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YongmingZhao / nginx.md
Created January 30, 2023 11:01
Nginx https bridge

Create a self-signed ssl server

sudo openssl req -x509 -nodes -days 365 -newkey rsa:2048 -keyout /etc/ssl/private/nginx-selfsigned.key -out /etc/ssl/certs/nginx-selfsigned.crt

Add config

ssl_certificate /etc/ssl/certs/nginx-selfsigned.crt;
ssl_certificate_key /etc/ssl/private/nginx-selfsigned.key;
@YongmingZhao
YongmingZhao / mysql.md
Created May 9, 2022 19:49
Cent OS Mysql

rpm -Uvh http://dev.mysql.com/get/mysql-community-release-el7-5.noarch.rpm
yum install mysql-server

  1. log-in your mysql via terminal as "root" --> mysql -uroot -p
  2. CREATE USER 'toor123'@'%' IDENTIFIED BY 'your-password';
  3. GRANT ALL PRIVILEGES ON . TO 'toor123'@'%';flush privileges;
  4. Open mysql's configuration file: vi /etc/my.cnf
  5. Append the following directive into the [mysqld] section: bind-address=192.168.1.80 (server's address)
  6. Make sure line "skip-networking" is commented
  7. Store your changes and restart Mysqld: systemctl start|stop|status mysqld
  8. firewall-cmd --zone=public --add-port=3306/tcp --permanent
@YongmingZhao
YongmingZhao / build.md
Last active April 17, 2022 14:10
Build Metamask on Mac

  • Prepare a working directory:

    (Optional) nvm is conflict with asdf, if nvm is installed, deactive it

    nvm unload
rm -rf ~/.nvm # important, further steps will scan this path, remove or rename it

    Create a working directory:

    

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mkdir metamask



  


  




    


          
    

      

        
        

          

              @YongmingZhao
          

          

            
                YongmingZhao
                / libsecp256k1.md
            
            

              Created
              April 7, 2022 10:55
            

              
                Compile libsecp256 with blockscout
              
          

        

      

        

  

      

    
    

  • Clean old build files: rm -rf _build deps; mix deps.clean --all
    • 

  • Download deps: mix deps.get
    • 

  • Install tools and other libs: sudo port install gmp libtool
    • 

  • Try build libsecp256k1: cd deps/libsecp256k1/c_src/secp256k1; aclocal; autoconf; cd ..; ./build_deps.sh
    • 

  • Try build blockscout: cd blockscout; mix do deps.get, local.rebar --force, deps.compile, compile
    • 

  • If gmp.h not found, then modify Makefile: vi deps/libsecp256k1/Makefile,
add following CFLAGS += -I /opt/local/include -L /opt/local/lib
    • 

  • Rebuild blockscout: mix do deps.get, local.rebar --force, deps.compile, compile
    • 




  


  




    


          
    

      

        
        

          

              @YongmingZhao
          

          

            
                YongmingZhao
                / build_erlang_ssl.sh
            
            

              Created
              March 30, 2022 10:28
            

              
                Compile openssl and Erlang/OTP
              
          

        

      

        

  

    
    


        



  


  

        

          
          #!/bin/bash
        

        

          
          

        

        

          
          cd openssl-3.0.2
        

        

          
          ./Configure shared --prefix=`pwd`/target --openssldir=`pwd`/target
        

        

          
          make
        

        

          
          make install
        

        

          
          cd ../blockscout
        

        

          
          export KERL_CONFIGURE_OPTIONS=--without-javac --with-ssl=/somepath/openssl-3.0.2/target
        

        

          
          asdf install erlang 24.2
        

  





    


  




    


          
    

      

        
        

          

              @YongmingZhao
          

          

            
                YongmingZhao
                / clone.sh
            
            

              Last active
              March 30, 2022 12:53
            

              
                Git clone a repository and push to another
              
          

        

      

        

  

    
    


        



  


  

        

          
          git clone -b v4.1.2-beta --depth 1 https://github.com/poanetwork/blockscout
        

        

          
          cd blockscout
        

        

          
          git remote rename origin upstream
        

        

          
          git remote add origin [email protected]:YongmingZhao/blockscout.git
        

        

          
          git branch -f master HEAD
        

        

          
          git checkout master
        

        

          
          git fetch --unshallow upstream
        

        

          
          git push origin master
        

  





    


  




    


          
    

      

        
        

          

              @YongmingZhao
          

          

            
                YongmingZhao
                / download.html
            
            

              Created
              March 2, 2022 10:49
            

              
                Download a file with authentication
              
          

        

      

        

  

    
    


        



  


  

        

          
          <!DOCTYPE html>
        

        

          
          <html>
        

        

          
          

        

        

          
          <head>
        

        

          
              <meta name="viewport" content="width=device-width, initial-scale=1">
        

        

          
              <style>
        

        

          
              </style>
        

        

          
              <script src="https://code.jquery.com/jquery-3.6.0.js"
        

        

          
                  integrity="sha256-H+K7U5CnXl1h5ywQfKtSj8PCmoN9aaq30gDh27Xc0jk=" crossorigin="anonymous"></script>
        

        

          
              <script>
        

  





    


  




    


          
    

      

        
        

          

              @YongmingZhao
          

          

            
                YongmingZhao
                / regex.txt
            
            

              Last active
              March 28, 2022 19:00
            

              
                JS regex
              
          

        

      

        

  

    
    


        



  


  

        

          
          ^CREATE[\s\w`\(\n\),'\u00000-\uFFFFF-]*;$ //match sql
        

        

          
          ^(\s)*$\n //match empty line
        

  





    


  




    


          
    

      

        
        

          

              @YongmingZhao
          

          

            
                YongmingZhao
                / steps.txt
            
            

              Last active
              December 15, 2021 13:54
            

              
                Setting up ubuntu on virtual box
              
          

        

      

        

  

    
    


        



  


  

        

          
          1.Enable sharing folders:
        

        

          
          sudo apt-get install virtualbox-guest-additions-iso
        

        

          
          sudo mount -o loop /usr/share/virtualbox/VBoxGuestAdditions.iso /media/
        

        

          
          cd /media
        

        

          
          sudo ./VBoxLinuxAdditions.sh
        

        

          
          sudo reboot
        

        

          
          sudo adduser jeff vboxsf
        

        

          
          

        

        

          
          

        

        

          
          2.Enlarge partitions: