10 2016 档案

SNMP Introduction
摘要：Basic command of SNMP: GET: The GET operation is a request sent by the manager to the managed device. It is performed to retrieve one or more values f 阅读全文
posted @ 2016-10-27 13:24 rong-shao 阅读(466) 评论(0) 推荐(0)
What is CRC and how does it works?
摘要：What is CRC and how does it works? CRC errors refer to Layer 1 or 2 issues.Two things you should check :1. Both the ends of the interfaces have some speed and duplex settings.2. Check the physical cab... 阅读全文
posted @ 2016-10-26 13:18 rong-shao 阅读(205) 评论(0) 推荐(0)
Iptables
摘要：There are three different chains : input , forward and output. Input: This chain is used to control the behavior for incoming connections. Forward: This chain is used for incoming connections that ar... 阅读全文
posted @ 2016-10-26 12:52 rong-shao 阅读(195) 评论(0) 推荐(0)