Port 80 TCP UDP HTTP - Hypertext Transfer ProtocolOfficial Un-Encrypted App Risk 4 Packet Captures Edit / Improve This Page! Hypertext Transfer Protocol (HTTP) - Used by client networked computers to get content from web servers, typically on the internet....
Port 53: Domain Name System (DNS). DNS is an essential process for the modern Internet; it matches human-readable domain names to machine-readable IP addresses, enabling users to load websites and applications without memorizing a long list of IP addresses. Port 80: Hypertext Transfer Protocol...
Execute the following command to allow traffic on Port 443: sudo firewall-cmd --add-port=443/tcp --permanent Copy Allow Port 8443: Similarly, enable traffic on Port 8443 with the command: sudo firewall-cmd --add-port=8443/tcp --permanent Copy Reload Firewall: Reload the firewall to...
53 TCP DNS Internet Connection Firewall /Internet Connection Sharing80 TCP HTTP Windows Media Service80 TCP HTTP Web Distribution Service80 TCP HTTP SharePoint Portal Server88 TCP Kerberos Kerberos Key Distribution Center102 TCP X.400 Microsoft Exchange MTA Stack110 TCP POP3 Microsoft POP3 Service110...
Port numbers. Each port is assigned a unique number, ranging from 0 to 65535, which identifies the type of service or application. For example, HTTP typically uses port 80, while HTTPS uses port 443. TCP and UDP protocols.Ports operate using either the transmission control protocol (TCP) or...
HTTP is an application-level protocol that typically runs on port 80. It uses Transmission Control Protocol (TCP) as an underlying transport protocol. TCP is a connection-oriented protocol: It starts a connection after confirmation from both ends that they are available and open to a data exchan...
DNS 服务器间的区域传输(Zone Transfer)使用 **TCP 53** 端口,原因如下: 1. **可靠性需求**:区域传输需要传输完整的 DNS 数据库文件(如区域文件),数据量大且需要可靠的连接。TCP 提供可靠传输机制(如重传、校验),而 UDP 无此保障。 2. **协议规范**:DNS 标准(RFC 5936)明确要求区域传输必须通过 TCP ...
In contrast, a port that rejects connections or ignores all packets is a closed port. Ports are an integral part of the Internet's communication model. All communication over the Internet is exchanged via ports. Every IP address contains two kinds of ports, UDP and TCP ports, and there are...
In older WSUS implementations, TCP80 was used by default, but you could specify a custom port e.g. 8530, in this case, some virtual web sites would remain on port 80. In newer WSUS implementations, 8530 is now the default, and, is generally recommended for WSUS and it should not be ...
Port 548 Apple Filing Protocol AFP (Apple Filing Protocol) is Apple's proprietary file services protocol primarily used on macOS systems. Operating over TCP port 548, it facilitates secure and efficient sharing, browsing, and file management within a Macintosh network environment. AFP supports advance...