Transferring hundreds of screenshots, webcam recordings, keystroke logs, and audio recordings between your VPS and a local Kali computer can be tricky. Services like Dropbox do not always have the best privacy policies and suffer from privacy breaches like any other website. To mitigate these risks, we use a secure, open source and decentralized alternative.
Syncthing, created by Jakob Borg is a cross-platform, private, lightweight file synchronization (Dropbox). Alternative. With Syncthing, your data is not stored anywhere else than on your computer. There is no central server that could be compromised (legal or illegal). Essentially, they remove the middleman (Dropbox) and synchronize sensitive files directly between your computers.
Using Syncting is not limited to this scenario. Between a local Windows machine and a MacBook, we can securely sync browser bookmarks, password manager files, operating system backups, media, and more.
: Installing Syncting in Kali & Ubuntu
The installation process for Kali (19659005) Debian) and an Ubuntu VPS are about the same. The only variation is in step 2, where I make a note of the difference. Otherwise, Kali and Ubuntu users can literally follow.
First, make sure that the package apt-transport-https is installed with the following command: apt-get . This will allow you to safely retrieve packages and updates from Syncthing developers.
apt-get update && apt-get install apt-transport-https -V Hit: 2 http://archive-7.kali.org/kali kali-rolling InRelease Read package lists ... Done Create dependency structure Read status information ... Done apt-transport-https is already the latest version (1.6.3). 0 updated, 0 reinstalled, 0 removed, and 406 not updated
Then import the synchronization PGP keys. These are used to securely sign the packets and prevent attackers from manipulating the syncting packets.
curl -s https://syncthing.net/release-key.txt | add sudo apt-key - OK
Add the syncthing repository to your APT sources using the command echo
echo # htt https://apt.syncthing.net/ synchhing stable & # 39; >> / etc / apt / sources add .list
Kali's repositories provide an older version of Syncthing. To ensure that the syncthing.net packages are always used when installing and updating Syncthing, create the following pin priority in the /etc/apt/preferences.d/ directory. Copy the entire command to a terminal and press Enter .
echo & # 39; package: * Pin: Origin apt.syncthing.net Pin-Priority: 1001 & # 39;> /etc/apt/preferences.d/syncthing
Last Update APT and Install Syncthing
apt-get update && apt-get install synchhing 1 hit: 1 https://apt.syncthing.net synchronize in InRelease 2 results: 2 http://kali.mirror.garr.it/mirrors/kali kali-rolling InRelease Read 3 package lists ... Done Read 4 package lists ... Done 5 Build up a dependency structure 6 Read status information ... Done 7 The following NEW packages will be installed: 8 Synchronization (0.14.48) 9 0 updated, 1 reinstalled, 0 remove and 406 not updated. 10 Need 6,824 kB of archives. 11 After this process, 15.7 MB of additional memory is allocated. 12 Obtained: 1 https://apt.syncthing.net synthing / stable amd64 synthing amd64 0.14.48 [6,824 kB] 13 recalled 6,824 kB in 15s (459 kB / s) 14 Select the previously unselected packet sync. 15 (Reading the database ... 183744 Files and directories are currently installed.) 16 Preparing to unpack ... / syncthing_0.14.48_amd64.deb ... 17 Unpacking (0.14.48) ... 18 Setting up synchronization (0.14.48) ... 19 Processing Triggers for man-db (2.8.3-2) ...
Note: In line 12, the syncthing package was downloaded from the synching.net domain and not from a potash mirror. This means that Syncting has been successfully installed.
Step 2: Start Synchronization
After installing Syncthing, we can start the background process with systemctl
systemctl --user synching.service  This command does not produce any output. Navigate to http://127.0.0.1:8384/ using a web browser to view the Synchronization interface in Kali.
Here the installation process varies slightly. Users attempting to access their VPS on port 8384 must take an extra step. Open a new terminal and SSH in the VPS with argument -L to enable port forwarding.
ssh -L 9999: 127.0.0.1: 8384 -p 22 users @ YOUR-VPS-IP-ADDRESS
Then open a new browser tab on your local computer and navigate to http: //127.0 .0.1: 9999 . This essentially creates a secure tunnel that allows remote users to access a service (Syncthing) running on the VPS loopback address (127.0.0.1).
This is what you need to install Syncthing in a Kali and Ubuntu VPS.
Step 3: Configure Synchronization
After we install Syncting and run it on our Kali and VPS machines, we can start configuring the settings. Before we can synchronize directories, we first need to connect the two syncthing servers together.
From the VPS, navigate to the Actions menu and select Show ID. Copy the ID with 56 characters to your clipboard
On the local potash machine, click the "Add Remote Device" button to the device add open] menu. Insert the device ID, name the device, manually enter your VPS IP address, and select the Default Folder option at the bottom. When entering your VPS IP address, be sure to attach port : 22000 to the IP address - this is the default sync port.
Press the "Save" button for the settings to take effect. After a few seconds, Syncting running on the VPS will indicate that a new device is trying to connect. Click the "Add Device" button to accept it.
That's it! All files stored in / root / Sync / in Kali or / home /
It may be desirable for Syncting to start automatically when Kali or VPS is turned on. Create a new "syncthing.service" file in the directory / etc / systemd / system with nano .
[Unit] Description = Synchhting - Open Source continuous file synchronization Documentation = man: synchhting (1) [Service] ExecStart = / usr / bin / synthing -no-browser-no-restart -logflags = 0 Restart = at failure SuccessExitStatus = 3 4 RestartForceExitStatus = 3 4 [Install] WantedBy = default.target
Use the systemctl command to enable syncing on every startup.
systemctl --user enables synchhting Created symlink /root/.config/systemd/user/default.target.wants/syncthing.service → /usr/lib/systemd/user/syncthing.service.
Add Devices and Synchronize Multiple Directories (Conclusion)
Syncting is a secure and private alternative to proprietary file synchronization solutions. It might be a bit intimidating at first, but with each added device and directory, syncthing becomes more useful. We can sync metasploit loot directories, bookmarks between devices, password manager files, confidential work files, encrypted backups and more.
Readers are encouraged to take and explore all syncthings settings. The documentation and support forum are great places for users who have questions or need help. Readers who are looking for a technical understanding of how Syncting works can be found on the developer's blog.