Please answer the following question: Facts:   - known for: lead author of `` bibles '' of system administration    - death date|disappeared date: 2013 06 04 1940 06 07    - disappeared status: 2013 06 04 at sea      - disappeared place: tasman sea    - birth date: 07 june 1940    - name: evi nemeth    - image: evi_nemeth . jpg    - occupation: author , retired professor   Based on these bullet points, write a short biography describing the life of evi nemeth .
A:
evi nemeth -lrb- born june 7 , 1940 -- missing-at-sea june or july , 2013 -rrb- was an engineer , author , and teacher known for her expertise in computer system administration and networks .she was the lead author of the `` bibles '' of system administration : `` unix system administration handbook '' -lrb- 1989 , 1995 , 2000 -rrb- , `` linux administration handbook '' -lrb- 2002 , 2006 -rrb- , and `` unix and linux system administration handbook '' -lrb- 2010 -rrb- .evi nemeth was known in technology circles as the matriarch of system administration .nemeth was best known in mathematical circles for originally identifying inadequacies in the `` diffie -- hellman problem , '' the basis for a large portion of modern network cryptography -- and has an erdős number of 2 .