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I remember the day I told one of my friends that I had hacked
some Unix accounts. "Five accounts!", I said. "I hacked five
unix accounts!"
"Well", my friend said, "I guess that's cool. What can you
do with a unix account?"
I thought for a minute. "Hmm... I dunno."
Well, that was a long time ago, and since then, I've been
learning what you can do with a unix account. The cool thing
about having an account on a unix is not the processing power of
the unix. Those things seem pretty slow, especially once you
have several users on the thing. The software on them generally
sucks, except for a couple cool things you can do. I mean the
unix OS is nice, and it's fun being able to run jobs in the
background, but it's really nothing to get excited about.
(Though I'm sure some Unix fanatics would disagree with me.)
Unless your system has access to internet. Then you've
stepped into a whole new world.
What can you do with internet? Well, here's the main things:
+ Send mail to anyone else on internet (includes Compuserve).
+ Call any other system on internet.
+ Chat with anyone on any system on internet.
+ Call many systems (several hundred) and download files.
+ Play multi-player games with other people.
+ Access outdials to call LD boards for free
Sounds pretty cool, huh? Damn straight. Before I talk about
how to do all of these things, I'll talk about what internet is
and how you can be a part of it.
There's an incredible number of unix systems worldwide, and
most of them are pretty powerful mainframes or minicomputers that
are connected to each other with high speed transfer lines and
dialups. All these systems combined, plus some outdials, vaxes,
and other assorted technogoodies make up internet. If you have
an account on one of these systems, then you have access to
internet and actually are a part of internet.
Everything on internet has an address. It can be stated in
two ways, mnemonics or numbers. Mnemonics looks something like
this: pogo.ai.mit.edu. This is the addess of one of the MIT
unixes. Numbers look like this: 192.55.239.132. See the
similarities?
Everybody on internet has an address. If I'm logged in on
that MIT unix I spoke of earlier, suppose under the account
"joe", my address would be joe@pogo.ai.mit.edu. If someone
wanted to leave me mail, they'd send it to that address.
So to be a part of internet and access it, you need to be
logged into a system on intrnet, usually a unix. How do you get
a unix account? Well, that's your problem. Most colleges and
universities have several unix systems. Many have guest
accounts, but if you can't find one of those, you'll probably
have to hack one. But that's no big deal, unix accounts are the
easiest things in the world to hack, especially if you already
have access to one account on the system. If possible though,
get your own. That way you can have your own little mailbox, and
there's less confusion. Sharing an account can be a pain.
So how do you do all those nifty things I spoke of above?
Well, in this article I'll give unix examples, because that's the
systems I work with most, and the ones you'll probably be working
on.
SENDING MAIL TO SOMEONE ELSE
This is easy, just type "mail <person's address>". Type your
message, and the last line is a line with just '.' and a cr. The
mail will be transferred from system to system until it gets to
where it's going. If it goes around for a while, and then
realizes that the address is false (i.e. no such thing as
frank.ai.ber.edu), it'll be returned to you, maybe within a few
minutes if you're mailing somebody on your system, maybe within a
day if it has to go all over the country. Mail is usually sent
within 24 hours, depending how far it has to go.
SEEING WHO IS LOGGED IN AT A SPECIFIC SYSTEM
Type "finger @<system address>", so "who @pogo.ai.mit.edu" would
see who is logged in on that system. This is useful to see if a
system is free, so you can hack it at will, or a system
administrator is there. Also good for seeing if one of your
friends is there, so you can chat with them.
GETTING INFORMATION ON A USER ON A SPECIFIC SYSTEM
The command is "finger <username>@<system address>", so
"finger joe@pogo.ai.mit.edu" would give you some info on joe,
such as when he last logged on, wether he is currently on the
system, his name, and some other stuff.
TALKING TO SOMEONE ELSE IN REAL-TIME
Two ways to do this. One is a two-way chat mode like you get
on boards. To do this, type "talk <username>@<system address>".
It'll page the person on the other end, and then they can type
"talk" and then your address. Then you have a two way chat mode.
If you just want to have a message appear on his console,
type "write <username>@<system address>". Then type the message
you want displayed, and then type ctrl-D. (At least that's what
it is on my system.) The guy on the other end will see "Message
from <so&so>", it'll beep, and then show your message.
