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can help me for this program
by pradeep samale 05 Sep '03

05 Sep '03

below is the method to create our custom session in php and mysql but it gives an error to that start() is undefind in login.php pl help me.. create database session; create table sessions ( id int(10) NOT NULL AUTO_INCREMENT, sess_key char(6) NOT NULL, val varchar(250) NOT NULL, ip varchar(35) NOT NULL, access int(25) NOT NULL, PRIMARY KEY(id) ); sess.php <?php $host = "localhost"; $user = "user"; $pass = "pass"; $db = "db"; $dbc = mysql_connect($host,$user,$pass) or die("Cannot establish a connection to the database."); mysql_select_db($db,$dbc); class session { var $key; var $timeout; } // start() will initialize the session by generating the session key or ID function start($timeout = "") { // create an array with all the letters of the alphabet $letters = range("a","z"); // declare the $key variable $key = ""; // generate our session's key formatted such as #a#aa# for($i = 0; $i < 6; $i++) { if(($i == 0) || ($i == 2) || ($i == 5)) $key .= rand(0,9); if(($i == 1) || ($i == 3) || ($i == 4)) $key .= $letters[rand(0,25)]; } // store the session's key in a method of the class $this->key = $key; // perform a conditional to test if the user defined the timeout and if not store the default value. if($timeout == "") $this->timeout = 300; // five minutes else $this->timeout = $timeout; return 0; } // this function will register a value to session. (only one value, see replace() to update the value) function register($val) { // if key is not generated run start() if($this->key == "") $this->start(); $insert = mysql_query("INSERT INTO sessions (sess_key, val, ip, sec_expire, stamp_expire, access) VALUES ('" . $this->key. "', '" . addslashes($val) . "' , '" . $_SERVER["REMOTE_ADDR"] . "' , " . $this->timeout . "," . (time() + $this->timeout) . "," . time() .");"); // set the cookie that will store the session key setcookie("sess_key",$this->key,time()+3600); } function read() { // set $sess_val global - the variable of the session value. global $sess_val; // if the cookie doesn't exisit send them back to the login screen. if(!$_COOKIE["sess_key"]) { header("Location: login.php"); exit; } // fetch the session key from the cookie. $this->key = $_COOKIE["sess_key"]; // fetch the session value $query = mysql_query("SELECT val FROM sessions WHERE sess_key = '" . $this->key . "'") or die("query failed - line 55"); if(mysql_num_rows($query) == 0) { header("Location: login.php"); exit; } $fetch = mysql_fetch_array($query); // store the session value to $sess_val $sess_val = stripslashes($fetch["val"]); // test if session has reached the expiration point $this->expire(); // this code will only run if expire() returned falsed - we update the last access point to now. $update = mysql_query("UPDATE sessions SET access = " . time() . " WHERE sess_key = '" . $this->key . "'") or die("query failed - line 70"); } // this function will test if the user has been inactive for the defined timeout function expire() { // fetch the last access and expirations from the database $query = mysql_query("SELECT access, sec_expire, stamp_expire FROM sessions WHERE sess_key = '" . $this->key . "'") or die("query failed - line 78"); $fetch = mysql_fetch_array($query); $access = $fetch["access"]; $expire = $fetch["sec_expire"]; $timeout = $fetch["stamp_expire"]; // test if session is expired based on defined timeout if(($timeout - $access) <= ($expire - $expire)) { $this->destory(); die("Your session has expired. Please re-login."); } } // this function will update the session value function replace($val) { // fetch the user key from cookie $this->key = $_COOKIE["sess_key"]; // update the database with the new value $query = mysql_query("UPDATE sessions SET val = '" . $val . "' WHERE sess_key = '" . $this->key) or die("query failed - line 77"); } // this function will kill the session function destroy($key = "") { // fetch the user key from cookie $this->key = $_COOKIE["sess_key"]; // delete session from database $query = mysql_query("DELETE FROM sessions WHERE sess_key = '" . $this->key . "'") or die("query failed - line 86"); // remove cookie from the user's computer $delete = setcookie("sess_key" , $this->key, time()-3600); if($query && $delete) { header("Location login.php"); exit; } } login.php <?php include "sess.php"; if($login) { $sess = new session; $sess->start(); $sess->register($username); header("Location: welcome.php"); } ?> <html> <head> <title>login</title> </head> <body> <form method="post" action="<?= $PHP_SELF; ?>"> Username: <input type="text" name="username"><br> Password: <input type="password" name="password"><br> <br> <input type="submit" name="login" value="Login"> </body> </html> welcome.php <?php include "sess.php"; $sess = new session; if($logout == "yes") { $sess->destroy(); header("Location: login.php"); exit; } $sess->read(); ?> <html> <head> <title>welcome</title> </head> <body> Welcome, <?= $sess_val; ?><br> <a href="<?= $PHP_SELF; ?>?logout=yes">Logout</a> </body> </html> _________________________________________________________________ On the move? Need to access your mails? http://server1.msn.co.in/sp03/mobilesms/index.asp Hotmail is now on your mobile!

