JoLeKing

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Linux - NETNS

#!/bin/bash
ip netns add instance1
ip link set enp5s0 netns instance1
ip netns exec instance1 ip link set enp5s0 up
ip netns exec instance1 ip -4 addr add 192.168.1.63/31 dev enp5s0
ip netns exec instance1 ip -4 route add 0.0.0.0/0 via 192.168.1.62 dev enp5s0
ip netns exec instance1 ip -6 addr add 2001:db8:742:c01:151:8888:0:a/96 dev enp5s0
ip netns exec instance1 ip -6 route add ::/0 via 2001:db8:742:c01:151:8888:0:1 dev enp5s0
mkdir -p /etc/netns/instance1
echo -e "nameserver 8.8.8.8\nnameserver 8.8.4.4" | sudo tee /etc/netns/instance1/resolv.conf > /dev/null

ip netns add instance2
ip link set enp6s0 netns instance2
ip netns exec instance2 ip link set enp6s0 up
ip netns exec instance2 ip -4 addr add 192.168.1.65/31 dev enp6s0
ip netns exec instance2 ip -4 route add 0.0.0.0/0 via 192.168.1.64 dev enp6s0
ip netns exec instance2 ip -6 addr add 2001:db8:742:c01:152:8888:0:a/96 dev enp6s0
ip netns exec instance2 ip -6 route add ::/0 via 2001:db8:742:c01:152:8888:0:1 dev enp6s0
mkdir -p /etc/netns/instance2
echo -e "nameserver 8.8.8.8\nnameserver 8.8.4.4" | sudo tee /etc/netns/instance2/resolv.conf > /dev/null


ip netns add instance3
ip link set enp7s0 netns instance3
ip netns exec instance3 ip link set enp7s0 up
ip netns exec instance3 ip -4 addr add 192.168.1.67/31 dev enp7s0
ip netns exec instance3 ip -4 route add 0.0.0.0/0 via 192.168.1.66 dev enp7s0
ip netns exec instance3 ip -6 addr add 2001:db8:742:c01:153:8888:0:a/96 dev enp7s0
ip netns exec instance3 ip -6 route add ::/0 via 2001:db8:742:c01:153:8888:0:1 dev enp7s0
mkdir -p /etc/netns/instance3
echo -e "nameserver 8.8.8.8\nnameserver 8.8.4.4" | sudo tee /etc/netns/instance3/resolv.conf > /dev/null

show-netns-settings.sh

#!/bin/bash
echo " "
echo "#################instance1#################"
sudo ip netns exec instance1 ip link show
echo " "
sudo ip netns exec instance1 ip -4 addr show
echo " "
sudo ip netns exec instance1 ip -4 route show
echo " "
sudo ip netns exec instance1 ip -6 addr show
echo " "
sudo ip netns exec instance1 ip -6 route show
echo "################################################"
echo " "
echo " "
echo "#################instance2#################"
sudo ip netns exec instance2 ip link show
echo " "
sudo ip netns exec instance2 ip -4 addr show
echo " "
sudo ip netns exec instance2 ip -4 route show
echo " "
sudo ip netns exec instance2 ip -6 addr show
echo " "
sudo ip netns exec instance2 ip -6 route show
echo "################################################"
echo " "
echo " "
echo "#################instance3#################"
sudo ip netns exec instance3 ip link show
echo " "
sudo ip netns exec instance3 ip -4 addr show
echo " "
sudo ip netns exec instance3 ip -4 route show
echo " "
sudo ip netns exec instance3 ip -6 addr show
echo " "
sudo ip netns exec instance3 ip -6 route show
echo "################################################"

netns-firefox.sh

#####Note that it isn't compatible with Firefox snap version. The firefox-esr must be installed.#####
sudo /usr/sbin/ip netns exec instance1 env http_proxy="" https_proxy="" \
sudo -u $USER \
env DISPLAY=$DISPLAY XAUTHORITY=$XAUTHORITY firefox-esr --new-instance --profile $HOME/.mozilla/instance1

sudo /usr/sbin/ip netns exec instance2 env http_proxy="" https_proxy="" \
sudo -u $USER \
env DISPLAY=$DISPLAY XAUTHORITY=$XAUTHORITY firefox-esr --new-instance --profile $HOME/.mozilla/instance2

sudo /usr/sbin/ip netns exec instance3 env http_proxy="" https_proxy="" \
sudo -u $USER \
env DISPLAY=$DISPLAY XAUTHORITY=$XAUTHORITY firefox-esr --new-instance --profile $HOME/.mozilla/instance3

netns-speedtest.sh

#!/bin/bash
sudo /usr/sbin/ip netns exec instance1 env http_proxy="" https_proxy="" \
sudo -u $USER \ speedtest-cli

sudo /usr/sbin/ip netns exec instance2 env http_proxy="" https_proxy="" \
sudo -u $USER \ speedtest-cli

sudo /usr/sbin/ip netns exec instance3 env http_proxy="" https_proxy="" \
sudo -u $USER \ speedtest-cli