sudo: No protocol specified in Ubuntu 17.10
2170
Why don't gksu/gksudo or launching a graphical application with sudo work with Wayland?
7317
how to: Please sudo, do _not_ setup any environment, especially $SUDO_USER?
97359
What is difference between pbrun and sudo command?
11590
How do I run wireshark, with root-privileges?
14750
How to Fix "Read-only file system" error when I run something as sudo and try to make a folder/file?
12861
Why does alias in /etc/bash.bashrc not apply to sudo?
28333
Why can't sudo redirect stdout to /etc/file, but sudo 'nano' or 'cp' can?
80258
Unable to open any graphical app with "sudo"
111046
sudo: /var/lib/sudo/navneet writable by non-owner (040777), should be mode 0700
92318
How to run sudo command with no password?
45048
Getting sudo to work for an alias
27769
Problem with IPv6 sudo apt-get update/upgrade
100480
synaptic No protocol specified!! error
49830
Is `sudo pip install` still a broken practice?
124795
sudo does not ask for password
21184
Running "sudo apt-get update" returns connection errors
4746
How to solve "permission denied" when using sudo with redirection in Bash?