BOOT_COUNT 0, BOOTDATA 19
System restarted at 19:05:39 UTC Wed Oct 24 2007
System image file is "tftp://255.255.255.255/unknown"
Cisco 3640 (R4700) processor (revision 0xFF) with 124928K/6144K bytes of memory.
Processor board ID 00000000
R4700 CPU at 100MHz, Implementation 33, Rev 1.2
1 FastEthernet interface
4 Serial interfaces
DRAM configuration is 64 bits wide with parity enabled.
125K bytes of NVRAM.
8192K bytes of processor board System flash (Read/Write)
Configuration register is 0x2102
下面开始正式配置SSH
ssh(config)#hostname ssh
ssh(config)#ip domain-name eric.com
ssh(config)#aaa new-model
ssh(config)#username eric86 password eric86
ssh(config)#crypto key generate rsa modulus 2048
The name for the keys will be: ssh.eric.com
% The key modulus size is 2048 bits
% Generating 2048 bit RSA keys, keys will be non-exportable...[OK]
ssh(config)#line vty 0 15
ssh(config-line)#transport input ssh
ssh(config-line)#exit
*Oct 24 19:26:06.595: %SSH-5-ENABLED: SSH 1.99 has been enabled
出于安全方面的原因,在对企业的cisco网络产品应该启用SSH并禁用TELNET.因为telnet是以明文方式传递口令的,而ssh不以明文方式传递口令,并且可以与radius和racacs+的方法一起使用.这样一来就可以大大的增加cisco设备的安全性.问题虽简单,但细节决定一切.
责任编辑：虫虫
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