CISCO加密密码破解

作者:tKC 发布时间:August 25, 2011 分类:IT技术,网络设备

CISCO设备默认密码是明文显示,存在于配置文件中

但出于安全考虑,可以将密码设置为暗文显示

增加如下配置

service password-encryption

此后,密码相关的配置会按如下显示

enable password 7 095C4F1A0A1218000FBR>username user password 7 12090404011C03162EP>

若知道配置文件,可以通过下面的网页工具解密

http://www.ifm.net.nz/cookbooks/passwordcracker.html

enable密码还可设置更强的加密方式enable secret

加密后配置如下

enable secret 5 $1$47oS$DRR/H.SQrYBoMeKf1SqqP.

此加密方式目前暂无破解方式

SNMP常用OID

作者:tKC 发布时间:August 25, 2011 分类:IT技术,监控报警,网络设备

Linux SNMP OID’s for CPU,Memory and Disk Statistics

SNMP stands for Simple Network Management Protocol and consists of three key components: managed devices, agents, and network-management systems (NMSs). A managed device is a node that has an SNMP agent and resides on a managed network. These devices can be routers and access server, switches and bridges, hubs, computer hosts, or printers. An agent is a software module residing within a device. This agent translates information into a compatible format with SNMP. An NMS runs monitoring applications. They provide the bulk of processing and memory resources required for network management.

SNMP MIBs, OIDs Overview

MIB stands for Management Information Base and is a collection of information organized hierarchically. These are accessed using a protocol such as SNMP. There are two types of MIBs: scalar and tabular. Scalar objects define a single object instance whereas tabular objects define multiple related object instances grouped in MIB tables.

MIB files for specific devices or systems can be downloaded from here

OIDs or Object Identifiers uniquely identify manged objects in a MIB hierarchy. This can be depicted as a tree, the levels of which are assigned by different organizations. Top level MIB object IDs (OIDs) belong to different standard organizations. Vendors define private branches including managed objects for their own products.

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