To customize your VPS SSH add any of these codes to your /root/.bash_profile file
export PS1='\[\033[1;36m\][\u@\H]:\[\033[1;32m\][\@] \[\033[0;37m\][\w] # \[\033[0m\]'
export PS1="[\[\e[37m\]\u@\h \[\e[37m\]\w \[\e[37m\]]# "
$export PS1="\[\e[37m\]\u@\h \[\e[37m\]\W \[\e[37m\]#"
export PS1='\[\033[1;36m\]$(whoami)@$(hostname): \[\033[0;37m\[[$(pwd)] \[\033[0;36m\[\@] \[\033[0m\]'
export PS1='\[\033[1;36m\][\u@\H]:\[\033[1;32m\][\@] \[\033[0;37m\][\w] # \[\033[0m\]'