Auto check share memory utilization for IOX by Python

Introduction

In some scenario, we need to monitor some data in router/switch by automation. This article will show example that how to check share memory utilization. And you can easy to change the script base on your requirement/scenario.

Prepare

Due to “telnetlib” couldn’t exactly check expect messages by read_until() function (that couldn’t control exactly time when the info return to buffer), so I change to “expect”. And follow Bo’s example Python Expect Demo, and there is a good documents for expect demo from IBM too: 探索 Pexpect,第 2 部分:Pexpect 的实例分析
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Linux操作系统虚拟机(ESXi、VMware Workstation等)MAC地址变化后网卡无法启动-转

原始文章:
http://iknow.lenovo.com/detail/dc_148601.html

虚拟机MAC改变后,无法启动,并报错:“Device eth0 does not seem to be present”
出现该问题,是由于MAC地址变更后,操作系统仍然保留原来MAC地址作为eth0,并且将新的MAC地址识别为新的网卡导致的,可以删除文件“/etc/udev/rules.d/70-persistent-net.rule”中老MAC的信息,并把新MAC中的eth1改成eth0,通过start_udev重新加载udev,然后重启网卡恢复:“service network restart”

Deploy Samba on OpenWRT

买了linksys wrt1200ac很久了,之前只是装了一个openwrt+默认配置,也没启用什么特别功能,感觉还算稳定。不过现在想听一些下载下来的广播,但又不想总是开着PC,所以突然想把这些音频挪到没用的u盘里,并挂在openwrt中,这样任何设备都可以访问了,还剩资源:)

定制OpenWRT

1. 安装中文包

root@OpenWrt:~# opkg update <<< 每次重启后需要缓存安装包列表,这样才能search到所有可用的包
root@OpenWrt:~# opkg list |grep zh-cn <<< 学会如何查找相应的包
root@OpenWrt:~# opkg install luci-i18n-base-zh-cn <<< 安装中文包

2.安装luci的主题

默认只有一种,在默认更新源里,加上默认的一共有4个,最后我还是选择了默认的 -_-

root@OpenWrt:~# opkg list |grep -i theme
luci - git-16.018.33482-3201903-1 - Standard OpenWrt set including full admin with ppp support and the default Bootstrap theme
luci-theme-bootstrap - git-16.018.33482-3201903-1 - Bootstrap Theme (default)
luci-theme-freifunk-bno - git-16.018.33482-3201903-1 - Freifunk Berlin Nordost Theme
luci-theme-freifunk-generic - git-16.018.33482-3201903-1 - Freifunk Generic Theme
luci-theme-openwrt - git-16.018.33482-3201903-1 - LuCI OpenWrt.org theme
 完整阅读

Excel 小技巧

在处理工作时,常常遇到统计log,但如何高效的统计,常常需要度娘,而且查起来也很麻烦,所以统计到blog里,下次可以统一查阅:

Excel中两列数据,找出重复项

参考文章请查看:https://zhidao.baidu.com/question/546059662.html
分别对两行建立条件公式,选中A列,条件“=COUNTIF(B:B,A1)>0”;选中B列,条件“=COUNTIF(A:A,B1)>0”,如下所示:

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