[SLUG] CGI/Perl Application - Speed Problems (SQL-ledger and Point-of-Sale)
Hi, all Any SQL-ledger users at SLUG? Re: POS - productlist, checkbox required instead of radio button When picking product items, would it be possible to have checkboxes instead of radio buttons so that one can pick multiple items to build up the invoice? To select one item at a time takes ages. The other issue is that every time the page is refreshed with a single new item, this can take from 5 to 25 seconds - despite the fact that user is on the local host, not on a remote terminal. Could this lack of speed be due to Apache not being tuned? For a ten or 20-item invoice it would take about 5 minutes to build up the invoice, because remember that a fresh product list is called up after choosing the last item. Any pointers? I suspect my 600 mhz CPU and 64mb ram is not the issue as this is just a tiny demo database. Are there any other good open-source POS programs out there? On my laptop I have currently installed 1.Linux OS, 2. Apache as the web Http server and 3.Postgresql as the database. I also have an accounting application written in Perl which can use any browser such as Mozilla or Explorer to access the database. The client and browser can be remote. The problem I am having is that with this setup, each page (text data only) takes minimum 5 to 6 seconds to call up with the web server from the database. Complex instructions take even longer - upto 30 seconds. There is no difference whether the client is remote (say, on a Windows machine with explorer browser) or on the same machine as the main DB and http server (where I use a Mozilla browser). My main objective is to have a shopping cart type of application that responds quickly. I have the basic software infrastructure but how to make it work efficiently is the issue. Perhaps I need to have Java mini application at each client (?) - anyway I am not sure. How do these other online shopping cart type of websites function with similar infrastructure? Ken -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] CGI/Perl Application - Speed Problems (SQL-ledger and Point-of-Sale)
On Sat, Sep 25, 2004 at 07:55:00AM +1000, Kirti Pankhania wrote: Any SQL-ledger users at SLUG? There are at least two of us, although I don't think either of us are using the POS functionality. When picking product items, would it be possible to have checkboxes instead of radio buttons so that one can pick multiple items to build up the invoice? To select one item at a time takes ages. I presume it would be possible. But this isn't the place to discuss this -- I'd keep it on sql-ledger-users. The other issue is that every time the page is refreshed with a single new item, this can take from 5 to 25 seconds - despite the fact that user is on the local host, not on a remote terminal. Could this lack of speed be due to Apache not being tuned? For a ten or 20-item invoice it would take about 5 minutes to build up the invoice, because remember that a fresh product list is called up after choosing the last item. Any pointers? I suspect my 600 mhz CPU and 64mb ram is not the issue as this is just a tiny demo database. I think that the 64MB of RAM is a possible cause of problems. What else is running on the machine? Since you're running locally, your web browser is probably chewing up all the core, causing Apache to have to swap out, then swap in to service the request, then swap out to allow the browser to swap back in to display the result, and so on and so forth. Installing SQL Ledger on a machine which isn't overcommitted might be a good start, or at least determining (through top or whatever) whether your Apache is in fact swapping and frothing. I say this as someone whose SQL Ledger setup is running on a 64MB P166 (pure server, though, with no X or web browser or anything else chewing up all the RAM) and who hasn't noticed any 5-25 second delays while creating invoices (and I'd get pissed off if I had them, because I'm an impatient kind of guy). - Matt signature.asc Description: Digital signature -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
RE: [SLUG] CGI
Yes. Assuming the ip address is 10.10.10.10 then it will be http_access allow manager localhost 10.10.10.10 http_access deny manager I am not sure what version of squid you are running but you might also want to specify which actions are allowed via cachemgr.cgi in squid.conf. Format is something like (taken straight from my squid.conf file): #Example: # cachemgr_passwd secret shutdown # cachemgr_passwd lesssecret info stats/objects # cachemgr_passwd disable all Good luck. -Original Message- From: Adam Hewitt [mailto:[EMAIL PROTECTED]] Sent: Monday, 25 March 2002 9:07 PM To: Hartono, Susanto Cc: [EMAIL PROTECTED] Subject: RE: [SLUG] CGI I assume that 'allowed-ip-address' is actually the IP address that Im allowing not the actual words you have typed their?? http_access allow manager localhost allowed-ip-address http_access deny manager -- SLUG - Sydney Linux User Group Mailing List - http://slug.org.au/ More Info: http://lists.slug.org.au/listinfo/slug
RE: [SLUG] CGI
I assume that 'allowed-ip-address' is actually the IP address that Im allowing not the actual words you have typed their?? http_access allow manager localhost allowed-ip-address http_access deny manager -- SLUG - Sydney Linux User Group Mailing List - http://slug.org.au/ More Info: http://lists.slug.org.au/listinfo/slug
