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> ssh user@localhost

> ssh: connect to host localhost port 22: Connection refused

> ftp user@localhost

> ftp: connect: Connection refused

> ssh joker@localhost

> joker:localhost's password:

> joker

> joker@localhost: "ls -l"

> Unable to access: ''. No such file or directory

> joker@localhost: "ls"

> bin boot dev etc home lib lost+found opt proc root run sbin srv sys tmp usr var

> joker@localhost: "exit"

............