Articles tagged server

• 22.6.2025 server, linux

  How to run multiple commands on a remote server via SSH

  SSH automatically opens a shell on the host. It is easy to run a simple command and get the output and its return value. But what if your command contains …
• 24.5.2025 server, linux

  Goodbye Pico, hello Pelican

  I think my server got hacked. I’ll never know 100%, but after a reboot it would not accept the hard drive decryption password anymore. I know it’s an …
• 16.11.2024 24.9.2019 security, server

  Installing a Commercial SSL Server Certificate (nginx)

  Since CACert still isn’t “Browser Trusted”, and I still don’t want to use letsencrypt, I decided to give this a try.The company resides inside the European Union …
• 17.10.2024 30.9.2020 linux, server

  Setup NFS Share on Debian

  I did practically everything described here (archive).However, for automating the whole process with fstab on both client & server, this provided important extra information, esp. about bind-mounting existing filesystems into …
• 12.3.2024 server, linux

  Manually Migrate a WordPress Site

  Save the file.Log into the target machine’s phpMyAdminYou are done on the source machine now.
• 12.2.2023 linux, server

  Recreate bootable hard drive from backup image

  I made a mistake and need to fix it by converting a backup image to a fully partitioned hard drive. At the same time I will apply encryption.As root …
• 27.3.2022 3.6.2018 linux, server, debian

  Dist-upgrade Debian from oldstable to stable

  I have now dist-upgraded several times, always from (old)stable to stable. Originally written for a Jessie => Stretch upgrade, this text still applies for Buster => Bullseye and likely so on …
• 26.3.2022 14.3.2022 linux, server

  Upgrade PostgreSQL Database (Cluster) from one Major Version to Another

  I’m in the process of finally upgrading my Debian install from oldstable (buster) to stable (bullseye). My DAViCal installation uses PostgreSQL for its database backend. Strangely, I have two …
• 25.5.2021 server

  Migrate Old Server to New

  Two virtual servers with command line ssh and sftp access, administered from my local machine. I want to migrate everything from one server to the other, without an additional stop …
• 5.5.2021 linux, server, email

  Getting email off my web server with msmtp (and PHP)

  Sometimes I want to get a message from my server, e.g. diagnostic stuff from services (SMART daemon, fail2ban), or if someone tries to contact me on my website, and …