On Thu, Mar 16, 2023, at 7:43 AM, backu...@kosowsky.org wrote: > > Rob Sheldon wrote at about 23:54:51 -0700 on Wednesday, March 15, 2023: > > There is no reason to be concerned. This is normal. > > It *should* be extremely, once-in-a-blue-moon, rare to randomly have an > md5sum collision -- as in 1.47*10^-29
Why are you assuming this is "randomly" happening? Any time an identical file exists in more than one place on the client filesystem, there will be a collision. This is common in lots of cases. Desktop environments frequently have duplicated files scattered around. I used BackupPC for website backups; my chain length was approximately equal to the number of WordPress sites I was hosting. > You would have to work hard to artificially create such collisions. $ echo 'hello world' > ~/file_a $ cp ~/file_a ~/file_b $ [ "$(cat ~/file_a | md5sum)" = "$(cat ~/file_b | md5sum)" ] && echo "MATCH" _</email>_ Rob Sheldon Contract software developer, devops, security, technical lead _______________________________________________ BackupPC-users mailing list BackupPC-users@lists.sourceforge.net List: https://lists.sourceforge.net/lists/listinfo/backuppc-users Wiki: https://github.com/backuppc/backuppc/wiki Project: https://backuppc.github.io/backuppc/
