This is a quick guide to mounting a qcow2 disk images on your host server. This is useful to reset passwords, edit files, or recover something without the virtual machine running.
Step 1 - Enable NBD on the Host
modprobe nbd max_part=8
Diego Arias diego021
nerdalert
/ Netfilter-IPTables-Diagrams.md
Last active
April 29, 2025 05:23
Linux NetFilter, IP Tables and Conntrack Diagrams
1) Filter Table
Filter is default table for iptables. So, if you don’t define you own table, you’ll be using filter table. Iptables’s filter table has the following built-in chains.
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| uname -r | |
| sudo su | |
| # useradd builder | |
| # groupadd builder | |
| cd /home/centos | |
| # Get Source Code | |
| wget http://vault.centos.org/7.2.1511/updates/Source/SPackages/kernel-3.10.0-327.28.3.el7.src.rpm | |
| rpm -ivh kernel-3.10.0-327.28.3.el7.src.rpm | |
| # Build Preparation |