Cactus Thinking

windows 升级遇到 0x80092004 错误

windows 升级遇到 0x80092004 错误时候需要单独下载两个更新文件，并手动更新

https://support.microsoft.com/en-sg/help/4490628/servicing-stack-update-for-windows-7-sp1-and-windows-server-2008-r2

https://support.microsoft.com/en-us/help/4474419/sha-2-code-signing-support-update

Could not resolve host:mirrors.cloud.aliyuncs.com

通过yum 在阿里云的Centos ECS中安装或更新软件的时候有时会遇到

http://mirrors.cloud.aliyuncs.com/centos/7/os/x86_64/repodata/repomd.xml: [Errno 14] curl#6 – “Could not resolve host: mirrors.cloud.aliyuncs.com; Unknown error”

需要编辑/etc/yum.repo.d/下面的配置文件，删除 mirrors.cloud.aliyuncs.com或替换为mirrors.aliyun.com

yum clean all

yum make cache

换个域名新的开始

换个域名，新的开始。

怎么保存ipython历史到文件

在ipython里面执行

%history -g -f filename

1	%history -g -f filename

在macOS上安装配置selenium-python

1. 用homebrew安装较新版本的python2.7

brew install python

sudo -H easy_install pip

brew install python

sudo -H easy_install pip

2. 安装selenium

sudo -H pip install selenium

1	sudo -H pip install selenium

3. 安装selenium webdriver

Firefox:
到https://github.com/mozilla/geckodriver/releases下载macOS版本的driver解压出来，复制到/usr/local/bin

sudo cp ~/Download/geckodriver /usr/local/bin

1	sudo cp ~/Download/geckodriver /usr/local/bin

Chrome

到https://chromedriver.storage.googleapis.com/index.html下载chromedriver，和firefox版一样复制到/usr/local/bin

sudo cp ~/Download/chromedriver /usr/local/bin

1	sudo cp ~/Download/chromedriver /usr/local/bin

4. 检查安装

在python console

from selenium import webdriver
browser = webdriver.Firefox()
browser.get('https://www.baidu.com')

from selenium import webdriver

browser = webdriver.Firefox()

browser.get('https://www.baidu.com')

能够成功打开浏览器，并打开网页，说明安装成功。

note: 必须要保证系统里面安装了Firefox或者Chrome浏览器
不然可能会有如下的异常：

selenium.common.exceptions.WebDriverException: Message: Expected browser binary location,
but unable to find binary in default location, no 'moz:firefoxOptions.binary' capability provided, and no binary flag set on the command line

1 2	selenium.common.exceptions.WebDriverException: Message: Expected browser binary location, but unable to find binary in default location, no 'moz:firefoxOptions.binary' capability provided, and no binary flag set on the command line

升级阿里云centos kernel修复CVE-2016-5195(Dirty COW)

检查是否受影响：

wget https://access.redhat.com/sites/default/files/rh-cve-2016-5195_1.sh
bash ~/rh-cve-2016-5195_1.sh
Your kernel is 2.6.32-358.6.2.el6.x86_64 which IS vulnerable.

wget https://access.redhat.com/sites/default/files/rh-cve-2016-5195_1.sh

bash ~/rh-cve-2016-5195_1.sh

Your kernel is 2.6.32-358.6.2.el6.x86_64 which IS vulnerable.

修改 /etc/yum.conf，删除掉exclude的kernel部分

Shell

#exclude=*.i?86 <del>kernel</del> kernel-xen kernel-debug exclude=*.i?86 kernel-xen kernel-debug

1
2

#exclude=*.i?86 <del>kernel</del> kernel-xen kernel-debug
exclude=*.i?86 kernel-xen kernel-debug

执行升级

yum update kernel
Loaded plugins: fastestmirror
Setting up Update Process
Loading mirror speeds from cached hostfile
 * base: mirrors.aliyuncs.com
 * epel: mirrors.aliyuncs.com
 * extras: mirrors.aliyuncs.com
 * updates: mirrors.aliyuncs.com
base                                                                                                                                   | 3.7 kB     00:00     
epel                                                                                                                                   | 4.3 kB     00:00     
extras                                                                                                                                 | 3.4 kB     00:00     
updates                                                                                                                                | 3.4 kB     00:00     
Resolving Dependencies
--> Running transaction check
---> Package kernel.x86_64 0:2.6.32-642.6.2.el6 will be installed
--> Finished Dependency Resolution

Dependencies Resolved

==============================================================================================================================================================
 Package                           Arch                              Version                                         Repository                          Size
==============================================================================================================================================================
Installing:
 kernel                            x86_64                            2.6.32-642.6.2.el6                              updates                             32 M

