Some owners will enable firewalls or block ports.
The following are used by cPanel and should not be blocked:
|
Port |
Service |
Protocol |
Direction |
|
20 |
ftp |
tcp |
inbound/outbound |
|
21 |
ftp |
tcp,udp |
inbound/outbound |
|
22 |
ssh |
tcp |
inbound |
|
25 |
smtp |
tcp |
inbound/outbound |
|
26 |
smtp |
tcp |
inbound/outbound |
|
37 |
rdate |
tcp |
outbound |
|
43 |
whos |
tcp |
outbound |
|
53 |
DNS |
tcp/udp |
inbound/outbound |
|
80 |
http |
tcp |
inbound/outbound |
|
110 |
pop3 |
tcp |
inbound |
|
113 |
ident |
tcp |
outbound |
|
143 |
imap4 |
tcp |
inbound |
|
443 |
https |
tcp |
inbound |
|
465 |
smtp |
tcp/ssl, tcp/udp |
inbound/outbound |
|
873 |
rsync |
tpc/udp |
outbound |
|
993 |
imap4 |
ssl tcp |
inbound |
|
995 |
pop3 |
ssl tcp |
inbound |
|
2082 |
cpanel |
tcp |
inbound |
|
2083 |
cpanel |
ssl tcp |
inbound |
|
2086 |
whm |
tcp |
inbound |
|
2087 |
whm ssl |
tcp |
inbound |
|
2089 |
cp license |
tcp |
outbound |
|
2095 |
webmail |
tcp |
inbound |
|
2096 |
webmail |
ssl tcp |
inbound |
|
3306 |
mysql |
tcp |
inbound |
|
6666 |
chat |
tcp |
inbound |
