print out "Nice Try" in some fashion.