CONNECTING TO REMOTE SYSTEMS
Use the Unix command "telnet". "telnet <system address>" will
connect you to a foreign system. Just typing "telnet" by itself
will get you to the telnet command mode. You'll see the
"telnet>" prompt. Then you can type "open <system address>", or
just abbreviate that to "o <system address>".
Anyway, when you call, you'll see "Trying...". If the system
exists, this shouldn't take more than a few seconds, unless
you're connecting to something in Europe or Australia. In any
event, at this point you can abort the attempt by typing ctrl-c,
or whatever the break key is on your system. When you see
"Connected", you know you've succeded, and it'll tell you the
terminal escape character, ctrl-[ on my system. Also, it may say
"Connection refused by foreign host." or something to that
effect. When you call a system, the system probably won't get
your username (though don't count on this), but will be informed
of where the call is coming from. Some systems only accept calls
from certain systems. Also, the system could be down for some
reason.
Once you've connected, you're communicating with the system
normally, albeit a little slower due to all the packet switching.
At any time you can type ctrl-[ (though your terminal escape
character may be something else), and see the "telnet>" prompt.
You can just hit enter, and resume your dialog. Or you can type
"close" or "c" to close the connection, or "q" to quit. You can
also do a shell escape, by typing "z". The telnet process will
be suspended, and you are back in a shell. When you wish to
resume, you can continue the telnet process by typing "%1".
Telnet is a hacker's best friend, because from a unix, you can
call another unix, and from there another, and completely obscure
your trail. It is almost impossible to even tell what part of
the country you are calling from, let alone trace you to your
home.
GETTING FILES FROM A REMOTE SYSTEM
There are many ways to do this, but I typically use FTP.
"ftp" is a Unix command that allows you to connect to remote
systems and leech their files. FTP is very similar to telnet in
command syntax, in that you can type "ftp <system address>", or
type "ftp" and enter an interactive ftp mode.
When you connect to a system, assuming successful connection,
you'll be greeted with:
Login: (name etc etc)
You DO NOT want to hit return, or the system will send your
username, and it won't work. Type "anonymous", as the majority
of systems support that. Next it'll ask you for password. Just
hit return, or type "anon". Hopefully, you'll be connected.
btw usually your username and system location are sent
anyway. If you're going to be ftping something sensitive, you
probably want to be on a guest account. That way the system will
only know that it's sending files to "guest@<whatever>", and
nothing can be traced back to you.
Once you're on, you'll be sitting at the ftp prompt of
"ftp>". There are a variety of commands you can use, mostly for
finding your way through the remote systems directory tree and
sending or recieving files. Here is a list of some of the more
useful:
quit :disconnect and quit ftp.
ls :show files in current directory. Shows names only.
ls -l :show files in current directory. Shows names, filesize, &
permissions.
cd <directory> :Change current directory. Syntax is exactly like
the cd command in unix, i.e. "cd .." will move you back one
directory, "cd /" will move you to the root directory, "cd
/usr/lib" will move you to the directory /usr/lib, and so forth.
recv <filename> :File is sent from the remote system to your
system. Wildcards are not allowed. The file will be copied into
your current directory.
mget <filename> :Like "recv" above, but wildcards are allowed.
However, confirmation is requested for each file.
? :list commands availabe in ftp.
Transfer times are extremely fast, as least to someone like
me with a 2400 baud modem. A 100k file might take eight seconds.
Times do vary though.
btw you probably don't need me to tell you this, but feel
free to ftp the /etc/passwd file from a remote system, and use a
password hacker to bust in the accounts. It's one of the best
uses of ftp.
PLAYING ONLINE GAMES ON A UNIX
This varies greatly from machine to machine. I've seen some
good multi-player games out there, and heard of many more.
Hopefully you can find a system with one. If not, my only
suggestion is to get the source somewhere, and try to compile it
on your machine (a tedious task).
PLACES TO CALL
So now that you know how to use all these tools, you need
someplace to ftp to or telnet from. Well, here are a few, but
this list only scratches the surface.
Guest Accounts: login
pogo.ai.mit.edu guest
geech.ai.mit.edu guest
churchy.ai.mit.edu guest
gnu.ai.mit.edu guest
Internet BBS's:
(All these places are PD, but that's life. But in my opinion,
there's only one place to call, and that's mars. It has multi-
user chat, a library with ALL the phracks, a good TelComm
section, and you can often find some elite people there. (If
not, you can rag on the lmaers.) Anyway, if you see a guy named
Weapons, say hi. It's probably me.)
address (mnemonic) (numeric) login details