taslabs-net

PVE 9.1.1 TB4 + Ceph Guide

Updated as of: 2025-11-19 - Network architecture corrections applied

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Network Architecture (UPDATED)

Cluster Management Network: 10.11.11.0/24 (vmbr0)

• Primary cluster communication and SSH access

JimiSweden

problem

When trying to insert an image you might get the warning "Image too big" when selecting "Actual size" in the insert dialog

Soulution

is to change the default settings.

note: this is tested on Windows, probably similar in Mac - check out the linke here if you are using Mac https://gist.github.com/cellularmitosis/e5e7d1517939b98418a58cdd8595dd8c

open Draw.io app ()

• in menu "Extras" , select "Configuration".

flungo

#!/bin/bash
for d in $(find /sys/kernel/iommu_groups/ -type l | sort -n -k5 -t/); do 
    n=${d#*/iommu_groups/*}; n=${n%%/*}
    printf 'IOMMU Group %s ' "$n"
    lspci -nns "${d##*/}"
done;

tuxfight3r

##TCP FLAGS##

Unskilled Attackers Pester Real Security Folks
==============================================
                     TCPDUMP FLAGS
Unskilled =  URG  =  (Not Displayed in Flag Field, Displayed elsewhere) 
Attackers =  ACK  =  (Not Displayed in Flag Field, Displayed elsewhere)
Pester    =  PSH  =  [P] (Push Data)
Real      =  RST  =  [R] (Reset Connection)
Security  =  SYN  =  [S] (Start Connection)