Pipe With Powershell

With Linux what we can do:

Ssh Tunneling Explained

Excellent post of https://goteleport.com/blog/ssh-tunneling-explained/

Freebsd Command

sysctl command to find out how much RAM is installed on a FreeBSD

$ sysctl hw.physmem
$ sysctl hw | egrep 'hw.(phys|user|real)'

Or ·$ grep memory /var/run/dmesg.boot·

Direct Root Non Root Login

Network Trouble Shooting Tips

dump packets go in and out to a NIC with specific MAC

How To Decide Host Is Virtual Or Physical

For VMWare stuff:

Unpack Repack Initial Ramdisk

Unpack initial ramdisk in a new folder

Create Pxe Server

Prepare software packages

Powerful Socat

The socat command shuffles data between two locations. One way to think of socat is as the cat command which transfers data between two locations rather than from a file to standard output. I say that socat works on two locations rather than two files because you can grab data from a network socket, named pipe, or even setup a general virtual network interface as one end point.

Mount Qcow2

How to mount a qcow2 disk image

Netlink Post

An good write-up:

Qcow2 Backing File

Assume that you already have your base image as a qcow2 - Ubuntu cloud image for example. Below command can create 2 images for 2 guest machines basing same image.

Predictable Network Interface Names

Hostname User Account

Distro with systemd

Linked List In Kernel

Canonical list

Cli Tips

find

Port Forwarding

NAT in iptables. So that, all the packets coming to 192.168.12.87 and port 80 will be forwarded to 192.168.12.77 port 80

Netplan Vs Network

Ubuntu Cloud Image On Vmware

I always look to update the Linux virtual machine running on top of VMware workstation on Window 10 Desktop. Where Ubuntu has its daily build of cloud images published at their website. Natrually it is ideal for me to get familar how it is working and start working with it.