post_install() {
    systemctl daemon-reload &> /dev/null || true
    systemctl restart pritunl-client &> /dev/null || true
    systemctl enable pritunl-client &> /dev/null || true
}
post_upgrade() {
    systemctl daemon-reload &> /dev/null || true
    systemctl restart pritunl-client &> /dev/null || true
    systemctl enable pritunl-client &> /dev/null || true
}
pre_remove() {
    systemctl daemon-reload &> /dev/null || true
    systemctl stop pritunl-client &> /dev/null || true
    systemctl disable pritunl-client &> /dev/null || true
}
post_remove() {
    systemctl daemon-reload &> /dev/null || true
}
