ServerTune KnowledgeTune / What ports do I need to open in my firewall?

The goal of this port table is to point to further resources for more information. Overall, you need the following Ports open:

Open Ports

PORT

STATE

SERVICE

1/tcp

open

tcpmux

21/tcp

open

FTP
Note: that ftp will use a "random high port number" if the client is in PORT mode, so you may need to add a port range into your /etc/proftpd.conf file to allow ftp connections, e.g.: PassivePorts 35000 35999.

22/tcp

open

SSH (Shell) access.

25/tcp

open

SMTP (Mail server)

26/tcp

open

unknown

43/tcp

open

whois, nickname

53/tcp

open

DNS (Named), so your Web sites resolve.

80/tcp

open

HTTP (Apache)

110/tcp

open

POP3 (Client POP email access)

111/tcp

open

Sun RPC Portmapper

113/tcp

open

identd/auth

143/tcp

open

IMAP (Clients IMAP email access)

443/tcp

open

HTTPS (Apache "secure")

465/tcp

open

SMTPS

587/tcp

open

unknown

631/tcp

open

Internet Printing Protocol (IPP)

783/tcp

open

hp-alarm-mgr

953/tcp

open

RNDC

993/tcp

open

IMAPS (Clients IMAP email access "secure")

995/tcp

open

POP3S (Client POP email access "secure")

2082, 2083/tcp

open

cPanel access

2086, 2087/tcp

open

WHM access

2222/tcp

open

DirectAdmin access

3306/tcp

open

MySQL (You don't need to open this port if you don't want to allow remote MySQL access, as most MySQL scripts are all accessed locally.)

8443/tcp

open

Plesk access

9999, 10000, 19638/tcp

open

Webmin access

1433 -1434/tcp

open

Microsoft SQL Server and Monitor

1521/tcp

open

Oracle SQL

This is a complete list of Linux Ports (To view this page, your browser must support in-line frames.)

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Open Ports

PORT

STATE

SERVICE

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