Author: Ivan Melnyk
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Change the Boot Kernel Version in Linux
Sometimes when you upgrade your Linux (Ubuntu/Debian) the Kernel may be updated too and it can cause some issues, like sound card stopped working, or some other server utilities, for example ocfs2/o2cb. In this post you will find how to switch your kernel version to the previous one or back to default one.
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SSH Key Pair for Secure Connection
This post will show you how to generate the new SSH keys for your GitHub, GitLab, BitBucket repository or remote/web server, for example, to be able to connect to your remote/web server securely, or git checkout using the SSH key and not username/password.
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Curl SSL Certificates problem
If you are facing an issue with curl: (60) SSL certificate problem: unable to get local issuer certificate, this article will provide possible solution.
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Cloudflared Client on Docker Compose
When you create a Zero Trust tunnel in Cloudflare, the simplest and easiest way to install the tunnel client on your machine is to run the command Cloudflare provided to you on the tunnel page. But if you need to run the Cloudflared client as a docker container, this article will help you to make…
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Free Mail Server on OCI – Docker-Mailserver
Free Mail Server on OCI (Oracle Cloud Infrastructure), using the Ubuntu OS, Docker with Compose and Docker Mailserver containerized image. Docker-Mailserver.
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Free Mail Server on OCI – Docker, Cron, Certbot
Free Mail Server on OCI (Oracle Cloud Infrastructure), using the Ubuntu OS, Docker with Compose and Docker Mailserver containerized image. Docker, Cron, Certbot.
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Free Mail Server on OCI – OCFS2
Free Mail Server on OCI (Oracle Cloud Infrastructure), using the Ubuntu OS, Docker with Compose and Docker Mailserver containerized image. OCFS2.
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Free Mail Server on OCI – Swapfile
Free Mail Server on OCI (Oracle Cloud Infrastructure), using the Ubuntu OS, Docker with Compose and Docker Mailserver containerized image. Swapfile.
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Free Mail Server on OCI – Compute Instance
Free Mail Server on OCI (Oracle Cloud Infrastructure), using the Ubuntu OS, Docker with Compose and Docker Mailserver containerized image. Compute Instance.
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Free Mail Server on OCI – Virtual Cloud Network
Free Mail Server on OCI (Oracle Cloud Infrastructure), using the Ubuntu OS, Docker with Compose and Docker Mailserver containerized image. Virtual Cloud Network.
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Free Mail Server on OCI – Data Block Volume
Free Mail Server on OCI (Oracle Cloud Infrastructure), using the Ubuntu OS, Docker with Compose and Docker Mailserver containerized image. Data Block Volume.
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Free Mail Server on OCI – IPv4 Address, PTR
Free Mail Server on OCI (Oracle Cloud Infrastructure), using the Ubuntu OS, Docker with Compose and Docker Mailserver containerized image. IPv4 Address, PTR.