Differences between telnet service configurations in different systems

We know that Unix and Linux systems are both open-source systems, but they are different in many aspects. As the system continues to improve, the two are also greatly different. So let's make a comparison for some special settings. Today, we will discuss the Ftp and telnet service configurations in Linux and Unix systems.

Having worked on Unix systems for many years, we have never had the chance to stick to Linux. Recently, due to work changes, we installed Linux on the virtual machine at some time and tried REDHAT 9 and REDFLAG 5, turboLinux 7, etc.

Although Linux is developed on the basis of Unix, there are many similarities, but there are still many details of differences in general.

First, ftp and telnet services are automatically enabled when Unix is installed by default, while Linux is significantly higher in security. by default, ftp and telnet services are disabled. to enable these two services, most Linux distributions require manual configuration.

For REDFLAG5 desktop edition, telnet and ftp services are not enabled by default.

In general, telnet and ftp are all placed in the xinetd service, which controls whether to start or not. You need to modify/etc/xinetd. d. find the disable = yes part and change it to disable = no.

Of course, to make the modification take effect, you must restart the xinetd service.

Command: service xinetd restart

Like windows, some ftp service software can add services in the system. For example, proftpd can separately install ftp into a service. After installation, you only need to restart proftpd.

Command: service proftpd restart

Telnet Service ps:

1. service Usage

Service -- status-all view the status of all services

Service name stop service

Service name start service

Service name restart service

2, if the xinetd service is not found, you need to install the xinetd rpm package to find the package can go to the http://rpmfind.net ).

3. By default, the root user does not allow telnet permanently. you can log on to another user and then su the past.