for fedora:

sudo dnf install openssl openssl-devel
sudo ln -s /usr/lib64/libssl.so.10 /opt/viber/lib/libssl.so

see: https://bytefreaks.net/applications/viber-desktop-on-fedora-27-64bit-viber-cannot-connect-to-the-internet-openssl-error

How To Disable Suspend And Hibernation In Fedora Linux

sudo systemctl mask sleep.target suspend.target hibernate.target hybrid-sleep.target 

Created symlink /etc/systemd/system/sleep.target → /dev/null. 

Created symlink /etc/systemd/system/suspend.target → /dev/null. 

Created symlink /etc/systemd/system/hibernate.target → /dev/null. 

Created symlink /etc/systemd/system/hybrid-sleep.target → /dev/null 

Restart sudo systemctl restart systemd-logind.service or just restart your laptop

Check status 

systemctl status sleep.target suspend.target hibernate.target hybrid-sleep.target all must be in (dead stage) 

re-enable 

sudo systemctl unmask sleep.target suspend.target hibernate.target hybrid-sleep.target 

Removed /etc/systemd/system/sleep.target. 

Removed /etc/systemd/system/suspend.target. 

Removed /etc/systemd/system/hibernate.target. 

Removed /etc/systemd/system/hybrid-sleep.target. 

Restart sudo systemctl restart systemd-logind.service or just restart your laptop 

Even lid down don't want to go suspend mode 

sudo nano /etc/systemd/logind.conf 

[Login] HandleLidSwitch=ignore