From this tutorial, you will learn how to modify your dns on your macOS. 
 

Tools:
Mac laptop
 
 1. Go to your mac os System Preferences option, click the apple icon on the top left screen .
 

 
2.  Click on Network
 

 
3. Select the first connection in your list and click Advanced
 

 
 
 
 
 
4. Select the DNS tab and add 208.67.222.222 and 208.67.220.220 to the list of DNS servers. Click OK
 

 
5. cache and web browser caches to ensure that your new DNS configuration settings take immediate effect.



At the point, we highly suggest that you flush your DNS resolver cache and web browser caches to ensure that your new DNS configuration settings take immediate effect.
 
Video Instruction:
 
 





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1. We need use two core modules
 
modprobe ipmi_si
modprobe ipmi_devintf
echo ipmi_si >> /etc/modprobe
echo ipmi_devintf >> /etc/modprobe2. Install ipmitool via apt-get
 
apt-get install ipmitool3. List ipmi   network infos
 
ipmitool lan print4. List users
 
ipmitool user list 1 view all

modprobe ipmi_si

modprobe ipmi_devintf

echo ipmi_si >> /etc/modprobe

echo ipmi_devintf >> /etc/modprobe

apt-get install ipmitool

ipmitool lan print

ipmitool user list 1

1. check installed python version
 
python
Python 2.7.9 (default, Mar 1 2015, 18:22:53)
[GCC 4.9.2] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>>
2. update software packages
 
apt-get update
apt-get upgrade
3. install some essential packages
 
aptitude -y install gcc make zlib1g-dev libffi-dev libssl-devif alert -bash: aptitude: command not found ,you need have to install aptitude
 
apt-get install aptitude4. download python3.6.5
 
wget [url=https://www.python.org/ftp/python/3.6.5/Python-3.6.5.tgz]https://www.python.org/ftp/pyt ... 5.tgz[/url]
 
 
5. unzip it
 
tar -xvf Python-3.6.5.tgz
 
6.add authority to this file
 
chmod -R +x Python-3.6.57. enter and install it
 
cd Python-3.6.5/
./configure8. move to other file 
 
./configure --prefix=/opt/python3.6.5you would see this infomation
If you want a release build with all optimizations active (LTO, PGO, etc), please run ./configure --enable-optimizations.9. install some other packages
aptitude -y install libffi-dev libssl-devmake && make installif you can see information as follows ,you installed it successfully
Collecting setuptools
Collecting pip
Installing collected packages: setuptools, pip
Successfully installed pip-9.0.1 setuptools-28.8.010. clean
 
make clean
make distclean
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python

Python 2.7.9 (default, Mar  1 2015, 18:22:53)

[GCC 4.9.2] on linux2

Type "help", "copyright", "credits" or "license" for more information.

>>>

apt-get update

apt-get upgrade

aptitude -y install gcc make zlib1g-dev libffi-dev libssl-dev

apt-get install aptitude

wget [url=https://www.python.org/ftp/python/3.6.5/Python-3.6.5.tgz]https://www.python.org/ftp/pyt ... 5.tgz[/url]

tar -xvf Python-3.6.5.tgz

chmod -R +x Python-3.6.5

cd Python-3.6.5/

./configure

./configure --prefix=/opt/python3.6.5

If you want a release build with all optimizations active (LTO, PGO, etc), please run ./configure --enable-optimizations.

aptitude -y install  libffi-dev libssl-dev

make && make install

Collecting setuptools

Collecting pip

Installing collected packages: setuptools, pip

Successfully installed pip-9.0.1 setuptools-28.8.0

make clean 

make distclean