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Security => CSF Firewall => Topic started by: gryzor on April 17, 2015, 06:47:16 AM

Title: How to verify file integrity?
Post by: gryzor on April 17, 2015, 06:47:16 AM

Hello!

Last night I realized my server was sending out spam. In a hurry I shut it down and went to bed. Today I woke up, booted it, enabled the firewall (I was in the middle of the installation and hadn't finished setting it up) and after a few minutes I got the following email:

Quote

The following list of files have FAILED the md5sum comparison test. This means that the file has been changed in some way. This could be a result of an OS update or application upgrade. If the change is unexpected it should be investigated:

/usr/sbin/csf: FAILED
/usr/sbin/lfd: FAILED

The problem is, how do I know whether this was due to an update or something nefarious is going on? Is there a way to verify?

Thanks!

Title: Re: How to verify file integrity?
Post by: banane on May 11, 2015, 04:10:10 PM

it's normal: you enabled the firewall and those files are csf and lfd config files

Title: Re: How to verify file integrity?
Post by: gryzor on May 11, 2015, 04:17:15 PM

Thanks for putting my mind to ease :)