| Port |
Protocol |
Service
|
| 21 |
TCP |
File Transfer Protocol (FTP)
|
| 22 |
TCP |
Secure Shell (SSH)
|
| 23 |
TCP |
Telnet
|
| 25 |
TCP |
Simple Mail Transfer Protocol (SMTP)
|
| 53 |
TCP |
Domain Name Service Servers (DNS)
|
| 53 |
UDP |
Domain Name Service Servers (DNS)
|
| 80 |
TCP |
HTTP
|
| 88 |
TCP |
Kerberos
|
| 110 |
TCP |
Post Office Protocol (POP3)
|
| 139 |
TCP |
Network Basic Input/Output System (NetBIOS) session Service
|
| 143 |
TCP |
Internet Mail Access Protocol (IMAP)
|
| 144 |
TCP |
Secure HTTP (HTTPs)
|
| 443 |
TCP |
Secure HTTP (HTTPs)
|
| 10080 |
UDP |
Amanda Backup Client
|
| 9101 |
TCP |
Bacula
|
| 9102 |
TCP |
Bacula
|
| 9103 |
TCP |
Bacula
|
| 9102 |
TCP |
Bacula Client
|
| 993 |
TCP |
IMAP over SSL
|
| 500 |
UDP |
IPsec
|
| 5353 |
UDP |
Multicast DNS
|
| 2049 |
TCP |
NFS4
|
| 631 |
TCP |
Network Printing Service (Server)
|
| 631 |
UDP |
Network Printing Service (Server and Client)
|
| 1194 |
UDP |
Open VPN
|
| 995 |
TCP |
POP3 over SSL
|
| 1812 |
UDP |
Remote Authentication Dial In User Service (RADIUS)
|
| 1813 |
UDP |
Remote Authentication Dial In User Service (RADIUS)
|
| 11111 |
TCP |
Redhat Cluster Suite
|
| 21064 |
TCP |
Redhat Cluster Suite
|
| 5404 |
UDP |
Redhat Cluster Suite
|
| 5405 |
UDP |
Redhat Cluster Suite
|
| 139 |
TCP |
Samba
|
| 445 |
TCP |
Samba
|
| 137 |
UDP |
Samba
|
| 138 |
UDP |
Samba
|
| 137 |
UDP |
Samba Client
|
| 138 |
UDP |
Samba Client
|
| 69 |
TCP |
TFTP
|
| 69 |
TCP |
TFTP Client
|
| 16509 |
TCP |
Virtual Machine Management
|
| 16509 |
TLS |
Virtual Machine Management
|