To use a server effectively, it&#8217;s important to know the relevant network ports.  These ports allow communication between different services and applications.  Below is a list of common ports often used on Linux and Windows servers. <br />
Program<br />
Protocols &amp; Port(s)<br />
Minecraft Server<br />
TCP 25565<br />
Teamspeak<br />
UDP 9987TCP 30033<br />
Web Server<br />
TCP 80, 443<br />
CS2 Server<br />
TCP 27015-27030, 27036-27037UDP 4380, 27000-27031, 27036<br />
RDP<br />
TCP 3389<br />
SQL Server<br />
TCP 1433, 1434<br />
FTP<br />
TCP 21, 20<br />
SMTP<br />
TCP 25<br />
IMAP<br />
TCP 143<br />
POP3<br />
TCP 110<br />
LDAP<br />
TCP 389<br />
DNS<br />
UDP 53TCP 53<br />
DHCP<br />
UDP 67, 68<br />
NTP<br />
UDP 123