telnet.0

Linux下的socks的程序源程序,用于socks的代理服务

TELNET(1)		   UNIX Reference Manual		  TELNET(1)

NNAAMMEE
     tteellnneett - User interface to the TELNET protocol

SSYYNNOOPPSSIISS
     tteellnneett --8 [] [--EE] [--KK] [--LL] [--XX _a_t_y_p_e] [--aa] [--cc] [--dd]
	   [--ee _e_s_c_a_p_e_c_h_a_r] [--kk _r_e_a_l_m] [--ll _u_s_e_r] [--nn _t_r_a_c_e_f_i_l_e] [--rr] [--xx]
	   [_h_o_s_t [port]]

DDEESSCCRRIIPPTTIIOONN
     The tteellnneett command is used to communicate with another host using the
     TELNET protocol.  If tteellnneett is invoked without the _h_o_s_t argument, it
     enters command mode, indicated by its prompt (tteellnneett>>).  In this mode,
     it accepts and executes the commands listed below.  If it is invoked
     with arguments, it performs an ooppeenn command with those arguments.

     Options:

     --88        Use an eight bit data path.  This will cause an attempt to
	       negotiate the BINARY option on both input and output.

     --EE        The --EE option stops any character from being recognized as
	       an escape character.

     --KK        Do not attempt to do automatic login to the remote system.

     --LL        Use an eight bit data path on output.  This causes the
	       BINARY option to be negotiated on output.

     --XX _a_t_y_p_e
	       Disable the _a_t_y_p_e type of authentication.

     --aa        Attempt automatic login.  Currently, this sends the user
	       name via the USER variable of the ENVIRON option if support-
	       ed by the remote system.  The name used is that of the
	       current user as returned by if it agrees with the current
	       user ID, otherwise it is the name associated with the user
	       ID.

     --cc        The --cc flag disables the reading of the users ._t_e_l_n_e_t_r_c.
	       (See the ttooggggllee sskkiipprrcc command below.)

     --dd        Sets the initial value of the ddeebbuugg toggle to TRUE

     --ee _e_s_c_a_p_e _c_h_a_r
	       Sets the initial tteellnneett escape character to _e_s_c_a_p_e _c_h_a_r.  If
	       _e_s_c_a_p_e _c_h_a_r is ommitted, then there will be no escape char-
	       acter.

     --kk _r_e_a_l_m
	       If Kerberos authentication is being used, the --kk option re-
	       quests that tteellnneett obtain tickets for the remote host in
	       realm _r_e_a_l_m instead of the remote host's realm as determined
	       by krb_realmofhost(3).

     --ll _u_s_e_r   When connecting to the remote system, if the remote system
	       understands the ENVIRON option, then _u_s_e_r will be sent to
	       the remote system as the value for the variable USER.  This
	       option implies the --aa option.  This option may also be used
	       with the ooppeenn command.

     --nn _t_r_a_c_e_f_i_l_e
	       Opens _t_r_a_c_e_f_i_l_e for recording trace information.  See the
	       sseett ttrraacceeffiillee command below.

     --rr        Use a user interface similar to rlogin(1).  In this mode,
	       the escape character is set to the tilde (``~'') character,
	       unless modified by the --ee flag.

     --xx        Turn on encryption of the data stream, if possible.

     _h_o_s_t      Indicates the official name, an alias, or the Internet ad-
	       dress of a remote host.

     _p_o_r_t      Indicates a port number (address of an application) or name.
	       If a number is not specified, the default tteellnneett port is
	       used.  Port names are mapped to port numbers via the
	       /etc/services file.  Normally when a port number is speci-
	       fied, tteellnneett will not send out any initial TELNET option
	       negotiation.  If the port number/name is preceded by a minus
	       sign, then the initial TELNET option negotiation will be
	       sent.

     When in rrllooggiinn mode, a line of the form ``~.'' disconnects from the
     remote host, where ``~'' is the tteellnneett escape character.  Similarly,
     the line ``~^Z'' will suspend the tteellnneett session.	The line ``~^]''
     will escape to the normal tteellnneett escape prompt.

     Once a connection has been opened, tteellnneett will attempt to enable the
     TELNET LINEMODE option.  If this fails, then tteellnneett will revert to one
     of two input modes: either ``character at a time'' or ``old line by
     line'' depending on what the remote system supports.

     When LINEMODE is enabled, character processing is done on the local
     system, under the control of the remote system.  When input editing or
     character echoing is to be disabled, the remote system will relay that
     information.  The remote system will also relay changes to any special
     characters that happen on the remote system, so that they can take ef-
     fect on the local system.

     In ``character at a time'' mode, most text typed is immediately sent
     to the remote host for processing.

     In ``old line by line'' mode, all text is echoed locally, and (normal-
     ly) only completed lines are sent to the remote host.  The ``local
     echo character'' (initially ``^E'') may be used to turn off and on the
     local echo (this would mostly be used to enter passwords without the
     password being echoed).

