查看完整版本: 小命令大作用:增加Router的安全

huixinkeji 2008-7-21 15:32

小命令大作用:增加Router的安全

[align=center]小命令大作用:增加Router的安全[/align]
在Router里有这样一条命令:auto secure,这个命令用起来比较方便,而且可以关闭一些不安全的服务和启用一些安全的服务。然后对这个命令做了一个总结。(注:ios版本为:12.3(1)以上才支持使用)

  总结如下:

[b]1、关闭一些全局的不安全服务如下:[/b]
  Finger  
  PAD  
  Small Servers  
  Bootp  
  HTTP service  
  Identification Service  
  CDP  
  NTP  
  Source Routing  

[b]  2、开启一些全局的安全服务如下: [/b] 

  Password-encryption service  
  Tuning of scheduler interval/allocation  
  TCP synwait-time  
  TCP-keepalives-in and tcp-kepalives-out  
  SPD configuration  
  No ip unreachables for null 0 

 [b] 3、关闭接口的一些不安全服务如下: [/b]
 
  ICMP  
  Proxy-Arp  
  Directed Broadcast  
  Disables MOP service  
  Disables icmp unreachables  
  Disables icmp mask reply messages.
  
 [b] 4、提供日志安全如下:[/b]  

  Enables sequence numbers ×tamp  
  Provides a console log  
  Sets log buffered size  
  Provides an interactive dialogue to configure the logging server ip address. 
 
[b]  5、保护访问路由器如下: [/b] 

  Checks for a banner and provides facility to add text to automatically configure:  
  Login and password  
  Transport input &output  
  Exec-timeout  
  Local AAA  
  SSH timeout and ssh authentication-retries to minimum number  
  Enable only SSH and SCP for access and file transfer to/from the router

  [b]6、保护转发Forwarding Plane [/b]
 
  Enables Cisco Express Forwarding (CEF) or distributed CEF on the router, when available
  Anti-spoofing  
  Blocks all IANA reserved IP address blocks  
  Blocks private address blocks if customer desires  
  Installs a default route to NULL 0, if a default route is not being used  
  Configures TCP intercept for connection-timeout, if TCP intercept feature is available and the user is interested
  Starts interactive configuration for CBAC on interfaces facing the Internet, when using a Cisco IOS Firewall image,

tu_ring 2008-8-1 14:26

天书,看不懂,不过帮顶下

水仙100 2008-8-2 20:49

学习了.

xiaosa5053 2008-9-11 11:20

有些东西可不能乱关,建议不懂的别乱关~~!

pengwf1982 2008-9-12 11:59

学习了~~~~~

happy-idiot 2008-10-3 21:24

还不懂!!!还需要学习!!!!

lamlp 2008-10-7 15:57

楼主太强了!!!!!!!!
学习中

104911 2008-10-11 11:44

看不懂也不瞭解這要怎樣做~
不過還是值得學習~

ZWEI2 2008-10-12 08:10

很好啊!!!

kikakikaka 2008-10-12 08:25

怎么进入不了。。

zhaow139 2008-10-12 19:49

不错,学习了。谢谢楼主
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