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How to "undrain" slurm nodes in drain state - Stack Overflow
Found an approach, enter scontrol interpreter (in command line type scontrol) and then

scontrol: update NodeName=node10 State=DOWN Reason="undraining"
scontrol: update NodeName=node10 State=RESUME
work  slurm  cli  linux  sysadmin 
yesterday by cschrader
SQWARQ | Security Utilities for your Mac
Who are you?
My name is Phil Stokes. I’m basically a one-man-band independent software developer, troubleshooter and blogger (over on my other site, applehelpwriter.com). Either here or elsewhere, I tend to slip into referring to Sqwarq as a ‘we’, as in ‘what we do is make troubleshooting software’, but really it’s mostly just me. I do get a helping hand from a few (largely) unpaid (except in beer) but richly-thanked volunteers with marketing, design and light admin duties, but if you’re ever conversing with ‘someone from Sqwarq’, it’ll be me. “The buck stops here” simply because it’s got nowhere else to go!

What do you do?
I make troubleshooting software. I’ve been doing it since 2013, and I’ve been troubleshooting macs since 2009. I started learning my craft on Apple Support Communities back when, and learned pretty much everything I know about Apple macs by spending anything between 2 and 12 hours-a-day voluntarily ‘manning the boards’ for nearly five years. ASC (as it is widely known) changed format sometime around 2014, and I moved away to focus on developing software solutions to the problems I saw users repeatedly encountering with their macs.

Are you a registered Apple developer?
Yes, I am. All my apps are codesigned with my Apple Developer signature, and if you have your mac on default Gatekeeper security settings, all will pass Gatekeeper when you download and install them.

Are your apps safe?
I’m glad you asked. Because my apps aren’t sandboxed, I take the extra precaution of having them run only in ‘user space’. What that means is that my apps, unlike almost all other security and troubleshooting software, do not require Admin (aka ‘root’) privileges to install. That’s an extra level of safety for users because it means that even if an attacker were to hijack my code, they couldn’t gain access to root privileges to take over your system. This is not true of almost all other security/troubleshooting software that you’ll find for macOS (which, of course, also isn’t sandboxed), and it’s one of the main philosophical and – perhaps more importantly – practical differences in my approach compared to other developers in the same field.
macOS  mac  apps  Utility  free  sysadmin 
yesterday by abetancort
Extremely Fast MySQL Backup and Restore Using Mydumper/Myloader
Mydumper and Myloader are utility software programs that allow you to perform extremely fast and reliable multi-threaded MySQL backup and restore which is…
mysql  sysadmin  backup  hcb 
yesterday by lenciel
How to install Caddy on Ubuntu 16.04 – LinuxHostSupport.com Blog
/usr/local/bin/caddy -log stdout -agree=true -conf=/etc/caddy/Caddyfile -root=/var/tmp
caddy  sysadmin 
yesterday by dustinromey
The USE Method
The Utilization Saturation and Errors (USE) Method is a methodology for analyzing the performance of any system. It directs the construction of a checklist, which for server analysis can be used for quickly identifying resource bottlenecks or errors. It begins by posing questions, and then seeks answers, instead of beginning with given metrics (partial answers) and trying to work backwards.

The resulting USE Method-derived checklists for different operating systems are listed on the left navigation panel (Linux, Solaris, etc). You can customize these for your environment, adding additional tools that your site uses. There is also the Rosetta Stone of Performance Checklists, automatically generated from some of these. Performance monitoring products can make the USE method easier to follow by providing its metrics via an easy-to-use interface.
sysadmin  performance  troubleshooting  debugging  checklist 
2 days ago by cdzombak

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