How I see port number in Linux System?
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Posted on - 08/28/2012
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I always forget the port number of FTP or SSH server, is there any command that I can see the port number anytime?
How I see port number in Linux System?
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Hi Williams,
You don’t need to remember all the port numbers in Linux. You just need to know about one file that contains all the port numbers in Linux.
# less /etc/services
This file shows you all the port numbers, which is used in the Linux system
The most important ports are listed below..
NAMEÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â UDPÂ Â Â Â Â Â Â Â Â Â Â TCP
FTPÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 20Â Â Â Â Â Â Â Â Â Â Â Â Â Â 21
TELNETÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 23Â Â Â Â Â Â Â Â Â Â Â Â 23
SMTPÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 25Â Â Â Â Â Â Â Â Â Â Â Â 25
http                        80        80
POP3Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 110Â Â Â Â Â Â Â Â Â Â Â Â 110
IMAPÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 143Â Â Â Â Â Â Â Â Â Â Â 143
IMAP3Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 220Â Â Â Â Â Â Â Â Â Â Â 220
HTTPSÂ Â Â Â Â Â Â Â Â 443Â Â Â Â Â Â Â Â Â Â Â 443
SMTPSÂ Â Â Â Â Â Â Â Â 465 Â Â Â Â Â Â 465
DHCP client     546       546
DHCP server     547            547
POP3SÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 995 Â Â Â Â Â Â 995
NFSÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 2049 Â Â Â Â Â 4049
PROXYÂ Â Â Â Â Â Â Â Â Â Â Â Â Â 8081 Â Â Â Â Â 8081
Britnu Salu
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