February 2024 - WLUG - wlug.mailman3.com

(old?) Dell power-edge rackserver power supplies
by Michael Voorhis 26 Feb '24

26 Feb '24

Hello all, I have a number of spare power supplies for old Dell power-edge rackservers. If anyone has an old rack server and they're looking for spare parts to extend its lifespan, I've got the following dell power supplies. Listed are # I have, the server they supposedly work with, and the power-supply model number: 6x pe-1950 PS, mod d670p 4x pe-r415 PS, mod d500e 2x pe-r710 PS, mod a870p 2x pe-???? PS, mod d750p. 2x pe-r200 PS, mod ?ps5341? 1x pe-r210-ii PS, mod. L250e Take them if you're going to use them. Please don't take them just re-sell 'em... --MCV.

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Zoom Safety-Privacy-Security Question on Ubuntu
by THE HAMMER 23 Feb '24

23 Feb '24

Hey Gang, Is the Zoom meeting client a relatively safe thing to download unto a machine running Ubuntu? I thought I should ask here, as googling will gives me different responses. Thanks Ron

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Reminder: WLUG Meeting tonight: Topic ProxMox / Turning Pi 2
by Tim Keller 16 Feb '24

16 Feb '24

Hey Everybody! We've got a meeting tonight! Time: 7pm Date: February 8th, 2024 Location: Technocopia, 44 Portland St. Worcester MA Virtual Location: https://meet.jit.si/WlugMA For a topics, We've got two. Topic #1: Turing Pi 2 hardware Wlug member Zori Babroudi recently bought a Turning Pi 2 and a bunch of Pi and Rocks compute modules. Currently, it's a work in progress, but eventually once things are totally working on it, I'd like to show it off in its full glory. But in the meantime, we can marvel at the hardware. Ultimately, the plan is to run k8s on it and do some LLM based AI stuff as well. Topic #2: ProxMox With BroadCom's purchase and destruction of VMware, many of us are scrambling to look for alternatives to VMware Esxi. One great contender is ProxMox. It's a debian based distro that's focused on providing a great interface to manage vms running on kvm. It also has great support for video card pass through (something I know Brandon is *very* interested in). I've got a 3 node proxmox cluster that I will show off. John Stoffel has also been experimenting with it as well so both of us can talk about the good/bad/ugly of it. As usual, the conversation will be lively and focused around linux, FOSS, fair use and who knows what! Afterwards we'll head off for some dinner and keep the conversation going! I hope to see you there! Later, Tim. -- I am leery of the allegiances of any politician who refers to their constituents as "consumers".

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Hey Everybody! WLUG Meeting this week!
by Tim Keller 08 Feb '24

08 Feb '24

Hey Everybody! We've got a WLUG meeting on the 8th! I know weirdly early in the month because the 1st landed on a Thursday! If things go well, I *might* have a Pi cluster using compute cards in it! I'll keep you all posted! As for the meeting details: Time: 7pm Date: 2/8/2024 Location: Techncopia Thanks, Tim. -- I am leery of the allegiances of any politician who refers to their constituents as "consumers".

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Firewalld/iptables/nftables question
by Patrick McEvilly 08 Feb '24

08 Feb '24

All First off, I’m in way over my head. $dayjob we have a redhat 8 box. We are looking to take in syslog messages and sent them out to one/two different IP addresses. We tried using https://github.com/sleinen/samplicator and while it works perfectly and a one banana job to setup, we seem to be dropping a significant amount of traffic on the box. At least 10% of the logs are missing and we have not loaded up the system yet. We tuned out the network buffers and added 25MB of memory without any improvement. https://github.com/sleinen/samplicator/issues/72 Seems at a high rate of logs (which I think we would fall under) there seems to be some issues. We looked at this option - https://zapier.com/engineering/iptables-replication/ Redhat 8 seems to be using firewalld and backended with nfttables so we can’t directly use this method so we tried this. firewall-cmd --permanent --direct --add-rule ipv4 mangle PREROUTING 0 -i ens192 -p udp --dport 514 -j TEE --gateway 127.0.0.1 firewall-cmd --permanent --direct --add-rule ipv4 nat PREROUTING 1 -i ens192 -p udp --dport 514 -j DNAT --to-destination 10.137.241.79:514 firewall-cmd –reload With no luck, packets are not getting sent to 10.137.241.79. When it works with samplicator this is what we get. 11:53:04.382233 IP 10.240.136.4.24277 > 10.240.1.1.syslog: SYSLOG local7.notice, length: 670 11:53:04.382408 IP 10.240.136.4.24277 > 10.137.241.79.syslog: SYSLOG local7.notice, length: 697 sysctl net.ipv4.ip_forward net.ipv4.ip_forward = 1 IP Forwarding is enabled. I’m not at all familiar with any of this and cutting and pasting from the internet and chatgpt has come up empty. Anyone have any suggestions on what we are doing wrong? Patrick

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3 million smart toothbrushes were just used in a DDoS attack. Really
by Tim Keller 07 Feb '24

07 Feb '24

My favorite part of the story.. "While the details are scarce, we know that the compromised toothbrushes were running Java." We are officially living in the dumbest time line. My only hope is that the servers at the far end of that DDOS attack at least had a minty smell to them.. Tim. -- I am leery of the allegiances of any politician who refers to their constituents as "consumers".

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