==Phrack Inc.==
           Volume One, Issue Two, Phile 8 of 9

The Hackers Guide to RSTS-E 8.0 Data Line. TWX 650-240-6356

Rsts is one of the most versatile operating systems available for the PDP-11 series of computers. It can emulate both RSX and RT-11 (though not fully), and is often a choice where multiple concurrent operating systems must be online. I was a system manager on an 11-23 for about a year and learned a fair amount about the OS (perhaps forgetting a good deal in the interim). This phile applies to release 8.0 and the entire 7 series. By the way, version 9.0 is it - DEC is discontinuing RSTS with that release and using 9.0 as a bridge to VMS for the PDP-11 series. The logon will tell which version you are hacking.

If the SYSTAT-before-logon has been disabled (It probably has), no big worry. Account 1,2 must be present on the system and contains most of the system utilities. On booting, the account is called at least 8 times to put batch processors and spoolers online. Changing [1,2]'s passwords in the command file is a tedious process - most system managers are too lazy, so it won't change often. Oh yes, the default PW for 1,2 is SYSLIB. This knowledge should cut hacking time considerably for many systems. When you get in, RUN $MONEY. This gives all accounts, KCT's (Billing units), accesses, time on system, and PASSWORDS, if you ask. Don't reset the system when it asks, it merely zeroes the program and not the hardware, but could tip someone off that he system had been hacked.

Personally, I like running out of a new account, so RUN $REACT. Pick a new account , making sure the first number (before the comma) is a "1" to get full privilege. Accept defaults for disk placement. As for Cluster size, I prefer 4. It's large enough to get fast disk access, but small enough so that little space is wasted for small files. Cluster size is shown (CLU or CLS) on MONEY and on DIR/FULL. Follow conventions and you'll stand less chance of being noticed.

RSTS has some of the most complete HELP files short of a CDC mainframe. HELP HELP will give the forst screen of the nested menus. Be sure to do this from a privileged account or you'll miss about half of the best commands. HELP SYSTAT will give a thorough overview of the system setup & status program.

RUN $SYSTAT (or just SYS if the Concise Command Language is set up normally). On the left is a report of te system users including all background jobs (print spoolers, batch processors and the like), their keyboard, and what state they are in (RN=run, ^C=waiting for input, DCL=logged on, no program running, DR=Disk Read, DW=Disk Write). To the right is a list of busy I/O devices. At the end is a full report of Disk names (DR:=Hard, DU:= floppy), and space allocated/free. To cause some havoc pick a target KB, preferrably one running a financial type program. Note the Job leftmost column. Simply type UT KILL and he's totally gone, without so much as a logoff message. If done during a Disk Write - get out the backups!!

If just tying up resources is more your game, RUN $VT50PY. It gives the utilization readout on a 20 second basis, or whenever a key is struck. The program itself uses a lot of CPU time, so when the Interval <20>? comes up, enter a 1 and watch the EXEC percent go through the roof.

If wasting paper is more your style, find the KB: number of the printer (KB0: is the console) from SYSTAT when it's in use, or try LP1:. Find a long text file (DIR [*,*]*.txt) and COPY LP1:=filename. Don't forget the colon when referring to keyboards or printers.

Try DTR. If DATATRIEVE is online, you can set up a database of huge proportions. Again, full help is available. SET GUIDE (configure your terminal for VT-100) and it takes you through every step.