ccna 200 301 prep

ccna 200 301 prep.noAuthNoPr i noauth username NoneauthNoPriv auth Message Digest 5 (MD5) or Secure Hash Algorithm (SHA) NoneauthPriv priv Message digest 5 (MD5) or Secure Hash Algorithm (SHA) DES or DES-56Tip: Even with the noAuthNoPriv level, it is an improvement over SNMP version 2c because activity can be traced to a particular user's account.19.2.2 System Message Logging (Syslog)Cisco devices always do their best to be helpful to administrators, which is surprising. When major (and not-so-major) events occur, these Cisco devices try to notify administrators via detailed system messages. As you learned in that section, these messages are varied and range from the mundane to the extremely important. Fortunately, administrators have many different options for storing these messages and are even alerted for those messages that have a significant impact on the network infrastructure.13.2 Basic Content 397Overview of System Message LoggingThe most common way to take advantage of the valuable system messages provided by Cisco devices is to use a protocol called Syslog. Syslog allows various Cisco devices (and some non-Cisco devices) to send system messages to the Syslog server, over the network. Note that you can even build a special out-of-band (OOB) network for this purpose. Many of these are also free software.Internally. the Cisco networking device sends system messages and debug output to a local logging process in the device. You can then command (using configuration) how this logging process handles these messages. For example, you might send them over the network to the Syslog server, as previously described. Or you might want to send them to an internal buffer so that you can easily view them later, via the device CLI. You can also define that only certain types of system messages can be sent to different destinations. For example, you may not want debug-level messages to be sent to an external Syslog server, since you intend to view them frequently in the CLI.