Transaction Summary
==============================================================================================================================================================
Install       1 Package(s)

Total download size: 32 M
Installed size: 131 M
Is this ok [y/N]: y
Downloading Packages:
kernel-2.6.32-642.6.2.el6.x86_64.rpm                                                                                                   |  32 MB     00:31     
Running rpm_check_debug
Running Transaction Test
Transaction Test Succeeded
Running Transaction
  Installing : kernel-2.6.32-642.6.2.el6.x86_64                                                                                                           1/1 
  Verifying  : kernel-2.6.32-642.6.2.el6.x86_64                                                                                                           1/1 

Installed:
  kernel.x86_64 0:2.6.32-642.6.2.el6                                                                                                                          

Complete!

yum update kernel

Loaded plugins: fastestmirror

Setting up Update Process

Loading mirror speeds from cached hostfile

* base: mirrors.aliyuncs.com

* epel: mirrors.aliyuncs.com

* extras: mirrors.aliyuncs.com

* updates: mirrors.aliyuncs.com

base | 3.7 kB 00:00

epel | 4.3 kB 00:00

extras | 3.4 kB 00:00

updates | 3.4 kB 00:00

Resolving Dependencies

--> Running transaction check

---> Package kernel.x86_64 0:2.6.32-642.6.2.el6 will be installed

--> Finished Dependency Resolution

Dependencies Resolved

==============================================================================================================================================================

Package Arch Version Repository Size

==============================================================================================================================================================

Installing:

kernel x86_64 2.6.32-642.6.2.el6 updates 32 M

Transaction Summary

==============================================================================================================================================================

Install 1 Package(s)

Total download size: 32 M

Installed size: 131 M

Is this ok [y/N]: y

Downloading Packages:

kernel-2.6.32-642.6.2.el6.x86_64.rpm | 32 MB 00:31

Running rpm_check_debug

Running Transaction Test

Transaction Test Succeeded

Running Transaction

Installing : kernel-2.6.32-642.6.2.el6.x86_64 1/1

Verifying : kernel-2.6.32-642.6.2.el6.x86_64 1/1

Installed:

kernel.x86_64 0:2.6.32-642.6.2.el6

Complete!

重启服务器

Shell

reboot

1

reboot
再次执行脚本，确认修复

Shell

bash ~/rh-cve-2016-5195_1.sh Your kernel is 2.6.32-642.6.2.el6.x86_64 which is NOT vulnerable.

1
2

bash ~/rh-cve-2016-5195_1.sh
Your kernel is 2.6.32-642.6.2.el6.x86_64 which is NOT vulnerable.

iphone热点不能联网

打开iphone的热点功能，

笔记本能连接上，但是显示无internet连接，

查看ipconfig

无线局域网适配器 无线网络连接:

连接特定的 DNS 后缀 . . . . . . . :
自动配置 IPv4 地址 . . . . . . . : 169.254.64.152
子网掩码 . . . . . . . . . . . . : 255.255.0.0
默认网关. . . . . . . . . . . . . :

无线局域网适配器无线网络连接:

连接特定的 DNS 后缀 . . . . . . . :

自动配置 IPv4 地址 . . . . . . . : 169.254.64.152

子网掩码 . . . . . . . . . . . . : 255.255.0.0

默认网关. . . . . . . . . . . . . :

估计可能是iphone的dhcp功能有问题，重启iphone，还是不行，

把ip v4设置为手动，如下

无线局域网适配器 无线网络连接:

连接特定的 DNS 后缀 . . . . . . . :
IPv4 地址 . . . . . . . . . . . . : 172.20.10.2
子网掩码 . . . . . . . . . . . . : 255.255.255.240
默认网关. . . . . . . . . . . . . : 172.20.10.1

无线局域网适配器无线网络连接:

连接特定的 DNS 后缀 . . . . . . . :

IPv4 地址 . . . . . . . . . . . . : 172.20.10.2

子网掩码 . . . . . . . . . . . . : 255.255.255.240

默认网关. . . . . . . . . . . . . : 172.20.10.1

发现已经可以连接

Cactus Thinking

windows 升级遇到 0x80092004 错误

Could not resolve host:mirrors.cloud.aliyuncs.com

换个域名新的开始

怎么保存ipython历史到文件

在macOS上安装配置selenium-python

升级阿里云centos kernel修复CVE-2016-5195(Dirty COW)

iphone热点不能联网

VS Code 下载地址（Debian Linux）

Dropbox 离线安装包下载地址

记录一下，从burstnet搬家到linode