This is an important and most frequently asked question. You concern for your girlfriend ands yourself is quite natural. You told that she is having herpes, and then there are chances that she is a carrier of it. Herpes is a disease that is caused by herpes simplex virus which can develop in mouth or vagina of woman. The oral type herpes is causes cold sores and rashes around the mouth area. The rashes can also appear on the face.
Since you both work on knoppix operating system therefore it is obvious that there is a shortage of time in your love life and there is not enough intimate times between you. So the first thing you should do is to try and manage work with personal life and that too very smartly. The same smartness is required to manage this as you both show while working on knoppix. You want to know that if you kiss your girlfriend whether you will also be contracted by herpes, well to answer that there is quite a possibility of it as this disease can be transmitted to a healthy person form the infected carrier if the infected person has it in his or her mouth and there is an exchange of saliva.
Herpes gets transmitted much quickly if the person is having cold sores and there is the saliva exchange. This might result in blisters on the face and the neck area and can also develop to ulcers in the mouth. Sometimes the immune system of the body can prevent it from outbreak especially if it is not affected by any other deficiency. Good day to you.