Static IP configuration in Debian 12
To configure a static on a Debian 12 server, open up the /etc/network/interfaces file and configure it like the example below. # […]
Category: Network
Issues when Pihole is a DHCP client
In case your Pihole receives some, or all of it’s configuration from a DHCP server, it may inherit a setting called search […]
Example config for a dhcp client with a static address for Ubuntu 22.04 on a Raspberry Pi 4
This is an example config for the file located in: /etc/netplan/ network:     ethernets:         eth0:           addresses:             - ”fd00::2/64″           dhcp4: true           dhcp6: true           nameservers:               addresses: [“2620:fe::fe”,9.9.9.9]           optional: true     version: 2 […]
Firefox 114+ and DNS over HTTPS
Be aware that Firefox in Version 114 (or higher may automatically switch on DoH (DNS over HTTPS). Go the the options menu […]
How to query the (wireless) connection name and store it in a variable, Kubuntu 22.04 LTS
The below code will query all connections and use grep to find the line of text which includes the “GENERAL.CONNECTION”. That line […]
Manually set the mtu size on a modern Linux distro
If you need to change the mtu, you can do so without a permanent change. The below command will change the value […]
Ping an entire subnet using PowerShell
Open PowerShell ISE and write code like this: for($i=1;$i -le 254;$i++){   ping -n 1 192.168.0.$i  }
Simplified script to restart a service
How to do it: #!/bin/bash ping_var=$(ping -6 -c1 vpn.example.com | grep “1 received”) if [[ $ping_var == *”1 received”* ]]; then sleep […]
Change outgoing connection with ip6tables (IPv6 address change)
ip6tables -t nat -A OUTPUT -p udp -d fe80::1111:2222:3333:4444 –dport 53 -j DNAT –to-destination [fd80::1]:53
Port forwarding unter Ubuntu 22.04 einrichten
Wichtige Hinweise: Dieses Material ist für erfahrene Anwender und Admins gedacht. Außerdem sollte man als Admin angemeldet sein, oder sudo verwenden dürfen. […]
