TCP guarantees that data is delivered in order (which is a good thing, considering TCP is a stream protocol).
TCP可以确保数据是按照次序发送的(考虑到TCP是一种流协议，这是一件好事)。
TCP further provides the port abstraction, which enables a host to open multiple TCP connections in parallel.
TCP进一步提供了端口抽取功能，这使得主机可以并行地打开多个 TCP连接。
If left uncapped, a continuous barrage of TCP connection requests and subsequent consumption of TCP resources by these network services will eventually use up all the available system resources.
如果不加限制的话，只要不断发出TCP连接请求，让这些网络服务消耗的TCP资源不断增加，最终会占用所有可用的系统资源。
A typical TCP client and server application issues a sequence of TCP system calls to attain certain functions.
典型的TCP客户机和服务器应用程序通过发布tcp系统调用序列来获取某些函数。
If the application is already running, a TCP client would be initialized and pass the URL arguments to the embedded TCP server waiting to receive such notification in the running RCP application.
如果应用程序已在运行，则TCP客户机将被初始化并把URL实参传递给在运行的RCP应用程序中等待收到此类通知的嵌入式TCP服务器。
As you know, TCP dynamically calculates timeout based on the round-trip time measured by TCP.
正如您所知道的，TCP根据所测量的往返时间，动态地计算超时。
Even though most services reserve both TCP and UDP ports, applications do not have to use both UDP and TCP.
尽管大部分服务同时保留tcp和udp端口，应用程序不必同时使用UDP和TCP。
For example, the operating system maintains the TCP send queue for each TCP connection.
例如，操作系统为每个TCP连接维护TCP发送队列。
To accomplish this, the attacker sends a TCP packet with the SYN flag set to the target host, just like when opening a regular TCP connection.
要实现这一点，攻击者向目标主机发送设置了SYN标志的tcp包，就象打开常规tCP连接时一样。
The problem that can occur with TCP is when a rogue client forges an IP packet with a bogus source address, then floods a server with TCP SYN packets.
当恶意客户机使用虚假的源地址来伪造一个IP报文时，TCP就会出现问题了，这会大量 TCPSYN报文攻击服务器。
TCP packet or segment: TCP is a reliable, connection oriented protocol.
tcp包或段：TCP是可靠的、面向连接的协议。
These are important fields in the TCP header, and the following section on TCP connection setup and shutdown will give you an even better understanding of what they are used for.
以上是TCP头中的重要字段，下面关于 TCP连接的建立和关闭的几节将使您更好地理解这些字段的用途。
The OS TCP layer fortunately takes care of splitting the protocol data into TCP segments that avoid IP fragmentation.
幸运的是，OStcp层可以负责将协议数据划分为避免IP分片的tcp报文段。
In particular this will be the layout of TCP packets (called segments), how TCP connections are set up between hosts, and how they are shut down.
尤其是tcp包(称为段)的结构、如何在主机之间建立TCP连接和如何关闭连接。
The stream coming from the TCP connection is the command's standard input, and the command's standard output is sent back through the TCP connection.
来自TCP连接的流是命令的标准输入，命令的标准输出通过TCP连接发送回去。
As discussed above, when Host a wants to establish a TCP connection to destination Host d, it sends a TCP segment with the SYN flag set first.
如上所述，当主机A想建立到目的地主机d的TCP连接时，它首先发送设置了SYN标志的tcp段。
with-tcp-wrappers -- This option is required if you want integration with the TCP wrapper security system.
with-tcp-wrappers——如果您希望与 TCP包装安全系统集成在一起，则此选项是必需的。
OpenSSH supports TCP wrappers when compiled with the with-tcp-wrappers option.
在带with -tcp -wrappers选项编译时，OpenSSH支持tcp包装器。
One new software tool I will introduce this time around is the TCP tunneling GUI, which allows you to see the TCP messages move between the client and server.
这次我要介绍的一个新的软件工具是TCPtunnelingGUI，它可以让您看到TCP消息如何在客户端和服务器间传送。
An example valid tcp connection string is tcp://remotehost:1883.
例如，一个有效的tcp连接字符串是 tcp://remotehost:1883。
Instead of using a custom client and TCP stack, I used the standard Linux TCP stack and the wget command-line HTTP client.
没有使用定制的客户机和tcp栈，而是使用了标准的Linux TCP协议栈和wget命令行http客户机。
Whereas NBT ran on TCP and User Datagram Protocol (UDP) ports 137-139, direct hosting USES TCP and UDP port 445.
尽管NBT在tcp和userDatagramProtocol (udp)端口137- 139上运行，直接托管使用TCP和UD p端口445。
TCP Wrappers is used to block or allow TCP-based applications that are started from inetd, like the Telnet or FTP services.
TCPWrappers用于阻止或允许从inetd启动的基于TCP的应用程序，比如telnet或FTP服务。
In the TCP port to listen on field, enter the TCP port that the service is listening on for access requests.
在TCPPorttolistenon字段中，输入服务为获得访问请求而侦听的TCP端口。
NetBIOS over TCP works, but there is overlap between the session and reliability features provided by NetBIOS and those provided by TCP.
NetBIOSoverTCP有效运作，但是NetBIOS与TCP提供的会话和可靠性功能之间有重叠。
The TCP TR utility configures or displays TCP TR policy information to control the maximum incoming socket connections for ports. The syntax of the utility follows
TCPTR实用程序可以配置或显示 TCP TR策略信息，控制端口的最大套接字连接数量。
To add a TCP Traffic Regulation Policy that covers only TCP port 23, and to set a maximum incoming connection pool of 256 with an available connections divisor of 3, enter the following command.
下面的命令添加一个TCPTrafficRegulation策略，它只控制TCP端口23，最大连接数量设置为256，可用连接除数设置为3。
TCP Wrappers (TCPD) reads two files to determine if the incoming TCP based connection should be allowed or disallowed. The two files are.
tcpWrappers (tcpd)通过读取两个文件决定应该允许还是拒绝到达的tcp连接。
To delete the TCP Traffic Regulation Policy that covers a TCP port that ranges from 5000 to 6000, enter the following command.
以下命令删除一个TCPTrafficRegulation策略，它控制从5000到6000的TCP端口。
To delete the TCP Traffic Regulation Policy that covers a TCP port that ranges from 5000 to 6000, enter the following command.
以下命令删除一个TCPTrafficRegulation策略，它控制从5000到6000的TCP端口。
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