apt-get An error occurred during the signature verification

When running apt update, i get following error

To fix this error, run

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Expired Updates for this repository will not be applied

When running apt update on a Debian jessie server, i get following error

To fix the error, run

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Install ModSecurity on Debian

To install ModSecurity on Debian/Ubuntu Apache web server, run

Restart Apache web server

Verify mod_security installed with

To activate ModSecurity rules, run

Edit

set

Get latest rules

Emable the config file

Edit file

Add

Restart Apache

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apt force IPv4

One of my internet provider only provide IPv4 connection. When i run apt install command, it failed with error as it try to connect using IPv6.

To force apt to use IPv4 only, edit

Add

If you want to force IPv6, add

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Install Elasticsearch 6 on Debian for Magento

To install Elasticsearch for Magento on Debian, install Java 1.8 and apt-transport-https

Add key

Add repository

Install Elasticsearch

Enable and start Elasticsearch

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debconf: unable to initialize frontend: Dialog

When installing a program in Ubuntu 18.04 server minimal installation, i get following error

To fix this, run

Related Posts Errors apt […]

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Tor Hidden Service in Ubuntu/Debian

tor browser

To install tor on Ubuntu/Debian, run

Default configuration file for tor is /etc/tor/torrc To enable hidden service, edit /etc/tor/torrc

uncomment lines

Create folder for your hidden service

You need to install Apache/Nginx etc.. to serve your web application. Make sure to configure web application listen on 127.0.0.0:80 Now restart tor with […]

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Using apt-get to manage software

apt-get used to manage packages in Debian/Ubuntu server. Install A Package

Uninstall a software (keep configuration file)

Uninstall a software and its configuration files

To upgrade a software

Update Package Info

Remove Unwanted Programs

Back to apt […]

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Install ShadowSocks server on Debian 10

To install ShadowSocks server on Debian 10, run

Create config file

Add following

You can change server_port if required. To enable service, run

To start shadowsocks proxy, run

For status/restart

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Install RabbitMQ on Ubuntu/Debian

To install rabbitmq on Ubuntu/Debian, run

To start RabbitMQ server, run

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