[SLUG] CGI
Hi, Ok I think I have gotten to a point where the squid-cgi (or cachemgr.cgi) is working, however I am not able to connect, and I am getting a You are not authorized to view this page You might not have permission to view this directory or page using the credentials you supplied. error. Could someone please tell me which files may be setup incorrectly in order to give me access...I have added the following to my srm.conf file: ScriptAlias /cgi-bin/ /usr/local/cgi-bin/ and this to my access.conf file: Location /Squid/cgi-bin/cachemgr.cgi order deny,allow deny from all allow from 192.168.0.1 /Location is this all I need?? Adam. -- SLUG - Sydney Linux User Group Mailing List - http://slug.org.au/ More Info: http://lists.slug.org.au/listinfo/slug
Re: [SLUG] CGI
On Sun, 24 Mar 2002, Adam Hewitt wrote: please tell me which files may be setup incorrectly in order to give me access...I have added the following to my srm.conf file: ScriptAlias /cgi-bin/ /usr/local/cgi-bin/ and this to my access.conf file: Location /Squid/cgi-bin/cachemgr.cgi order deny,allow deny from all allow from 192.168.0.1 /Location I've never installed squid before, but something doesn't look right here... There should be something matching up in what you've added to both files. Check exactly where cachemgr.cgi is on the harddisk. From what I see above, I'm expecting it will be in /usr/local/cgi-bin, in which case the scriptalias line is wrong. Try this line instead: ScriptAlias /Squid/cgi-bin/ /usr/local/cgi-bin/ It is also possible that apache just isn't set up to allow cgi scripts. There is fairly good comments in the apache config files, but look for a line something like ScriptHandler .cgi ... It's probably commented out. Delete the hash sign in front and restart apache. Another possibility is that you're not getting through the 'allow from' filter. is 192.168.0.1 your local machine? TCP/IP connections within your local machine usually end up being from 127.0.0.1, rather than the address of your ethernet card. I might be able to come up with some more ideas. Let me know how you go. -- Jessica Mayo. (Everything with a Grin :) -- SLUG - Sydney Linux User Group Mailing List - http://slug.org.au/ More Info: http://lists.slug.org.au/listinfo/slug
Re: [SLUG] CGI
On Sun, Mar 24, 2002 at 08:43:39PM +1100, Adam Hewitt wrote: order deny,allow deny from all allow from 192.168.0.1 Swap the order of these last two lines. Here, you're saying deny everything, and then allow 192.168.0.1 if no decision's been made. Either that, or change the first line to be order allow,deny. -- Daniel Stone[EMAIL PROTECTED] Md Booting... /vmunix.el msg21906/pgp0.pgp Description: PGP signature
RE: [SLUG] CGI
Firstly, I think your order of deny's and allow's is important...if you have deny all before allow 192.168.0.1 then it 192.168.0.1 will be denied...if you put allow from 192.168.0.1 then deny all, if will check if the request is coming from 192.168.0.1, if not it will deny all...i know that sounds really vague but that about the best I can explain it at 10 to four in the morning. Try that tell us what happensI know I've use the cachemgr.cgi once or twice before but never really had enough troubles to really look into how it works. -- -Original Message- From: Adam Hewitt [mailto:[EMAIL PROTECTED]] Sent: Sunday, 24 March 2002 8`44 PM To: [EMAIL PROTECTED] Subject: [SLUG] CGI Hi, Ok I think I have gotten to a point where the squid-cgi (or cachemgr.cgi) is working, however I am not able to connect, and I am getting a You are not authorized to view this page You might not have permission to view this directory or page using the credentials you supplied. error. Could someone please tell me which files may be setup incorrectly in order to give me access...I have added the following to my srm.conf file: ScriptAlias /cgi-bin/ /usr/local/cgi-bin/ and this to my access.conf file: Location /Squid/cgi-bin/cachemgr.cgi order deny,allow deny from all allow from 192.168.0.1 /Location is this all I need?? Adam. -- SLUG - Sydney Linux User Group Mailing List - http://slug.org.au/ More Info: http://lists.slug.org.au/listinfo/slug Searching for A Better Way to a home loan ?. Call RAMS on 13 7267, or go to http://www.rams.com.au The e-mail and any attachments may contain confidential information. If you receive it in error you must not use or disclose the information. You must tell us and delete it. We do not waive any legal privilege by sending it. RAMS does not promise that the email is free from virus defect or error. -- SLUG - Sydney Linux User Group Mailing List - http://slug.org.au/ More Info: http://lists.slug.org.au/listinfo/slug
RE: [SLUG] CGI
-Original Message- From: Adam Hewitt [mailto:[EMAIL PROTECTED]] I am assuming your squid.conf file already has these entries in it? http_access allow manager localhost allowed-ip-address http_access deny manager -- SLUG - Sydney Linux User Group Mailing List - http://slug.org.au/ More Info: http://lists.slug.org.au/listinfo/slug
Re: [SLUG] CGI
On Fri, 14 Jul 2000 14:42:23 +1000, Matt Kozera wrote: Why dont you just ring up anonymously* and ask them why they support it ? Then report back to the list, i'm dying to know why they wont support it, Agent 62 8[ I rang them this morning (I only found out who they were yesterday arvo). Techie - 'I have nothing against it (PHP) myself, but management has said that they will not support it now or in the future' Me - 'Can I ask why?' Techie - 'I don't know the reason' BTW it is a Linux shop -- FormViewer - view your form from many angles Version 1.05 now available http://www.cia.com.au/pfaulks -- SLUG - Sydney Linux User Group Mailing List - http://slug.org.au/ More Info: http://slug.org.au/lists/listinfo/slug
