From sandoz at umbc.edu Wed Sep 1 08:26:18 1999 From: sandoz at umbc.edu (James W. Sandoz; (BIO;FAC)) Date: Wed Aug 4 23:57:32 2004 Subject: UMBC Linux Users Group talk on Security (fwd) Message-ID: Note: Talk is in the Engineering and Computer Science Bldg at UMBC Campus Map is at http://www.umbc.edu/AboutUMBC/CampusMap/ jws forwarded posting: Newsgroups: umbc.org.linux Subject: Tutorial on Computer Security Date: 30 Aug 1999 18:56:19 -0400 Organization: University of Maryland, Baltimore County Note to LUGers: John taught this tutorial awhile back. I heard such great things about it that I asked him to do it again! He has come up with a new, updated class. Should be interesting! -Rina --- The LUG (Linux Users Group) is sponsoring a *free tutorial* on Computer Security. The tutorial will be: Sunday, September 5th at 1pm, in ECS 333. There is no need to register, just show up and enjoy the class! Our instructor, John Jasen, has loads of experience in this rapidly emerging field. He will discuss: a) physical security practises b) operational security practises c) network security practises He will also "touch on" intrusion detection software, port-scanning, compromise recovery, integrity checking software, and firewalling for an enterprise environment. Hope to see you there! Rina From rmanning at erols.com Mon Sep 6 13:28:29 1999 From: rmanning at erols.com (Rob Manning) Date: Wed Aug 4 23:57:32 2004 Subject: PM Meeting Tommorrow night!! Message-ID: <37D407CD.8C94E718@erols.com> The Baltimore Perl Monger's user's group will meet Tuesday, September 7th at 7p.m. at the University Center Lounge on the campus of the University of Maryland, Baltimore County(UMBC). A map and directions can be found at http://baltimore.pm.org/Perlmongers_Directions.html. Our speaker will be Mark-Jason Dominus, a well known guru/lecturer in the Perl community. Mark writes the column `Bricolage' which appears regularly in The Perl Journal and lectures each year at the Perl conference. Mark's talk is titled "The Perl Hardware Store", subtitled "tools you didn't know you needed". For an overview of this topic see: http://www.plover.com/~mjd/perl/TPC/1998/Hardware.html Also, for those who pledged a contribution to help cover Mark's travel expense please be sure to bring it with you. Hope to see you all there tomorrow night! Rob From theaney at toadmail.toad.net Wed Sep 8 21:09:07 1999 From: theaney at toadmail.toad.net (Tim Heaney) Date: Wed Aug 4 23:57:32 2004 Subject: PM Meeting Tommorrow night!! In-Reply-To: <37D407CD.8C94E718@erols.com> References: <37D407CD.8C94E718@erols.com> Message-ID: <14295.5827.635784.7632@suse.banshees> Rob, Jim, and all the Baltimore Perl Mongers, Thanks for arranging a truly first-rate evening of perl fun! Mark-Jason Dominus was an excellent speaker and the facilities were great. You even had refreshments! I can't imagine how it could have been better. Thanks again, Tim From sandoz at umbc.edu Thu Sep 9 05:27:59 1999 From: sandoz at umbc.edu (James W. Sandoz; (BIO;FAC)) Date: Wed Aug 4 23:57:32 2004 Subject: PM Meeting Tommorrow night!! In-Reply-To: <14295.5827.635784.7632@suse.banshees> Message-ID: > Thanks for arranging a truly first-rate evening of perl fun! > Mark-Jason Dominus was an excellent speaker and the facilities were > great. You even had refreshments! I can't imagine how it could have > been better. It was fun, wasn't it. Kudos to Rob. Quote from an attendee from the lug: "You Perl programmers are nuts!" Jim Sandoz Mr. James W. Sandoz, Instructor, UMBC Dept of Biol Sciences, 1000 Hilltop Circle Catonsville, MD 21250 voice: (410) 455-3497; fax: 455-3875; net: sandoz@umbc.edu From cshannon at mdo.net Sun Sep 19 22:11:35 1999 From: cshannon at mdo.net (Christopher Shannon) Date: Wed Aug 4 23:57:32 2004 Subject: What's going on here? Message-ID: <002101bf0315$d9cb7750$386c8acf@krishna> Greetings, I've just written a module which generates a hash of anonymous subroutines, which test whether or not a number inputed by the user is valid against a certain mask. This mask is effected by a regex in each subroutine. However, I have found that when the anonymous subs are called after a regex in the main program has been executed, it acts funny and gives unexpected output. You can test to see what I mean in the file 15.pl: copy all the