Administrations

Softether Linux Client using Bridged with Softether VPN Server

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It’s assumed that you already have a vpn server deployed in your network, created user, password and enabled bridged network during vpn server configuration. A sample snippet of VPN Server Bridge enabled is below-

So here’re the setup value-

  • On Softether Server IP- 103.146.221.30/24 and Gateway- 103.146.221.1
  • Client Server IP- 123.49.47.245/24, Gateway- 123.49.47.1 Once the server is connected to the vpn, it will be using 103.146.221.5 as bridged IP.

Let’s start.

My setup was done on Debian-10 fresh installation, should work on any linux distro though, it’s simple. The dependency packages that I needed were development tools/build-essentials and few other which were installed as below-

apt-get update
apt-get install build-essential gcc openssl apt-transport-https

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Install ONLYOFFICE Document Server with Nginx on Debian 10

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Step 1 – Install Packages Dependencies

In this first step, we will install some packages dependencies needed by the Document Server, including the RabbitMQ-server, Redis, and Nginx-extras.

Update your Debian system repository and install Document Server packages dependencies using the apt command below.

sudo apt update
sudo apt install redis-server rabbitmq-server nginx-extras gnupg2

Once all installation is complete, check the following services using the systemctl command as below.

systemctl is-enabled nginx
systemctl is-enabled rabbitmq-server
systemctl is-enabled redis-server

Now make sure all of these services are enabled and will automatically run on the system boot.

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Install Lancache on Debian 10

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Step 1: Installing Docker

The Docker installation package available in the official Debian repository may not be the latest version. To ensure we get the latest version, we’ll install Docker from the official Docker repository. To do that, we’ll add a new package source, add the GPG key from Docker to ensure the downloads are valid, and then install the package.

First, update your existing list of packages:

sudo apt update

Next, install a few prerequisite packages which let apt use packages over HTTPS:

sudo apt install apt-transport-https ca-certificates curl gnupg2 software-properties-common

Then add the GPG key for the official Docker repository to your system:

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Upgrade Debian 9 to Debian 10

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Update ALL existing installed packages

Before you upgrade your Debian version to 10, you must apply all security patches and pending upgrades to Debian 9 itself Hence, Type the following apt command or apt-get command:

sudo apt update
sudo apt upgrade
sudo apt full-upgrade
sudo apt --purge autoremove

OR

sudo apt-get update
sudo apt-get upgrade
sudo apt-get full-upgrade
sudo apt-get --purge autoremove

Reboot the Debian 9.x stretch to apply the kernel and other updates:

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Large file split and join in linux

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Let’s assume we have a large file of 102 GB and named as “vzdump-lxc-103-2021_07_19-12_05_06.tar.lzo”. We’d like to split this large file into 10GB of partial file. Let’s apply the split command as below-

split -b 102400M vzdump-lxc-103-2021_07_19-12_05_06.tar.lzo repo.

Wait for a while, the execution continues, and once over, you’ll find 11 split files altogether-

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Using multiple gateways on Windows system

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If Windows has multiple interfaces connected to several networks that use DHCP, it installs default gateways for all those interfaces.

By default, Windows sets the metric of the default gateways to the same, effectively leading to random selection of default gateway.

If you want to make Windows to select certain gateway always, you can change interface metrics for the interfaces’ configuration you don’t want to use:

  1. Go to your Network adapter properties.
  2. Select Internet Protocol v4.
  3. Click the Advanced button on General tab.
  4. Uncheck Automatic metric.
  5. Enter a number higher than 10 to the Interface metric field.
  6. The default automatic metric for interfaces is 10. The lower the metric, the higher the preference to use it.
  7. So, you have to enter metric higher than 10 for the interfaces you don’t want to use.

EDIT: These instructions are for Windows 7, XP might be different. You shouldn’t be using XP anyway.

Src: https://superuser.com/questions/735479/how-does-a-windows-computer-behave-when-it-has-multiple-default-gateways/735569

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CentOS 7 XFS disk resizing

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Couldn’t find any article that explained step by step how to resize the main disks volume in a CentOS 7 vm. In my example I started witha single disk of 8GB and expanded to 20GB. I have two partitions on disk sda

sda1 type Linux for boot
sda2 type Linux LVM for the remaining logical volumes

Space utilisation as following:

[root@vcd-c1-s1 ~]# df -h
Filesystem Size Used Avail Use% Mounted on
devtmpfs 3.9G 0 3.9G 0% /dev
tmpfs 3.9G 0 3.9G 0% /dev/shm
tmpfs 3.9G 8.8M 3.9G 1% /run
tmpfs 3.9G 0 3.9G 0% /sys/fs/cgroup
/dev/mapper/centos-root 6.2G 1.9G 4.4G 31% /
/dev/sda1 1014M 179M 836M 18% /boot
tmpfs 783M 0 783M 0% /run/user/0

We basically need to:

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