The July issue of Linux Journal (#27) will be printed 22 May 1996, and will be mailed from the printers on 28 May 1996. Subscription orders received by 3:00 pm PDT Friday, 13 May 1996 will start with issue #27. Call during normal West Coast business hours at 206-782-7733. TABLE OF CONTENTS LINUX JOURNAL #27 JULY 1996 FEATURES The New Korn Shell ksh93, the latest major revision of the KornShell language, provides an alternative to Tcl and Perl. by David G. Korn, Charles J. Northrup, and Jeffery Korn Filters: Doing it Your Way A look at several of the more flexible filters, programs that read some input, perform some operation on it, and write the altered data as output. by Malcolm Murphy Understanding Red Hat Run Levels How to easily add to or modify the existing subsystems of Red at distributions of Linux. by Mark F. Komarinski IP Masquerading with Linux How to enable and configure IP masquerading, also known as Network Address Translation, for Linux by Chris Kostick NEWS & ARTICLES Object Databases: Not just for CAD/CAM Anymore by Gregory A. Meinke Samba in the Home and Office by Peter Kelly Maceater by Jonathan Gross Serving Two Masters by Michael K. Johnson Introducing HyperNews by David Alan Black Basic fvwm Configuration by John M. Fisk COLUMNS Letters to the Editor Stop the Presses New Products USELINUX Announcement DIRECTORIES Consultants Directory Advertisers Index Linux Resources UPCOMING: Kernel Korner: Conclusion of Device Drivers Series Writing Bug Reports >>>Note that SSC has started a new magazine called WEBsmith. The premier issue of WEBsmith was included as a supplement in the January issue of Linux Journal, and the March and May issues have been published and are available. For more info check out our web site, http://www.ssc.com/ Linux Journal is carried by some newsstands (including all Computer Literacy stores in Silicon Valley) and is delivered to newsstands by two newsstand distributors. If you know a place selling magazines that you think should stock LJ, send e-mail to dist@ssc.com or have them call SSC at 206-782-7733. Getting LJ on newsstands is one of the best ways we can show the non-Internet crowd that Linux is for real. Subscriptions are: US$22/year U.S. US$27/year Canada US$32/year Foreign US$39/2 years U.S. US$49/2 years Canada US$54/2 years Foreign Linux Journal P.O. Box 85867 Seattle, WA 98145-1867 Fax: +1 206-782-7191 Tel: +1 206-782-7733 E-mail: subs@ssc.com URL: http://www.ssc.com/lj/ Our public key (for encrypting your credit card number) is available by fingering info@ssc.com. Back issues are available (except for Issues #1, #3, #4 and #17---we're out) for $4 each, or $6 each non-North American airmail. ***Note: All funds should be in U.S. dollars*** Other questions/comments can be sent to: linux@ssc.com