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Next, as to partition layout. |
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I was considering this partition layout: |
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/boot (ext2), 100M |
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/swap, 2048G |
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/ (ext4), 40G |
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/tmp (ext2), 2G |
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/var (xfs), 600G |
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But doing some reading, I stumbled on some other suggestions, like: |
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Bind /tmp to tmpfs, ie: |
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tmpfs /tmp tmpfs nodev,nosuid 0 0 |
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Then I read another suggestion to bind /var/tmp to /tmp: |
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/tmp /var/tmp none rw,noexec,nosuid,nodev,bind 0 0 |
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Which means that both /tmp and /var/tmp are now bound to /tmp? |
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But, I also read one one of these pages that tmpfs should NOT be used |
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for /var/tmp, because it stores files that need to be persistent across |
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reboots - is this still true? |
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My main concerns are security (which dirs should be separate so they can |
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be mounted as securely as possible, is, nodev noexec and nosuid mount |
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options)? |
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1. Should I go ahead and make separate smallish (maybe 1 or 2GB) /home |
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so I can mount it nodev,noexec,nosuid? |
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2. Should I make a separate partition for /var/tmp so I can mount it as |
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nodev,noexec,nosuid, and bind /tmp to /tmpfs as above? Or does the |
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caveat about /var/tmp storing files that need to be persistent across |
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reboots no longer apply, and I can bind them both to tmpfs? |
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3. Dumb question (google didn't give me an answer) - can I mount all of |
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/var noexec and nosuid? Assuming not... |
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4. Since I'm running dovecot with a single user (vmail), and dovecot |
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stores sieve scripts in the users 'home' dir, does this mean I can't |
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mount that directory with nodev noexec and/or nosuid? |
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5. Webapps... can I mount the dir where these are installed with |
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nodev,noexec,nosuid (I still use webapp-config to manage my website |
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installations, and currently these are in /var/www)? |
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I'm thinking an alternative would be to put all data that can be stored |
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on a partition that is mounted nodev,noexec,nosuid, ie: |
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/virtual |
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which would contain: |
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/virtual/home |
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/virtual/mail |
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/virtual/www |
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Maybe I'm overthinking/overcomplicating this, but obviously now is the |
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time to make these decisions... |
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So, comments/criticisms welcome as always... |
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