Things I know I'll forget sooner or later…
Add the following entries to /etc/dnf/dnf.conf
proxy=http://<proxy server IP>:<port number> proxy_username=<user name> proxy_password=<password>
For a more complete DNF Command Reference, see the
DNF Documentation at readthedocs.org.
With the new version of Gnome 3 on Fedora 21, previous methods of disabling the user list in the gdm login no longer seems to work.
Now you have to edit configuration database with the gsettings command as the gdm user.
Type in the following command to set the disable-user-list option to true in the gdm user’s copy of the dconf database
sudo -u gdm gsettings set org.gnome.login-screen disable-user-list true
Follow that up with a restart of the gdm service to apply the new setting.
systemctl restart gdm
sudo yum -y install gcc dkms kernel-devel kernel-headers
Host+ D key combination or click on the Devices menu and choose the Install Guest Additions… option.
Query for the installed kernel versions
rpm -q kernel
Current running version
uname -r
Clean up old kernels versions leaving count number of kernel(s)
sudo package-cleanup --oldkernels --count=1
Note: DNF was introduced in Fedora 18, and is now the default package manager for Fedora 22. So we are bidding goodbye to YUM.
Please check out the following post on DNF.
DNF Behind a Proxy that Requires Authentication
Add the following entries to /etc/yum.conf
proxy=http://<proxy server IP>:<port number> proxy_username=<user name> proxy_password=<password>
