Port
| range | for | notes |
|---|---|---|
| 0-1023 | System | by IANA |
| 1024-49151 | User | by IANA |
| 49152-65535 | Dynamic & Private | by IANA |
| 32768–60999 | Linux ip_local_port_range | |
| 32768–65535 | Solaris OS, AIX OS | |
| 1024–65535 | RFC 6056 | |
| 30000–32767 | Kubernetes NodePort |
如果自己需要定义固定端口，建议控制在 10000-30000 以内
sysctl net.ipv4.ip_local_port_range- 参考
# https://www.kernel.org/doc/html/latest//networking/ip-sysctl.html#ip-variables
cat /proc/sys/net/ipv4/ip_local_port_range
cat /proc/sys/net/ipv4/ip_local_reserved_ports
| plain | secure | protocol |
|---|---|---|
| 25 | 465 | SMTP |
| 53 | 853 | DNS over QUIC/TLS/DTLS |
| 80 | 443 | HTTP,HTTPS |
| 110 | 995 | POP3S,POP3S |
| 220 | 993 | IMAP,IMAPS |
| 389 | 636 | LDAP,LDAPS |
| 3478 | 5349 | TURN/STURN |
| 3306 | MySQL | |
| 5432 | PostgreSQL | |
| 6379 | Redis | |
| 8080 | 8443 | HTTP Alt |
| 27017 | Mongo |
- over TLS/SSL/DTLS/QUIC
- Cloudflare’s proxy Network ports
- Cloudflare Access 不支持自定义端口
- 前端请求也得用这些端口，而不能 80-> 8080
- HTTP
- 80
- 8080
- 8880
- 2052
- 2082
- 2086
- 2095
- HTTPS
- 443
- 2053
- 2083
- 2087
- 2096
- 8443
- Cache Disabled
- 2052
- 2053
- 2082
- 2083
- 2086
- 2087
- 2095
- 2096
- 8880
- 8443
Well-known ports
- Well-known 端口
- 端口号 < 1024
| Port | for |
|---|---|
| 9 | Discard Protocol Wake on LAN |
| 22 | SSH |
| 23 | Telnet |
| 25 | SMTP |
| 43 | WHOIS |
| 53 | DNS |
| 67/UDP | BOOTP Server |
| 68/UDP | BOOTP Client |
| 69/UDP | TFTP |
| 70 | Gopher |
| 80 | HTTP, QUIC |
| 88 | Kerberos |
| 123 | NTP |
| 137 | NetBIOS Name Service |
| 138 | NetBIOS Datagram Service |
| 139 | NetBIOS Session Service |
| 179 | BGP |
| 194 | IRC |
| 220 | IMAPv3 |
| 264 | BGMP |
| 389 | LDAP |
| 443 | HTTPS |
| 514 | syslog |
| 546 | DHCPv6 Client |
| 547 | DHCPv6 Server |
| 548 | AFP |
| 554 | RTSP |
| 873 | rsync |
Registered ports
官方注册端口，既定事实端口。
| Port | for |
|---|---|
| 1080 | SOCKS/HTTP Proxy |
| 3306 | MySQL |
| 5432 | PostgreSQL |
| 6379 | Redis |
| 32274 | FabricRPC |
| 5900 | RFB VNC |
| 3478 | STUN TURN STUN Behavior Discovery |
| 5349 | STUN over TLS/DTLS TURN over TLS/DTLS STUN Behavior Discovery over TLS |
| 6000-6063 | X11 Client/Server |
Application ports
非官方，但实际使用常见的端口
| Port | for |
|---|---|
| 2197 | APNS HTTP/2 JSON API |
| 3000 | Node.js Web |
| 6443 | Kubernetes API |
| 8080 | HTTL Alt |
| 4222 | NATS 客户端 |
| 8222 | NATS HTTP 管理和信息上报 |
| 6222 | NATS 集群路由 |
| 7422 | NATS Leaf Node |
| 21115-21117/TCP | RustDesk Server |
| 21116/UDP | RustDesk Server |
| 21119/TCP | RustDesk Server for Web Client |
| 21118/TCP | RustDesk Server for Web Client |