security - When is it acceptable to run app with no password on mysql? -

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it's not crucial question, i'm still wondering, when it's possible have mysql connection settings some-user@localhost no-password.

  1. it's potential risk in case of shared web-provider: other user can access database (if know some-user name).
  2. is risky in case of vps(vds)?
  3. if run own server ip, assume approach safe? wrong? mimic localhost ip outside?


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