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shell script for file comparison
by Homyar Bhathena 04 Sep '03

04 Sep '03

Is it possible to write a shell script to extract the number of files added in a particular directory in a specific time duration (lets say last 2 hours) and then dtermine how many combinations have the same file size and based on that, do a file compare for the extracted files having same file size. If someone has a similar script existing. Please send it to me. thanks Homyar.

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Re: [ILUG-BOM] shell script for file comparison
by Sthitaprajna 04 Sep '03

04 Sep '03

Homyar Bhathena wrote: > Is it possible to write a shell script to extract the number of files added > in a particular directory in a specific time duration (lets say last 2 > hours) and then dtermine how many combinations have the same file size and > based on that, do a file compare for the extracted files having same file > size. You could write a simple shell script, or use perl. Look at curl and diff. I am not sure what comparing by file sizes will give you. Would'nt you rather do a md5sum check? Something like this: # compare file checksums md5new=`md5 -q $NEW_FILE` md5old=`md5 -q $LIST_FILE` if [ $md5old = $md5new ] then # files are same, exit exit 0 fi # files differ, mv new to old text list file mv -f $NEW_FILE $LIST_FILE

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Changing Apache Server: header
by Satya 03 Sep '03

03 Sep '03

This is one of the headers in an HTTP response from my web server: Server: Apache/1.3.27 (Unix) Debian GNU/Linux mod_layout/3.2 How would I tell Apache to change that response header? Google searches show that Apache 2+ can use mod_headers, Apache <2 needs a recompile. True? -- Satya. <URL:http://satya.virtualave.net/> I didn't know it was impossible when I did it.

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xscreensaver has inappropriate defaults
by Philip S Tellis 03 Sep '03

03 Sep '03

There's a bug posted at redhat's bugtracker: http://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=79993 -- Consider well the proportions of things. It is better to be a young June-bug than an old bird of paradise. -- Mark Twain, "Pudd'nhead Wilson's Calendar"

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Re: [ILUG-BOM] [OT] J2EE vs LAMP
by Tahir Hashmi 03 Sep '03

03 Sep '03

> From: > Parag Shah <pshah(a)adaptivesoftware.biz> > Date: > Tue, 02 Sep 2003 15:44:08 +0530 > To: > I have been trying to research pro's and con's of building web based > Project Management application using J2EE and LAMP. The main factors I > am considerting are: > > 1. Speed of developement > 2. Salary of programmers > 3. Security IMHO, J2EE and LAMP differ largely in scalability and complexity. J2EE is more targeted towards complex applications, while LAMP is more suitable for small - medium scale web applications. Part of the reason is that J2EE has got way too many features to be applicable in all web-apps and the resources required to get the middle-ware up and running are much more. Get atleast a GB of RAM if you want to deploy on a J2EE app server like JBoss or WebLogic. That done, the application development model, especially EJB (quite similar to CORBA), is really powerful and flexible though it's not interoperable. LAMP should be sufficient for a low complexity application and MySQL would be the first thing to become a limiting factor in load taking capacity, provided the hardware and network are capable enough. FYI, sourceforge.net is done in PHP with DB2 having replaced MySQL not too long ago. I guess LAMP would suffice for the Project Management Application. Personally, I am also planning to look into C++ with XML as a platform for enterprise applications and web services. There are some really capable application development frameworks like ACE available for it. Generally, stuff that's available in J2EE is also available in C++. It's just that the former gets noticed since there's no c++.bigcorp.com. Oh, but my opinion may be biased due to my perennial rant against Java, the platform. ;) -- Tahir Hashmi code_martial AT softhome.net http://www.codemartial.org I have seen The Source

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Can you help RMS and the FSF?
by Frederick Noronha (FN) 03 Sep '03

