There are literally hundreds of systems connected to some of these larger
networks, like Tymnet and Telenet. Navigation around these networks is very
simple, and usually well explained in their on-line documentation.
Furthermore, some systems will actually tell you what is connected and how to
get to it. In the case of Tymnet, after dialing in, at the log in prompt, type
"information" for the on-line documentation.
Accessing systems through networks is as simple as providing an address for it
to connect to. The best way to learn about the addresses and how to do things
on a network is to read "A Novice's Guide to Hacking (1989 Edition)" which was
in Issue 22, File 4 of 12, Volume Two (December 23, 1988). Some points are
re-iterated here.
Once on a network, you provide the NUA (network user address) of the system you
wish to connect to. NUAs are strings of 15 digits, broken up in to 3 fields,
the NETWORK ADDRESS, the AREA PREFIX, and the DNIC. Each field has 5 digits,
and are left padded with 0's where necessary.
The DNIC determines which network to take the address from. Tymnet, for
example, is 03106. 03110 is Telenet.
The AREA PREFIX and NETWORK ADDRESS determine the connection point. By
providing the address of the system that you wish to connect to, you will be
accessing it through the net... as if you were calling it directly. Obviously,
then, this provides one more level of security for access.
By connecting to an outdial, you can increase again the level of security you
enjoy, by using the outdial in that area to connect to the remote system.
Addendum -- Accessing Tymnet Over Local Packet Networks
This is just another way to get that extra step and/or bypass other routes.
This table is copied from Tymnet's on-line information. As said earlier, it's
a great resource, this on-line information!
06254 WASHINGTON DIST. OF COL. 300/1200 202/479-7214 @PDN
06254 WASHINGTON (MIDTOWN) DIST. OF COL. 2400 202/785-1688 @PDN
06254 WASHINGTON (DOWNTOWN) DIST. OF COL. 300/1200 202/393-6003 @PDN
06254 WASHINGTON (MIDTOWN) DIST. OF COL. 300/1200 202/293-4641 @PDN
06254 WASHINGTON DIST. OF COL. 300/1200 202/546-5549 @PDN
06254 WASHINGTON DIST. OF COL. 300/1200 202/328-0619 @PDN
07771 BERNARDSVILLE NEW JERSEY 300/2400 201/766-7138 @PDN
07771 CLINTON NEW JERSEY 300-1200 201/730-8693 @PDN
07771 DOVER NEW JERSEY 300/2400 201/361-9211 @PDN
07771 EATONTOWN/RED BANK NEW JERSEY 300/2400 201/758-8000 @PDN
07771 ELIZABETH NEW JERSEY 300/2400 201/289-5100 @PDN
07771 ENGLEWOOD NEW JERSEY 300/2400 201/871-3000 @PDN
07771 FREEHOLD NEW JERSEY 300/2400 201/780-8890 @PDN
07771 HACKENSACK NEW JERSEY 300/2400 201/343-9200 @PDN
07771 JERSEY CITY NEW JERSEY 300/2400 201/659-3800 @PDN
07771 LIVINGSTON NEW JERSEY 300/2400 201/533-0561 @PDN
07771 LONG BRANCH/RED BANK NEW JERSEY 300/2400 201/758-8000 @PDN
07771 MADISON NEW JERSEY 300/2400 201/593-0004 @PDN
07771 METUCHEN NEW JERSEY 300/2400 201/906-9500 @PDN
07771 MIDDLETOWN NEW JERSEY 300/2400 201/957-9000 @PDN
07771 MORRISTOWN NEW JERSEY 300/2400 201/455-0437 @PDN
07771 NEWARK NEW JERSEY 300/2400 201/623-0083 @PDN
07771 NEW BRUNSWICK NEW JERSEY 300/2400 201/247-2700 @PDN
07771 NEW FOUNDLAND NEW JERSEY 300/2400 201/697-9380 @PDN
07771 PASSAIC NEW JERSEY 300/2400 201/473-6200 @PDN
07771 PATERSON NEW JERSEY 300/2400 201/345-7700 @PDN
07771 PHILLIPSBURG NEW JERSEY 300/2400 201/454-9270 @PDN
