Commit cbaf2f39 authored by Robert Ricci's avatar Robert Ricci
Browse files

Clarify direction of firewall rules.

parent b09375e2
......@@ -104,10 +104,11 @@ at other sites.
<h3>Firewalling</h3>
<p>
Emulab blocks all of the <i>low numbered</i> ports (ports below 1024), with the
Emulab blocks incoming connections to nodes on all of the <i>low numbered</i> ports
(ports below 1024), with the
exception of ports 20 and 21 (FTP), 22 (Secure Shell), and 80 (HTTP). This is
for the protection of experimentors, as well as to ensure that an errant
application cannot become the source of a Denial of Service attack to sites
for the protection of experimentors, as well help prevent an errant
application from becoming the source of a Denial of Service attack to sites
outside of Emulab. If your application requires external access to other low
numbered ports, please contact us to make special arrangements.
</p>
......
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