ccna tutorial pdf for beginners

ccna tutorial pdf for beginners.Router(config)# linevty 015 Router(config-line)# transportinputssh Router(config-line)# transportoutputsshChapter 16 discusses Telnet and SSH configuration in more detail.Exam Points Be sure to familiarize yourself with how to restrict VTY access methods.3. CLI OutputOne of the features of IOS devices is that they display informational-type messages on the console line by default when certain types of events occur (such as an interface being enabled or disabled, an administrator modifying the configuration, or executing a command debug). However, they will not display these messages if you log into the IOS device via Telnet or SSH, or if you access the device via a secondary or TTY line.In the second case, you can execute the privileged EXEC command terminalmonitor to have IOS display these messages on the screen, as follows.IOS# terminalmonitorYou must execute this command after logging into an IOS device from a VTY, TTY, or secondary line. However, after you log out, this command is no longer valid for other users logged into the IOS device over the same line; in other words, you must execute this command again for each line session.One annoying problem with displaying informational messages on the CLI screen is that if you are typing an IOS command when the device displays the message, the message will be displayed from where the cursor is, making it difficult to determine where you typed. If you remember where you typed it, just keep typing the command; if not, press CTRL-C to abort the command. A better approach, however, is to configure the IOS to redisplay what you have typed at a new CLI prompt after the message is displayed in the window. To do this, use the command logging synchronousoIOS(config)# line line_type line_# IOS(config-line)# logging synchronous