03 Sep '03

This note from RMS is self-explanatory. Could you help? It's something that could really make a world of a difference to the world of Free Software, and how far it reaches. Do you want to make your work relevant to many others? FN ---- Could you please forward this to India-egov(a)yahoogroups.com, pubsoft(a)isoc.org, fsf-friends(a)gnu.org.in, linux-india-general(a)lists.sourceforge.net, gkd(a)phoenix.edc.org, bytesforall_readers(a)yahoogroups.com since most of those lists will not accept mail from me? Thirdly, instead of reinventing the wheel, we do need to keep track of the initiatives underway at the international and national levels. In this sphere, a lot of work can -- and should -- be shared. The FSF (in the US) is developing the Free Software Directory, whose aim is to list all free software that will run on a completely free GNU or GNU/Linux system. It sounds like that is similar to the FSD. However, currently the directory lists only 2400 packages, and there are thousands more to go. Our paid staff person can only check and add some 1000 packages per year. A part-time volunteer can easily add 150 packages per year. We now have one such volunteer, in Brasil. If we had five more volunteers, we could maybe enter 2000 new packages per year. Would anyone like to volunteer? It requires some training to learn to follow our practices, to make your entries reliable and consistent with the rest of the directory, so we're looking for people who will make a commitment to keep working steadily on the directory for a year or more. If you want to volunteer, please write to jcasey(a)gnu.org. Meanwhile, if the Indian government hires one person in India to work with us, that could enable us to add 1000 more packages per year. We would appreciate the help. Knowlege is power... share it equitably! _______________________________________________ prc mailing list prc(a)mail.sarai.net http://mail.sarai.net/mailman/listinfo/prc -- ------------------------------------------------------------------------- Frederick Noronha (FN) | http://www.fredericknoronha.net Freelance Journalist | http://www.bytesforall.org http://goalinks.pitas.com | http://joingoanet.shorturl.com http://linuxinindia.pitas.com | http://www.livejournal.com/users/goalinks ------------------------------------------------------------------------- T: 0091.832.2409490 or 2409783 M: 0 9822 122436 -------------------------------------------------------------------------

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New 24x7x365 security mailing list
by Harshul Nayak (ealcatraz) 03 Sep '03

03 Sep '03

hello all, Firstly let me solemly congratulate the effort put in by many to create Ilug mumbai. keep up the good job. -regs harshul nayak SINTRAQ, is a security mailing list which informs subscribers about the latest security vulnerabilities 24x7x365. Subscription to SINTRAQ is completely free. Sintelli collates and consolidates information from hundreds of sources, providing users with a single source for all security vulnerabilities. Every time a new security vulnerability is identified Sintelli will assess, validate and create a Sintelli Security Alert, which will be delivered to SINTRAQ subscribers. We do not delay the delivery of security vulnerability information, unlike other companies. All our security alerts are referenced with CVE, Buqtraq, Nessus and CERT. SINTRAQ - The single source for security vulnerabilities Copyright © 2002-2003 Sintelli http://www.sintelli.com ---------------------------------------------------------------- The world is full of willing people; some willing to work, the rest willing to let them. - Robert Frost

3 3

by Varun(Red Hat Certified) 02 Sep '03

02 Sep '03

I have been looking for information on migrating an LVM'ed ext3 filesystem to Linux 2.6? I've been looking all over the net and from what I've found, LVM doesn't seem to be ready for 2.6 yet, or maybe I'm looking at the wrong place, Could anyone help me redirect to the proper website or give me info as to how it can be done? Linux is user-friendly, it is just picky who its friends are If GNU/Linux doesn't have the solution, you have the wrong problem mailto: varunop(a)yahoo.com website: http://varunop.blogspot.com Unix is very simple, Only it takes a genius to simplify it --------------------------------- Do you Yahoo!? Yahoo! SiteBuilder - Free, easy-to-use web site design software

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Re: [ILUG-BOM] VI(M) - Changing & Merging 2 lines?
by Jayprasad J. Hegde 02 Sep '03

02 Sep '03

On Tue, Sep 02, 2003 at 10:50:04AM +0530, Jayprasad J. Hegde wrote: > On Mon, Sep 01, 2003 at 11:29:49AM -0400, Subba Rao wrote: > the following colon command would map the <F3> function key to do this. > > :map <F3> A,<ESC>Jj > > Goto any line and press F3. Oops! Forgot to mention the assumption. The above given command would work for a file which looks like this: line1_rec1 line2_rec1 line1_rec2 line2_rec2 - JJH -- [ Jayprasad J. Hegde, http://staff.ncst.ernet.in/1/1/jjhegde/ ] Never trust an operating system you don't have sources for. ;-) -- Unknown source

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