Routing and switching - off dynamic domain name resolution, turn off the console session timeout, turn off logging synchronous

Router>enable
Router#config t
Enter configuration commands, one per line.  End with CNTL/Z.
Router(config)#no ip domain lookup             //关闭动态的域名解析
Router(config)#line Console 0                        
Router(config-line)#exec-timeout 0 0            //关闭控制台的会话超时，以保证不会被踢出去
Router(config-line)#logging synchronous    //关闭日志同步，阻止控制台的一些提示信息
Router(config-line)#exit
Router(config)#

The above function can not be turned off, but this may affect the speed of the device, therefore, the proposed closure