Open Ports
- From: "Chris Bond" <chris@xxxxxxxxxxxx>
- To: "[ISAserver.org Discussion List]" <isalist@xxxxxxxxxxxxx>
- Date: Fri, 31 Aug 2001 12:27:14 +0100
Hi,
Just ran a port scan on the external interface of ISA and get the following
results:
25 smtp
53 domain
88 kerberos
110 pop3
135 epmap
139 netbios-ssn
143 imap
389 ldap
443 https
445 microsoft-ds
464 kpasswd
636 ldaps
1723 pptp
Plus a few others
Luckly at the moment the cisco router has an ACL on that only allows 25
through. What is the correct solution to stop it listening for these
requests on the external interface (apart from port 25 ofcourse). Although
it does seem to say "* BYE Connection refused" and drop the packets, I just
find it werid that it has the ports are open in the first place?
Anybody got any ideas?
Kind Regards,
Chris Bond
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