The TCP Wrappers daemon is tcpd.
TCPWrappers守护进程是tcpd。
Tcpd reads two files, hosts.allow and hosts.deny, based on the rules in these files.
Tcpd读取两个文件，hosts . allow和hosts .deny，读取时基于这两个文件中的规则。
If a match is found, then TCPD stops, depending on the rule, and access is either granted or denied.
如果找到匹配，那么tcpd会根据规则停下来，批准或拒绝访问。
If a match is found, then TCPD will deny access for that connection. Simply put, this means hosts.allow.
如果找到匹配，tcpd就拒绝此连接访问系统。
If a pattern match is found, the connection is let in, or more precisely, TCPD dies and lets the real serving daemon take over.
如果找到匹配的模式，就允许连接，或者更准确地说，tcpd死亡，让真正提供服务的守护进程接管。
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。
If the client is allowed access based on the allowed rules, then TCPD hands over control to the real daemon that was called (in this case, telnetd).
如果该客户端符合允许访问规则，那么tcpd就会交出对所调用的实际守护进程的控制权(本例中是telnetd)。
We simply replace the daemons that we wish to protect, in this case FTPD and telnetd with TCPD. So, after editing we would have the following configuration change.
我们只是替换想要保护的守护进程，本例中是用tcpd替换ftpd和telnetd。
We simply replace the daemons that we wish to protect, in this case FTPD and telnetd with TCPD. So, after editing we would have the following configuration change.
我们只是替换想要保护的守护进程，本例中是用tcpd替换ftpd和telnetd。
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