Trinh Quoc Manh manh-trinhquoc

## MySql-5.6-installation guide.md

      
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                vinodpandey
                / MySql-5.6-installation guide.md
            
            
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              March 25, 2024 18:13
            
              
                Install MySQL 5.6.xx on Ubuntu 18.04 & Ubuntu 20.04
              
          
    MySQL Download URL
https://dev.mysql.com/get/Downloads/MySQL-5.6/mysql-5.6.46-linux-glibc2.12-x86_64.tar.gz
Open the terminal and follow along:


Uninstall any existing version of MySQL

sudo rm /var/lib/mysql/ -R


## ubuntu-server-hardening.md

      
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                mirajehossain
                / ubuntu-server-hardening.md
            
            
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              June 15, 2024 13:12
            
              
                ubuntu-server-hardening checklist
              
          
    Ubuntu-Server-Hardening

1. Secure Shared Memory

What is shared memory?

Shared memory is an efficient means of passing data between programs. Because two or more processes can use the same memory space, it has been discovered that, since shared memory is, by default, mounted as  read/write, the /run/shm space can be easily exploited.
That translates to a weakened state of security.
If you’re unaware, shared memory can be used in an attack against a running service. Because of this, you’ll want to secure that portion of system memory.