Georgiy Sitnikov GAS85

## http2_apache2_ubuntu18.04.md

      
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                GAS85
                / http2_apache2_ubuntu18.04.md
            
            
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              September 29, 2023 12:00
            
              
                How to Enable HTTP/2 in Apache 2.4 on Ubuntu 18.04
              
          
Based on https://gist.github.com/GAS85/990b46a3a9c2a16c0ece4e48ebce7300
This totorial is for an older Ubuntu 18.04, for a Ubuntu 20.04 please read here --> https://gist.github.com/GAS85/38eb5954a27d64ae9ac17d01bfe9898c

Requirements


A self-managed VPS or dedicated server with Ubuntu 18.04 running Apache 2.4.xx.
A registered domain name with working HTTPS (TLS/SSL). HTTP/2 only works alongside HTTPS because most browsers, including Firefox and Chrome, don’t support HTTP/2 in cleartext (non-TLS) mode.

Step 1: Install Apache2


## http2_apache2_ubuntu16.04.md

      
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                GAS85
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              February 7, 2023 16:17
            
              
                How to Enable HTTP/2 in Apache 2.4 on Ubuntu 16.04
              
          
Based on https://techwombat.com/enable-http2-apache-ubuntu-16-04/


This totorial is for an older Ubuntu 16.04, for a Ubuntu 18.04 please read here --> https://gist.github.com/GAS85/8dadbcb3c9a7ecbcb6705530c1252831 and for a Ubuntu 20.04 please read here* --> https://gist.github.com/GAS85/38eb5954a27d64ae9ac17d01bfe9898c


Requirements


A self-managed VPS or dedicated server with Ubuntu 16.04 running Apache 2.4.xx.
For Ubuntu 18.04 please read here --> https://gist.github.com/GAS85/8dadbcb3c9a7ecbcb6705530c1252831
A registered domain name with working HTTPS (TLS/SSL). HTTP/2 only works alongside HTTPS because most browsers, including Firefox and Chrome, don’t support HTTP/2 in cleartext (non-TLS) mode.


## fail2ban_cacti_deprecated.md

      
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                GAS85
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              May 20, 2020 07:55
            
              
                Fail2Ban and Cacti - read MySQL table
              
          
    Fail2Ban and Cacti - read MySQL/MariaDB table

Please Note: This is an old way of working, for a newer please refer to https://gist.github.com/GAS85/4fd4715eb7c2c9f585dc0f6309940562

I took it from here, but becasue of newer MySQL it needs to be updated a bit.
Prerequsits


Ubuntu 16.04


## fail2ban_cacti.md

      
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                GAS85
                / fail2ban_cacti.md
            
            
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              May 20, 2020 07:54
            
              
                Harden Cacti with Fail2Ban
              
          
    Fail2Ban and Cacti

Prerequsits


Ubuntu 20.04
cacti, fail2ban and e.g. iptables are installed

Setup


## apache2_restrictDirectAccess.md

      
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                GAS85
                / apache2_restrictDirectAccess.md
            
            
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              March 23, 2020 09:01
            
              
                Apache2 Restrict direct IP access to website
              
          
    Just added this into Apache2 config. E.g. /etc/apache2/sites-available/900-restrictDirectIP.conf and enable it afterwards.
<VirtualHost 192.168.0.1:80>
	ServerName 192.168.0.1
	Redirect 403 /
	ErrorDocument 403 "Sorry, direct IP access not allowed."
	DocumentRoot /var/www/html
	ErrorLog ${APACHE_LOG_DIR}/error_directIPAccess.log
	CustomLog ${APACHE_LOG_DIR}/access_directIPAccess.log combined

  
## battery_checker.md

      
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                GAS85
                / battery_checker.md
            
            
              Last active
              October 16, 2018 08:10
            
              
                Cubietruck + Battery + Armbian - shutdown server if critical battery level reached. Just added it to /etc/cron.hourly
              
          
    MOVED TO https://github.com/GAS85/cubietruck
I create a script that will try to send Warning Email and and shutdown the system as soon as it goes below 10%.
I put it in cron hourly and script should automatically check and do loop if battery discharging and below e.g. 80%.
E-Mail is needed because last time I did not know that my power supply died and I did not know why sever stopped. This version is also producing logs that could be checked after cubietruck fails. That helps for trouble shooting, e.g. to find out that power supply could not produce enough current to charge battery.
Log output example: