... These installation steps use the Apache web server on Linux as an example. ... User nobody is used for all files manipulated by the CGI scripts (executed by the Web server), and user twiki for all other files. ... NOTE: This Guide assumes user nobody ownership for all files manipulated by the CGI scripts (executed by the Web server), and user twiki for all other files. ... Set the permission of the twiki/data directory and its subdirectories so that files in there are writable by user nobody . ...