<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <meta content="text/html;charset=Big5" http-equiv="Content-Type"> <title></title> </head> <body bgcolor="#ffffff" text="#000000"> Dear All, How can we limit a user a/c when telnet to the server : eg : [edward@svr1 ~]$ ls -l -a total 36 drwx------ 3 edward edward 4096 Feb 6 22:51 . drwxr-xr-x 5 root root 4096 Feb 6 22:50 .. -rw------- 1 edward edward 14 Feb 6 22:52 .bash_history -rw-r--r-- 1 edward edward 24 Feb 6 22:50 .bash_logout -rw-r--r-- 1 edward edward 176 Feb 6 22:50 .bash_profile -rw-r--r-- 1 edward edward 124 Feb 6 22:50 .bashrc drwxr-xr-x 3 edward edward 4096 Feb 6 22:50 .kde -rw-r--r-- 1 edward edward 658 Feb 6 22:50 .zshrc [edward@svr1 ~]$ Prevent user "edward" from doing the following : modify / del the exiting files ( default by the system ). Allow user "edward" create / del / modify other his own files / dirs. Edward. </body> </html>