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2

Why not permit read access for all in /var/log?

rated 0 times [ 2] [ 0] / answers: 1 / hits: 8992 / 2 Years ago, fri, march 11, 2022, 3:40:17

There are many log files in /var/log that I do not have permission to read with my normal user. I have to use sudo to add read permission first. It's getting annoying, especially having to repeat the same thing on different machines.

Is there a good reason for this?

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epypian

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answered 2 Years ago antoccasiona · Accepted Answer

The /var/log files contain logged data, http://tldp.org/LDP/Linux-Filesystem-Hierarchy/html/var.html , important to note-

"/var/log/wtmp, which logs all logins and logouts into the system"

"/var/log/messages, where all kernel and system program message are usually stored"

These areas contain tons of detailed information about your system, and if even read by an outside service, could be used to compromise your whole system. I would advise not to change the permissions on this folder.