bootstrap/base-files/cron.hourly/log-acls

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Executable file

#!/bin/bash
# Sleep for up to a couple of minutes to prevent a race condition with other cron jobs.
sleep $(( RANDOM % 120 ))
# Secure /var/log
shopt -s globstar
GLOBIGNORE="/var/log/packages/:/var/log/setup/:/var/log/scripts/"
# Set standard access perms for directories
setfacl -m user::rwx,group::rx,other::- /var/log/**/
setfacl -m user::rwx,group::rx,other::x /var/log/
# Set standard access perms for files
find /var/log -type f -exec setfacl -m user::rw,group::r,other::- {} +
# Allow group 'admin' read access to all directories/files
setfacl -m group:admin:rX /var/log/**/
find /var/log -type f -exec setfacl -m group:admin:r {} +
# Set default access for new files in directories.
setfacl -dm user::rwX,group::rX,other::- /var/log/**/
setfacl -dm group:admin:rX /var/log/**/
# /var/log/wtmp needs to be readable by everyone
setfacl -m user::rw,group::r,other::r /var/log/wtmp
unset GLOBIGNORE
# To clear above ACL settings:
# setfacl -Rk /path
# setfacl -Rx group:admin: /path
# setfacl -Rx mask:: /path