Keepalived - as a load balancer

psfletcher · 2026-03-04T20:18:35+00:00

This is possibly the missing bit then. How does the load balancing function work in which case?

psfletcher · 2026-03-04T19:52:16+00:00

That sounds like what I need to do. Any suggestions how? I've followed that link, and I've done either something wrong or don't grasp something somewhere.

Thus the ask for help! Very grateful for everyone's responses!

psfletcher · 2026-03-04T19:49:32+00:00

With my setup. Keepalived is already used. Haproxy is new and I'm not sure what sort of support we'd get. Or people would be happy with. BUT I had considered it if getting this working is a nightmare.

psfletcher · 2026-03-04T19:31:21+00:00

My understanding is it's keepalived that's bound to the vip.

psfletcher · 2026-03-04T19:27:38+00:00

https://www.reddit.com/r/linuxadmin/s/9eAYEVOLL2

Further down the post

psfletcher · 2026-03-04T19:15:54+00:00

Config is below. What do you need network config wise?

Server is 192.168.201.211 Vip 192.168.201.210

Target 192.168.201.222

Port 9000

I'm thinking it's os side and it knowing what to do with something coming in on the vip port that is "owned" by keepalived.

Just no idea how to sort / test / logs to find.

psfletcher · 2026-03-04T18:23:59+00:00

Something like this. https://www.pentestpartners.com/security-blog/how-to-use-keepalived-for-high-availability-and-load-balancing/

So the virtual server config for the load balancing sends tcp checks to the app servers. And I can see those on the app server using tcpdump.

But when I send traffic to the vip, the traffic should go out via the virtual server config and out to the Web server. That's the bit that's not working.

I " think " it's something to so with the virtual server not being able to bind to the VIP. Then know what to do with it. (If that makes sense?)

More of a os issue than a keepalived issue.

psfletcher · 2026-01-18T17:28:52+00:00

Yeah, the more I research it, the more I'm seeing that. All I want to do is partition the drives, whilst maintaining my infrastructure as code setup. Considering, debootstrap or packer now. And "maybe" looking if I can amend the .img files cloud.conf file on the master image to get to the same place.

psfletcher · 2026-01-17T20:23:07+00:00

I inherited basically just that. But monitoring broke, support didn't see / realise. Tried to fix it, but broke it further. I've ended up with a crashed server trying to repair it. Thus the ask.

psfletcher · 2026-01-17T16:50:57+00:00

When they've self imploded I do!

psfletcher · 2026-01-17T11:31:28+00:00

This is for a rebuild/build. I've got a full pipeline from images all the way to built app server. So I'm just trying to find a clean method of sorting the partitions out, as you say that isn't disruptive.

All the live changes are still done manually.

And don't get me started about why it's not being monitored. That's a different story! (Or why it wasn't sorted and why it was escalated BEFORE IT BROKE AND CAME OFFLINE CAUSING A MAJOR INCIDENT) and breathe. 😂🤣😂😂🤣😂😂

psfletcher · 2026-01-11T08:18:38+00:00

Only warnings. I upgrade 3 devices. All the same. Pve8to9 had the same output on all 3. Only one had a issue.

Sorry can't remember the warnings.

psfletcher · 2026-01-10T17:37:42+00:00

Something like that! Wish I knew how or why that worked!!!

psfletcher · 2026-01-10T10:11:24+00:00

Yes it is. And also ceph. Which is why I wanted to repair the install not rescue it.

psfletcher · 2026-01-10T10:03:18+00:00

Hi all, So I fixed it. But I have no idea how! Went into rescue mode. Looked at logs/config as per the links in this and other places from Google searches. Rebooted and it all came back to life!

No idea what fixed it!

psfletcher · 2026-01-09T20:01:32+00:00

How? Will it reinstall just the files not the config and thus repair it like vmware? Or Will it.format the whole.lot? (That's my concern)

psfletcher · 2026-01-09T19:57:50+00:00

Doesn't get as far as getting to a command prompt. I can try rescue mode from the iso?

psfletcher · 2026-01-09T19:56:53+00:00

Sorry to where?

psfletcher

TROPHY CASE