Georgiy Sitnikov GAS85

## battery_checker.md

      
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                GAS85
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              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:

  
## http2_apache2_ubuntu16.04.md

      
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                GAS85
                / http2_apache2_ubuntu16.04.md
            
            
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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.


## nextcloud_fail2ban.md

      
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                GAS85
                / nextcloud_fail2ban.md
            
            
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              April 8, 2024 20:51
            
              
                Harden Nextcloud 17+ with Fail2Ban, GUI and WebDAV - Ubuntu 20.04
              
          
    Fail2ban and Nextcloud

Prerequsits


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

Note


## fail2ban_cacti_deprecated.md

      
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                GAS85
                / fail2ban_cacti_deprecated.md
            
            
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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


## aria2c_webUI.md

      
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                GAS85
                / aria2c_webUI.md
            
            
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              November 28, 2023 13:41
            
              
                Aria2 + Ubuntu 18.04 + Apache2 + Web UI
              
          
    OS: Ubuntu 18.04 Apache/2.4.18 1.0.2g-1ubuntu4.10
Aim: to install Aria2 with WebUI and secure Token.
IP Addr of your Aria2 server is 192.168.0.111
Your local IP network is 192.168.0.0/24

Aria 2

1. Installation

Install aria2 package:

  
## apache_ssl.md

      
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                GAS85
                / apache_ssl.md
            
            
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              March 14, 2024 16:40
            
              
                Apache 2.4.18+ with Letsencrypt on Ubuntu 20.04 - SSL config for A+ on SSLLabs.com
              
          
    Prerequisites


Ubuntu 20.04 (18.04, 16.04 works the same)
Apache 2.4.18 or higher
OpenSSL 1.0.2g-1ubuntu4.10 or higher
e.g. LetsEncrypt certificate

OS: Ubuntu 20.04 Apache/2.4.18 1.0.2g-1ubuntu4.10 +