Pretty cool! I almost missed that Debian 10.3 got released last week. This is a corrective release, meaning it's about improving stability and security rather than about introducing major innovations. Upgrade Debian 10.2 to 10.3 I only have one … [Continue reading] about Debian 10.3 Released
Systemd Startup Times with systemd-analyze
Systemd had the goal of optimising startup times from the very beginning. It is therefore no particular wonder that it has a tool for precise startup timing and analysis: systemd-analyze. Systemd Startup Analysis Run without command line … [Continue reading] about Systemd Startup Times with systemd-analyze
Project: Password Protect a Website with nginx
I needed to keep a few older websites online for a short little while, but didn't want to leave them wide open in case older CMS systems were vulnerable - so I decided to protect them with password. What is nginx? nginx (pronounced Engine-Ex) … [Continue reading] about Project: Password Protect a Website with nginx
Host Key Verification Failed
When reinstalling servers with new versions of operating system or simply reprovisioning VMs under the same hostname, you eventually get this Host Key Verification Failed scenario. Should be easy enough to fix, once you're positive that's a valid … [Continue reading] about Host Key Verification Failed
Resume Downloads with curl
If you're on an unstable WiFi hotspot or simply forgot about a curl download and shut down your laptop, there's a really cool thing to try: resume download from where you left off. How To Download a File with curl I'm downloading the Solus 4.1 … [Continue reading] about Resume Downloads with curl
Secure Keyboard Input in bash Scripts
I needed to create a very simple bash script that required a password to be provided using keyboard and then used further in the script. Turns out, there's just a way to do it with the bash built-in function called read. … [Continue reading] about Secure Keyboard Input in bash Scripts
Failed Login Attempts for root User
Wow, things are much worse than I expected! I'm reinstalling one of the dedicated hosts for Tech Stack. Kicked off the reinstall with CentOS 8 and came back a few hours later, to see this: [greys@s1 ~]$ su - Password: Last login: Tue Feb 4 … [Continue reading] about Failed Login Attempts for root User
shutdown vs halt
Getting the difference between shutting a Unix system down versus halting it is kind of important. Graceful shutdown It's important that your Unix/Linux system completes startup or shutdown in a graceful manner. What this means is that every … [Continue reading] about shutdown vs halt
Unix Tutorial Digest – February 2nd, 2020
For those staying up late to watch Super Bowl LIV and those just looking for a few interesting links, here's the monthly summary of Unix/Linux news and Unix Tutorial posts. Please get in touch to arrange a technical consultation with me or … [Continue reading] about Unix Tutorial Digest – February 2nd, 2020
Show Files Installed by a Debian/Ubuntu Package
Sometimes it's not enough to know that a certain package is installed on your Linux system. You want to know the full list of files installed by the package, with exact locations of such files. This is when dpkg-query command may help. … [Continue reading] about Show Files Installed by a Debian/Ubuntu Package