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Apps
Updating Roundcube
(2021-01-18)
CentOS
Additional PHP versions on CentOS
(2021-08-20)
Debian
Upgrading Debian 8 ("Jessie") to Debian 9 ("Stretch")
(2020-07-02)
Upgrading Debian 10 ("Buster") to Debian 11 ("Bullseye")
(2021-08-20)
Upgrading Debian 11 ("Bullseye") to Debian 12 ("Bookworm")
(2023-05-04)
Additional PHP versions on Debian/Ubuntu Linux
(2024-04-15)
Upgrading Debian 9 ("Stretch") to Debian 10 ("Buster")
(2024-09-20)
DNS
Using DNSSEC
(2020-08-18)
Enable logging with BIND
(2022-02-15)
Using DANE/TLSA
(2022-09-14)
Using DKIM
(2024-01-24)
E-Mail
Improving Spam Filtering
(2019-11-25)
Using DANE/TLSA
(2022-09-14)
Using DKIM
(2024-01-24)
General
Disaster Recovery
(2021-03-10)
Linux
Configuring File System Quota
(2019-10-31)
Server Tuning
(2020-03-03)
Server Security
(2020-08-31)
CPU usage explained
(2021-08-26)
Versions of Software Packages
(2023-09-11)
LiveConfig
Using the IFRAME API
(2020-04-14)
LiveConfig & DRBD
(2020-12-09)
Securing LiveConfig with Let's Encrypt
(2021-05-05)
Running LiveConfig behind a proxy
(2021-05-05)
Site.pro Website Builder
(2021-05-25)
Security Announcements
(2021-12-07)
Repairing a SQLite database
(2022-05-17)
LiveConfig 3
(2024-09-10)
Moving from SQLite to MySQL
(2024-09-16)
LiveConfig 3 - REST API
(2024-11-07)
MySQL
Error "Can't connect to /tmp/mysql.sock"
(2020-08-13)
MySQL Single Sign-On with phpMyAdmin
(2020-09-16)
MySQL 8
(2020-12-22)
SSL
Using the Let's Encrypt Staging Environment
(2019-11-20)
Tips for SSL/TLS configuration
(2022-07-06)
Ubuntu
Additional PHP versions on Debian/Ubuntu Linux
(2024-04-15)
Latest articles:
Using DKIM
(2024-01-24)
Upgrading Debian 11 ("Bullseye") to Debian 12 ("Bookworm")
(2023-05-04)
Tips for SSL/TLS configuration
(2022-07-06)
LiveConfig 3 - REST API
(2022-06-28)
Repairing a SQLite database
(2022-05-17)
Recently updated:
LiveConfig 3 - REST API
(2024-11-07)
Upgrading Debian 9 ("Stretch") to Debian 10 ("Buster")
(2024-09-20)
Moving from SQLite to MySQL
(2024-09-16)
LiveConfig 3
(2024-09-10)
Additional PHP versions on Debian/Ubuntu Linux
(2024-04-15)