These ports may be listening on a typical webserver…
PROT PORT# Usage
----- -------- --------
tcp 993 imaps - Encrypted IMAP mail
tcp 995 pop3 - Encrypted POP3 mail
tcp 3306 mysql - MySQL database
tcp 110 pop3 - POP3 mail
tcp 143 imap - IMAP mail
tcp 80 http - HTTP traffic
tcp 19638 ensim - Ensim server management
tcp 19635 ensim - Ensim server management ( Customer Billing Manager )
tcp 21 - ftp - FTP file transfer
tcp 53 - dns - Domain naming service
tcp 22 - ssh - Secure remote shell
tcp 25 - smtp - SMTP mail
tcp 953 - dns - DNS control interface
tcp 443 - https - Secure HTTP traffic
