Tmux Configuration
I've started to use Terminator instead of Tmux
Anyway - here is the tmux config which worked for me.
nano /root/.tmux.conf
# 0 is too far from ` ;)
set -g base-index 1
# Automatically set window title
set-window-option -g automatic-rename on
set-option -g set-titles on
#set -g default-terminal screen-256color
set -g status-keys vi
set -g history-limit 10000
setw -g mode-keys vi
setw -g mode-mouse on
setw -g monitor-activity on
bind-key v split-window -h
bind-key s split-window -v
bind-key J resize-pane -D 5
bind-key K resize-pane -U 5
bind-key H resize-pane -L 5
bind-key L resize-pane -R 5
bind-key M-j resize-pane -D
bind-key M-k resize-pane -U
bind-key M-h resize-pane -L
bind-key M-l resize-pane -R
# Vim style pane selection
bind h select-pane -L
bind j select-pane -D
bind k select-pane -U
bind l select-pane -R
# Use Alt-vim keys without prefix key to switch panes
bind -n M-h select-pane -L
bind -n M-j select-pane -D
bind -n M-k select-pane -U
bind -n M-l select-pane -R
# Use Alt-arrow keys without prefix key to switch panes
bind -n M-Left select-pane -L
bind -n M-Right select-pane -R
bind -n M-Up select-pane -U
bind -n M-Down select-pane -D
# Shift arrow to switch windows
bind -n S-Left previous-window
bind -n S-Right next-window
# No delay for escape key press
set -sg escape-time 0
# Reload tmux config
bind r source-file ~/.tmux.conf
# THEME
set -g status-bg black
set -g status-fg white
set -g window-status-current-bg white
set -g window-status-current-fg black
set -g window-status-current-attr bold
set -g status-interval 60
set -g status-left-length 30
set -g status-left '#[fg=green](#S) #(whoami)'
set -g status-right '#[fg=yellow]#(cut -d " " -f 1-3 /proc/loadavg)#[default] #[fg=white]%H:%M#[default]'