TCP: syn ack fin rst psh urg details
========================================================== ==================================
TCP three-way handshakeHow is it done: the sender sends a SYN = 1, ACK = 0 packet to the receiver, and the request is
How the three handshake of TCP is carried out: the sending side sends a SYN=1,ACK=0 flag packet to the receiving end, the request connects, this is the first handshake, the receiver receives the request and allows the connection, it sends a
TCP three-way handshakeHow is it done: the sender sends a SYN = 1, ACK = 0 packet to the receiver, and the request is connected. This is the first handshake. If the receiver receives the request and allows the connection, A packet with SYN = 1, ACK =
1) how to view the port opened on the local machine:
Run the netstat-An command to view details! Next, stat has some English letters. Let me briefly explain what these English letters represent ~
Listen: listens for connection requests from remote
Ping is a simple tool to test network connectivity, useful for the general user, but Ping has a disadvantage is that it can not specify the port, and if the source address ban Ping, the ping command on the same name. --Preface
tcping command is for
ping command and network port:1.Ping 127.0.0.1127.0.0.1 is the local circular address, ping General instructions that the TCP/IP protocol works properly, otherwise TCP/IP is not normal.2.Ping IP address for this computerUse the ipconfig command to
Socket is a set of interfaces built on the TCP/IP protocol is not a protocolApplication layer: HTTP FTP SMTP WebTransport layer: Provides logical, not physical, communication between two applications (TCP UDP)TCP reliable connection-oriented
A denial of service attack is an attacker trying to get the target machine to stop providing service or resource access. These resources include disk space, memory, processes, and even network bandwidth, preventing access for normal users. In fact,
Release date:Updated on:
Affected Systems:Freecode Ping Tunnel 0.72Description:--------------------------------------------------------------------------------Bugtraq id: 54627
Ping Tunnel is a reliable TCP Connection Tool for Tunnel effect. It
From http://nmap.orgHost discovery
Host discovery is also called Ping scanning, but it is far more than sending simple ICMP echo request packets using a widely known ping tool. You can use list scan (-sL) Or by disabling Ping (-P0) Skip the ping
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.