Need help with filters.

rspence@trucom.com
Mon, 06 Jan 1997 10:04:00 -0800

Is there any additional entries I could add to the current e-mail only
filter that I'm currently using, that will restrict e-mail only
customers from been able to telnet/ftp etc.

I use the following filter for e-mail only accounts, but this filter
only restricts users from surfing the Net, they can still telnet/ftp.

************************************************************
mail.only.in
************************************************************
permit udp dst eq
53
permit tcp dst eq
25
permit tcp dst eq
110
permit tcp src eq
113
permit
icmp
deny

*************************************************************
mail.only.out
*************************************************************

Thanks in advance.