Re: [SLUG] CGI
Peter Faulks wrote: G'day Sluggers, I've been offered a job to write a CGI programme. The client's ISP has a company policy against the use of PHP. Are there known security issues with PHP? Very interesting ! Very weird ! :) It could be said that PHP is relatively new and therefore not refined with its security. Then again they could be using a Winblows (haha he hehe HEH ehehe heh) server in which case they might not trust it running it ? I dunno. Why dont you just ring up anonymously* and ask them why they support it ? Then report back to the list, i'm dying to know why they wont support it, Agent 62 8[ Regards, Matt * ftp clients teach *YOU* new words -- SLUG - Sydney Linux User Group Mailing List - http://slug.org.au/ More Info: http://slug.org.au/lists/listinfo/slug
[SLUG] CGI
G'day Sluggers, I've been offered a job to write a CGI programme. The client's ISP has a company policy against the use of PHP. Are there known security issues with PHP? Also, are there any security issues with fast cgi (Apache/mysql)? I had a quick look at the source, it seems to me there are a few places where buffer overrun could be induced, but I haven't really had a good look yet. I like the concept of fast cgi, ie no database connect/disconnect every time a cgi request comes in, but I hear fast cgi hasn't really taken off.. Comments? Regards 'The day Microsoft makes something that doesn't suck is the day they start making vacuum cleaners.' -- SLUG - Sydney Linux User Group Mailing List - http://slug.org.au/ More Info: http://slug.org.au/lists/listinfo/slug
Re: [SLUG] CGI
I find it inconceivable a company would have a policy against PHP, maybe against ASP... perl / mysql is damn good, i recommend it i would also have to recommend java (eg. servlets and JSP) which makes an incredibly good environment. Dean Peter Faulks wrote: G'day Sluggers, I've been offered a job to write a CGI programme. The client's ISP has a company policy against the use of PHP. Are there known security issues with PHP? Also, are there any security issues with fast cgi (Apache/mysql)? I had a quick look at the source, it seems to me there are a few places where buffer overrun could be induced, but I haven't really had a good look yet. I like the concept of fast cgi, ie no database connect/disconnect every time a cgi request comes in, but I hear fast cgi hasn't really taken off.. Comments? Regards 'The day Microsoft makes something that doesn't suck is the day they start making vacuum cleaners.' -- SLUG - Sydney Linux User Group Mailing List - http://slug.org.au/ More Info: http://slug.org.au/lists/listinfo/slug -- BONG: http://www.bong.com.au EMAIL... [EMAIL PROTECTED] [EMAIL PROTECTED] [EMAIL PROTECTED] [EMAIL PROTECTED] ICQ: 16867613 -- SLUG - Sydney Linux User Group Mailing List - http://slug.org.au/ More Info: http://slug.org.au/lists/listinfo/slug
Re: [SLUG] CGI
Peter Faulks wrote: The client's ISP has a company policy against the use of PHP. Why? Are the ASP/IIS fans? :) Are there known security issues with PHP? Nope. You can even lock it down more by specifying safe mode and doing various bits and bobs in the compilation and cojnfiguration such as discarding redirection heading. Have a look at http://au.php.net:81/manual/html/security.html I like the concept of fast cgi, ie no database connect/disconnect every time a cgi request comes in, but I hear fast cgi hasn't really taken off.. Comments? A lot of the cgi 'bolt-ons' don't seem to have gathered much support - that's true. MOst people are happy to use mod_perl/php etc. Cheers, Graeme -- SLUG - Sydney Linux User Group Mailing List - http://slug.org.au/ More Info: http://slug.org.au/lists/listinfo/slug
Re: [SLUG] CGI
Gday Peter, There is a new feature in PHP 4.0.1 where the ISP can shutdown any function of PHP from within the php.ini file. Its weird that they allow "CGI" but not PHP. You can get just as malicious with Perl as you can with PHP. Of Course, they should be running the CGI under SuEXEC so you only get the rights of your user anyway. Matta Peter Faulks wrote: G'day Sluggers, I've been offered a job to write a CGI programme. The client's ISP has a company policy against the use of PHP. Are there known security issues with PHP? Also, are there any security issues with fast cgi (Apache/mysql)? I had a quick look at the source, it seems to me there are a few places where buffer overrun could be induced, but I haven't really had a good look yet. I like the concept of fast cgi, ie no database connect/disconnect every time a cgi request comes in, but I hear fast cgi hasn't really taken off.. Comments? Regards 'The day Microsoft makes something that doesn't suck is the day they start making vacuum cleaners.' -- SLUG - Sydney Linux User Group Mailing List - http://slug.org.au/ More Info: http://slug.org.au/lists/listinfo/slug -- Matt Allen Linux/PHP eCommerce Solutions Linux Worx Linux Networking www.linuxworx.com.auConsulting [EMAIL PROTECTED] 0413 777 771 -- SLUG - Sydney Linux User Group Mailing List - http://slug.org.au/ More Info: http://slug.org.au/lists/listinfo/slug