     If the LINEMODE option is enabled, or if the llooccaallcchhaarrss toggle is TRUE
     (the default for ``old line by line``; see below), the user's qquuiitt,
     iinnttrr, and fflluusshh characters are trapped locally, and sent as TELNET
     protocol sequences to the remote side.  If LINEMODE has ever been en-
     abled, then the user's ssuusspp and eeooff are also sent as TELNET protocol
     sequences, and qquuiitt is sent as a TELNET ABORT instead of BREAK There
     are options (see ttooggggllee aauuttoofflluusshh and ttooggggllee aauuttoossyynncchh below) which
     cause this action to flush subsequent output to the terminal (until
     the remote host acknowledges the TELNET sequence) and flush previous
     terminal input (in the case of qquuiitt and iinnttrr).

     While connected to a remote host, tteellnneett command mode may be entered
     by typing the tteellnneett ``escape character'' (initially ``^ When in com-
     mand mode, the normal terminal editing conventions are available.

     The following tteellnneett commands are available.  Only enough of each com-
     mand to uniquely identify it need be typed (this is also true for most
     of the arguments to the commands).

     aauutthh _a_r_g_u_m_e_n_t_s...
	       The aauutthh command is used to manipulate the the information
	       that my be sent through the TELNET AUTHENTICATE option.
	       Valid arguments for the aauutthh command are:
	       ddiissaabbllee _t_y_p_e
			 Disable the specified _t_y_p_e of authentication.	A
			 list of available types can be gotten by doing an
			 aauutthh ddiissaabbllee ??  command.

	       eennaabbllee _t_y_p_e
			 Enable the specified _t_y_p_e of authentication.  A
			 list of available types can be gotten by doing an
			 aauutthh eennaabbllee ??	command.

	       ssttaattuuss	 List the current status of the various types of
			 authentication.

     cclloossee     Close a TELNET session and return to command mode.

     ddiissppllaayy _a_r_g_u_m_e_n_t ...
	       Displays all, or some, of the sseett and ttooggggllee values (see
	       below).

     eennccrryypptt _a_r_g_u_m_e_n_t_s...
	       The eennccrryypptt command is used to manipulate the the informa-
	       tion that my be sent through the TELNET ENCRYPT option.
	       Valid arguments for the eennccrryypptt command are:

	       ddiissaabbllee _t_y_p_e[input|output]
			 Disable the specified _t_y_p_e of encryption.  If the
			 [input] or [output] is not specified, both input
			 and output will be disabled.  A list of available
			 types can be gotten by doing an eennccrryypptt ddiissaabbllee ??
			 command.

	       eennaabbllee _t_y_p_e[input|output]
			 Enable the specified _t_y_p_e of encryption.  If
			 [input] or [output] is not specified, both input
			 and output will be enabled.  A list of available
			 types can be gotten by doing an eennccrryypptt eennaabbllee ??
			 command.

	       ttyyppee _t_y_p_e
			 Set the default type of encryption to be used with
			 later eennccrryypptt ssttaarrtt or eennccrryypptt ssttoopp commands.

	       ssttaarrtt[input|output]
			 Attempt to start encryption.  If [input] or
			 [output] is not specified, encryption of both in-
			 put and output will be attempted.  The eennccrryypptt
			 ttyyppee command must have been used to set the en-
			 cryption type.

	       ssttoopp[input|output]
			 Stop encryption.  If [input] or [output] is not
			 specified, encryption will be stopped on both in-
			 put and output.

	       iinnppuutt	 This is the same as the eennccrryypptt ssttaarrtt iinnppuutt com-
			 mand.

	       --iinnppuutt	 This is the same as the eennccrryypptt ssttoopp iinnppuutt com-
			 mand.

	       oouuttppuutt	 This is the same as the eennccrryypptt ssttaarrtt oouuttppuutt com-
			 mand.

	       --oouuttppuutt	 This is the same as the eennccrryypptt ssttoopp oouuttppuutt com-
			 mand.

	       ssttaattuuss	 List the current status of encryption.

     eennvviirroonn _a_r_g_u_m_e_n_t_s...
	       The eennvviirroonn command is used to manipulate the the variables
	       that my be sent through the TELNET ENVIRON option.  The ini-
	       tial set of variables is taken from the users environment,
	       with only the DISPLAY and PRINTER variables being exported
	       by default.  The USER variable is also exported if the --aa or
	       --ll options are used.
	       Valid arguments for the eennvviirroonn command are:

	       ddeeffiinnee _v_a_r_i_a_b_l_e _v_a_l_u_e
			 Define the variable _v_a_r_i_a_b_l_e to have a value of
			 _v_a_l_u_e.  Any variables defined by this command are
			 automatically exported.  The _v_a_l_u_e may be enclosed
			 in single or double quotes so that tabs and spaces
			 may be included.

	       uunnddeeffiinnee _v_a_r_i_a_b_l_e
			 Remove _v_a_r_i_a_b_l_e from the list of environment vari-
			 ables.

	       eexxppoorrtt _v_a_r_i_a_b_l_e
			 Mark the variable _v_a_r_i_a_b_l_e to be exported to the
			 remote side.

	       uunneexxppoorrtt _v_a_r_i_a_b_l_e
			 Mark the variable _v_a_r_i_a_b_l_e to not be exported un-
			 less explicitly asked for by the remote side.

	       lliisstt	 List the current set of environment variables.
			 Those marked with a ** will be sent automatically,
			 other variables will only be sent if explicitly
			 requested.

	       ??	 Prints out help information for the eennvviirroonn com-
			 mand.

     llooggoouutt    Send the TELNET LOGOUT option to the remote side.  This is
	       similar to doing a cclloossee command, however if the remote side