PROBLEM: I would like to change root password on a fresh new install. SOLUTION: Simple one command! Run command below to switch to root:
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user@server:~# sudo -i |
Change password by typing:
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root@server:~# passwd |
And type new root password. Done!
PROBLEM: I do not need swap. SOLUTION: One command swap disable. [?] What is swap? https://www.linux.com/news/all-about-linux-swap-space Run:
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root@server:~# swapoff -a |
And remove swap entry from fstab (the second line only!) And reboot the system.
PROBLEM: I would like to determine network bandwidth between two devices. SOLUTION: Use very simple test tool – iperf! [?] What is bandwidth? https://searchnetworking.techtarget.com/definition/bandwidth First of all, download iperf from official website! It works on Windows, Linux, OS X or Android. I will use Windows on this case. Start cmd (as the admin, just to be sure) and navigate to iperf directory. If you do not know your IP address, just open new cmd and run ipconfig. If you want to run…