07771 POMPTON LAKES NEW JERSEY 300/2400 201/835-8400 @PDN
07771 RED BANK NEW JERSEY 300/2400 201/758-8000 @PDN
07771 RIDGEWOOD NEW JERSEY 300/2400 201/445-4800 @PDN
07771 SOMERVILLE NEW JERSEY 300/2400 201/218-1200 @PDN
07771 SOUTH RIVER NEW JERSEY 300/2400 201/390-9100 @PDN
07771 SPRING LAKE NEW JERSEY 300/2400 201/974-0850 @PDN
07771 TOMS RIVER NEW JERSEY 300/2400 201/286-3800 @PDN
07771 WASHINGTON NEW JERSEY 300/2400 201/689-6894 @PDN
07771 WAYNE/PATERSON NEW JERSEY 300/2400 201/345-7700 @PDN
131069 (ADDRESS CONFIRMATION - TYMNET DNIC)
COM (CONFIRMATION OF CALL SET-UP)
-GWY 0XXXX- TYMNET: PLEASE LOG IN: (HOST # WITHIN DASHES)
BELL SOUTH
NODE CITY STATE DENSITY ACCESS NUMBER MODEM
----- -------------------- -------------- ------ ------------ -----
10207 ATLANTA GEORGIA 300/1200 404/261-4633 @PLSK
10207 ATHENS GEORGIA 300/1200 404/354-0614 @PLSK
10207 COLUMBUS GEORGIA 300/1200 404/324-5771 @PLSK
10207 ROME GEORGIA 300/1200 404/234/7542 @PLSK
@PLSK BELLSOUTH - NETWORK NAME IS PULSELINK
(CONNECT MESSAGE)
. _. _. _ _< _C _R _> _ (SYNCHRONIZES DATA SPEEDS)
(DOES NOT ECHO TO THE TERMINAL)
CONNECTED
PULSELINK
1 _3 _1 _0 _6 _ (TYMNET ADDRESS)
(DOES NOT ECHO TO THE TERMINAL)
PULSELINK: CALL CONNECTED TO 1 3106
-GWY 0XXXX- TYMNET: PLEASE LOG IN: (HOST # WITHIN DASHES)
PACIFIC BELL
NODE CITY STATE DENSITY ACCESS NUMBER NTWK
----- ------------------- -------------- ------ ------------ ----
03306 BERKELEY CALIFORNIA 300/1200 415-548-2121 @PPS
06272 EL SEGUNDO CALIFORNIA 300/1200 213-640-8548 @PPS
06272 FULLERTON CALIFORNIA 300/1200 714-441-2777 @PPS
06272 INGLEWOOD CALIFORNIA 300/1200 213-216-7667 @PPS
06272 LOS ANGELES(DOWNTOWN) CALIFORNIA 300/1200 213-687-3727 @PPS
06272 LOS ANGELES CALIFORNIA 300/1200 213-480-1677 @PPS
03306 MOUNTAIN VIEW CALIFORNIA 300/1200 415-960-3363 @PPS
03306 OAKLAND CALIFORNIA 300/1200 415-893-9889 @PPS
03306 PALO ALTO CALIFORNIA 300/1200 415-325-4666 @PPS
06272 PASADENA CALIFORNIA 300/1200 818-356-0780 @PPS
03306 SAN FRANCISCO CALIFORNIA 300/1200 415-543-8275 @PPS
03306 SAN FRANCISCO CALIFORNIA 300/1200 415-626-5380 @PPS
03306 SAN FRANCISCO CALIFORNIA 300/1200 415-362-2280 @PPS
03306 SAN JOSE CALIFORNIA 300/1200 408-920-0888 @PPS
06272 SANTA ANNA CALIFORNIA 300/1200 714-972-9844 @PPS
06272 VAN NUYS CALIFORNIA 300/1200 818-780-1066 @PPS
@PPS PACIFIC BELL - NETWORK NAME IS PUBLIC PACKET SWITCHING (PPS)
(CONNECT MESSAGE)
. _. _. _< _C _R _ (SYNCHRONIZES DATA SPEEDS)>
(DOES NOT ECHO TO THE TERMINAL)
ONLINE 1200
WELCOME TO PPS: 415-XXX-XXXX
1 _3 _1 _0 _6 _9 _ (TYMNET ADDRESS)
(DOES NOT ECHO UNTIL TYMNET RESPONDS)
-GWY 0XXXX- TYMNET: PLEASE LOG IN: (HOST # WITHIN DASHES)
@CONNNET - SOUTHERN NEW ENGLAND TELEPHONE - NETWORK NAME IN CONNNET
(CONNECT MESSAGE)
H_ H_ <_ C_ R_> (SYNCHRONIZES DATA SPEEDS)
(DOES NOT ECHO TO THE TERMINAL)
CONNNET
._ T_ <_ C_ R_>_ (MUST BE CAPITAL LETTERS)
26-SEP-88 18:33 (DATA)
031069 (ADDRESS CONFIRMATION)
COM (CONFIRMATION OF CALL SET-UP)
-GWY OXXXX-TYMNET: PLEASE LOG IN:
On a side note, the recent book The Cuckoo's Egg provides some interesting
information (in the form of a story, however) on a Tymnet hacker. Remember
that he was into BIG things, and hence he was cracked down upon. If you keep a
low profile, networks should provide a good access method.
If you can find a system that is connected to the Internet that you can get on
from Tymnet, you are doing well.
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