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@achesco
achesco / generate-mongo-ssl.md
Last active July 1, 2025 16:19
Generate self-signed SSL certificates for MongoDb server and client

CNs are important!!! -days 3650

Make PEM containig a public key certificate and its associated private key

openssl req -newkey rsa:2048 -new -x509 -days 3650 -nodes -subj '/C=US/ST=Massachusetts/L=Bedford/O=Personal/OU=Personal/emailAddress=example@example.com/CN=localhost' -out mongodb-cert.crt -keyout mongodb-cert.key
cat mongodb-cert.key mongodb-cert.crt > mongodb.pem



  


  




    


          
    

      

        
        

          

              @JBlond
          

          

            
                JBlond
                / bash-colors.md
            
            

              Last active
              October 11, 2025 10:13
                — forked from iamnewton/bash-colors.md
            

              
                The entire table of ANSI color codes.
              
          

        

      

        

  

      

    
Regular Colors






Value
Color






\e[0;30m
Black




\e[0;31m
Red




\e[0;32m
Green




\e[0;33m
Yellow




\e[0;34m
Blue




\e[0;35m
Purple







  


  




    


          
    

      

        
        

          

              @ppdeassis
          

          

            
                ppdeassis
                / HOWTO_mailx.sh
            
            

              Created
              June 30, 2016 17:50
            

              
                Setting up mailx to send mail from command line using external server
              
          

        

      

        

  

    
    


        



  


  

        

          
          # ref: https://coderwall.com/p/ez1x2w/send-mail-like-a-boss
        

        

          
          

        

        

          
          # install mailx
        

        

          
          yum -y install mailx
        

        

          
          

        

        

          
          # create a directory with a certificate, to send mail using TLS
        

        

          
          mkdir ~/.certs
        

        

          
          certutil -N -d ~/.cert
        

        

          
          

        

        

          
          # create a user ~/.mailrc, to use custom settings
        

  





    


  




    


          
    

      

        
        

          

              @jyeary
          

          

            
                jyeary
                / HostIPValidation.java
            
            

              Last active
              November 21, 2019 23:57
            

              
                An example of how to use Guava to validate hostnames, and IP addresses.
              
          

        

      

        

  

    
    


        



  


  

        

          
          /*
        

        

          
           * Copyright 2015-2016 Blue Lotus Software, LLC.
        

        

          
           *
        

        

          
           * Licensed under the Apache License, Version 2.0 (the "License");
        

        

          
           * you may not use this file except in compliance with the License.
        

        

          
           * You may obtain a copy of the License at
        

        

          
           *
        

        

          
           *      http://www.apache.org/licenses/LICENSE-2.0
        

        

          
           *
        

        

          
           * Unless required by applicable law or agreed to in writing, software
        

  





    


  




    


          
    

      

        
        

          

              @vsouza
          

          

            
                vsouza
                / .bashrc
            
            

              Last active
              September 19, 2025 15:41
            

              
                Golang setup in Mac OSX with HomeBrew. Set `GOPATH` and `GOROOT` variables in zshell, fish or bash.
              
          

        

      

        

  

    
    


        



  


  

        

          
          # Set variables in .bashrc file
        

        

          
          

        

        

          
          # don't forget to change your path correctly!
        

        

          
          

        

        

          
          export GOPATH=$HOME/golang
        

        

          
          export GOROOT=/usr/local/opt/go/libexec
        

        

          
          export PATH=$PATH:$GOPATH/bin
        

        

          
          export PATH=$PATH:$GOROOT/bin
        

  





    


  




    


          
    

      

        
        

          

              @rgreenjr
          

          

            
                rgreenjr
                / postgres_queries_and_commands.sql
            
            

              Last active
              October 11, 2025 04:08
            

              
                Useful PostgreSQL Queries and Commands
              
          

        

      

        

  

    
    


        



  


  

        

          
          -- show running queries (pre 9.2)
        

        

          
          SELECT procpid, age(clock_timestamp(), query_start), usename, current_query 
        

        

          
          FROM pg_stat_activity 
        

        

          
          WHERE current_query != '<IDLE>' AND current_query NOT ILIKE '%pg_stat_activity%' 
        

        

          
          ORDER BY query_start desc;
        

        

          
          

        

        

          
          -- show running queries (9.2)
        

        

          
          SELECT pid, age(clock_timestamp(), query_start), usename, query 
        

        

          
          FROM pg_stat_activity 
        

        

          
          WHERE query != '<IDLE>' AND query NOT ILIKE '%pg_stat_activity%'