In fact - everything depends on DC you got

My style - is usually to put some artifcial light source - or a weak flashlight or a candle or something else - depending on a scenery and so on. Sometimes it is even a 150W workshop lamp.

Then - you absolutely must own a tripod for your camera. Without a tripod you're left to shoot pics with flash (not advisable) or have them all moved.
Well - if there's no tripod around - you could always just put the camera on something stable.

When I finally got my set and camera steady - then a little fun with its settings.
Depending - as I said at the beginning - on a camera model - you are left only with "night scene" mode - which is fine, or a little more freedom in "manual settings mode".
I got more advanced DC, so I usually have fun in manual mode. It's now a time to experiment - add or substract aperture size, make the shutter a little faster or slower - everything depends on the final look you want to achieve.
Generally - small aperture and fast shutter gives great gloomy and atmosphric shots - but watch out not to get them too dark
And sometimes too slow shutter can give a daylike look.

And - as every night scene is different - experimenting and trying is the key

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My weekly TOP5:


The sacrifice of innocence the hailing of the gun
My way was death and madness, now let the Tower come