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the problem is they both have valid points. in this,as in nearly all aspects of unix administration, there is not a single right answer. |
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-----Original Message----- |
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From: "Patrick Börjesson"<psycho@××××××××.cx> |
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Sent: 2/17/06 4:15:08 PM |
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To: "gentoo-user@l.g.o"<gentoo-user@l.g.o> |
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Subject: Re: [gentoo-user] How many GB for / partition? |
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First, I can't really understand why either one of you two won't fully |
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explain your reasonings when going against the other. It helps noone. |
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On 2006-02-17 19:04, Hemmann, Volker Armin uttered these thoughts: |
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> On Friday 17 February 2006 07:33, Alexander Skwar wrote: |
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> > Hemmann, Volker Armin wrote: |
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> > > On Thursday 16 February 2006 20:40, Alexander Skwar wrote: |
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> > >> Hemmann, Volker Armin wrote: |
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> > >> > On Thursday 16 February 2006 17:18, Alexander Skwar wrote: |
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> > >> >> Hemmann, Volker Armin wrote: |
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> > >> >> > |
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> > >> >> > Why should he make /tmp noexec, |
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> > >> >> |
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> > >> >> Security precaution. |
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> > >> > |
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> > >> > if you have 10+ users with access to the box. But a workstation, |
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> > >> > without even sshd running, it is not needed. |
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Of course, if you have a system with _no_ services running (including |
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apache, sshd and so on), or a firewall that blocks every and all |
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incoming connection attempt, then for someone to access /tmp without |
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having physical access to the system (in which case you're pretty much |
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screwed anyhow) is, as far as I know, impossible.=20 |
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This doesn't take into account client-side exploits; because with these |
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the exploiting code has access to whatever resources the user running |
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the client has, including writing to whatever areas that the user has.=20 |
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> > >> "needed" - What's "needed", anyway? |
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> > >> |
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> > >> > And hey, why should /tmp noexec save you from anything? |
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> > >> |
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> > >> Because it does. |
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> > > |
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> > > so? how? |
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> > |
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> > Think, you might find out. What does noexec do, hm? |
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> > |
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> > Even *you* might find out... |
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> > |
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> > Well... If I think about it... No, you're too clueless |
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> > to find out. |
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> > |
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> > Hint 1: "noexec" nowadays makes it impossible to execute |
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> > programs stored on that filesystem. |
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>=20 |
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> I know, but it won't save you from anything. |
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> After a user got in, he is a user. And every user has a place with write= |
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=20 |
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> permission (if he is user apache/httpd he has lots of places, where he ca= |
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n=20 |
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> store code). Outside of /tmp. |
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Where? |
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[Message truncated. Tap Edit->Mark for Download to get remaining portion.] |
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-- |
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