Working with kernel network namespaces created by Docker

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To work with kernel network namespaces created by Docker create necessary symbolic link: ln -s /var/run/docker/netns  /var/run/netns List network namespaces: ip netns list Result will be similar to: # ip netns list 644c14147ad2 (id: 2) bb230cf5f65f (id: 1) e2772d19bfd0 (id: 0) Execute command inside network namespace: ip netns exec <namespace> <command> Example - listing network… Continue reading Working with kernel network namespaces created by Docker

Prevent battery drain during suspend mode on Linux

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cat /sys/power/mem_sleep will return "s2idle" and "deep" values, value surrounded by square brackets will show which mode is currently activated. Probably when you observer battery drain during suspend, you will see "s2idle" highlighted. To change it do deep sleep mode use command: echo deep > /sys/power/mem_sleep To make change permanent add the following to your… Continue reading Prevent battery drain during suspend mode on Linux

Display Git branch in Bash prompt

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To display Git branch in Bash prompt append ~/.bashrc file with following content: parse_git_branch() {      git branch 2> /dev/null | sed -e '/^[^*]/d' -e 's/* \(.*\)/(\1)/' } export PS1="\[\e[92m\]\u@\h \[\e[94m\]\w \[\e[95m\]\$(parse_git_branch)\[\e[00m\]$ "