Telnet is an application protocol used on the Internet or local area network to provide a bidirectional interactive text-oriented communication facility using a virtual terminal connection.
Installation Telnet client on CentOS:
yum install -y telnet
Result:
[root@tutorialspots ~]# yum install -y telnet Loaded plugins: fastestmirror Loading mirror speeds from cached hostfile * base: mirror.alpix.eu * epel: mirror.de.leaseweb.net * extras: mirror.alpix.eu * rpmforge: mirror1.hs-esslingen.de * updates: linux.darkpenguin.net Resolving Dependencies --> Running transaction check ---> Package telnet.x86_64 1:0.17-65.el7_8 will be installed --> Finished Dependency Resolution Dependencies Resolved ================================================================================ Package Arch Version Repository Size ================================================================================ Installing: telnet x86_64 1:0.17-65.el7_8 updates 64 k Transaction Summary ================================================================================ Install 1 Package Total download size: 64 k Installed size: 113 k Downloading packages: telnet-0.17-65.el7_8.x86_64.rpm | 64 kB 00:00 Running transaction check Running transaction test Transaction test succeeded Running transaction Installing : 1:telnet-0.17-65.el7_8.x86_64 1/1 Verifying : 1:telnet-0.17-65.el7_8.x86_64 1/1 Installed: telnet.x86_64 1:0.17-65.el7_8 Complete!
Telnet usage
telnet [hostname/ipaddress] [port_number]
Example:
telnet 15.19.115.234 3306