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If you are a Sum98 onsite or online participant and need space to create files on the Forum server, we'll make a folder for you in the directory: ~http/documents/workshops/sum98/participants/ In a browser this is the URL: http://mathforum.org/workshops/sum98/participants/ [On the Forum server, in Fetch or a telnet session, the directory ~http/documents/workshops/sum98/ is the same as /var/www/html/workshops/sum98/ because ~http/documents/ is shorthand for /var/www/html/ ]
To get to your directory: 1. Open Fetch. ENTER: Host: mathforum.org User ID: Password: Directory: ~http/documents/workshops/sum98/participants/ 2. Find your folder and double-click on it to open it.
To make a FETCH bookmark that will allow you to open Fetch in a directory you often use: 1. In Fetch, navigate to the directory you want, e.g. ~http/documents/workshops/sum98/participants/myfolder/ 2. From the FILE menu, choose SAVE BOOKMARK. A window will open that will allow you to navigate on your computer to your User Folder, name the bookmark (e.g. Fetch.myfolder), and save it. 3. The next time you want to open Fetch and go to your folder, just double-click on the Fetch.myfolder icon in your User Folder.
First, let's use FETCH to look at permissions in a directory. We'll use Cathi Sanders' directory for practice. In FETCH, go to ~http/documents/workshops/sum98/participants/sanders/. At the top of the window you should see sanders and in the window below, something like: ForumTrialPage... JSP JSP-DR3 triangle.gif The JSP's are directories with files in them from Key Curriculum Press. Cathi may use them for JavaSketchpad. The others are files Cathi has already put into her directory.
To look at permissions, in Fetch go to the REMOTE menu and VIEW FILE LIST. (permissions OWNER GROUP size date created file/folder name) -rw-r--r-- 1 cathi sum98 777 Jul 4 23:25 ForumTrialPage.html drwxrwxr-x 3 sarah sum98 8192 Jun 12 02:49 JSP drwxrwxr-x 3 sarah sum98 8192 Jun 24 16:59 JSP-DR3 -rw-r--r-- 1 cathi sum98 1727 Jul 4 23:26 triangle.gif Directories have a d in front of them. Files start right out with just a dash.
PERMISSIONS are set by default in groups of 3 when you create a file: rwx stands for read, write, execute for the OWNER - the person who created the file or directory GROUP - in this case sum98, which has been set up to include Institute participants plus staff WORLD - everybody else The defaults when you create a file are -rw-r--r-- . (For now we won't worry about directories, which have x's meaning they are executable or viewable; you don't need an x for a file unless it's a program that you have to run.) When you see: -rw-r--r-- the first dash shows it's a file the next rw- means the OWNER (the person who created it) can READ and WRITE to this file the next r-- means the GROUP (sum98) can only read it, NOT write to it the last r-- means the WORLD (everybody else) can only read it. Don't change this for files.
When Cathi wants the group to be able to write to one of her files, she needs to set the GROUP permissions for that file to rw- . To do this, in Fetch she can go to the directory the file is in and: 1. CLICK ONCE on the file to highlight it. 2. Go to the REMOTE menu and choose SET PERMISSIONS. The window that will open up might look like this: Set file/folder permissions to: Search/ Read Write Execute Owner: x x Group: x Everyone: x 3. CHECK THE BOX under WRITE for GROUP: Search/ Read Write Execute Owner: x x Group: x x Everyone: x 4. CLICK OK. Only the Owner of a file or directory (and a few staff who have root access) can set its permissions.
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