Zte ZXR10 8900 Series - Configuring SSH Connection; Figure 7 Telnet Connection Limit Configuration Example

Chapter2UsageandOperation
FIGURE7TELNETCONNECTIONLIMITCONFIGURATIONEXAMPLE
CongurationofSwitch:
ZXR10(config)#linetelnetmax-link2
ConfiguringSSHConnection
TelnetandFTPconnectionsarenotsafebecausetheyusetheplain
texttotransmitthepasswordanddataonthenetwork.Thisre-
sultsindatatobeeasilyinterceptedbyhackers.Adisadvantageof
theT elnet/FTPsecurityauthenticationisthatitiseasilyattacked
bytheman-in-the-middle.Thisimitatestheservertoreceivethe
datatransmittedbytheclientterminalandthenimitatestheclient
terminaltotransmitdatatotherealserver .
SSH(SecureShell)cansolvetheproblem.SSHestablishesase-
curechannelforremoteloginandothernetworkservicesinthe
insecurenetwork.Itencryptsandcompressesthetransmitted
datathatpreventspeoplefromgettingsecretinformation.
TwoincompatibleversionsofSSHprotocolsareavailable:
�SSHv1.x
�SSHv2.x
ZXR108900seriesswitchsupportsSSHv2.0.Itprovidessecure
remoteloginfunction.
SSHfallsintotwopartsincludingserverandclientterminal.
ZXR108900seriesswitchservesastheserverofSSH.Hostlogs
intotheswitchbyrunningSSHclientterminal.
TocongureSSHconnection,performthefollowingsteps.
1.UsethefollowingcommandstoenableSSHserverfunctionof
ZXR108900seriesswitch.
CommandFunction
ZXR10(config)#sshserverenable
ThisenablesSSHserverfunction
CondentialandProprietaryInformationofZTECORPORATION9