How to add a static route to force specific traffic to go through a specific NIC

Posted on January 24, 2023 by SoCRaT

route -p add 10.152.212.0 mask 255.255.255.0 10.224.5.1

This will permanently (-p) add a static route so that any request going to an IP in the 10.152.212.0/24 (255.255.255.0) network goes through the network gateway 10.224.5.1 of the other network card

In case you need only one specifc IP, use the exact IP instead of 10.152.212.0 and change the mask to 255.255.255.255 or remove it completely, e.g.

route -p add 10.152.212.5 mask 255.255.255.255 10.224.5.1

Notes:

  • To delete a route, use the command route delete
  • To avoid making it permanent, remove the -p

That’s it, Enjoy!

Sources:

https://www.howtogeek.com/22/adding-a-tcpip-route-to-the-windows-routing-table/

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How to convert vmware vmdk disks to a different format using vmware workstation

Posted on October 11, 2022 by SoCRaT

From inside “C:\Program Files (x86)\VMware\VMware Workstation” (Windows default installation location), or wherever your installation is on Linux or Windows:

vmware-vdiskmanager.exe -r 'source.vmdk' -t 5 'destination.vmdk_stream.vmdk'

‘-t 5’ is where you specify the stream-optimized format for example, here are all available types:

0 : single growable virtual disk
1 : growable virtual disk split into multiple files
2 : preallocated virtual disk
3 : preallocated virtual disk split into multiple files
4 : preallocated ESX-type virtual disk
5 : compressed disk optimized for streaming
6 : thin provisioned virtual disk – ESX 3.x and above

Enjoy!

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How to change the web server identification string of your OpenVPN AS Server on Ubuntu 22.04

Posted on July 31, 2022 by SoCRaT

The default web server identification string of your OpenVPN Server can be one way to identify it in automated vulnerability scanners such as nmap.

To change it to an arbitrary value to reduce the chance of being identified by vulnerability scanners, you can do the following (as root or sudoer):

cd /usr/local/openvpn_as/scripts
./sacli --key "cs.web_server_name" --value "BLABLABLA" ConfigPut
./sacli start

Source: https://openvpn.net/vpn-server-resources/managing-settings-for-the-web-services-from-the-command-line/

That’s it, Enjoy!

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How to enable/disable a network interface on Windows from command line

Posted on July 31, 2022 by SoCRaT

Assuming “Ethernet” is the name of the network connection you need to enable or disable:

To enable:

netsh interface set interface "Ethernet" enable

To disable:

netsh interface set interface "Ethernet" disable

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Search for files with certain size and extension

Posted on December 29, 2021 by SoCRaT

I was looking for a large PDF file that was above 100 MB. The file was inside thousands of other files and folders, so I used this command to find it:

find . -type f -size +100M | grep -i pdf

The above simply used the find utility and specified that this is a file and that file is > 100 MB, then I used grep to filter PDF files, that’s it!

Enjoy!

Sources:
https://ostechnix.com/find-files-bigger-smaller-x-size-linux/

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