jeffry s wrote: > i know it is forbidden to sell open source software. Actually, you can sell GPL software. But that's not the point here. Persumably the client knows all about it and knows it exists and "selling" it per-se is not the important part here. > let say i have costumer want me to modified an open source php script. > i have the right to charge him the service to modified the software. Certainly this is indeed your right. > but this costumer ask me to do one thing against the gpl software. > he want me to remove all the link and powered by link (anything visible to > the end user) That's nothing to do with the GPL. The author may put terms of use out there, but removing the links produced by the code is just the same as any other modification. Sure, it doesn't feel right, but in theory there is nothing wrong with this. > what should i do to satisfy my costumer without making myself against > the spirit of open source community? I'd suggest that you ask your client to reconsider the attribution links or perhaps agree to a toned down version of them. Also as it's GPL and as you are "supplying" the modifications you make to your client, you are obliged to release the changes you make to the community. If this was a 100% internal development (e.g. you are employed directly by your client, not as a contractor), then you are not obliged to release the changes. Releasing the changes would certainly be within the spirit of the GPL and the community. IANAL so apologies if I've gotten anything wrong here. Col -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php