FileChecksum Monitoring Post: 303006534

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Operating Systems Linux FileChecksum Monitoring Post 303006534 by rbatte1 on Friday 3rd of November 2017 07:19:33 AM

11-03-2017

Moderator

Why not do an md5sum of all the files you are interested in to a single file? That way, just running md5sum -c checksums-file will do them all in one go. If you look at the file it creates, it will have the checksum and the examined filename in each record so you don't need to keep lots of separate single files and save you the worry of building/using an array.

For clarity, you can spread out your script if that helps, so saving the initial checksums:-

Code:

# However many files per line that makes sense to you, but nothing after the \ on each line

files_to_check="\
 /etc/passwd  /etc/shadow /security/access.conf \
 /etc/resolv.conf  /etc/sysconfig/network-scripts/* \
 /etc/fstab \
 /etc/httpd/httpd.conf \
 /anything/else/you/fancy \
"


md5sum $files_to_check > /var/lib/md5sums/critical.md5

Later you can just md5sum -c /var/lib/md5sums/critical.md5 and you get a nice report about the files previously listed.

I hope that this helps,
Robin

rbatte1

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LEARN ABOUT DEBIAN

service

service(8)						      System Manager's Manual							service(8)

NAME

       service - run a System V init script

SYNOPSIS

       service SCRIPT COMMAND [OPTIONS]

       service --status-all

       service --help | -h | --version

DESCRIPTION

       service	runs a System V init script in as predictable an environment as possible, removing most environment variables and with the current
       working directory set to /.

       The SCRIPT parameter specifies a System V init script, located in /etc/init.d/SCRIPT.  The  supported  values  of  COMMAND  depend  on  the
       invoked	script.  service passes COMMAND and OPTIONS to the init script unmodified.  All scripts should support at least the start and stop
       commands.  As a special case, if COMMAND is --full-restart, the script is run twice, first with the stop command, then with the start  com-
       mand.

       service --status-all runs all init scripts, in alphabetical order, with the status command.

EXIT CODES

       service calls the init script and returns the status returned by it.

FILES

       /etc/init.d
	      The directory containing System V init scripts.

ENVIRONMENT

       LANG, TERM
	      The only environment variables passed to the init scripts.

SEE ALSO

       /etc/init.d/skeleton,
       update-rc.d(8),
       init(8),
       invoke-rc.d(8).

								     Jan 2006								service(8)

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