how to share file over LAN in ubuntu 12.10. I have shared some files , but on the other machine it keep asking for password
When setting up the share, check the "Guest access (for people without a user account)" option.
If guest access is not checked, you will need to provide the user name and password of a user on the Ubuntu source machine who has access to that file.
Note: Please use a share name up to 11 characters long and preferably without spaces for universal compatibility.