Enable port 512 in centos (linux)-Linux Enterprise Application-Linux server application information. For more information, see the following. The rexec service is enabled in centos (linux). It was very depressing when I first started searching. I only know that this service is used for remote login. remotely enter the username and password to perform some operations on the target machine.
For a long time, run yum search rsh-server to check whether the package has been installed. If not, enter yum install rsh-server
Here, the problem may be broken. (after the installation is complete, run the yum search rsh-server command. If the installation is not complete, run the yum install rsh-server command, the download may be interrupted due to server reasons .)
/Etc/service xinetd status view status
/Etc/service xinetd restart
Netstat-an | grep 512 check whether port 512 has been listened on
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