Encrypted /tmp gets invalid access rights in Ubuntu 16.04.4

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OS: Ubuntu 16.04.4



uname -a: Linux localhost 4.15.12-x86_64-linode105 #1 SMP Thu Mar 22 02:13:40 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux



cryptsetup version: 1.6.6-5ubuntu2.1



/etc/crypttab line:



ctmp /dev/sdc /dev/urandom tmp


/etc/fstab line:



/dev/mapper/ctmp /tmp ext2 defaults,noatime,nofail 0 0


/usr/lib/tmpfiles.d/tmp.conf line (unchanged)



D /tmp 1777 root root -


Problem: after OS boots up, the permissions for /tmp are set to 755, which breaks a number of services.



If I umount /tmp, permissions for it are 1777, as expected. If I set permissions to mounted /tmp and reboot the system, it's again 755.



Is it possible to set encrypted /tmp to have and retain correct access rights automatically?










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    OS: Ubuntu 16.04.4



    uname -a: Linux localhost 4.15.12-x86_64-linode105 #1 SMP Thu Mar 22 02:13:40 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux



    cryptsetup version: 1.6.6-5ubuntu2.1



    /etc/crypttab line:



    ctmp /dev/sdc /dev/urandom tmp


    /etc/fstab line:



    /dev/mapper/ctmp /tmp ext2 defaults,noatime,nofail 0 0


    /usr/lib/tmpfiles.d/tmp.conf line (unchanged)



    D /tmp 1777 root root -


    Problem: after OS boots up, the permissions for /tmp are set to 755, which breaks a number of services.



    If I umount /tmp, permissions for it are 1777, as expected. If I set permissions to mounted /tmp and reboot the system, it's again 755.



    Is it possible to set encrypted /tmp to have and retain correct access rights automatically?










    share|improve this question























      up vote
      0
      down vote

      favorite









      up vote
      0
      down vote

      favorite











      OS: Ubuntu 16.04.4



      uname -a: Linux localhost 4.15.12-x86_64-linode105 #1 SMP Thu Mar 22 02:13:40 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux



      cryptsetup version: 1.6.6-5ubuntu2.1



      /etc/crypttab line:



      ctmp /dev/sdc /dev/urandom tmp


      /etc/fstab line:



      /dev/mapper/ctmp /tmp ext2 defaults,noatime,nofail 0 0


      /usr/lib/tmpfiles.d/tmp.conf line (unchanged)



      D /tmp 1777 root root -


      Problem: after OS boots up, the permissions for /tmp are set to 755, which breaks a number of services.



      If I umount /tmp, permissions for it are 1777, as expected. If I set permissions to mounted /tmp and reboot the system, it's again 755.



      Is it possible to set encrypted /tmp to have and retain correct access rights automatically?










      share|improve this question













      OS: Ubuntu 16.04.4



      uname -a: Linux localhost 4.15.12-x86_64-linode105 #1 SMP Thu Mar 22 02:13:40 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux



      cryptsetup version: 1.6.6-5ubuntu2.1



      /etc/crypttab line:



      ctmp /dev/sdc /dev/urandom tmp


      /etc/fstab line:



      /dev/mapper/ctmp /tmp ext2 defaults,noatime,nofail 0 0


      /usr/lib/tmpfiles.d/tmp.conf line (unchanged)



      D /tmp 1777 root root -


      Problem: after OS boots up, the permissions for /tmp are set to 755, which breaks a number of services.



      If I umount /tmp, permissions for it are 1777, as expected. If I set permissions to mounted /tmp and reboot the system, it's again 755.



      Is it possible to set encrypted /tmp to have and retain correct access rights automatically?







      16.04 cryptsetup






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      asked Apr 3 at 14:09









      Konstantin Boyandin

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