Centos7 install sshd

 3  sudo yum install openssh opessh-server

    5  vi /etc/ssh/sshd_config

    7  systemctl restart sshd.service

    8  systemctl status sshd.service

    9  sudo systemctl enable sshd.service

ref:

https://www.brilliantcode.net/124/centos-7-install-and-configure-ssh/

https://phoenixnap.com/kb/how-to-enable-ssh-centos-7

Machine learning on line demo or good paper

 1. svm

 https://greitemann.dev/svm-demo

2.  tensor flow

https://playground.tensorflow.org/#activation=linear&batchSize=10&dataset=gauss&regDataset=reg-plane&learningRate=0.03&regularizationRate=0&noise=0&networkShape=&seed=0.96726&showTestData=false&discretize=false&percTrainData=50&x=true&y=true&xTimesY=true&xSquared=false&ySquared=false&cosX=false&sinX=false&cosY=false&sinY=false&collectStats=false&problem=classification&initZero=false&hideText=false

3. percentage

https://medium.com/jameslearningnote/%E8%B3%87%E6%96%99%E5%88%86%E6%9E%90-%E6%A9%9F%E5%99%A8%E5%AD%B8%E7%BF%92-%E7%AC%AC3-2%E8%AC%9B-%E7%B7%9A%E6%80%A7%E5%88%86%E9%A1%9E-%E6%84%9F%E7%9F%A5%E5%99%A8-perceptron-%E4%BB%8B%E7%B4%B9-84d8b809f866

https://ithelp.ithome.com.tw/articles/10215769

nfdump command quickly

 

# quickly 

https://yurisk.info/2020/09/20/nfdump-netflow-usage-examples-cookbook/

#

https://nfdump.sourceforge.net/

#

https://manpages.ubuntu.com/manpages/xenial/man1/nfdump.1.html

ubuntu install and some services

 1. https://blog.gtwang.org/linux/install-ubuntu-linux-to-usb-stick/

2. install  nfs

https://linuxhint.com/install-and-configure-nfs-server-ubuntu-22-04/

Chatgpu

 

https://www.readfog.com/a/1688165476098740224

https://arxiv.org/pdf/2104.04473.pdf

https://medium.com/@gibramraul/security-attack-on-chatgpt-step-by-step-36edb949e56d

python effective and data

 https://www.readfog.com/a/1686829807819657216

# python sqlaclemy

https://docs.sqlalchemy.org/en/20/core/engines.html

https://towardsdatascience.com/sqlalchemy-python-tutorial-79a577141a91

https://ithelp.ithome.com.tw/articles/10220446

# python regular

https://chwang12341.medium.com/%E7%B5%A6%E8%87%AA%E5%B7%B1%E7%9A%84python%E5%B0%8F%E7%AD%86%E8%A8%98-%E5%BC%B7%E5%A4%A7%E7%9A%84%E6%95%B8%E6%93%9A%E8%99%95%E7%90%86%E5%B7%A5%E5%85%B7-%E6%AD%A3%E5%89%87%E8%A1%A8%E9%81%94%E5%BC%8F-regular-expression-regex%E8%A9%B3%E7%B4%B0%E6%95%99%E5%AD%B8-a5d20341a0b2

ELK

 1. https://ithelp.ithome.com.tw/users/20103420/ironman/1046

2. https://ithelp.ithome.com.tw/articles/10186351

3. https://ithelp.ithome.com.tw/articles/10186349

4. https://github.com/deviantony/docker-elk

5. security elk

https://ithelp.ithome.com.tw/articles/10216666

6. git

https://github.com/deviantony/docker-elk/blob/main/docker-compose.yml

7. file beat

https://www.elastic.co/guide/en/beats/filebeat/current/running-on-docker.html

https://hackmd.io/@QCZ_Kvv1ScixyAPzRYDKWQ/SytK_Y9HE?type=view

8. elk license 

https://techexpert.tips/elasticsearch/elasticsearch-trial-license-installation/

9.  video

https://www.youtube.com/watch?v=DVgKDPf7hOU&ab_channel=CodingExplained

10. filebeat nginx

https://www.bmc.com/blogs/elasticsearch-filebeat-nginx/

https://linyencheng.github.io/2020/09/02/elastic-logging-quick-start/

https://ithelp.ithome.com.tw/articles/10275576