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Postfix 3.6 changes terminology: white and black are deprecated
BBC News – the newest hacking site (according to Twitter)
Mediacenter Kodi releases version 19.0 "Matrix"
Linux Kernel 5.11 "Valentine's Day" released and 5.12 development delayed
Articles
Maximum HTTP request header size defaults compared across web servers
The end of OTRS Community Edition – but here comes Znuny (and other forks)!
What is a DNSBL (DNS Black List) and how do they work against spams?
Introduction and how to install Varnish Cache on Linux
Tutorials
How to work around the nagios-plugins check_disk perfdata bug in CentOS
How to protect your WordPress site from brute force login attacks
How to mass change file ownerships, even symbolic links
How to find CPU information (type and model) on Android
Crypto
How to send $ADA to a hardware wallet and stake (mine) ADA / Cardano?
Claudio Kuenzler
Claudio has been writing way over 1000 articles on his own blog since 2008 already. He is fascinated by technology, especially Open Source Software. As a Senior Systems Engineer he has seen and solved a lot of problems - and writes about them.
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News
Postfix 3.6 changes terminology: white and black are deprecated
News
BBC News – the newest hacking site (according to Twitter)
News
Mediacenter Kodi releases version 19.0 "Matrix"
Articles
Maximum HTTP request header size defaults compared across web servers
Tutorials
How to work around the nagios-plugins check_disk perfdata bug in CentOS
News
Linux Kernel 5.11 "Valentine's Day" released and 5.12 development delayed
News
The end of OTRS Community Edition – but here comes Znuny (and other forks)!
News
Docker donates the Docker Hub codebase Distribution (former Registry) to CNCF
Articles
What is a DNSBL (DNS Black List) and how do they work against spams?
Articles
Introduction and how to install Varnish Cache on Linux
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Latest
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Latest Posts
Postfix 3.6 changes terminology: white and black are deprecated
BBC News – the newest hacking site (according to Twitter)
Mediacenter Kodi releases version 19.0 "Matrix"
Maximum HTTP request header size defaults compared across web servers
How to work around the nagios-plugins check_disk perfdata bug in CentOS