Comparison between LINUX and UNIX: configuration of ftp and telnet services

Comparison between LINUX and UNIX: ftp and telnet service configuration-Linux Enterprise Application-Linux server application information. For details, refer to the following section. 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.

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

Generally, telnet and ftp are stored in the xinetd service, which controls whether to start. You need to modify the name file for telnet ftp in/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

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 you cannot find the xinetd service, you need to install the xinetd rpm package (find the package can go to the http://rpmfind.net ).

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