MAC Address-Table Move Update The MAC address-table move update feature allows the switch to provide rapid bidirectional convergence when a primary (forwarding) link goes down and the standby link begins forwarding traffic. Figure 1. MAC Address-Tabl…
MAC ADDRESS Media Access Control Permanent Physical Unique Assigned by manufacturer WHY CHANGE THE MAC ADDRESS 1.Increase anonymity 2.Impersonate other devices 3.Bypass filters Change the MAC Address manually. ifconfig ifconfig eth0 down ifconfig eth…
mysql中You can't specify target table for update in FROM clause错误的意思是说,不能先select出同一表中的某些值,再update这个表(在同一语句中) 例如 delete from table名称 where idStr in ( ) ); 就会报上面的错误 改 delete from table名称 where idStr in ( ) c from table名称 h group by h.otherKey ) s ); 通过中…
ifconfig // check Mac address sudo ifconfig eth0 down sudo ifconfig eth0 hw ether xx:xx:xx:xx:xx:xx sudo ifconfig eth0 up ifconfig // check Mac address where is active 這方法重開機之後,會恢復原來的 Mac address…
今天在搭建rac配置IP的时候报错显示如下: Device eth2 has different MAC address than expected, ignoring.[FAILED] 百度了下,问题解决. 问题原因: 配置文件里的MAC地址和真实的MAC不一样. 含有MAC信息的配置文件是/etc/sysconfig/network-scripts/ifcfg-eth2. 查看本机实际MAC的命令是 ifconfig eth2 解决办法: 查看配置文件/etc/sysconfig/netwo…
mysql中You can't specify target table for update in FROM clause错误的意思是说,不能先select出同一表中的某些值,再update这个表(在同一语句中). 例如下面这个sql: delete from tbl where id in ( select max(id) from tbl a where EXISTS ( ) ) group by tac ) 改写成下面就行了: delete from tbl where id in (…
Windows Method 1: Using the Command Prompt 1 Click on the Start button. 2 Type cmd in the search bar, right above the Start button, and press Enter. This will open the command prompt. If you're using Windows XP, click Run, type cmd, and press Enter…