Common Ports

Managing a network is not an easy responsibility for an IT pro. There’s a lot of aspect he should be looking at – security, performance, etc. That is why an IT pro should have knowledge on various ports being utilized of any applications and services on his network.

Port is somewhat a window for any application or service that needs to talk through a network. Through port you can block a lot of traffic such BitTorrent!

Knowledge on different ports gives IT pros an advantage on troubleshooting problems, firewall issues and many more. So to help out other IT pros out there, on this entry I listed the most commonly used ports.

common-ports

USAGE

PORTS

Web

HTTP:80, HTTP over SSL/HTTPS: 443

Mail

SMTP:25, POPv3:110, IMAPv4:143, SMTP over SSL:465, SMTP:587, POPv3 over SSL:995, IMAPv4 over SSL: 993

Networking

DNS:53, DHCP/BOOTP:67-68, NTP:132, NetBIOS:137-139, LDAP:389, Kerberos:464, DHCPv6:546-547, RADIUS:1812-1813, LDAP over SSL:636, SNMP:161

Database

Oracle DB:2483-2484, MS SQL:1433-1434, MySQL:4333

Remote

VNC Server:5500,5900+, RDP:3389, TeamViewer:5938

VPN

PPTP:1723, L2TP:1701, OpenVPN:1194

Chat

Yahoo Messenger:5050, XMPP/Jabber:5222-5223, Skype:80 and 443

Access

FTP:20-21, FTP over SSL:989-990, NFS:2049, SMB/CIFS:445, SSH/SCP:22

VoIP

SIP:5060

Peer-to-Peer (P2P)

BitTorrent:6881-69991

 

You may also check my other WordPress entries regarding Information Technology!

Follow me on Twitter.com @akjosijesyang

Advertisements

One thought on “Common Ports

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s