Common Firewall Ports privileged
Common Firewall Ports
Privileged Ports
requiring ROOT level permission
| Port | TCP or UDP | Service Offered |
|---|---|---|
| 20-21 | tcp | FTP |
| 22 | tcp | SSH |
| 23 | both | Telnet |
| 25 | tcp | SMTP |
| 43 | tcp | WHOIS |
| 53 | both | DNS |
| 67-68 | udp | DHCP and BOOTP |
| 69 | udp | TFTP |
| 79 | tcp | Finger |
| 80 | tcp | HTTP |
| 82 | tcp | XFer |
| 88 | tcp | KERBEROS |
| 110 | tcp | POP3 |
| 111 | both | SunRPC |
| 113 | tcp | Ident |
| 119 | tcp | NNTP |
| 123 | udp | NTP |
| 135 | both | MS RPC |
| 137-139 | both | MS NetBIOS |
| 143 | tcp | IMAP4 |
| 161-162 | udp | SNMP |
| 177 | udp | XDMCP |
| 179 | tcp | BGP |
| 201 | tcp | Appletask |
| 264 | tcp | BGMP |
| 389 | both | LDAP |
| 443 | tcp | HTTPS |
| 444 | udp | SNPP |
| 445 | tcp | MS SMB |
| 464 | tcp | KERBEROS |
| 497 | tcp | Retrospect |
| 500 | udp | ISAKMP |
| 512 | tcp | RIPng |
| 513 | tcp | Rlogin |
| 514 | udp | SYSlog |
| 515 | both | LPD printer |
| 520 | udp | RIP |
| 554 | tcp | RTSP |
| 546-547 | both | DHCP vers6 |
| 587 | tcp | SMTP Submission |
| 593 | udp | HTTP-RPC endpoint |
| 631 | udp | Internet printing |
| 636 | tcp | LDAP via SSL |
| 646 | tcp | LDP |
| 873 | tcp | RSYNC server |
| 989-990 | both | FTP via SSL |
| 993 | tcp | IMAP via SSL |
| 995 | tcp | POP via SSL |