Cybersecurity is now core to every technical role. DevOps. AppDev. SRE. Architects. Watch "Cybersecurity Skills: A Framework That Works" -- an on-demand webinar -- to learn how to close key security skill gaps for you and your teams.

Watch now: https://training.linuxfoundation.org/resources/webinars/cybersecurity-skills-framework-webinar/

Happy #WorldPenguinDay!
Did you know #Tux, the #Linux mascot penguin, was designed by Larry Ewing in 1996 using the #opensource graphics tool #GIMP? The name “Tux” was chosen as an acronym for ‘Torvalds’ UniX’ and a reference to the black-and-white “tuxedo” appearance of penguins.

Want to grow your open source career? The LiFT Scholarship offers training & certs to help you level up—whether you're starting out or advancing.
Apply by April 30: https://app.smarterselect.com/programs/102338-Linux-Foundation-Education

A question for all the #selfhosting enthusiasts and #sysadmins out there:

I had a Go site on a VPS and recently decided to migrate to self-hosting Ghost on a Digital Ocean VPS (I was using Oracle before) and my site has become basically inaccessible. I checked the RAM usage in my admin and it's consistently above 90%. I have 1GB ram and figured I wouldn't need more since I don't get much traffic, but now everytime I try to open my site it takes forever to load.

What I don't understand is that, on the Oracle VPS, I not only had my Go site, but also had Caddy, Plausible for analytics with a #postgres DB and never had any issues. Now, all I have is the ghost site, mariadb, and caddy and nothing works.

Do I need more RAM or is this a DO thing? Both the Oracle and DO VPSes are hosted in the EU which is pretty far from here, to be fair. I do suspect it's a RAM issue because I can't even ssh into the VPS. When I try to open my site, the connection just loads until it eventually times out.

#linux #go #GhostCMS #nodejs

EDIT: adding the link in case someone wants to check it out, could just be my distance from the server

https://tawandamunongo.dev

#Linux #SysAdmins #NetworkAdmins

Ubuntu 24.04 system with a publicly-routable external IP address.

For a given incoming UDP port (<1024, call it port x, I can’t change this), I want to forward that to localhost (or the ens3 interface) on another port (>1024, port y) so I can invoke QEMU as non-root and forward port y to the emulated system’s port x via slirp.

Is this doable?

I’ve tried heaps of nat prerouted examples, but haven’t yet gotten anything to stick.

Boosts appreciated!

@falcennial it's helpful for #sysadmins and anyone who is running their own #firewall (regardpess if WAF, hosted/managed or DIY/bare metal), as they can just pull that Feed-URL to (un)block stuff automatically...

• I wished #Mastodon #developers would realize that supporting a Blocklist Feed is kinda crucial function as noome wants to spin up *yet another git just to diff&merge stuff because they only offer "add" and "replace" when it.comes to #CSV / #TSV input.

Use the 'lsof' command to quickly identify the ports that a specific service is listening on within a Linux system @opensuse @fedora @climagic

Example:
SERVICE=sshd; lsof -i -P -n | grep $SERVICE | awk '/LISTEN/ {print $9}' | uniq

To all #sysadmins

What #Linux distro's you use in your job currently?

I'm happy to be here and after thinking about attending a security test course I decided to focus on creating a #GNU #Linux #Debian #distro which is focused on #security for #sysadmins #developers #pentesters and #artists called #procyberian #ProcyberianSystemsDistribution and then now let's say #happhacking !

https://github.com/procyberian is our home for our projects ! #github

Thanks !

Fellow #sysadmins, before you upgrade those MariaDB containers https://github.com/MariaDB/mariadb-docker/issues/560

#Sysadmins

What is the secret to finding cheap/free rack space for a physical server?

so 240,000 people got laid off from #techbro companies so they could go lay down solar panels?

if this is not more reason to unionize all #software #developers, project #managers, info #architects, #sysadmins, whatever the #tech title pops into your mind?

seriously, #unionize Silicon Valley

https://techcrunch.com/2024/01/01/climate-tech-job-market-2024/

Experience a perfect blend of #stability, #innovation & #security with Leap. Get #openSUSE Leap 15.5! The OS is out and waiting for you to download & use it. Leap empowers #developers, #sysadmins and users. https://get.opensuse.org/leap/

Think you'll benefit from these tips?

Testing ChatGPT Ansible playbooks, building RHEL homelabs, and more tips for sysadmins https://www.redhat.com/sysadmin/top-sysadmin-articles-february-2023