attached files in the same directory and at the prompt in the directory, type 15.pl blah number And the prompts should be self explanatory. If you input either a 1 or 2 digit number (in place of 'blah'), or a Perl scalar $any_var1, etc., then the subroutine will return the number you type and it will be printed, and the program will exit. The last parameter, (number) points to a particular mask in the hash reference; you can use 'boolean', 'name', etc., if you want to experiment with it. The problem comes when you remove the # at lines 10 and 11, and try to run the program, it does not work properly. It returns whatever you input without bothering to check it with the regex. In line 11, if you substitute a value which the regex does not find, then the anonymous subroutine will work. I would like to be able to use this array of anonymous subroutines anywhere in any code, but it seems that the regexes of the main program do funny things to the regexes of the anonymous subroutines. Is there some workaround for this? Thanks in advance, regards, Chris S. -------------- next part -------------- A non-text attachment was scrubbed... Name: 15.pl Type: application/octet-stream Size: 169 bytes Desc: not available Url : http://mail.pm.org/archives/baltimore-pm/attachments/19990919/f1f19c79/15.obj -------------- next part -------------- A non-text attachment was scrubbed... Name: VCode.pm Type: application/octet-stream Size: 1416 bytes Desc: not available Url : http://mail.pm.org/archives/baltimore-pm/attachments/19990919/f1f19c79/VCode.obj -------------- next part -------------- A non-text attachment was scrubbed... Name: input.msk Type: application/octet-stream Size: 614 bytes Desc: not available Url : http://mail.pm.org/archives/baltimore-pm/attachments/19990919/f1f19c79/input.obj From cshannon at mdo.net Tue Sep 21 15:37:29 1999 From: cshannon at mdo.net (Christopher Shannon) Date: Wed Aug 4 23:57:32 2004 Subject: What's going on here? Message-ID: <005601bf0471$22e9dab0$236c8acf@krishna> >Can you send the code where you took out the defined($1) and the comma >operator? OK, it looks like the problem is solved. It seems you really pointed out where the problem was, namely with the while test condition. Actually, I was under the mistaken impression that if the next regex was unsuccessful, the $1 was undefined, or acquired a null value, which is not the case. Anyway, based on that, the solution I came up with was a little less elegant, but it works. Thanks a bunch, Tzadik! Regards, Chris S. P.S. BTW, here is the corrected code: sub CompileVCodes { my $xtype; my $regex; my @badlist; my $vcode; my $d; ($vcode, $xtype, $regex, @badlist)=@_; my $err=\&print_error; $vcode->{$xtype}= sub { (my $wrd)=@_; # $err is a reference to an error message routine. $d=$wrd=~/$regex/i; # # Here is one change while ($d eq '') &{$err}(@badlist); chomp ($wrd=); if ($wrd eq '') {return ''} $d=$wrd=~/$regex/i; # # Here is another change, the first regex is duplicated # # at the end of the loop. } return $wrd; }; } From r_m_manning at hotmail.com Tue Sep 28 06:19:10 1999 From: r_m_manning at hotmail.com (Rob Manning) Date: Wed Aug 4 23:57:32 2004 Subject: Baltimore Perl Mongers Meeting - Oct. 5 Message-ID: <19990928111911.84620.qmail@hotmail.com> The Baltimore Perl Mongers Perl user's group will meet Oct 5th (Next Tuesday) at 7:00 pm at "The Daily Grind", 501 West Cold Spring Lane. For directions see http://baltimore.pm.org/directions.html. Archie Warnock of A/WWW Enterprises will be speaking on "Databases on the Web with perl". Summary: Web-based interfaces to SQL databases can be built quickly and easily in perl using the DBI/DBD and Text::Template modules. This presentation will describe the implementation of a Web-based online dispute resolution system using Oracle, MySQL and perl. This topic is particularly relevant in today's techno-culture as many businesses and organizations are still trying to define what their "web presence" should be. For those who aren't web/database programmers this is still a good opportunity to catch a glimpse of this "hot" market trend. We'll also give away a couple of review copies of Perl books just out on the market, courtesy of O'Reilly and Associates. Hope to see you there! Rob ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com