▁server ▁information ▁( e . g ., ▁D H CP ▁clients ) ▁and ▁programs ▁that ▁use ▁name ▁server ▁information ▁( e . g ., ▁resol vers ). ▁When ▁resol v conf ▁is ▁properly ▁installed , ▁the ▁resol v . conf ▁file ▁is ▁replaced ▁by ▁a ▁symbol ic ▁link ▁to ▁/ etc / resol v conf / run / resol v . conf ▁and ▁the ▁resol ver ▁instead ▁uses ▁the ▁dynamically ▁generated ▁linked ▁file . ▁In ▁a ▁system ▁without ▁resol v conf , ▁the ▁file ▁is ▁normally ▁maintained ▁manually ▁or ▁by ▁a ▁collection ▁of ▁scripts . ▁The ▁scripts ▁may ▁cause ▁problems , ▁because ▁there ▁is ▁no ▁program ▁to ▁control ▁access ▁to ▁the ▁file . ▁Resol v conf ▁controls ▁access ▁to ▁the ▁file , ▁allowing ▁many ▁programs ▁to ▁use ▁it ▁at ▁the ▁same ▁time . ▁ ▁resol v conf ▁cannot ▁easily ▁be ▁disabled ▁on ▁some ▁systems . ▁ ▁On ▁Free B SD ▁it ▁can ▁be ▁disabled ▁by ▁placing ▁resol v conf = NO ▁in ▁resol v conf . conf ( 5 ). ▁ ▁In ▁secure ly ▁admin ister ed ▁environments ▁the ▁resol v conf ▁program ▁( or ▁da emon , ▁depending ▁on ▁the ▁implementation ) ▁causes ▁une as iness ▁since ▁it ▁inter fer es ▁with ▁the ▁contain ment ▁of ▁resol v . conf ▁security ▁vulner abilities , ▁making ▁changes ▁to ▁it ▁without ▁authorization . ▁( Cent ral ized ▁change ▁management , ▁or ▁central ized ▁comp liance , ▁requires ▁that ▁system ▁changes ▁cannot ▁be ▁made ▁from ▁the ▁s idel ines .) ▁ ▁References ▁ ▁External ▁links