Re: Name service error for name=yahoo.com

From: Hunter Lewis (no email)
Date: Wed Jun 01 2005 - 08:27:03 EDT

  • Next message: Ralf Hildebrandt: "Re: mail relay via isp"

    /dev/rob0 wrote:
    > Hunter Lewis wrote:
    >
    >> Wietse Venema wrote:
    >> > Hunter Lewis:
    >> >
    >> >>Is there a good FAQ on postfix + chroot?
    >> >>
    >> >> From what I've picked up was to prevent some security issues in old
    >> >>versions? is that right? just curious.
    >> >
    >> > Such as?
    >>
    >> I'm not sure. I was just hoping someone might know of a doc somewhere
    >
    >
    > I obviously cannot speak for Wietse, but that question came across as an
    > insinuation that older Postfices had security issues if not chrooted.
    > TTBOMK there have been no major security issues with Postfix. Someone
    > will probably correct me if wrong.
    >
    >> that explained the pros and cons of running postfix chrooted beyond
    >> what's in the Basic Config Readme.
    >
    >
    > It's simply a best security practice, to try to minimise the damage in
    > the event of compromise. Security being like layers of an onion, chroot
    > is one more layer.
    >
    >> It seems that chroot was the standard pre 2.0, but now it's less liked.
    >>
    >> Did something change?
    >
    >
    > Probably the preferences of your packagers.
    >
    >> I've always chosen to run postfix chrooted for the added security, but
    >> I don't know what the down side is to my choice.
    >
    >
    > More work in configuring things, potentially more difficulty in
    > troubleshooting your mistakes. That's why the standard advice is (and
    > probably always was) to get things working without chroot, then try to
    > chroot later.
    >
    >> I'm sorry I'm not being very clear.
    >
    >
    > Does this answer your questions?

    Yes.

    For some reason I had it in my mind there was some mysterious piece to
    this I was missing.

    Thanks for the help.

    --Hunter


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