auto secure命令的使用
更新時間:2007年09月19日 10:23:20 作者:
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在路由器試用了一個命令:auto secure,這個命令用起來比較方便,而且可以關(guān)閉一些不安全的服務(wù)和啟用一些安全的服務(wù)。然后對這個命令做了一個總結(jié)。(注:好像ios版本為:12.3(1)以上才支持使用)
總結(jié)如下:
1、關(guān)閉一些全局的不安全服務(wù)如下:
Finger
PAD
Small Servers
Bootp
HTTP service
Identification Service
CDP
NTP
Source Routing
2、開啟一些全局的安全服務(wù)如下:
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
3、關(guān)閉接口的一些不安全服務(wù)如下:
ICMP
Proxy-Arp
Directed Broadcast
Disables MOP service
Disables icmp unreachables
Disables icmp mask reply messages.
4、提供日志安全如下:
Enables sequence numbers & timestamp
Provides a console log
Sets log buffered size
Provides an interactive dialogue to configure the logging server ip address.
5、保護(hù)訪問路由器如下:
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
6、保護(hù)轉(zhuǎn)發(fā)Forwarding Plane
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,
Enables NetFlow on software forwarding platforms 文章錄入:csh 責(zé)任編輯:csh
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